CN110085797A - A kind of polymer Li-ion battery disjunctor tab and production and preparation method thereof - Google Patents
A kind of polymer Li-ion battery disjunctor tab and production and preparation method thereof Download PDFInfo
- Publication number
- CN110085797A CN110085797A CN201910432769.3A CN201910432769A CN110085797A CN 110085797 A CN110085797 A CN 110085797A CN 201910432769 A CN201910432769 A CN 201910432769A CN 110085797 A CN110085797 A CN 110085797A
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- China
- Prior art keywords
- tab
- metal band
- polar ear
- adhesive belt
- disjunctor
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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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
-
- 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 & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Secondary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention discloses a kind of polymer Li-ion battery disjunctor tabs, including connecting cathode metal band and negative metal band by polar ear adhesive belt, by mutually coinciding the upper polar ear adhesive belt for stacking fusion and lower polar ear adhesive belt forms, cathode metal band and negative metal band pass through hot melt and are fixed between polar ear adhesive belt and lower polar ear adhesive belt polar ear adhesive belt；The invention discloses the preparation method of disjunctor tab, hot pressing obtains disjunctor tab after locating slot is opened up on hollow fixture frame and is sequentially placed lower polar ear adhesive belt, two kinds of metal tapes and upper polar ear adhesive belt；The invention discloses the application method of disjunctor tab, by the cathode metal band of disjunctor tab, negative metal band it is Chong Die with the positive welding position of naked battery core, cathode welding bit-by-bit after weld.Disjunctor tab of the invention accurately secures the centers of tab positive electrode and negative electrode away from improving the precision of tab sealing station；Preparation method of the invention is suitable for batch production in fact；Application method of the invention improves the precision of disjunctor tab sealing station.
Description
Technical field
The invention belongs to polymer Li-ion battery technical fields, and in particular to a kind of polymer Li-ion battery disjunctor pole
Ear and production and preparation method thereof.
Background technique
Lithium ion battery has many advantages, such as high working voltage, high-energy density, has extended cycle life, non-environmental-pollution, in electricity
The fields such as power driven tools, model toy, mobile electronic device, electric vehicle are widely used.Polymer Li-ion battery
Core is made of positive and negative electrode, electrolyte, diaphragm, composite membrane, tab.Positive and negative electrode is separated layer by layer by diaphragm, by winding or
The mode of stacking is assembled into naked battery core.Positive and negative tab head is respectively welded in naked battery core pole piece foil area, intermediate position and multiple
Close film and carry out the sealing of battery top together, it is external then for the connection with electrical appliance.Since tab is successively aligned with naked battery core
Welding, welding positioning fluctuation and the fluctuation of naked battery core welding position can be accumulate in the middle part of tab and external.Tab sealing station wave
It moves larger.
Polymer lithium ion battery pole ear generallys use band-like aluminium, copper or cupro-nickel material, is combined into gel vertical
Intersection construction.In cell fabrication processes, positive and negative tab successively connects weldering with naked battery core positive and negative anodes collector by welding tooling.Pole
Ear sealing station precision relies primarily on welding tooling to guarantee, show as between two tabs center away from.Be separately separated due to tab and
It welds twice, tab center is universal larger away from fluctuation in industry at this stage, is not less than ± 0.5mm.
Polymer Li-ion battery sealing is all made of metal hot plate packaged type, and the fixed position of hot plate carries out slot treatment.
Hot plate slotting position need to be corresponding with tab sealing station in encapsulation process.Tab center is excessive away from fluctuating after such as welding, and can lead
Pyrogenicity board slot position and tab position not correspondence problem, generate leakage and poor sealing bad product.
Summary of the invention
Technical problem to be solved by the present invention lies in view of the above shortcomings of the prior art, provide a kind of polymer lithium
Ion battery disjunctor tab.The disjunctor tab uses positive and negative anodes conjoined structure, passes through fixed cathode metal band and negative metal band
Center away to accurately secure the centers of tab positive electrode and negative electrode away from optimizing tab center by passive type away from control mode
For intuitive active control, the positive electrode and negative electrode for avoiding tab are respectively welded tab center caused by tooling away from fluctuation, improve
The precision of tab sealing station.
In order to solve the above technical problems, the technical solution adopted by the present invention is that: a kind of polymer Li-ion battery disjunctor pole
Ear, which is characterized in that including cathode metal band and negative metal band, cathode metal band (passes through tab between negative metal band
Adhesive tape connection, the polar ear adhesive belt is by mutually coinciding the upper polar ear adhesive belt for stacking fusion and lower polar ear adhesive belt forms, the anode
Metal tape and negative metal band pass through hot melt and are fixed between polar ear adhesive belt and lower polar ear adhesive belt.
Disjunctor tab of the invention use positive and negative anodes conjoined structure, by mutually coincide stack fusion upper polar ear adhesive belt and
The polar ear adhesive belt of lower polar ear adhesive belt composition fixes the position of the cathode metal band of disjunctor tab and negative metal band, passes through fixation
The center of cathode metal band and negative metal band is away to accurately secure the centers of tab positive electrode and negative electrode away from avoiding tab
Positive electrode and negative electrode tab center caused by tooling is respectively welded away from fluctuation, the precision of tab sealing station is improved, to mention
The high yield rate of polymer Li-ion battery, and the primary encapsulation of special-shaped tab is realized, expand the model of disjunctor tab
It encloses.
Above-mentioned a kind of polymer Li-ion battery disjunctor tab, which is characterized in that the cathode metal band and cathode gold
Belong to and being not directly contacted between band, is only connected by polar ear adhesive belt.Be not directly contacted between cathode metal band and negative metal band and
It only ensure that the normal use of disjunctor tab by polar ear adhesive belt connection, and the center of tab positive electrode and negative electrode be accurately determined
Away from method is simple, convenient and safe.
Above-mentioned a kind of polymer Li-ion battery disjunctor tab, which is characterized in that the cathode metal band and cathode gold
Belonging to the angle formed between band is 0~30 °.The angular range avoids directly touching between cathode metal band and negative metal band
Touching is the effective range of disjunctor tab practical application.
Above-mentioned a kind of polymer Li-ion battery disjunctor tab, which is characterized in that the cathode metal band and gel
The angle between angle and negative metal band and polar ear adhesive belt between band is 60 °~120 °.Above-mentioned angular range is to connect
The effective range of body tab practical application, is advantageously implemented the application of special-shaped tab, expands the application range of disjunctor tab.
Above-mentioned a kind of polymer Li-ion battery disjunctor tab, which is characterized in that the cathode metal band and gel
Spacing with crossover location central point apart from negative metal band and polar ear adhesive belt crossover location central point be battery core center away from.From
Polymer Li-ion battery manufactures for angle, determines cathode metal band and polar ear adhesive belt crossover location central point apart from cathode gold
Belong to band and polar ear adhesive belt crossover location central point spacing be battery core center away from, make fixed disjunctor tab center away from and battery core
Center away from matching, be conducive to accurately determine disjunctor tab in cathode metal band, negative metal band and battery core welding position, mention
The high precision of disjunctor tab sealing station.
In addition, the present invention also provides a kind of preparation methods of polymer Li-ion battery disjunctor tab, which is characterized in that
Method includes the following steps:
Step 1: opening up cathode metal band locating slot and negative metal on one group of parallel frame respectively in hollow fixture
Band locating slot, opens up polar ear adhesive belt locating slot on another group of parallel frame in rectangular disjunctor tab is framed, obtains disjunctor pole
Ear mold；The cathode metal is with locating slot and negative metal with the angle and cathode metal band and cathode formed between locating slot
The angle formed between metal tape is equal, the cathode metal with the angle that is formed between locating slot and polar ear adhesive belt locating slot with
Angle between cathode metal band and polar ear adhesive belt is equal, shape between the negative metal band locating slot and polar ear adhesive belt locating slot
At angle it is equal with the angle between negative metal band and polar ear adhesive belt；
Step 2: disjunctor tab mold obtained in step 1 is placed in hot press, lower polar ear adhesive belt is placed in
In the framed polar ear adhesive belt locating slot of disjunctor tab, cathode metal band is then placed in cathode metal band locating slot respectively, is incited somebody to action
Negative metal band is placed in negative metal band locating slot, then upper polar ear adhesive belt is placed in polar ear adhesive belt locating slot and is covered in
On cathode metal band and negative metal band；
Step 3: the upper and lower plate of hot press is closed by the hollow position of disjunctor tab mold, in disjunctor tab mold
Upper polar ear adhesive belt and lower polar ear adhesive belt it is heated merge, to be fixed with cathode metal band, negative metal with adhesion, polymerize
Object lithium ion battery disjunctor tab.
The present invention prepares disjunctor tab using pressure sintering, is first transformed production disjunctor tab mold to hollow fixture, so
Afterwards successively disjunctor tab is respectively formed to be partially placed into disjunctor tab mold and carry out hot pressing, passes through the locating slot of disjunctor tab mold
Gap digit is conducted heat to polar ear adhesive belt, so that upper polar ear adhesive belt and lower gel other than in disjunctor tab mold frame
The heated fusion of band obtains polymer Li-ion battery disjunctor tab to fix with cathode metal band, negative metal band adhesion.
Preparation method of the invention designs and produces disjunctor tab mold according to the structure of disjunctor tab, thus in disjunctor tab manufacturing process
In can be completed tab positive electrode and negative electrode center away from control and sizing, eliminate tab center away from error accumulation effect, significantly
Improve tab positive electrode and negative electrode center away from precision, while simplifying the positioning method in tab and naked battery core welding process,
Reduce the difficulty of welding positioning；In addition, the present invention can be different according to disjunctor tab structure, design different disjunctor tab moulds
Tool, flexibly and easily, and is suitable for the batch production for carrying out disjunctor tab, has great popularization value.
In addition, the present invention also provides a kind of application methods of polymer Li-ion battery disjunctor tab, which is characterized in that
The method includes the steps of:
Step 1: the anode of the lower end of the cathode metal band in polymer Li-ion battery disjunctor tab and naked battery core is welded
It connects position and is aligned and formed positive overlapping region, the lower end of negative metal band and the cathode welding position of naked battery core are aligned
And form cathode overlapping region；
Step 2: being welded simultaneously to the positive overlapping region and cathode overlapping region that are formed in step 1.
Away from fixation, when use, only need to be by cathode metal in disjunctor tab at the center of the positive electrode and negative electrode of disjunctor tab of the present invention
The lower end of band, that the lower end of negative metal band carries out contraposition with the positive welding position of naked battery core, cathode welding position respectively is Chong Die same again
Shi Jinhang welding, contraposition is convenient, simple and easy, avoids error caused by tab positive and negative anodes and the fluctuation of naked battery core welding position,
Further increase the precision of tab sealing station, thus avoid in tab encapsulation process hot plate slot position with tab position is not corresponding asks
Topic, has prevented the appearance of the phenomenon of leakage and bad bad product of polymer Li-ion battery.
Compared with the prior art, the present invention has the following advantages:
1, disjunctor tab of the invention uses positive and negative anodes conjoined structure, passes through fixed cathode metal band and negative metal band
Center is away to accurately secure the centers of tab positive electrode and negative electrode away from tab center to be optimized for away from control mode by passive type
Intuitive active control, the positive electrode and negative electrode for avoiding tab are respectively welded tab center caused by tooling and improve away from fluctuation
The precision of tab sealing station.
2, the present invention designs and produces disjunctor tab mold according to the structure of disjunctor tab, thus in the production of disjunctor tab
Can be completed in journey tab positive electrode and negative electrode center away from control and sizing, compared to conventional center away from control mode, eliminate pole
Ear center away from error accumulation effect, substantially increase tab positive electrode and negative electrode center away from precision, can by disjunctor tab anode with
Cathode center is away from control within ± 0.3mm.
3, the cathode metal band of the invention by opening up corresponding polar ear adhesive belt locating slot, disjunctor tab in disjunctor tab mold
Locating slot and negative metal band locating slot, realize the control of the structure to disjunctor tab, so as to different according to disjunctor tab
Structure, design different disjunctor tab molds, it is simple and easy, flexibly and easily, and be suitable for the batch production for carrying out disjunctor tab,
It is suitable for promoting.
4, preparation method of the invention simplifies the positioning method in tab and naked battery core welding process, reduces subsequent weldering
Connect the difficulty of positioning.
5, the present invention will weld simultaneously after disjunctor tab and the contraposition of naked battery core, avoids tab positive and negative anodes and naked battery core is welded
Error caused by positional fluctuation, further increases the precision of tab sealing station, to avoid hot plate slot in tab encapsulation process
Position and tab position not correspondence problem, have prevented the appearance of the phenomenon of leakage and bad bad product of polymer Li-ion battery.
Technical solution of the present invention is described in further detail below by drawings and examples.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of disjunctor tab of the present invention.
Fig. 2 is the structural schematic diagram of disjunctor tab mold of the present invention.
Fig. 3 is that disjunctor tab of the present invention and naked battery core align schematic diagram.
Description of symbols:
1-cathode metal band；2-negative metal bands；3-upper polar ear adhesive belts；
4-lower polar ear adhesive belts；5-cathode metals band locating slot；6-negative metals band locating slot；
7-polar ear adhesive belt locating slots；8-naked battery cores；8-1-anode welding position；
8-2-cathode welding position.
Specific embodiment
Embodiment 1
As shown in Figure 1, the polymer Li-ion battery disjunctor tab of the present embodiment includes cathode metal band 1 and negative metal
Band 2 is connected between cathode metal band 1 and negative metal band 2 by polar ear adhesive belt, the cathode metal band 1 and negative metal band 2
Between the angle that is formed be 0~30 °, be not directly contacted between cathode metal band 1 and negative metal band 2, only pass through polar ear adhesive belt
Connection, angle, negative metal band 2 between the cathode metal band 1 and polar ear adhesive belt and the angle between polar ear adhesive belt are
60 °~120 °, the cathode metal band 1 is handed over polar ear adhesive belt crossover location central point apart from negative metal band 2 and polar ear adhesive belt
The spacing for pitching place-centric point is the center of battery core away from the polar ear adhesive belt stacks the upper polar ear adhesive belt 3 of fusion by mutually coinciding
It is formed with lower polar ear adhesive belt 4, the cathode metal band 1 and negative metal band 2 are fixed on polar ear adhesive belt 3 under by hot melt
Between polar ear adhesive belt 4.
Embodiment 2
The preparation method of the polymer Li-ion battery disjunctor tab of the present embodiment the following steps are included:
Step 1: opening up cathode metal band locating slot 5 and cathode gold on one group of parallel frame respectively in hollow fixture
Belong to band locating slot 6, opens up polar ear adhesive belt locating slot 7 on another group of parallel frame in rectangular disjunctor tab is framed, connected
Body tab mold, as shown in Figure 2；The cathode metal is with the angle formed between locating slot 6 with locating slot 5 and negative metal
0~30 °, the cathode metal is fixed with the angle, the negative metal band formed between locating slot 5 and polar ear adhesive belt locating slot 7
The angle formed between position slot 6 and polar ear adhesive belt locating slot 7 is 60 °~120 °；
Step 2: disjunctor tab mold obtained in step 1 is placed in hot press, lower polar ear adhesive belt 4 is placed in
In the framed polar ear adhesive belt locating slot 7 of disjunctor tab, cathode metal band 1 is then placed in cathode metal band locating slot 5 respectively
In, negative metal band 2 is placed in negative metal band locating slot 6, then upper polar ear adhesive belt 3 is placed in polar ear adhesive belt locating slot 7
In and be covered on cathode metal band 1 and negative metal band 2；
Step 3: the upper and lower plate of hot press is closed by the hollow position of disjunctor tab mold, in disjunctor tab mold
Upper polar ear adhesive belt 3 and lower polar ear adhesive belt 4 it is heated merge, to be fixed with cathode metal band 1,2 adhesion of negative metal band, obtain
Polymer Li-ion battery disjunctor tab.
Embodiment 3
The disjunctor tab of the present embodiment is comprised the steps of: in the application method of polymer Li-ion battery
Step 1: by the lower end 1-1 of the cathode metal band 1 in polymer Li-ion battery disjunctor tab and naked battery core 8
Positive welding position 8-1 is aligned and is formed positive overlapping region, by the cathode of the lower end 2-1 of negative metal band 2 and naked battery core 8
Welding position 8-2 is aligned and is formed cathode overlapping region, as shown in Figure 3；
Step 2: being welded simultaneously to the positive overlapping region and cathode overlapping region that are formed in step 1.
The above is only presently preferred embodiments of the present invention, is not intended to limit the invention in any way.It is all according to invention skill
Art any simple modification, change and equivalence change substantially to the above embodiments, still fall within technical solution of the present invention
Protection scope in.
Claims (7)
1. a kind of polymer Li-ion battery disjunctor tab, which is characterized in that including cathode metal band (1) and negative metal band
(2), it is connected between cathode metal band (1) and negative metal band (2) by polar ear adhesive belt, the polar ear adhesive belt is folded by mutually coinciding
The upper polar ear adhesive belt (3) and lower polar ear adhesive belt (4) composition of fusion are put, the cathode metal band (1) and negative metal band (2) are logical
Overheat blow is scheduled between polar ear adhesive belt (3) and lower polar ear adhesive belt (4).
2. a kind of polymer Li-ion battery disjunctor tab according to claim 1, which is characterized in that the cathode metal
It is not directly contacted between band (1) and negative metal band (2), is only connected by polar ear adhesive belt.
3. a kind of polymer Li-ion battery disjunctor tab according to claim 1, which is characterized in that the cathode metal
The angle formed between band (1) and negative metal band (2) is 0~30 °.
4. a kind of polymer Li-ion battery disjunctor tab according to claim 1, which is characterized in that the cathode metal
The angle between angle and negative metal band (2) and polar ear adhesive belt between band (1) and polar ear adhesive belt is 60 °~120 °.
5. a kind of polymer Li-ion battery disjunctor tab according to claim 1, which is characterized in that the cathode metal
Band (1) and spacing of the polar ear adhesive belt crossover location central point apart from negative metal band (2) and polar ear adhesive belt crossover location central point
For battery core center away from.
6. a kind of polymer Li-ion battery disjunctor prepared as described in any claim in 1~claim 5 of claim
The method of tab, which is characterized in that method includes the following steps:
Step 1: opening up cathode metal band locating slot (5) and negative metal on one group of parallel frame respectively in hollow fixture
Band locating slot (6), opens up polar ear adhesive belt locating slot (7) on another group of parallel frame in rectangular disjunctor tab is framed, obtains
Disjunctor tab mold；The cathode metal is with locating slot (5) and negative metal with the angle and anode formed between locating slot (6)
The angle formed between metal tape (1) and negative metal band (2) is equal, cathode metal band locating slot (5) and the polar ear adhesive belt
Angle between the angle formed between locating slot (7) and cathode metal band (1) and polar ear adhesive belt is equal, the negative metal band
Angle between locating slot (6) and polar ear adhesive belt locating slot (7) between the angle formed and negative metal band (2) and polar ear adhesive belt
It is equal；
Step 2: disjunctor tab mold obtained in step 1 is placed in hot press, by lower polar ear adhesive belt (4) company of being placed in
In the framed polar ear adhesive belt locating slot (7) of body tab, cathode metal band (1) is then placed in cathode metal band locating slot respectively
(5), negative metal band (2) is placed in negative metal band locating slot (6), then upper polar ear adhesive belt (3) is placed in polar ear adhesive belt
In locating slot (7) and it is covered on cathode metal band (1) and negative metal band (2)；
Step 3: the upper and lower plate of hot press is closed by the hollow position of disjunctor tab mold, it is upper in disjunctor tab mold
Polar ear adhesive belt (3) is heated with lower polar ear adhesive belt (4) and merges, thus fixed with cathode metal band (1), negative metal band (2) adhesion,
Obtain polymer Li-ion battery disjunctor tab.
7. a kind of polymer Li-ion battery disjunctor tab as described in any claim in 1~claim 5 of claim
Application method, which is characterized in that the method includes the steps of:
Step 1: by the lower end (1-1) of the cathode metal band (1) in polymer Li-ion battery disjunctor tab and naked battery core (8)
Positive welding position (8-1) aligned and formed positive overlapping region, by the lower end (2-1) of negative metal band (2) and naked electricity
The cathode welding position (8-2) of core (8) is aligned and forms cathode overlapping region；
Step 2: being welded simultaneously to the positive overlapping region and cathode overlapping region that are formed in step 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910432769.3A CN110085797B (en) | 2019-05-23 | 2019-05-23 | Polymer lithium ion battery connected tab and manufacturing and using methods thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910432769.3A CN110085797B (en) | 2019-05-23 | 2019-05-23 | Polymer lithium ion battery connected tab and manufacturing and using methods thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110085797A true CN110085797A (en) | 2019-08-02 |
| CN110085797B CN110085797B (en) | 2022-04-19 |
Family
ID=67421468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910432769.3A Active CN110085797B (en) | 2019-05-23 | 2019-05-23 | Polymer lithium ion battery connected tab and manufacturing and using methods thereof |
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| Country | Link |
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| CN (1) | CN110085797B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111509282A (en) * | 2020-03-25 | 2020-08-07 | 惠州亿纬创能电池有限公司 | Battery, battery core and top sealing process thereof |
| CN112768785A (en) * | 2020-12-31 | 2021-05-07 | 惠州市惠德瑞锂电科技股份有限公司 | High-speed top sealing method for soft package lithium metal battery |
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| CN105390657A (en) * | 2015-11-28 | 2016-03-09 | 西安瑟福能源科技有限公司 | Manufacturing method for micro soft package lithium ion battery |
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| EP0313405A1 (en) * | 1987-10-22 | 1989-04-26 | Eveready Battery Company, Inc. | Battery terminal fuse |
| CN2833899Y (en) * | 2005-08-26 | 2006-11-01 | 周基平 | Lithium ion cell pole pieces and core |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111509282A (en) * | 2020-03-25 | 2020-08-07 | 惠州亿纬创能电池有限公司 | Battery, battery core and top sealing process thereof |
| CN112768785A (en) * | 2020-12-31 | 2021-05-07 | 惠州市惠德瑞锂电科技股份有限公司 | High-speed top sealing method for soft package lithium metal battery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110085797B (en) | 2022-04-19 |
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