CN108172921B - Air extraction method of soft package battery - Google Patents
Air extraction method of soft package battery Download PDFInfo
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- CN108172921B CN108172921B CN201810097017.1A CN201810097017A CN108172921B CN 108172921 B CN108172921 B CN 108172921B CN 201810097017 A CN201810097017 A CN 201810097017A CN 108172921 B CN108172921 B CN 108172921B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/52—Removing gases inside the secondary cell, e.g. by absorption
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention provides an air extraction method of a soft package battery, which relates to the technical field of lithium ion battery manufacturing processes and comprises the following steps: firstly, preparing a battery to be pumped after formation is finished, and carrying out primary flat pressing on the formed battery; secondly, performing one-pumping one-sealing on the battery subjected to the primary flat pressing; thirdly, performing secondary flat pressing on the battery after the first pumping is finished; fourthly, performing secondary pumping and secondary sealing on the battery subjected to secondary flat pressing, and entering the next procedure; the method has the advantages that a one-time flat pressing mode is used before air exhaust of the battery is finished after formation, a certain external force is applied to the battery, expansion of the positive and negative plates due to the plates in the air exhaust process can be reduced, and the technical problems in the prior art that the appearance of the battery is poor after air exhaust, the hardness of the battery is unqualified after air exhaust is influenced, the electrical performance of the battery is influenced, the manufacturing cost is increased, and the manufacturing efficiency of the battery is reduced are solved; the gas and the redundant electrolyte in the battery core can be removed to the maximum extent, and the hardness and the flatness of the battery are guaranteed to the maximum extent.
Description
Technical Field
The invention relates to the technical field of lithium ion battery manufacturing processes, in particular to an air extraction method of a soft package battery.
Background
The lithium ion battery (hereinafter referred to as a lithium battery) has the advantages of high voltage, high energy density, high safety, low self-discharge rate and the like, and is a promising new energy; with the further development of scientific technology and the increasingly prominent energy problem and environmental problem, people have higher and higher requirements on lithium batteries; in the application fields of electric automobiles, solar energy storage batteries, energy storage power stations, smart phones, portable computers and the like, the lithium battery is required to have high capacity, high power, high stability, high safety and high consistency, and the air extraction process of the soft package liquid lithium ion battery is one step of final packaging of battery forming.
In the prior art, in the air extraction process of a soft package liquid lithium ion battery, the formed battery is directly extracted to remove gas in a battery cell and seal the battery cell, which is also called as final sealing; whether the degassing effect is good or not directly affects the electrical performance and the appearance of the battery.
However, in the prior art, the soft-package liquid lithium ion battery is subjected to direct air extraction on the formed battery, which results in poor appearance of the battery after air extraction and unclean air extraction of the battery, thereby affecting the unqualified hardness of the battery after air extraction, causing the incomplete extraction of redundant electrolyte in the battery core, causing the loose contact between pole pieces and affecting the performance of the electrical property of the battery; in addition, after the air extraction is finished, the hardness of the soft battery is still unqualified after the capacity-grading charge and discharge are finished, and redundant electrolyte in the battery is consumed by performing charge and discharge for many times, so that the hardness of the battery is guaranteed, the manufacturing cost of the battery is greatly increased, and the manufacturing efficiency of the battery is reduced.
Disclosure of Invention
The invention aims to provide an air extraction method of a soft package battery, which aims to solve the technical problems that the appearance of the battery is poor after air extraction, the hardness of the battery is unqualified after air extraction is finished, the electrical performance of the battery is influenced, the manufacturing cost is increased, and the manufacturing efficiency of the battery is reduced in the prior art.
The invention provides an air extraction method of a soft package battery, which comprises the following steps:
firstly, preparing a battery to be pumped after formation is finished, and carrying out primary flat pressing on the formed battery;
secondly, performing one-pumping one-sealing on the battery subjected to the primary flat pressing;
thirdly, performing secondary flat pressing on the battery after the first pumping is finished;
and fourthly, performing secondary pumping and secondary sealing on the battery subjected to secondary flat pressing, and entering the next working procedure.
Further, the first step comprises the following steps:
step 101, detecting the thickness of the formed battery, and setting the limiting thickness of the flat pressing equipment according to the thickness of the battery;
and 102, conveying the formed battery to a flat pressing part of a flat pressing device for primary flat pressing.
Further, the range of the limiting thickness of the flattening equipment is as follows: the thickness of the formed battery is +/-0.2 mm.
Further, the second step comprises the following steps:
step 202, performing primary vacuum pumping on the battery subjected to primary flat pressing, and performing primary sealing along one end of the battery, which is far away from the battery core.
Further, a roller is arranged in the pumping device to exhaust the gas in the battery before pumping.
Further, the third step comprises the following steps:
301, adjusting the limiting thickness of the flattening equipment;
and 302, conveying the battery after the one-pumping and one-sealing operation to a flattening device, and performing secondary flattening to limit the flatness of the battery.
Further, the flattening apparatus is either a platen press or a roll press.
Further, the fourth step includes the steps of:
step 401, transferring the battery after the secondary flat pressing is finished to two air pumping devices;
step 402, setting two sealing areas along the edge of a battery cell of the battery so as to divide the battery into a battery cell area and an air bag area through the two sealing areas;
step 403, cutting the air bag region, and simultaneously performing air suction and packaging at the position of the two sealing regions to limit the air tightness of the electric core region;
step 404, the two sealed batteries are transmitted to the next process.
Further, the two sealing regions set in step 402 are formed by placing the battery after the secondary flat pressing in the groove of the two air extracting devices, and forming the two sealing regions along the edge of the groove.
Further, a plurality of clamps for fixing the battery are arranged in the groove.
The invention provides an air extraction method of a soft package battery, which comprises the following steps: firstly, preparing a battery to be pumped after formation is finished, and carrying out primary flat pressing on the formed battery; secondly, performing one-pumping one-sealing on the battery subjected to the primary flat pressing; thirdly, performing secondary flat pressing on the battery after the first pumping is finished; fourthly, performing secondary pumping and secondary sealing on the battery subjected to secondary flat pressing, and entering the next procedure; the method has the advantages that a one-time flat pressing mode is used before air exhaust of the battery is finished after formation, certain external force is applied to the battery, and the phenomena that the thickness difference of the battery is influenced and the air exhaust is not clean due to deformation of the pole pieces or air bubbles between the pole pieces caused by expansion of the pole pieces in the air exhaust process of the positive pole piece and the negative pole piece can be reduced; the technical problems of poor battery appearance after air extraction, influence on unqualified battery hardness after air extraction, influence on electrical performance of the battery, increase in manufacturing cost and reduction in manufacturing efficiency of the battery in the prior art are solved; after the one-time flat pressing is completed, the air exhaust process is performed again, the gas and the redundant electrolyte in the battery core can be removed to the maximum extent, the hardness and the flatness of the battery are guaranteed to the maximum extent, and the process for manufacturing the battery is more complete.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is an overall process flow chart of an air extraction method for a pouch battery provided in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a flattening device in the air exhausting method for the pouch battery according to the embodiment of the present invention;
fig. 3 is a schematic structural diagram of an air extracting device in an air extracting method of a pouch battery according to an embodiment of the invention;
fig. 4 is a schematic diagram of a battery structure in an air extraction method of a pouch battery according to an embodiment of the present invention.
Icon: 100-flattening equipment; 200-air extraction equipment; 201-grooves; 300-a sealing area; 400-two sealing areas; 500-a die area; 600-gas pocket area.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, their indicated orientations or positional relationships are based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Fig. 1 is an overall process flow chart of the air extraction method of the pouch battery provided in this embodiment.
Fig. 2 is a schematic structural diagram of a flattening apparatus 100 in the air suction method for the pouch battery provided in this embodiment; wherein the primary and secondary flat pressing can be performed on the battery by the flat pressing apparatus 100.
Fig. 3 is a schematic structural diagram of an air extracting device in the air extracting method of the pouch battery provided in this embodiment; wherein, the inside of air extraction equipment 200 is provided with a first air extraction equipment 200 and a second air extraction equipment 200, and the inside of the second air extraction equipment 200 is provided with a groove 201.
Fig. 4 is a schematic diagram of a battery structure in the air extraction method of the pouch battery provided in this embodiment. Wherein the two-package region 400 divides the battery into a core region 500 and a gas pocket region 600.
As shown in fig. 1 to 4, the air extraction method for the pouch battery provided in this embodiment includes the following steps: firstly, preparing a battery to be pumped after formation is finished, and carrying out primary flat pressing on the formed battery; secondly, performing one-pumping one-sealing on the battery subjected to the primary flat pressing; thirdly, performing secondary flat pressing on the battery after the first pumping is finished; and fourthly, performing secondary pumping and secondary sealing on the battery subjected to secondary flat pressing, and entering the next working procedure.
In the specific process, the first pumping equipment 200 is adopted for the first pumping seal, the second pumping equipment 200 is adopted for the second pumping seal, and the first pumping equipment 200 and the second pumping equipment 200 can be in the same shell; the equipment 100 that flattens is all adopted to once concora crush and secondary concora crush, the equipment 100 that flattens can set up to one, through flattening equipment 100 carry on after concora crush with the battery transmit to the casing in, carry out one through one and take out air exhaust equipment 200 and take out one to form the sealed bag body with laminate polymer battery, carry the battery after the sealing again to flattening equipment 100 and carry out the secondary concora crush, pass back the battery to the casing in after the concora crush, carry out two and take out two and seal, thereby accomplish laminate polymer battery's the process of bleeding.
In addition, the equipment 100 that flattens also can set up to two, one take out air exhaust equipment 200 and two take out air exhaust equipment 200 also set up to two, two equipment 100 that flatten and one take out air exhaust equipment 200 and two take out the air and set up at interval respectively, the centre carries out transmission connection through transmission device, after the equipment 100 that flattens of primary concora crush finishes, carry to one through transmission device and take out one and seal to air exhaust equipment 200, carry the equipment 100 that flattens of only secondary concora crush with the battery after one takes out, carry out two with the battery after the secondary concora crush finishes and take out two and seal at last, accomplish laminate polymer battery's the process of bleeding, the above-mentioned process is fit for big batch, assembly line operation, can be better raises the efficiency.
The air extraction method for the soft package battery provided by the embodiment comprises the following steps: firstly, preparing a battery to be pumped after formation is finished, and carrying out primary flat pressing on the formed battery; secondly, performing one-pumping one-sealing on the battery subjected to the primary flat pressing; thirdly, performing secondary flat pressing on the battery after the first pumping is finished; fourthly, performing secondary pumping and secondary sealing on the battery subjected to secondary flat pressing, and entering the next procedure; the method has the advantages that a one-time flat pressing mode is used before air exhaust of the battery is finished after formation, certain external force is applied to the battery, and the phenomena that the thickness difference of the battery is influenced and the air exhaust is not clean due to deformation of the pole pieces or air bubbles between the pole pieces caused by expansion of the pole pieces in the air exhaust process of the positive pole piece and the negative pole piece can be reduced; the technical problems of poor battery appearance after air extraction, influence on unqualified battery hardness after air extraction, influence on electrical performance of the battery, increase in manufacturing cost and reduction in manufacturing efficiency of the battery in the prior art are solved; after the one-time flat pressing is completed, the air exhaust process is performed again, the gas and the redundant electrolyte in the battery core can be removed to the maximum extent, the hardness and the flatness of the battery are guaranteed to the maximum extent, and the process for manufacturing the battery is more complete.
On the basis of the above embodiment, further, the first step of the air extracting method for the pouch battery provided by this embodiment includes the following steps: step 101, detecting the thickness of the formed battery, and setting the limiting thickness of the flat pressing equipment 100 according to the thickness of the battery; and 102, conveying the formed battery to a flat pressing part of the flat pressing equipment 100 for primary flat pressing.
Further, the range of limiting thickness of the flattening apparatus 100 is: the thickness of the formed battery is +/-0.2 mm.
Because each type of soft package battery has a specific thickness range, the limiting thickness of the flat pressing of the flattening equipment 100 is set as a specific finger, so that the flattening equipment 100 can discharge gas and redundant electrolyte in the battery cell out of the pole pieces of the battery cell in the first step, and a pumping effect is increased; therefore, when secondary flat pressing is carried out, the gas and the redundant electrolyte in the battery can be fully and completely extruded out, and the hardness of the battery is ensured.
Further, the second step comprises the following steps: step 201, after the primary flattening is finished, the battery is transmitted to an air pumping device 200; step 202, performing primary vacuum pumping on the battery subjected to primary flat pressing, and performing primary sealing along one end, far away from the battery core, of the battery.
The battery cell is placed at a position on one side of the interior of the battery pack, and the other side is an air bag area 600 for discharging gas and flowing out excessive electrolyte, so that the battery pack can be firstly in a sealed environment after being sealed in a sealing area 300.
In addition, the steps of top sealing and side sealing are completely carried out on the battery pack before sealing, and only one end of the battery pack is opened.
Further, a suction apparatus 200 is provided inside with rollers to discharge the gas inside the battery through the rollers before a suction.
Wherein, the gyro wheel can be provided with a plurality ofly, and a plurality of gyro wheels carry out the process of drawing air and extrusion in step along the surface of battery package, and the in-process that can draw air is better discharges the inside unnecessary gas of battery.
Further, the third step comprises the following steps: step 301, adjusting the limiting thickness of the flattening equipment 100; step 302, the battery after one-pack-drawing is finished is transmitted to the flattening device 100 for secondary flattening, so as to limit the flatness of the battery.
Wherein, the spacing thickness of equipment 100 that flattens this moment is less than laminate battery's thickness to equipment 100 that flattens that can the secondary concora crush gets rid of the inside gas of electric core and unnecessary electrolyte, the assurance battery hardness and the battery roughness of maximize.
Further, the flattening apparatus 100 is either a platen press or a roll press.
Specifically, the flat press adopts a hydraulic press, which is a machine for processing products such as metal, plastic, rubber, wood, powder and the like by using hydrostatic pressure, and is used for a pressing process and a press forming process.
The roller press is designed according to the grinding principle of a material bed, and is mainly characterized in that: high pressure, full speed, full material and material bed crushing. The roller press consists of two extrusion rollers which rotate synchronously in opposite directions, one is a fixed roller, the other is a movable roller, materials are fed from the upper parts of the two rollers and are continuously brought between the rollers by the extrusion rollers, and the grindability of the materials is improved.
As shown in fig. 4, further, step four includes the following steps: step 401, transferring the battery after the secondary flat pressing to two air pumping devices 200; step 402, setting two sealing regions 400 along the edges of the battery cells of the battery, so as to divide the battery into a battery core region 500 and an air bag region 600 through the two sealing regions 400; step 403, cutting the air bag region 600, and simultaneously performing air suction and packaging at the position of the second packaging region 400 to limit the air tightness of the electric core region 500; step 404, the two sealed batteries are transmitted to the next process.
During the second sealing, the air bag is firstly punctured by a hand hay cutter, and meanwhile, the air bag is vacuumized, so that the gas and a small part of electrolyte in the air bag can be pumped out. Then packaging the two-seal end socket in a two-seal area 400, ensuring the air tightness of the battery cell, and finally cutting off an air bag of the packaged battery to basically form a soft package battery; the second sealing is the last sealing process of the soft package battery.
Further, the two sealing regions 400 set in step 402 are formed by placing the battery after the secondary flattening is finished in the groove 201 of the two evacuation apparatus 200, and forming the two sealing regions 400 along the edge of the groove 201.
Further, a plurality of clamps for fixing the battery are provided in the groove 201.
The number of the clamps can be two, four, six, etc., and preferably, the number of the clamps is four.
Specifically, the battery is pre-fixed through four sealing heads, the sealing heads are arranged at a certain temperature, the sealing heads are pressed on an aluminum plastic film outside the battery during folding, and PP layers of the aluminum plastic film are bonded together through melting.
In the air extraction method for the soft package battery provided by this embodiment, a primary flat pressing process is performed before one air extraction, specifically, the primary flat pressing is performed through the limit thickness of the flat pressing device 100 for the primary flat pressing, and a certain external force is applied to the battery, and the primary flat pressing (rolling) can reduce the phenomena that the deformation of the pole pieces or the influence of bubbles between the pole pieces on the thickness difference of the battery and the unclean air extraction are caused due to the expansion of the pole pieces during the air extraction process of the positive and negative pole pieces; and finally, the battery is subjected to air extraction through the steps of first pumping and first sealing, secondary flat pressing and second pumping and second sealing, so that gas and redundant electrolyte in the battery core can be removed to the maximum extent, and the hardness and the flatness of the battery are guaranteed to the maximum extent.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. An air extraction method of a soft package battery is characterized by comprising the following steps:
firstly, preparing a battery to be pumped after formation is finished, and carrying out primary flat pressing on the formed battery;
secondly, performing one-pumping one-sealing on the battery subjected to the primary flat pressing;
thirdly, performing secondary flat pressing on the battery after the first pumping is finished;
fourthly, performing secondary pumping and secondary sealing on the battery subjected to secondary flat pressing, and entering the next procedure;
the second step comprises the following steps:
step 201, after primary flattening is finished, the battery is transmitted to an air pumping device;
step 202, performing primary vacuum pumping on the battery subjected to primary flat pressing, and performing primary sealing along one end of the battery, which is far away from the battery core;
the fourth step comprises the following steps:
step 401, transferring the battery after the secondary flat pressing is finished to two air pumping devices;
step 402, setting two sealing areas along the edge of a battery cell of the battery so as to divide the battery into a battery cell area and an air bag area through the two sealing areas;
step 403, cutting the air bag region, and simultaneously performing air suction and packaging at the position of the two sealing regions to limit the air tightness of the electric core region;
step 404, the two sealed batteries are transmitted to the next process.
2. The air exhausting method of the soft package battery according to claim 1, wherein the step one comprises the following steps:
step 101, detecting the thickness of the formed battery, and setting the limiting thickness of the flat pressing equipment according to the thickness of the battery;
and 102, conveying the formed battery to a flat pressing part of a flat pressing device for primary flat pressing.
3. The air exhausting method of the soft package battery according to claim 2, wherein the limiting thickness range of the flattening device is as follows: the thickness of the formed battery is +/-0.2 mm.
4. The method for exhausting the soft package battery according to claim 1, wherein the inside of the exhausting device is provided with a roller to exhaust the gas inside the battery before exhausting.
5. The air exhausting method of the soft package battery according to claim 1, wherein the step three comprises the following steps:
301, adjusting the limiting thickness of the flattening equipment;
and 302, conveying the battery after the one-pumping and one-sealing operation to a flattening device, and performing secondary flattening to limit the flatness of the battery.
6. The air exhausting method of the soft package battery according to claim 5, wherein the flattening device is any one of a flat press machine and a roller press machine.
7. The method for exhausting the soft package battery according to claim 1, wherein the secondary sealing area in step 402 is formed along the edge of a groove by placing the battery after the secondary flat pressing in the groove of a secondary exhausting device.
8. The air exhausting method of the soft package battery according to claim 7, wherein a plurality of clamps for fixing the battery are arranged in the groove.
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| CN110048168B (en) * | 2019-04-19 | 2022-04-05 | 浙江锋锂新能源科技有限公司 | Cold pressing process of mixed solid-liquid electrolyte lithium storage battery |
| CN112366357A (en) * | 2020-07-31 | 2021-02-12 | 万向一二三股份公司 | Rolling degassing method for soft package lithium battery |
| CN112072181B (en) * | 2020-08-20 | 2022-05-13 | 湖南立方新能源科技有限责任公司 | Air extraction secondary sealing method for soft-packaged battery cell |
| CN112259936A (en) * | 2020-08-28 | 2021-01-22 | 苏州新中能源科技有限公司 | Liquid supplementing and repairing method for soft package lithium ion battery |
| CN115000522A (en) * | 2022-04-28 | 2022-09-02 | 岳阳耀宁新能源科技有限公司 | Formation method for reducing gas generated by soft package |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150062849A (en) * | 2013-11-29 | 2015-06-08 | 주식회사 엘지화학 | Method For Manufacturing Polymer Battery |
| CN105453328A (en) * | 2013-09-30 | 2016-03-30 | 株式会社Lg化学 | Method of manufacturing secondary battery |
| CN205264763U (en) * | 2015-11-30 | 2016-05-25 | 金川集团股份有限公司 | Aluminum -plastic packaging film lithium ion battery |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104037457B (en) * | 2014-06-25 | 2016-08-24 | 东莞市索菲亚电池科技有限公司 | A kind of method for packing of polymer battery |
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2018
- 2018-01-31 CN CN201810097017.1A patent/CN108172921B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105453328A (en) * | 2013-09-30 | 2016-03-30 | 株式会社Lg化学 | Method of manufacturing secondary battery |
| KR20150062849A (en) * | 2013-11-29 | 2015-06-08 | 주식회사 엘지화학 | Method For Manufacturing Polymer Battery |
| CN205264763U (en) * | 2015-11-30 | 2016-05-25 | 金川集团股份有限公司 | Aluminum -plastic packaging film lithium ion battery |
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