CN109768315A - A kind of method and method of optimization battery core chemical conversion pressure - Google Patents
A kind of method and method of optimization battery core chemical conversion pressure Download PDFInfo
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- CN109768315A CN109768315A CN201811594135.XA CN201811594135A CN109768315A CN 109768315 A CN109768315 A CN 109768315A CN 201811594135 A CN201811594135 A CN 201811594135A CN 109768315 A CN109768315 A CN 109768315A
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- Prior art keywords
- battery core
- pressure
- chemical conversion
- formation device
- 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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- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention belongs to battery technology fields, and in particular to a method of optimization battery core is melted into pressure, includes the following steps: S1, battery core is placed in battery formation clamp；S2, by temperature setting in fixture be 80 ± 5 DEG C；It is 700 ± 30Kgf that S3, formation device cylinder, which increase pressure,；S4, stewing process；It is 1050 ± 30Kgf that S5, formation device cylinder, which increase pressure,；S6, stewing process.This method can reduce hot melt adhesive offset inside battery core, reduce edge sealing reduce off-flavor object failure battery core, to promote battery core quality, reduce leakage risk, it can avoid bring loss due to pressure is too big to the full extent simultaneously, and have many advantages, such as good effect, at low cost, efficient, strong real-time, it is scientific, be suitable for large-scale automated production.
Description
Technical field
The invention belongs to battery technology fields, and in particular to a kind of method and method of optimization battery core chemical conversion pressure.
Background technique
In Electric Vehicles manufacturing, influence of the pressure of chemical conversion to battery core is very big, can infiltration and patch to pole piece
The offset of glue has an impact, and then has an impact to the K value and capacity of battery core, has an impact to the drop test of battery；Battery
Chemical conversion pressure when cannot control, will lead to battery core quality cannot ensure, flow into client and be likely to result in biggish peace
Full hidden danger.
In the prior art, the setting of chemical conversion pressure is unreasonable, and the hot melt adhesive of core is caused shift phenomenon, hot melt adhesive offset occur
After be moved to two edge sealing sides, when two envelopes, is sealed to gummed paper in edge sealing, causes edge sealing to fail, leads to battery core leakage.
In summary, the relevant technologies existing defects, it would be highly desirable to perfect.
Summary of the invention
It is an object of the invention to: in view of the deficiencies of the prior art, and a kind of method of optimization battery core chemical conversion pressure is provided,
It is pressurized and controls to battery core chemical conversion, solve hot melt adhesive gummed paper offset problem inside battery core, reduce edge sealing reduce off-flavor object, ensure that
Fall effect, improves product quality.
To achieve the above object, the present invention adopts the following technical scheme:
A method of optimization battery core is melted into pressure, includes the following steps:
S1, battery core is placed in battery formation clamp；
S2, by temperature setting in fixture be 80 ± 5 DEG C；
It is 700 ± 30Kgf that S3, formation device cylinder, which increase pressure,；
S4, stewing process；
It is 1050 ± 30Kgf that S5, formation device cylinder, which increase pressure,；
S6, stewing process.This method can reduce hot melt adhesive offset inside battery core, reduce edge sealing reduce off-flavor object failure battery core, thus
Battery core quality is promoted, leakage risk is reduced, while bring loss due to pressure is too big can be avoided to the full extent, and have
Effect is good, at low cost, efficient, strong real-time, it is scientific, the advantages that, be suitable for large-scale automated production.
A kind of improvement of method as optimization battery core chemical conversion pressure of the present invention, in step sl, each fixture
2 battery cores are horizontally arranged in layer.This is a kind of preferred embodiment, in addition to this, can be according to the model and size of specific equipment, spirit
The quantity of battery core is set livingly, is flexibly set according to the actual situation.
A kind of improvement of method as optimization battery core chemical conversion pressure of the present invention, the quantity of the fixture layer is at least
It is 2.This design can increase production efficiency.
A kind of improvement of method as optimization battery core chemical conversion pressure of the present invention, in step s 4, including it is as follows
Step:
M1,30 seconds are stood；
M2, within 15 minutes, formation device charges to battery core with 292mA constant-current supply, charges to 4400mV；
M3,30 seconds are stood.
A kind of improvement of method as optimization battery core chemical conversion pressure of the present invention, in step s 6, including it is as follows
Step:
N1, within 5 minutes, formation device charges to battery core with 2920mA constant-current supply, charges to 4400mV；
N2,30 seconds are stood；
N3, within 31 minutes, formation device charges to battery core with 3504mA constant-current supply, charges to 4400mV；
N4,30 seconds are stood.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes a part of the invention, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart of method in the present invention.
Specific embodiment
As used some vocabulary to censure specific components in the specification and claims.Those skilled in the art answer
It is understood that hardware manufacturer may call the same component with different nouns.This specification and claims are not with name
The difference of title is as the mode for distinguishing component, but with the difference of component functionally as the criterion of differentiation.Such as logical
The "comprising" of piece specification and claim mentioned in is an open language, therefore should be construed to " include but do not limit
In "." substantially " refer within an acceptable error range, those skilled in the art can within a certain error range solve described in
Technical problem basically reaches the technical effect.
In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "left", "right", " water
It is flat " etc. the orientation or positional relationships of instructions be to be based on the orientation or positional relationship shown in the drawings, be merely for convenience of describing this hair
Bright and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation
Construction and operation, therefore be not considered as limiting the invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be
Mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary
Connection inside element.For the ordinary skill in the art, above-mentioned term can be understood at this as the case may be
Concrete meaning in invention.
Below in conjunction with attached drawing, invention is further described in detail, but not as a limitation of the invention.
As shown in Figure 1, a kind of method of optimization battery core chemical conversion pressure, includes the following steps:
S1, battery core is placed in battery formation clamp；
S2, by temperature setting in fixture be 80 ± 5 DEG C；
It is 700 ± 30Kgf that S3, formation device cylinder, which increase pressure,；
S4, stewing process；
It is 1050 ± 30Kgf that S5, formation device cylinder, which increase pressure,；
S6, stewing process.This method can reduce hot melt adhesive offset inside battery core, reduce edge sealing reduce off-flavor object failure battery core, thus
Battery core quality is promoted, leakage risk is reduced, while bring loss due to pressure is too big can be avoided to the full extent, and have
Effect is good, at low cost, efficient, strong real-time, it is scientific, the advantages that, be suitable for large-scale automated production.
Preferably, in step sl, 2 battery cores are horizontally arranged in each fixture layer.This is a kind of preferred embodiment, except this it
Outside, the quantity of battery core can be flexibly set, is flexibly set according to the actual situation according to the model and size of specific equipment.
Preferably, the quantity of the fixture layer is at least 2.This design can increase production efficiency.
Preferably, in step s 4, include the following steps:
M1,30 seconds are stood；
M2, within 15 minutes, formation device charges to battery core with 292mA constant-current supply, charges to 4400mV；
M3,30 seconds are stood.
Preferably, in step s 6, include the following steps:
N1, within 5 minutes, formation device charges to battery core with 2920mA constant-current supply, charges to 4400mV；
N2,30 seconds are stood；
N3, within 31 minutes, formation device charges to battery core with 3504mA constant-current supply, charges to 4400mV；
N4,30 seconds are stood.
Several preferred embodiments of the invention have shown and described in above description, but as previously described, it should be understood that the present invention
Be not limited to forms disclosed herein, should not be regarded as an exclusion of other examples, and can be used for various other combinations,
Modification and environment, and the above teachings or related fields of technology or knowledge can be passed through within that scope of the inventive concept describe herein
It is modified.And changes and modifications made by those skilled in the art do not depart from the spirit and scope of the present invention, then it all should be in this hair
In the protection scope of bright appended claims.
Claims (5)
1. a kind of method of optimization battery core chemical conversion pressure, characterized by the following steps:
S1, battery core is placed in battery formation clamp；
S2, by temperature setting in fixture be 80 ± 5 DEG C；
It is 700 ± 30Kgf that S3, formation device cylinder, which increase pressure,；
S4, stewing process；
It is 1050 ± 30Kgf that S5, formation device cylinder, which increase pressure,；
S6, stewing process.
2. the method for optimization battery core chemical conversion pressure as described in claim 1, it is characterised in that: in step sl, each fixture
2 battery cores are horizontally arranged in layer.
3. the method for optimization battery core chemical conversion pressure as claimed in claim 2, it is characterised in that: the quantity of the fixture layer is at least
It is 2.
4. the method for optimization battery core chemical conversion pressure as described in claim 1, it is characterised in that: in step s 4, including it is as follows
Step:
M1,30 seconds are stood；
M2, within 15 minutes, formation device charges to battery core with 292mA constant-current supply, charges to 4400mV；
M3,30 seconds are stood.
5. the method for optimization battery core chemical conversion pressure as described in claim 1, it is characterised in that: in step s 6, including it is as follows
Step:
N1, within 5 minutes, formation device charges to battery core with 2920mA constant-current supply, charges to 4400mV；
N2,30 seconds are stood；
N3, within 31 minutes, formation device charges to battery core with 3504mA constant-current supply, charges to 4400mV；
N4,30 seconds are stood.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811594135.XA CN109768315A (en) | 2018-12-25 | 2018-12-25 | A kind of method and method of optimization battery core chemical conversion pressure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811594135.XA CN109768315A (en) | 2018-12-25 | 2018-12-25 | A kind of method and method of optimization battery core chemical conversion pressure |
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| CN109768315A true CN109768315A (en) | 2019-05-17 |
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| CN108258347A (en) * | 2017-12-28 | 2018-07-06 | 国联汽车动力电池研究院有限责任公司 | A kind of chemical synthesizing method of silicium cathode soft bag lithium ionic cell |
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2018
- 2018-12-25 CN CN201811594135.XA patent/CN109768315A/en active Pending
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| CN104600385A (en) * | 2015-01-10 | 2015-05-06 | 鸿德新能源科技有限公司 | Quick forming method of power type soft packaging polymer battery |
| CN105406130A (en) * | 2015-11-30 | 2016-03-16 | 山东精工电子科技有限公司 | Soft package lithium-ion battery formation method |
| CN105720307A (en) * | 2016-02-23 | 2016-06-29 | 东莞锂威能源科技有限公司 | Method for improving self discharge of lithium ion battery core |
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Application publication date: 20190517 |