CN103985911B - A kind of lithium ion battery aging method - Google Patents
A kind of lithium ion battery aging method Download PDFInfo
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- CN103985911B CN103985911B CN201410232827.5A CN201410232827A CN103985911B CN 103985911 B CN103985911 B CN 103985911B CN 201410232827 A CN201410232827 A CN 201410232827A CN 103985911 B CN103985911 B CN 103985911B
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- Prior art keywords
- battery
- stage
- lithium ion
- ion battery
- aging
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- 230000032683 aging Effects 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 34
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 29
- 238000006243 chemical reaction Methods 0.000 claims abstract description 9
- 239000000126 substance Substances 0.000 claims abstract description 8
- 229910052744 lithium Inorganic materials 0.000 claims description 4
- 239000005955 Ferric phosphate Substances 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 229940032958 ferric phosphate Drugs 0.000 claims description 2
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 claims description 2
- 229910000399 iron(III) phosphate Inorganic materials 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000014759 maintenance of location Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 238000007086 side reaction Methods 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 238000010406 interfacial reaction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000007784 solid electrolyte Substances 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- H01M10/058—Construction or manufacture
-
- 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
-
- 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
-
- 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
Abstract
The present invention relates to a kind of lithium ion battery aging method, comprise the following steps：Step 1：To the battery after chemical conversion according to the first default environment temperature and the first Preset Time, the standing of first stage is carried out；Step 2：Battery to being stood by the first stage presets environment temperature and the second Preset Time according to second, carries out the standing of second stage；Step 3：Battery to being stood by second stage presets environment temperature and the 3rd Preset Time according to the 3rd, carries out the standing of phase III；Step 4：Step 1 to step 3 is repeated according to predetermined cycle-index, until lithium ion battery is aging finishing.It is more long instant invention overcomes ageing time in traditional lithium-ion battery aging method, the shortcomings of aging rear battery performance is poor.The inventive method can pick out the bad battery of high temperature performance, it is ensured that aging rear battery with two side terminals；The method ageing time is shorter simultaneously, improves production efficiency, and the method is simple to operate, and reliability is high.
Description
Technical field
The present invention relates to technical field of lithium batteries, more particularly to a kind of lithium ion battery aging method.
Background technology
Lithium ion battery with energy density it is high, power density is high, have extended cycle life, security is good the advantages of in new energy vapour
The fields such as car, electric bicycle, energy storage are widely applied.
During the manufacturing of lithium ion battery, Aging Step is provided with, the step refers to certain to battery
Carry out standing a period of time under state-of-charge, after typically occurring in battery completion initial charge chemical conversion, in order to make battery
The abundant activating reaction of each several part material, reaches relatively steady state.Lithium ion battery one side both positive and negative polarity in ageing process
Material continues to be reacted with electrolyte, to the SEI films formed in formation process on electrode material with electrolysis liquid interface
Modification and reformation that (Solid Electrolyte Interface, solid electrolyte interface film) is continued, make SEI films more
Plus it is fine and close and uniform, it is ensured that battery has given play to more excellent performance during subsequent use.Another aspect battery is quiet
During putting, some side reaction occurs, and produces self-discharge phenomenon, due to each electricity of the influence of production process and material itself
The degree that pond occurs self discharge is different, and the larger battery of self discharge or underproof battery are picked out by ageing process, protects
Card battery with two side terminals and reliability.
Conventional lithium ion battery aging method, is that lithium ion battery is melted into after normal temperature environment in initial charge at present
Under the conditions of stand above time fortnight, the method stands under normal temperature condition, and interfacial reaction is slower, the shape of SEI films
Into sufficiently complete, the generation of side reaction is may proceed in follow-up charge and discharge process, the capacity attenuation of battery influences battery
Life-span.The environment temperature under normal temperature condition be cannot be guaranteed simultaneously, and different environment temperature can be produced to the internal resistance of battery, self discharge
Raw difference, causes select battery consistency poor.And the method time of repose is more long, production efficiency is low, influence
Scale of mass production.
Following Aging Step is carried out to battery according to conventional batteries aging method：Battery is stood 2 under normal temperature environment
Week, to it is above-mentioned it is aging after battery carry out discharge capacity test and inner walkway, and test circulating battery to the 200th time
Discharge capacity, obtains data below：Internal resistance is 3.8m Ω, and discharge capacity is 8.069Ah first, and the 200th time discharge capacity is
7.649Ah, capability retention is 94.8% within the 200th week.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of performance that can lift battery, save ageing time, carry
The lithium ion battery aging method of high efficiency.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：A kind of lithium ion battery aging method, including it is following
Step：
Step 1：To the battery after chemical conversion according to the first default environment temperature and the first Preset Time, the first stage is carried out
Stand；
Step 2：Battery to being stood by the first stage presets environment temperature and the second Preset Time according to second, carries out
The standing of second stage；
Step 3：Battery to being stood by second stage presets environment temperature and the 3rd Preset Time according to the 3rd, carries out
The standing of phase III；
Step 4：Step 1 to step 3 is repeated according to predetermined cycle-index, until lithium ion battery is aging finishing.
The beneficial effects of the invention are as follows：A kind of lithium ion battery aging method proposed by the present invention, overcome conventional lithium from
Ageing time is more long in sub- cell degradation method, the shortcomings of aging rear battery performance is poor.The inventive method propose in difference
The quick aging method in stage, can accelerate under the high temperature conditions first interfacial reaction, make interface SEI films be formed more to cause
It is close, uniform complete, it is suppressed that the generation of follow-up side reaction, battery is possessed excellent cycle performance；Secondly the method is not
With being carried out under environment temperature, standing is aging, battery is adapted in high and low temperature environment, can pick out high temperature performance bad
Battery, it is ensured that aging rear battery with two side terminals；The method ageing time is shorter simultaneously, improves production efficiency, and should
Method is simple to operate, and reliability is high.
On the basis of above-mentioned technical proposal, the present invention can also do following improvement.
Further, the described first default environment temperature is 35 DEG C to 50 DEG C.
Further, first Preset Time is 24 hours to 48 hours.
Further, the described second default environment temperature is 15 DEG C to 30 DEG C.
Further, second Preset Time is 24 hours to 72 hours.
Further, the described 3rd default environment temperature is -20 DEG C to 0 DEG C.
Further, the 3rd Preset Time is 48 hours to 72 hours.
Further, the predetermined cycle-index is 1 time to 2 times.
Further, the lithium ion battery is square aluminum hull ferric phosphate lithium cell.
Brief description of the drawings
Fig. 1 is the inventive method flow chart of steps.
Specific embodiment
Principle of the invention and feature are described below in conjunction with accompanying drawing, example is served only for explaining the present invention, and
It is non-for limiting the scope of the present invention.
As shown in figure 1, being the inventive method flow chart of steps.
Embodiment 1
Step 1：The standing of first stage is carried out to the battery after chemical conversion, i.e., stands 24h in 40 DEG C；
Step 2：Battery to being stood by the first stage carries out the standing of second stage, i.e., stand 72h in 25 DEG C；
Step 3：Battery to being stood by second stage carries out the standing of phase III, i.e., 48h is stood in -10 DEG C,
Lithium ion battery is aging to be finished.
Using the method lithium ion battery is carried out it is aging after, obtain data below：Internal resistance is 3.5m Ω, and electric discharge first is held
It is 8.084Ah to measure, and the 200th discharge capacity is 7.776Ah, and capability retention is 96.2% within the 200th week.
Embodiment 2
Step 1：The standing of first stage is carried out to the battery after chemical conversion, i.e., stands 48h in 45 DEG C；
Step 2：Battery to being stood by the first stage carries out the standing of second stage, i.e., stand 48h in 25 DEG C：
Step 3：Battery to being stood by second stage carries out the standing of phase III, i.e., 72h is stood in -10 DEG C,
Lithium ion battery is aging to be finished.
Using the method lithium ion battery is carried out it is aging after, obtain data below：Internal resistance is 3.4m Ω, and electric discharge first is held
It is 8.065Ah to measure, and the 200th discharge capacity is 7.750Ah, and capability retention is 96.1% within the 200th week.
Embodiment 3
Step 1：The standing of first stage is carried out to the battery after chemical conversion, i.e., stands 24h in 45 DEG C；
Step 2：Battery to being stood by the first stage carries out the standing of second stage, i.e., stand 24h in 15 DEG C；
Step 3：Battery to being stood by second stage carries out the standing of phase III, i.e., 48h is stood in -20 DEG C；
Step 4：Step 1 to step 3 is circulated into execution 1 time, until lithium ion battery is aging finishing.
Using the method lithium ion battery is carried out it is aging after, obtain data below：Internal resistance is 3.3m Ω, and electric discharge first is held
It is 8.055Ah to measure, and the 200th discharge capacity is 7.781Ah, and capability retention is 96.6% within the 200th week.
Embodiment 4
Step 1：The standing of first stage is carried out to the battery after chemical conversion, i.e., stands 24h in 45 DEG C；
Step 2：Battery to being stood by the first stage carries out the standing of second stage, i.e., stand 24h in 30 DEG C；
Step 3：Battery to being stood by second stage carries out the standing of phase III, i.e., stand 48h in 0 DEG C；
Step 4：Step 1 to step 3 is circulated into execution 1 time, until lithium ion battery is aging finishing.
Using the method lithium ion battery is carried out it is aging after, obtain data below：Internal resistance is 3.1m Ω, and electric discharge first is held
It is 8.073Ah to measure, and the 200th discharge capacity is 7.839Ah, and capability retention is 97.1% within the 200th week.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all it is of the invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (3)
1. a kind of lithium ion battery aging method, it is characterised in that comprise the following steps：
Step 1：To the battery after chemical conversion according to the first default environment temperature and the first Preset Time, the quiet of first stage is carried out
Put, the described first default environment temperature is 35 DEG C to 50 DEG C, and the described first default environment temperature is 35 DEG C to 50 DEG C, described first
Preset Time is 24 hours to 48 hours；
Step 2：Battery to being stood by the first stage presets environment temperature and the second Preset Time according to second, carries out second
The standing in stage, the described second default environment temperature is 15 DEG C to 30 DEG C, and second Preset Time is 24 hours to 72 hours；
Step 3：Battery to being stood by second stage presets environment temperature and the 3rd Preset Time according to the 3rd, carries out the 3rd
The standing in stage, the described 3rd default environment temperature is -20 DEG C to 0 DEG C, and the 3rd Preset Time is 48 hours to 72 hours；
Step 4：Step 1 to step 3 is repeated according to predetermined cycle-index, until lithium ion battery is aging finishing.
2. lithium ion battery aging method according to claim 1, it is characterised in that：The predetermined cycle-index is 1 time
To 2 times.
3. lithium ion battery aging method according to claim 1, it is characterised in that：The lithium ion battery is square aluminum
Shell ferric phosphate lithium cell.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410232827.5A CN103985911B (en) | 2014-05-29 | 2014-05-29 | A kind of lithium ion battery aging method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410232827.5A CN103985911B (en) | 2014-05-29 | 2014-05-29 | A kind of lithium ion battery aging method |
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| CN103985911A CN103985911A (en) | 2014-08-13 |
| CN103985911B true CN103985911B (en) | 2017-06-06 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105633474A (en) * | 2016-01-08 | 2016-06-01 | 九江迅通新能源科技有限公司 | Formation method for lithium battery employing ternary material as positive main material |
| CN111653842B (en) * | 2020-03-20 | 2021-08-13 | 万向一二三股份公司 | Low-self-discharge-rate lithium ion battery formation method and ternary soft-package lithium ion battery |
| CN113036319B (en) * | 2021-03-05 | 2022-07-26 | 宜春清陶能源科技有限公司 | Battery standing method |
| CN114335770A (en) * | 2021-12-31 | 2022-04-12 | 江苏量能动力科技有限公司 | Cold and hot alternate aging method for lithium battery |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101685888A (en) * | 2008-09-25 | 2010-03-31 | 深圳市比克电池有限公司 | Ageing method of liquid electrolyte battery |
| CN101714673A (en) * | 2009-11-18 | 2010-05-26 | 中国科学院上海微系统与信息技术研究所 | Method for improving storage/shelving performance of lithium ion battery |
| CN102035026A (en) * | 2009-09-25 | 2011-04-27 | 三星Sdi株式会社 | Method for manufacturing lithium ion secondary battery |
| CN102956932A (en) * | 2011-08-18 | 2013-03-06 | 北汽福田汽车股份有限公司 | Lithium ion secondary battery core aging method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5172579B2 (en) * | 2008-10-02 | 2013-03-27 | パナソニック株式会社 | Cylindrical battery inspection method |
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2014
- 2014-05-29 CN CN201410232827.5A patent/CN103985911B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101685888A (en) * | 2008-09-25 | 2010-03-31 | 深圳市比克电池有限公司 | Ageing method of liquid electrolyte battery |
| CN102035026A (en) * | 2009-09-25 | 2011-04-27 | 三星Sdi株式会社 | Method for manufacturing lithium ion secondary battery |
| CN101714673A (en) * | 2009-11-18 | 2010-05-26 | 中国科学院上海微系统与信息技术研究所 | Method for improving storage/shelving performance of lithium ion battery |
| CN102956932A (en) * | 2011-08-18 | 2013-03-06 | 北汽福田汽车股份有限公司 | Lithium ion secondary battery core aging method |
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| CN103985911A (en) | 2014-08-13 |
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Address after: 312300. B36 building, B03 building, Shishi Plaza Business Garden, Xiao Yue town, Shangyu District, Zhejiang, Shaoxing, China Applicant after: SHAOXING ANKA AUTO PARTS CO., LTD. Applicant after: Lin Daoyong Address before: 312300. B36 building, B03 building, Shishi Plaza Business Garden, Xiao Yue town, Shangyu District, Zhejiang, Shaoxing, China Applicant before: Shangyu peace card trailer accessory company limited Applicant before: Lin Daoyong |
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Inventor after: Li Bingjiang Inventor after: Zhou Anping Inventor after: Xiao Ning Inventor after: Liang Qun Inventor after: Wang Liqun Inventor after: Wu Lijun Inventor after: Wang Lianbang Inventor before: Zhang Bo Inventor before: Lin Daoyong |
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Effective date of registration: 20170505 Address after: 225300, 213, Zhenlong Garden Road, Hailing District, Jiangsu, Taizhou Applicant after: JIANGSU ZHIHANG NEW ENERGY CO., LTD. Address before: 312300. B36 building, B03 building, Shishi Plaza Business Garden, Xiao Yue town, Shangyu District, Zhejiang, Shaoxing, China Applicant before: SHAOXING ANKA AUTO PARTS CO., LTD. Applicant before: Lin Daoyong |
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