Application of laser welding in power battery and super capacitor ...

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May. 26, 2025

Application of laser welding in power battery and super capacitor ...

In order to alleviate the increasingly serious energy crisis and atmospheric pollution problems, my country, like the developed countries such as the United States, Japan and Germany, is focusing on promoting the development of the new energy vehicle industry chain and making it a national strategic priority industry. The national "New Energy Vehicle Technology Development "Twelfth Five-Year" Special Plan" has made electric vehicles one of the main directions for the future development of China's automobiles; China plans to have 1 million new energy vehicles in , and a power battery production capacity of approximately 100 Billion watt-hours; by , the annual sales of new energy vehicles will reach 2 million units.

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The battery reliability, high cost, and lack of production capacity of new energy vehicles is a worldwide problem. The reliability and stability of existing battery technology is insufficient, and the cycle life of products is not long and other factors have long affected new energy vehicles. development of. In recent years, major automobile manufacturers have invested huge research and development expenses in new energy vehicles and have also made great progress. It is foreseeable that the next ten years will be a decade of explosive growth of new energy vehicles.

Shenzhen Lianying Laser Co., Ltd. has made great progress in cooperating closely with various battery manufacturers to jointly develop laser welding technology for automotive power batteries. So far, we have designed and manufactured fully automatic or semi-automatic laser welding production lines for hundreds of domestic power battery manufacturers, and have obtained very rich practical experience.

One, the main parts of power battery laser welding

Power battery cells can be divided into three types according to their appearance, namely square, cylindrical and soft-packed cells (see Figure 1). The shell materials are mainly aluminum and stainless steel, but aluminum is the main material, of which the series and series are more.

Figure 1 Common power battery shape

At present, these three types of batteries are used in domestically produced electric vehicles: For example, BYD E6 and K9 electric vehicles use square batteries; Hangzhou Wanxiang is a battery cell supplier and some electric vehicle manufacturers use its soft pack batteries. ; Certain electric vehicle models of SAIC Motor use round batteries made by the American company A123. The automated laser welding systems and processes of these three types of batteries are also different; on the whole, prismatic batteries are the majority.

There are four main laser welding parts for various batteries: the packaging of the shell, according to the position 口) welding, the welding of the battery's tabs and the top cover. In addition, the welding of the super capacitor is mainly based on the welding of the connecting piece and the negative electrode seal. The welding positions of various power batteries and super capacitors are shown in Figure 2.

Figure 2 Laser welding of various batteries

2. Difficulties in welding process of power battery

Generally, the shell thickness is required to be 1.0 mm or less, and mainstream manufacturers currently have two main shell material thicknesses: 0.6mm and 0.8mm according to the battery capacity. Welding methods are mainly divided into side welding and top welding. The main advantage of side welding is that it has a small impact on the inside of the cell, and spatter will not easily enter the inside of the cover. Since the welding may cause bumps, which will have a slight impact on the subsequent process assembly, the side welding process has higher requirements on the stability of the laser, the cleanliness of the material, and the matching gap between the top cover and the shell. The top welding process can use a more efficient galvanometer scanning welding method because it is welded on one surface, but it has high requirements for the previous process to enter the shell and positioning, and has high requirements for equipment automation.

At present, aluminum shell batteries account for more than 90% of the entire power battery. The laser welding of aluminum is very difficult, and it will face the problem of surface protrusion of the weld mark, the problem of pores, the problem of fire, and the problem of internal air bubbles. Surface protrusions, pores, and internal bubbles are fatal injuries of laser welding. Many applications have to be stopped or avoided due to these reasons. Many battery manufacturers will be troubled by this in the early stage of research and development. The main reason is that the fiber core diameter is too small or the laser energy is set too high. There are also many factors that cause explosions (also known as Splash), such as the cleanliness of the material, the purity of the material itself, and the characteristics of the material itself. The decisive role is the stability of the laser. In power battery welding, the welding process technicians will select the appropriate laser and welding process parameters according to the customer’s battery material, shape, thickness, and tensile requirements, including welding speed, waveform, peak value, welding head inclination angle, etc. to set reasonable Welding process parameters to ensure that the final welding effect meets the requirements of power battery manufacturers.

Due to factors such as the matching accuracy of the incoming materials, the square battery is most likely to have problems at the corners during welding. It is necessary to continue to explore according to the actual situation and adjust the welding speed to solve these problems. The circular battery does not have this problem, but the subsequent integration into a battery module is more difficult.

3. Brief introduction of laser automatic welding system for power battery

Figure 3 is a square power battery automatic laser welding line, including two production lines with welding, leakage detection, short circuit detection and coding marking as the main functions. The production capacity is ≧16PPM, and the welding strength is above 6kgf/c㎡ without leakage.

This system can complete the laser welding, air tightness test, short circuit test, battery marking, automatic rejection of unqualified products and other related processes in sequence.

The laser welding part is composed of laser, laser welding head, XYZ three-axis motion control axis, rotating mechanism, battery fixture (compression and correction fixture), loading and unloading manipulator, etc. Its main function is to clamp the battery from the assembly line Go to the soldering workbench for soldering operations, and put it on the reflow line after soldering.

The air tightness and short circuit test part is composed of air tightness test components, short circuit test components, internal assembly line conveying system, inspection feeding manipulator, inspection and unloading manipulator, etc. Its main function is: the battery clamp after welding on the assembly line Hold it to the internal assembly line conveying system, and perform positioning, air tightness, and short-circuit related tests in sequence. After the test is completed, the good products are returned to the mainstream water line, and the defective products are captured in the waste box. The leak detection part adopts the tripartite test function of pole and cover plate.

The marking part is composed of a laser marking machine, a grasping and positioning mechanism, etc. Its main function is to mark the product after welding. Metal products (including aluminum) can be tested with positive pressure, short-circuit test has a 12-digit number plus letter code (three-digit letter code). , 9-digit digital code), plus 8*8 two-dimensional code.

The assembly line part is composed of the assembly line double-speed chain, fixture tray, positioning cylinder, blocking and distributing cylinder, etc. Its main function is to drive the battery to the corresponding position, which is convenient for welding and inspection, and has a certain storage function.

Figure 3 Fully automatic laser welding line for square power battery

Figure 4 is a semi-automatic production line for the top cover of a square battery. The welding workbench is controlled by industrial PLC. The welding battery range is H: 130-300mm, W: 110-250mm, T: 20-50mm, and the welding pattern trace is Flat rectangle, automatic welding process.

The system can be used with the circular conveyor line for automatic laser sealing welding of the battery top cover and the shell, where the top cover and the shell are made of stainless steel or aluminum alloy. Welding parameters can be set through the operation interface. After welding, ensure that there is no leakage in the weld. After welding, it meets the withstand voltage test requirements. It will not damage or damage the surrounding parts of the battery. It has both automatic and manual functions.

Figure 4 Automatic laser welding line for the top cover of the square power battery

Four, summary

High-efficiency and precise laser welding can greatly improve the safety, reliability and service life of automotive power batteries, which will surely bring revolutionary advancements in automotive power technology in the future. There are many laser welding parts for power batteries, and there are requirements for pressure resistance and leakage testing. Most of the materials are aluminum, so welding is difficult and requires higher welding technology. In the future, most manufacturers need fully automatic production lines, which will further increase the difficulty of integration of the welding system. High-quality power batteries require close collaboration between the manufacturer’s designers and laser welding technicians to optimize the design in terms of material, shape, thickness, process, and real-time inspection to achieve the desired welding effect.

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STC-BRY-200 hot flat pressing machine is used for pouch cell cores hot flat pressing after stacking /winding to make it easy to put into aluminium-laminated case and pouch cell formation. The heating pressing die size is 200 x 200mm. The heating temperature room temperature ~ 250℃ adjustable.

Single-sided Double Stations Vacuum Glove Box for Cylindrial Cell Battery Research

STC-VGB-12S is an internet of things vacuum glove box, centralized equipment management, intelligent analysis & early warning of equipment status, the abnormal alarm message is actively pushed, remote fault diagnosis and online debugging. H2O & O2<1ppm. It is double working stations in single side, big working space inside.

Box-type Drying Furnace for Lab Research

5V12A 8 Channels Battery Testing Equipment for Cylindrical Cell

STC-Tn-5V12A is a three range output current tester, 5mA-1A, 1A-6A, 6A-12A. The accuracy for current and voltage on these channels is ±0.05% FS. It is widely used for manufacturers, universities and labs.

Semi-auto Stacking Machine for Pouch Cell Electrode Making

STC-BDP-SMC200 is a semi-auto stacking machine which is used for stacking pouch cell anode, cathode and separator by "Z" shape to make a pouch battery cell core. The stacking size is adjustable.

50L Compact Vacuum Drying Chamber Equipped with Inert Gas Valves for Lab

STC-KZK-502D is a compact vacuum drying oven equipped with inert gas valve widely used in laboratory, it is applicable for the drying, sterilization and heat treatment for the articles under vacuum conditions.The heating temperature max to 200℃ adjustable.

90L Vacuum Battery Electrode Drying Cabinet for Lab Battery R&D

STC-KZK-904 is a lab vacuum dry oven widely used in laboratory, it is applicable for the drying, sterilization and heat treatment for the articles under vacuum conditions. The heating temperature max to 200℃ adjustable. It is a 90L volume with four layers bracket.

4x500ml Planetary Ball Milling Machine for Lab Pouch Cell Research

500ml Planetary Slurry Vacuum Mixer for Lab Pouch Cell Research

25L Vacuum Drying Oven for Lab Battery Material Drying

STC-KZK-252D is a compact vacuum dry oven widely used in laboratory, it is applicable for the drying, sterilization and heat treatment for the articles under vacuum conditions. The heating temperature max to 200℃ adjustable. It is a 25L volume with two layers bracket.

Compact Vacuum Tape Casting Machine for Lab Battery Research

Air-forced Drying Oven for Lab Research

STC-KGF-502 is a compact drying oven widely used in laboratory, it is applicable for the drying, sterilization and heat treatment for the articles under vacuum conditions. Heating time and temperature can be set. Air-forced circulation system can improve the temperature uniformity inside the chamber.

Compact Automatic Vacuum Film Coater with Heating Cover & Vacuum Chuck

Large Vacuum Tape Casting Machine with Top Cover Heater for Pouch Battery Electrode Making

25L Compact Lab Vacuum Dry Oven with Digital Temperature Display

STC-KZK-252 is a compact vacuum dry oven widely used in laboratory, it is applicable for the drying, sterilization and heat treatment for the articles under vacuum conditions. The heating temperature max to 200℃ adjustable. It is 25L volume with 2 layers bracket.

Roll to Roll Coater Equipment for Lithium Pouch Cell Electrode

NMP Filtration System for Battery Coating

It is mainly applied for the filtration treatment of the solvent in the exhaust gas generated during battery coating process.

Muffle Furance Box-type Drying Chamber for Lab Research

This furnace is mainly used for carrying out the sintering, annealing and oxidation experiment for ceramic material, composite material, mental material, functional material, heating material, crystal material, etc. It is widely used for universities, research institutes, enterprise R&D centers, quality inspection units, processing industries, etc.

Heat Rolling Press Machine for Pouch Cell Fabrication

STC-DRG-100 is used for battery electrode rolling press for battery research after coating and drying. It is with digital dial indicator, easy to operate.

Desktop Lab Vacuum Oven

Lab Battery Electrode Rolling Press Machine with Digital Micrometer for Pouch Cell

STC-DDG-100 is used for battery electrode rolling press for battery research after coating and drying. It is with digital dial indicator, easy to operate.

50L Compact Vacuum Drying Oven for Laboratory

Double-sided 2 Work Stations Vacuum Glove Box for Lab Pouch Cell Making

STC-VGB-12D is an internet of things vacuum glovebox, centralized equipment management, intelligent analysis & early warning of equipment status, the abnormal alarm message is actively pushed, remote fault diagnosis and online debugging. H2O & O2<1ppm. It is 2 work stations glove box, one work station in front, one work station in the back.

90L Vacuum Battery Electrode Drying Cabinet for Lab Pouch Battery R&D

Vacuum Pump for Lab Vacuum Equipment

This vacuum pump is an oil sealed single-stage rotary vane pump, can be used to pump inactive gas within the scope of low vacuum and a small amount of non-condensable gas, Special suitable for packaging machinery, analytical instrument, laboratory and etc.

Lab Vacuum Slurry Mixing Machine for Battery Making

STC-EBJ-150 is a bench-top vacuum mixer with vacuum mixing and dispersion function, which is widely used for battery slurry mixing, powder and ceramic material mixing under vacuum condition to remove the gas bubble. It has a 150ml mixing container, other volume of mixing container is optional.

20L Square-shape Planetary Ball Milling Machine

STC-XQM-20B planetary ball milling machine is widely used in many fields,like geology, mine, metallurgy, electric industry, construction, ceramics, chemicals, light industry, medicine, etc. Different material of milling jar is optional according to the milled material.

150ml Compact Planetary Vacuum Mixer for Lab Battery Slurry Mixing

STC-EXJ-150 is a compact planetary vacuum mixer with vacuum mixing and dispersion function. It is widely used for battery slurry mixing, powder and ceramic material mixing. Built-in vacuum pump is designed for maximum remove the gas bubble.

12L Planetary Ball Milling Machine for Laboratory Lithium Battery Material Milling

STC-XQM-12A planetary ball milling machine is a laboratory multi-application powder material milling equipment, which is widely used in many fields, like geology, mine, metallurgy, electric industry, construction, ceramics, chemicals, light industry, medicine, etc.

500ml Planetary Vacuum Slurry Mixer for Lab Material Research

Lab Slurry Filtering Machine for Battery Material Fabrication

STC-EGL-500 filtering device is mainly used for sample testing in lab, which is applied in filtering various of hard particles whose size is no less than 124µm in slurry. Exquisite appearance, and convenient to operate.

4x500ml Planetary Ball Milling Machine for Lab Research

Desktop Planetary Ball Mill with 4x100ml Milling Containers for Lab Material Grinding

STC-XQM-0.4A planetary ball mill is widely used in many fields of geology, mine, metallurgy, electric industry, construction, ceramics, chemicals, light industry, medicine, etc. 4pcs 100ml milling containers included. Compact size, low noise, it is a perfect device for lab material milling.

8 Channels 5V10mA Battery Tester

Super Capacitor Automatic Winding Machine

It is a fully automatic winding machine for lithium batteries supercapacitor, which is with the function of monitoring winding length and diameter. It is capable to carry out chamfer, hole punching, short circuit testing, it features stable working status and technology guarantee.

Lab Compact Battery Slurry Feeding System

This slurry feeding system is used for battery electrode coating Slurry feeding, and also can be applied in others slurry feeding. It has exquisite appearance, equips with two pumps and cache tanks for cathode & anode slurry feeding for high efficiency operation.

Planetary Ball Mill for Glove Box Use

STC-XQM-0.2A is a supper mini model of vertical planetary ball mill, which is specially designed to be used for grinding materials under vacuum or inert gas atmosphere conditions inside the glove box. The split design makes it convenient to use inside of glovebox, it can effectively avoid the operating buttons being obscured when the lid is open.

8 Channels 5V50mA Battery Testing Equipment

STC-Tn-5V50mA is a 8 channels battery testing system used for coin cell testing from 5uA~50mA, up to 5V. It is three range, 5uA~1mA,1mA~25mA,25mA~50mA.It is a reliable device for universites.

Supercapacitor Vacuum Drying Oven

It is mainly used for vacuum drying, nitrogen filling and cyclic baking of batteries and supercapacitors. The product is kept in an anhydrous and oxygen-free environment and transferred into the glove box for liquid injection.

Slurry Feeding Machine for Battery Electrode Coating

STC-ESL-5L slurry feeding system is mainly used for slurry feeding when battery electrode coating, and also can be applied in other slurry feeding.

Micro Vibration Ball Milling Machine for Lab Material Grinding

STC-XQM-VB Micro vibration ball milling machine is a high-power micro vibration ball milling and material mixing machine, which is suitable for small batch material ball milling and mixing of small amounts of substances. It used 2 ml disposable screw microtubes, and mixing of 3 samples can be performed simultaneously (usually can be performed within 45s)

Supercapacitor Forming Machine

It is mainly used to trim and align the cells of batteries and supercapacitors and compact the end faces of negative poles, to facilitate laser welding the upper and lower current collectors.

80 Channels 5V6A Battery Testing Equipment

STC-Tn-5V6A is a three range output current tester, 0.5mA ~ 0.1A, 0.1A ~ 3A, 3A ~6A. The accuracy for current and voltage on these channels is ±0.05% FS. It is widely used for manufacturers, universities and labs.

5L Planetary Slurry Vacuum Mixer for Lab Pilot Line

Lab Vibration Machine with 6 Layers Sieves for Battery Macking Making

This machine is a standard analytical sieve that integtrates powder classification and liquid filtration; it is suitable for laboratories and quality inspection rooms for accurate analysis of particle size structure of particles and ppowders, liquid solids content and sundries content testing analysis.

Planetary Ball Miller for Lab Research with 4x500ml Milling Container

8 Channels 5V6A Battery Testing Equipment

5V12A 8 Channels Battery Testing Equipment

Supercapacitor Cell to Case Insert Machine

It is used to press supercapacitors (after the welded cell is assembled with O-ring of the upper cover) into the case and fasten the O-ring to the inner seal.

Battery Internal Resistance Testing Machine for Lab Research

Internal resistance testing machine is mainly used for testing the internal resistance and voltage of various batteries, with the features of small size, light weight, exquisite appearance, stabile performance and easy to carry.

Ox-horn Supercapacitor Hole Punching Machine

STC-SCK-OX is used for ox-horn supercapacitor core and pole ear punching. Different size of punching die is optional, easy to replace die.

100V30A Battery Testing System

100V30A battery testing system used for EV battery pulse charging&discharging, direct current internal resistance, cycle life and rate. It's mainly used for institutions, colleges, universities and battery factory.

Semi-auto Winding Machine for Supercapacitor

It is used for cylindrical cell winding. Manually load the electrode to the winding part, winding with separator, the tape sticking and unloading will be finished automatically.

60T Hydraulic Tablet Pressing Machine for Powder into Piece

Tablet pressing machine is used for pressing the powder into piece, which is widely applied in scientific research, teaching, testing, pharmacy, catalysis, chemical industry, etc.

Double-sided 2 Work Stations Vacuum Glove Box for Lab

100V20A Battery Testing Equipment

100V20A battery testing system used for EV battery pulse charging&discharging, direct current internal resistance, cycle life and rate. It's mainly used for institutions, colleges, universities and battery factory.

40 Ton Lab Manual Hydraulic Tablet Pressing Equipment for Powder into Pellet Making

Tablet pressing machine is used for pressing the powder into piece, which is widely applied in scientific research, teaching, testing, pharmacy, catalysis, chemical industry, etc.

3 Part Quick to Open Vacuum Glove Box for Battery Polit line

STC-VGB-33S vacuum glove box is used for battery pilot line, and factory production. It is a quick to open vacuum glove chamber with three seactions. This machine is an ideal equipment for battery pilot line and factory production.

Lab Compact Manual Hydraulic Tablet Press Machine for Coin Cell Machine

Tablet pressing machine is used for pressing the powder into piece, which is widely applied in scientific research, teaching, testing, pharmacy, catalysis, chemical industry, etc.

4 Paths Film Applicator with Fixed Thickness

It is fixed thickness precision film applicator with four paths for lab small qty coating, various of models can be optional.

100mm Width Micrometer Adjustable Doctor Blade

It is a compact device for various of coating research for lab, especially for battery electrode coating, ceramic coating, nano film, etc.

150mm Width Fixed Film Coating Applicator for Lab Research

It is a fixed thickness precision film applicator for lab small qty coating, various of models can be optional.

Digital Micrometer Film Applicator

Widely used for various coating researches in lab, like battery electrode, ceramic film, crystalline film, nano film, etc.

Internet of Things Vacuum Glovebox with Gas Purification System H2O & O2 < 1ppm

STC-VGB-11S is an internet of things vacuum glovebox, centralized equipment management, intelligent analysis & early warning of equipment status, the abnormal alarm message is actively pushed, remote fault diagnosis and online debugging. H2O & O2<1ppm.

100mm Width Micrometer Film Applicator for Lab Coating Research

It is a compact device for various of coating research for lab, especially for battery electrode coating, ceramic coating, nano film, etc.

Supercapacitor Electrolyte Filling Machine

It is used for supercapacitor electrolyte filling. Vacuuming filling and pressurization working process is used, which features high consistency, reliability and safety of electrolyte absorption.

15 Ton Lab Single Punch Hydraulic Pressing Machine for KBr Sample Pressing Equipment

Tablet pressing machine is used for pressing the powder into piece, which is widely applied in scientific research, teaching, testing, pharmacy, catalysis, chemical industry, etc.

Single-sided Double Stations Vacuum Glove Box for Battery Research

150mm Width Adjustable Film Coating Applicator for Lab Research

It is a compact device for various of coating research for lab,especially for battery electrode coating,ceramic coating ,nano film,etc.The coating width can be adjusted.

Supercapacitor Forming Machine

It is used supercapacitor cell core forming to makes positive and negative end surface compact, facilitate the upper and lower current collector laser welding.

Lab Bench-top Drying Powder Tablet Hydraulic Punching Equipment for Preparing Compound Samples

Tablet pressing machine is used for pressing the powder into piece, which is widely applied in scientific research, teaching, testing, pharmacy, catalysis, chemical industry, etc.

250mm Width Adjustable Film Coating Applicator for Lab Research

It is a compact device for various of coating research for lab, especially for battery electrode coating, ceramic coating, nano film, etc. The coating width can be adjusted.

15T Laboratory Single Punch Hydraulic Pressing Machine for Tablet Press

Tablet pressing machine is used for pressing the powder into piece, which is widely applied in scientific research, teaching, testing, pharmacy, catalysis, chemical industry, etc.

IOT Two-part Double Work Stations Vacuum Glovebox

STC-VGB-22S is an internet of things vacuum glovebox, centralized equipment management intelligent analysis & early warning of equipment status, the abnormal alarm message is actively sent, remote fault diagnosis and online debugging.

Supercapacitor Cell to Case Insert Machine

It is used to press supercapacitors (after the welded cell is assembled with the O-ring of the upper cover) into the case and fasten the O-ring to the inner seal.

12 Ton Lab Dry Powder Hydraulic Pressing Machine

Tablet pressing machine is used for pressing the powder into piece, which is widely applied in scientific research, teaching, testing, pharmacy, catalysis, chemical industry, etc.

Ox-horn Supercapacitor Sealing Machine

It is used for small Ox-horn supercapacitor aluminum can automatic spinning pressing sealing machine.

5 Ton Lab Hydraulic KBr Sample Pressing Machine for Pellet Press

Tablet pressing machine is used for pressing the powder into piece, which is widely applied in scientific research, teaching, testing, pharmacy, catalysis, chemical industry, etc.

New-dedigned Supercapacitor Battery Secondary Crimping Machine

It is suitable for secondary molding, sealing and crimping of battery and supercapacitor cases.

Semi-auto Pouch Cell Electrode Die Cutting Machine for Lab Research

STC-BMQ-SM280 semi-auto electrode die cutter is a necessary equipment for pouch cell preparation, it is used for pouch cell electrode cutting to produce specific shapes of cathode and anode with current collector tab.

Semi-auto Pouch Cell Cup Punching Machine for Polymer Battery Research

STC-BCK-SM200 semi-auto case /cup forming machine is used for prepare pouch cell case made of aluminum-laminated films.IR sensor, dual start buttons and protection cover are included for safety operation.

Battery Electrode Stacking Machine for Lab Pouch Cell Research

STC-BDA200-1 is a semi-auto stacking machine which is used for stacking pouch cell anode, cathode and separator by "Z" shape to make a pouch battery cell core. The stacking size is adjustable.

Pouch Cell Hot Flat Press Machine for Lab Battery Research

STC-BRY-200 hot flat pressing machine is used for pouch cell cores hot flat pressing after stacking, winding to make it easy to put into aluminum-laminated case and pouch cell formation.

Lab Polymer Pouch Cell Case Top & Side Edges Hot Sealing Machine

STC-BRF-G200 is a pouch cell aluminum-laminated case edges hot sealing with tab machine before electrolyte filling process. The temp of upper and lower sealing head can be controlled separately and settable.

Vacuum Pre-sealing Machine for Pouch Cell Making

STC-BYF-200 is used for pouch cell aluminum-laminated case vacuum pre-sealing after battery liquid filling into cell.

Compact Pouch Cell Secondary Sealing Machine for Lab Battery Research

STC-BEF-200 vacuum sealer is used for pouch cell final vacuum sealing after electrolyte injection and cell formation, it is with auto piercing function to de-gassing the cell and do a secondary sealing under vacuum condition. It is touch screen operation high automation.

Vacuum Electrolyte Diffusion Chamber for Pouch Cell Lab Research

STC-BJZ-300 is mainly used for absorbing the electrolyte and making it mixed with electrode more completely under the condition of vacuum after injecting electrolyte to pouch cell.

Supercapacitor Manual Riveting Machine

STC-SMJ-OX is a manual riveting machine which is used for supercapacitor cap and tab riveting .

Mini Lab Vertical Planetary Ball Mill with 4x50ml Ports Grinding

STC-XQM-0.2A planetary ball mill is widely used for geology, mine, metallurgy, electric industry, construction, ceramics, chemicals, light industry, medicine.It is with 4pcs 50ml milling jars. Milling speed, time and mode can be set according to different experiment requirement.

Bottle Top Burettes Titreet for Cylindrical Battery Electrolyte Filling

It is the first bottle-top burette to meet class A error limits for glass burettes. In addition, it stands out for easy titration, a compact design, excellent precision, an exchangeable dosing unit.

Pin-supercapacitor Grooving & Crimping Machine

This equipment is used for pin supercapacitor aluminum case grooving and crimping. It is a multi-functional device which is compact size, high efficiency for small size supercapacitor research.

Vacuum Electrolyte Diffusion Equipment for Lab Cylindrical Cell Fabrication

STC-BJZ-300 is mainly used for absorbing the electrolyte and making it mixed with electrode more completely under the condition of vacuum after injecting electrolyte to cylindrical cell.

Lab Planetary Ball Miller with 4x100ml Grinding Containers for Coin Cell

4'' Width Electric Roll Press Machine for Battery Electrode Pressing

STC-DDG-100 is a compact electric roll press can be used for battery electrode pressing for battery research. The pressing thickness and speed can be adjusted.

Touch Screen Controlled Electric Crimper for Coin Cell Research

Laboratory Cylindrical Battery Case Grooving Machine for Cylinder Battery

STC-CGC-SM18 semi-auto cylindrical cell case grooving machine, which is mainly used in laboratory for , , , cylindrical cell grooving.

800mm Film Coating Machine with Bottom Heater

STC-TMH-B800 is a compact tape casting film coating machine with vacuum chuck which widely used in all kinds film coating research, like ceramic films, crystal films, lithium battery electrode coating, etc.

350mm Width Battery Electrode Slitting Machine for Cylindrical Battery Making

STC-DFT350 is a semi-auto slitting machine for cylindrical cell electrode for battery research. The slitting width can be made according to requirement.

Compact Slurry Vacuum Mixer for Lab Research

STC-EBJ-150 is a desktop vacuum mixer with vacuum mixing and dispersion function. It is widely used for battery slurry mixing, powder and ceramic material mixing under vacuum condition to remove the gas bubble.It is with 150ml mixing container, other volume of mixing container is optional.

Battery Electrode Rolling Press Machine with Digital Micrometer

STC-DDG-100 is used for battery electrode rolling press for battery research after coating and drying. It is with digital dial indicator, easy to operate.

Coin Cell Electrode Cutting Machine for Laboratory Research

STC- PT-10 is a coin cell disc cutter for electrode precision cutting, which can be easily placed into a glovebox.

Lab Battery Tape Casting Machine for Laboratory Battery Rsearch

STC-TM-300 is a compact tape casting machine with vacuum chuck which widely used in all kinds film coating research, like ceramic films, crystal films, lithium battery electrode coating, etc.

350mm Width Battery Electrode Slitting Machine

STC-DFT350 is a semi-auto slitting machine for cylindrical cell electrode for battery research. The slitting width can be made according to requirement.

Integrated Coin Cell Automatic Assembling Machine

This equipment is designed for full-process integration of coin cell manufacturing, combining manual preparation tray loading, automated taking material, electrolyte filling, and cell crimping into a single equipment.

Dry Electrode Continuous Roll Pressing & Film Forming Machine

This equipment is designed for precision rolling of non-ferrous materials such as dry electrode compositions under certain temperature conditions.

High Accuracy Slot Extrusion Film Coating Machine

This product is used for applied to the surface coating of sheet substrates, which is widely used in various high-temperature film coating research.

8 Channels Horizontal Hot Press Formation Machine for Pouch Cell

Contact us to discuss your requirements of Laser Welder for Prismatic Rechargeable Li-ion Battery. Our experienced sales team can help you identify the options that best suit your needs.

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