CN107565172A - A kind of lithium ion battery manufacture method - Google Patents
A kind of lithium ion battery manufacture method Download PDFInfo
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- CN107565172A CN107565172A CN201710970604.2A CN201710970604A CN107565172A CN 107565172 A CN107565172 A CN 107565172A CN 201710970604 A CN201710970604 A CN 201710970604A CN 107565172 A CN107565172 A CN 107565172A
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- gear
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- single battery
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention discloses a kind of lithium ion battery manufacture method, including：The affiliated positive pole sheet weight gear of positive plate is determined, it is by gently to being divided into 1 to N shelves again；According to default pole piece matched rule matching positive plate, negative plate；Single battery core is made in the positive/negative plate of barrier film, pairing, the positive plate for belonging to M positive pole sheet weight gears is correspondingly formed the M shelves single battery cores of same gear；Determine that battery needs the quantity of single battery core in parallel according to battery capacity demand, when N shelves be even gear, A shelves single battery core and N+1 A shelves single battery cores match for combo, and 1≤A≤N, A are positive integer, and A ＜ (N+1 A)；When N shelves are odd number shelves, B shelves single battery core matches for combo with N+1 B shelves single battery cores, and 1≤B≤N, B are positive integer, and B ＜ (N+1 B), (N+1)/2 grade single battery core is individually used for combo.The method can increase substantially the uniformity of cell capacity.
Description
Technical field
The present invention relates to lithium ion battery technical field, more particularly to a kind of lithium ion battery manufacture method.
Background technology
Lithium ion battery have voltage it is high, it is higher than energy, have extended cycle life, have a safety feature, memory-less effect, environmentally friendly nothing
The advantages that pollution, leading position is not only already taken up in portable type electronic product field, and recently in electric automobile and greatly
Type energy-storage battery field also all shows the development prospect to attract people's attention.
A large amount of single low capacity lithium batteries need to be carried out connection in series-parallel to reach great Rong by energy storage field with battery for electric automobile
Amount, high-tension power demand.The Capacity uniformity of battery pack depends on the uniformity of cell capacity.Wherein, lithium ion
Battery generally includes the single battery core of shell, two and more parallel, and the anode ear of all single battery cores is riveted on positive terminal company
In contact pin, the negative electrode lug of all single battery cores is riveted in negative terminal connection sheet.Single battery core is by least a piece of positive plate, barrier film
At least two panels negative plate is overlapped mutually lamination preparation, is separated between every positive plate and every negative plate with barrier film.
However, at present during battery combo, the capacity scattered error of single battery core is big, Capacity uniformity is poor, single battery core
Utilization rate it is low, cause the reliability of battery pack to reduce.
Therefore, the uniformity of cell capacity how is improved when making lithium ion battery, is those skilled in the art
The technical issues that need to address at present.
The content of the invention
In view of this, it is an object of the invention to provide a kind of lithium ion battery manufacture method, lithium electronics electricity can made
The uniformity of cell capacity is improved during pond.
To achieve the above object, the present invention provides following technical scheme：
A kind of lithium ion battery manufacture method, including：
Determine the positive pole sheet weight gear belonging to positive plate, wherein, the positive pole sheet weight gear by gently to be divided into again 1 to
N shelves, N are the positive integer more than 2；
The positive plate, negative plate are matched according to default pole piece matched rule；
Single battery core is made in barrier film, the positive plate of pairing and the negative plate, wherein, belong to M positive plate weights
The positive plate of amount gear is correspondingly formed the M shelves single battery cores of same gear, 1≤M≤N and M is positive integer；
Determine that battery needs the quantity of single battery core in parallel according to battery capacity demand, wherein, when the N shelves are even gear
When, A shelves single battery core and N+1-A shelves single battery cores match for combo, and 1≤A≤N, A are positive integer, and A ＜ (N
+1-A)；When the N shelves are odd number shelves, B shelves single battery core matches for combo with N+1-B shelves single battery cores, and 1
≤ B≤N, B are positive integer, B ＜ (N+1-B), and (N+1)/2 grade single battery core is individually used for combo.
Preferably, the N shelves are odd number shelves.
Preferably, the N shelves are 3 grades.
Preferably, it is described also to include before according to the default pole piece matched rule matching positive plate, negative plate：
Determine the negative pole sheet weight gear belonging to the negative plate, wherein, the negative pole sheet weight gear by gently to weight according to
Secondary is the first negative pole sheet weight gear, the second negative pole sheet weight gear and the 3rd negative pole sheet weight gear, each negative plate
The negative plate minimum capacity of weight gear is more than the positive plate maximum capacity of the identical positive pole sheet weight gear；
It is described to include according to the default pole piece matched rule matching positive plate, negative plate：
The negative plate of gear identical with the positive plate is determined whether, if so, the positive/negative plate phase of identical gear
Matching.
Preferably, it is described determine whether gear identical with the positive plate the negative plate when, if not with it is described
The negative plate of the identical gear of positive plate, determine whether the negative plate of a gear higher than the positive plate；It is described to sentence
It is disconnected when whether having the negative plate of a gear higher than the positive plate, if so, the positive plate and a high gear is described negative
Pole piece matches, otherwise, it is determined whether there is the negative plate of two gear higher than the positive plate；It is described to determine whether than institute
When stating the negative plate of high two gear of positive plate, if so, the negative plate of the positive plate and high two gear matches.
Preferably, the weight range of each positive pole sheet weight gear is identical, the weight of each negative pole sheet weight gear
Scope is identical.
In lithium ion battery manufacture method provided by the invention, monomer electricity is correspondingly made by positive plate stepping by weight
Core, carry out pairing according still further to the gear of single battery core and form single battery core group, the Capacity uniformity between each single battery core group compared with
Height, assembled group with single battery core and make a battery, can balanced each battery capacity, substantially reduce each cell in batch battery
Capacity scattered error and extreme difference, the utilization rate of monocell, can increase substantially monomer when improving battery assembling under the conditions of mechanical automation
Battery with two side terminals, ensure monomer capacity, meanwhile, the manufacture method is simple to operation, can not change pole piece design size
And the production of more specification high capacity cells is relatively easily realized on the premise of production technology.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 is the flow chart of manufacture method provided by the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
The core of the present invention is to provide a kind of lithium ion battery manufacture method, can be improved when making lithium ion battery single
The uniformity of body battery capacity.
Fig. 1 is refer to, Fig. 1 is the flow chart of manufacture method provided by the present invention.
In a kind of specific embodiment of lithium battery manufacture method provided by the present invention, including:
Step S1：The positive pole sheet weight gear belonging to positive plate is determined, wherein, positive pole sheet weight gear is by gently to being divided into again
1 to N shelves, and N is the positive integer more than 2.
Positive plate determines the capacity of battery, and the capacity of positive plate is proportionate with weight, and positive plate is entered according to weight
Row stepping, i.e., the corresponding stepping realized to positive plate capacity, and stepping is carried out to the weight of positive plate, it is easy to actual battery to make
The progress of work.
Step S2：According to default pole piece matched rule matching positive plate, negative plate.
Step S3：Single battery core is made in barrier film, the positive plate of pairing and negative plate, wherein, belong to M positive pole sheet weights
The positive plate of gear is correspondingly formed the M shelves single battery cores of same gear, and 1≤M≤N and M are positive integer.
Wherein, monomer electricity is made by single battery core pole piece quantitative requirement alternating lamination with paired positive and negative plate, barrier film
Core.The gear of single battery core is corresponding with the gear of the positive plate in the single battery core, and e.g., the first positive pole sheet weight gear is just
Pole piece is correspondingly formed first grade of single battery core, and the positive plate of the 5th positive pole sheet weight gear is correspondingly formed fifth speed single battery core,
So that the capacity of single battery core is corresponding with its gear.
Step S4：Determine that battery needs the quantity of single battery core in parallel according to battery capacity demand, wherein, when N shelves are even number
During shelves, A shelves single battery core and N+1-A shelves single battery cores match for combo, and 1≤A≤N, A are positive integer, and A ＜
(N+1-A)；When N shelves are odd number shelves, B shelves single battery core matches for combo with N+1-B shelves single battery cores, 1≤B
≤ N, B are positive integer, B ＜ (N+1-B), and (N+1)/2 grade single battery core is individually used for combo.
When N is even number, by taking N=4 as an example, single battery core is divided into first grade of single battery core, second gear single battery core, the 3rd
Shelves single battery core and fourth speed single battery core.Wherein, first grade of single battery core matches with fourth speed single battery core, second gear
Single battery core matches with third gear single battery core.
When N is odd number, by taking N=5 as an example, single battery core is divided into first grade of single battery core, second gear single battery core, the 3rd
Shelves single battery core, fourth speed single battery core and fifth speed single battery core.Wherein, first grade of single battery core and fifth speed single battery core
Match, second gear single battery core with fourth speed single battery core matches, fifth speed single battery core is individually used for combo.
In the present embodiment, single battery core is correspondingly made by positive plate stepping by weight, according still further to the gear of single battery core
Carry out pairing and form single battery core group, the Capacity uniformity between each single battery core group is higher, is assembled and group made with single battery core
Battery, can balanced each battery capacity, substantially reduce the capacity scattered error and extreme difference of each cell in batch battery, improve battery
The utilization rate of monocell during assembling, the uniformity of cell can be increased substantially under the conditions of mechanical automation, ensure that monomer holds
Amount, meanwhile, the manufacture method is simple to operation, can be on the premise of pole piece design size and production technology is not changed relatively easily
Realize the production of more specification high capacity cells.
Specifically, the gear number N shelves of positive pole sheet weight gear can be further arranged to odd number shelves, due to (N therein
+ 1)/2 grade single battery core is that can be individually used for combo in the single battery core of middle gear, it is possible to increase combo it is flexible
Property.
More specifically, the gear number N shelves of positive pole sheet weight gear can be further arranged to 3 grades, in order to practical operation
Progress.Wherein, positive pole sheet weight gear is by gently to RNTO A1, A2 and A3.
Before positive plate, negative plate is matched according to default pole piece matched rule, it can also include：Determine belonging to negative plate
Negative pole sheet weight gear.Wherein, negative pole sheet weight gear is by gently to being followed successively by the first negative pole sheet weight gear, the second negative pole again
Sheet weight gear and the 3rd negative pole sheet weight gear, the negative plate minimum capacity of each negative pole sheet weight gear are more than identical positive pole
The positive plate maximum capacity of sheet weight gear, specifically can be by negative pole sheet weight gear by gently to RNTO B1, B2 and B3.
Wherein, further to reduce processing and manufacturing difficulty, the weight range of each positive pole sheet weight gear can be each negative with identical
The weight range of pole piece weight gear can be with identical.
It can specifically include according to default pole piece matched rule matching positive plate, negative plate：Determine whether and positive plate
The negative plate of identical gear, if so, the positive/negative plate of identical gear matches, i.e. belong to A1 positive plate and belong to the negative of B1
Pole piece matches, and the positive plate for belonging to A2 matches with the negative plate for belonging to B2, belongs to A3 positive plate and belongs to B3 negative pole
Piece matches.The positive/negative plate of identical gear, which matches, can avoid that the capacity of negative plate is caused to waste.
Further, when determining whether the negative plate of gear identical with positive plate, if not identical with positive plate
The negative plate of gear, it can be determined that whether have the negative plate of a gear higher than positive plate.Determine whether it is higher than positive plate by one
During the negative plate of gear, if there is the negative plate of a gear higher than the positive plate, the negative plate of positive plate and a high gear
Match, otherwise, it is determined whether there is the negative plate of two gear higher than positive plate.Determining whether two gear higher than positive plate
During negative plate, if there is the negative plate of two gear higher than the positive plate, the negative plate of positive plate and high two gear matches,
So as to while maximization avoids negative plate waste of capacity, ensure the applicability of the manufacture method.
Table 1 is for details, reference can be made to, for the positive plate for belonging to A1, Optimum Matching belongs to B1 negative plate, less preferred
B2 negative plate is associated with, more secondary selection matching belongs to B3 negative plate；For the positive plate for belonging to A2, Optimum Matching category
It is less preferred to match the negative plate for belonging to B3 in B2 negative plate；For the positive plate for belonging to A3, matching belongs to B3 negative pole
Piece.
Table 1：Pole piece matched rule (each grid represents the pairing of one group of positive and negative plate)
Single battery core is made by single battery core pole piece quantitative requirement alternating lamination with paired positive and negative plate, barrier film, specifically
Ground, the single battery core that the most light shelves A1 positive plates of use make can be named as C1, the monomer made using middle gear A2 positive plates
Battery core can be named as C2, and the single battery core that the most heavy shelves A3 positive plates of use make can be named as C3.
Determine that battery needs single battery core quantity in parallel according to battery capacity, refer to table 2, single battery core C1 and single battery core
C3 matches can be individually used for combo for combo, single battery core C2, and a pair be made into by single battery core C1 and C3 are equal to
Two single battery core C2, the anode ear of all single battery cores after combo are riveted in positive terminal connection sheet, all single battery cores
Negative electrode lug be riveted in negative terminal connection sheet.
| C1-C3 | C2 |
Table 2：Single battery core pairing rules
Illustrate the manufacture method in the present embodiment with two specific embodiments：
Embodiment one：
Exemplified by making the 60Ah lithium ion batteries containing two single battery cores, single battery core includes positive plate 24, negative pole
Piece 25.
1) the positive pole sheet weight gear described in positive plate is determined, wherein, by weight range 5.11g~5.40g positive plate
Be divided into high, medium and low third gear, using every grade of weight range be 0.1g as standard, stepping is as follows：
| Class title | A1 | A2 | A3 |
| Gear bands/g | 5.11~5.20 | 5.21~5.30 | 5.31~5.40 |
2) the negative pole sheet weight gear described in negative plate is determined, wherein, by weight range 3.01g~3.30g negative plate
Be divided into high, medium and low third gear, using every grade of weight range be 0.1g as standard, stepping is as follows：
| Class title | B1 | B2 | B3 |
| Gear bands/g | 3.01~3.10 | 3.11~3.20 | 3.21~3.30 |
3) principle that positive and negative plate preferentially matches according to same class is made into one group, and every group contains positive plate 24, negative plate 25
Single battery core is made in piece, positive/negative plate, barrier film alternating lamination, and battery core stepping is as follows：
| Class title | C1 | C2 | C3 |
| Positive and negative plate class | A1, B1 | A2, B2 | A3, B3 |
4) for battery core by being divided into two groups in following form, i.e. single battery core C1 and single battery core C3 is simultaneously unified into a 30Ah electricity
Pond, or two single battery core C2 and a 30Ah battery is unified into, all anode ears of in parallel two single battery cores are riveted on just
In pole connection sheet, all negative electrode lugs are riveted in negative terminal connection sheet, and battery core loads housing after riveting.
| C1-C3 | C2 |
1000 batteries made as stated above, the positive pole weight of all batteries all fall within 252.24 ± 2.16g, and it is marked
Standard poor 0.05, all battery capacities all fall within 60 ± 0.5Ah, its standard deviation 0.03.
Embodiment two：
Exemplified by making the 150Ah lithium ion batteries containing 5 single battery cores, single battery core includes positive plate 24, negative pole
Piece 25.
1) the positive pole sheet weight gear described in positive plate is determined, wherein, by the positive plate of weight range 5.11~5.40 point
For high, medium and low third gear, using every grade of weight range be 0.1g as standard, stepping is as follows：
| Class title | A1 | A2 | A3 |
| Gear bands/g | 5.11~5.20 | 5.21~5.30 | 5.31~5.40 |
2) the negative pole sheet weight gear described in negative plate is determined, wherein, by the negative plate of weight range 3.01~3.30 point
For high, medium and low third gear, using every grade of weight range be 0.1g as standard, stepping is as follows：
| Class title | B1 | B2 | B3 |
| Gear bands/g | 3.01~3.10 | 3.11~3.20 | 3.21~3.30 |
3) principle that positive and negative plate preferentially matches according to same class is made into one group, and every group contains positive plate 24, negative plate 25
Single battery core is made in piece, positive/negative plate, barrier film alternating lamination, and battery core stepping is as follows：
| Class title | C1 | C2 | C3 |
| Positive and negative plate class | A1, B1 | A2, B2 | A3, B3 |
4) battery core is by being divided into two groups in following form, and two groups of battery cores are combined into 150Ah battery by certain amount, preferably
Combined using the battery core in 5 groups of the right grids, the battery core in less preferred 3 groups of the right grids of use is the same as in 1 group of left side grid
Battery core combines, and the battery core in secondary less preferred 1 group of the right grid of use is the same as the battery core combination in 2 groups of left side grids.Groups of list
All anode ears of body battery core are riveted in positive terminal connection sheet, and all negative electrode lugs are riveted in negative terminal connection sheet, after riveting
Battery core loads housing.
| C1-C3 | C2 |
1000 batteries made as stated above, the positive pole weight of all batteries all fall within 630.06 ± 5.4g, and it is marked
Standard poor 0.05, all battery capacities all fall within 150 ± 1.3Ah, its standard deviation 0.03.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
The lithium ion battery manufacture method provided by the present invention that carried out is discussed in detail above.It is used herein specifically
Individual example is set forth to the principle and embodiment of the present invention, and the explanation of above example is only intended to help and understands the present invention
Method and its core concept.It should be pointed out that for those skilled in the art, original of the invention is not being departed from
On the premise of reason, some improvement and modification can also be carried out to the present invention, these are improved and modification also falls into right of the present invention and wanted
In the protection domain asked.
Claims (6)
- A kind of 1. lithium ion battery manufacture method, it is characterised in that including：Determine the positive pole sheet weight gear belonging to positive plate, wherein, the positive pole sheet weight gear by gently to being divided into 1 again to N shelves, N is the positive integer more than 2；The positive plate, negative plate are matched according to default pole piece matched rule；Single battery core is made in barrier film, the positive plate of pairing and the negative plate, wherein, belong to M positive pole sheet weight shelves The positive plate of position is correspondingly formed the M shelves single battery cores of same gear, 1≤M≤N and M is positive integer；Determine that battery needs the quantity of single battery core in parallel according to battery capacity demand, wherein, when the N shelves are even gear, A Shelves single battery core and N+1-A shelves single battery cores match for combo, and 1≤A≤N, A are positive integer, and A ＜ (N+1-A)； When the N shelves are odd number shelves, B shelves single battery core matches for combo with N+1-B shelves single battery cores, 1≤B≤N, B is positive integer, B ＜ (N+1-B), and (N+1)/2 grade single battery core is individually used for combo.
- 2. lithium ion battery manufacture method according to claim 1, it is characterised in that the N shelves are odd number shelves.
- 3. lithium ion battery manufacture method according to claim 2, it is characterised in that the N shelves are 3 grades.
- 4. lithium ion battery manufacture method according to claim 3, it is characterised in that described matched according to default pole piece is advised Also include before then matching the positive plate, negative plate：The negative pole sheet weight gear belonging to the negative plate is determined, wherein, the negative pole sheet weight gear is by gently to being followed successively by again First negative pole sheet weight gear, the second negative pole sheet weight gear and the 3rd negative pole sheet weight gear, each negative pole sheet weight The negative plate minimum capacity of gear is more than the positive plate maximum capacity of the identical positive pole sheet weight gear；It is described to include according to the default pole piece matched rule matching positive plate, negative plate：The negative plate of gear identical with the positive plate is determined whether, if so, the positive/negative plate of identical gear matches.
- 5. lithium ion battery manufacture method according to claim 4, it is characterised in that it is described determine whether with it is described just During the negative plate of the identical gear of pole piece, if the negative plate of gear not identical with the positive plate, is determined whether The negative plate of a gear higher than the positive plate；The negative pole for determining whether a gear higher than the positive plate During piece, if so, the negative plate of the positive plate and a high gear matches, otherwise, it is determined whether having than the positive plate The negative plate of high two gear；It is described determine whether two gear higher than the positive plate the negative plate when, if so, institute The negative plate for stating positive plate and high two gear matches.
- 6. the lithium ion battery manufacture method according to claim 4 or 5, it is characterised in that each positive pole sheet weight shelves The weight range of position is identical, and the weight range of each negative pole sheet weight gear is identical.
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|---|---|---|---|
| CN201710970604.2A CN107565172B (en) | 2017-10-18 | 2017-10-18 | Method for manufacturing lithium ion battery |
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| CN107565172B CN107565172B (en) | 2019-12-20 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112490513A (en) * | 2020-12-21 | 2021-03-12 | 潍坊聚能电池有限公司 | Method for improving battery capacity consistency |
| CN116826209A (en) * | 2023-07-04 | 2023-09-29 | 深圳市龙星辰电源有限公司 | Method, system, storage medium and device for obtaining battery connection in battery pack |
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| CN201408817Y (en) * | 2009-05-19 | 2010-02-17 | 深圳市普天通数码实业有限公司 | Lithium ion battery cell |
| CN101867058A (en) * | 2010-07-09 | 2010-10-20 | 湖南科霸汽车动力电池有限责任公司 | Manufacturing method for electric core |
| CN102280665A (en) * | 2011-07-01 | 2011-12-14 | 山东上存能源股份有限公司 | Production method of lithium ion power battery with consistency improved |
| CN205543110U (en) * | 2016-03-18 | 2016-08-31 | 中山市众旺德新能源科技有限公司 | Square power battery |
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|---|---|---|---|---|
| CN101286577A (en) * | 2008-05-23 | 2008-10-15 | 清华大学 | Lithium ion power cell with high power |
| CN201408817Y (en) * | 2009-05-19 | 2010-02-17 | 深圳市普天通数码实业有限公司 | Lithium ion battery cell |
| CN101867058A (en) * | 2010-07-09 | 2010-10-20 | 湖南科霸汽车动力电池有限责任公司 | Manufacturing method for electric core |
| CN102280665A (en) * | 2011-07-01 | 2011-12-14 | 山东上存能源股份有限公司 | Production method of lithium ion power battery with consistency improved |
| CN205543110U (en) * | 2016-03-18 | 2016-08-31 | 中山市众旺德新能源科技有限公司 | Square power battery |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112490513A (en) * | 2020-12-21 | 2021-03-12 | 潍坊聚能电池有限公司 | Method for improving battery capacity consistency |
| CN116826209A (en) * | 2023-07-04 | 2023-09-29 | 深圳市龙星辰电源有限公司 | Method, system, storage medium and device for obtaining battery connection in battery pack |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107565172B (en) | 2019-12-20 |
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