CN105762430A - Lithium iron phosphate power battery formation method - Google Patents
Lithium iron phosphate power battery formation method Download PDFInfo
- Publication number
- CN105762430A CN105762430A CN201610251750.5A CN201610251750A CN105762430A CN 105762430 A CN105762430 A CN 105762430A CN 201610251750 A CN201610251750 A CN 201610251750A CN 105762430 A CN105762430 A CN 105762430A
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- Prior art keywords
- battery
- vacuum
- iron phosphate
- lithium iron
- aging
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/446—Initial charging measures
-
- 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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- 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 invention discloses a lithium iron phosphate power battery formation method.The method particularly includes following steps: (1), placing a battery after liquid injection in an environment with high temperature of 39-45 DEG C, using a vacuum formation device to vacuumize the inside of the battery, shelving to enable a pole piece and a diaphragm to fully absorb liquid and to be soaked, and charging; (2), charging the battery by stages, and using the vacuum formation device to vacuumize the inside of the battery in the charging process to complete formation; (3), after formation is completed, using a clamp to seal the battery, and aging the battery at high temperature; (4), after aging is completed, vacuumizing the battery, maintaining pressure for 1h, sealing the battery by knocking a steel ball, and performing capacity grading.By using the method, inside environment of a battery shell can be improved effectively, and bulging of the battery in the process of use is avoided, so that performance attenuation of the battery is delayed, a stable SEI film is generated, electric performance and safety of the battery are improved, formation time is shortened, and production efficiency is improved.
Description
Technical field
The present invention relates to technical field of lithium batteries, specifically a kind of lithium iron phosphate dynamic battery chemical synthesizing method.
Background technology
Battery (Battery) refers to the segment space filling electrolyte solution and metal electrode to produce the cup of electric current, groove or other containers or clad vessel, and chemical energy can become the device of electric energy.Have positive pole, negative pole point.Utilize the battery as energy source, can obtain that there is burning voltage, stabling current, long-time stable is powered, by the electric current that ectocine is only small, and battery structure is simple, easy to carry, discharge and recharge is easy to operation, not by the impact of outside climatic and temperature, stable and reliable for performance, the various aspects in modern society lives play great role.
Along with the fast development of ev industry, car load factory is increasing to the demand of electrokinetic cell, and supply falls short of demand for electrokinetic cell in the market, and the production cycle of electrokinetic cell is longer, is one of factor of sales promotion restricting electric automobile.Traditional chemical synthesizing method is consuming time longer, it is impossible to well adapt to the delivery cycle of electrokinetic cell, and exploitation is a kind of reliable and stable, and rapid forming method just seems very necessary.
Summary of the invention
It is an object of the invention to provide a kind of lithium iron phosphate dynamic battery chemical synthesizing method, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, the present invention provides following technical scheme:
A kind of lithium iron phosphate dynamic battery chemical synthesizing method, it specifically comprises the following steps that
(1) battery after fluid injection is placed under the high temperature of 39～45 DEG C, uses vacuum formation device to keep inside battery vacuum, and shelve and make pole piece and barrier film abundant imbibition infiltration, then in charging；
(2) battery is charged stage by stage, charging process uses vacuum formation device keep inside battery vacuum between-0.03～-0.04MPa, to complete chemical conversion；
(3) with fixture by cell sealing after being melted into, it is placed under the high temperature of 39～45 DEG C aging；
(4) aging complete after, to battery vacuum-pumping pressurize 1h, after battery struck steel ball seal, then carry out partial volume.
As the further scheme of the present invention: in described step (1), the vacuum pressure of inside battery is 0.03～0.04MPa.
As the further scheme of the present invention: the time of shelving in described step (1) is 24～48h.
As the further scheme of the present invention: the time aging in described step (3) is 24～72h.
Compared with prior art, the invention has the beneficial effects as follows: the present invention is possible not only to effectively improve battery container internal medium, avoid battery in use battery and produce tympanites, thus delaying the performance degradation of battery, generate more stable SEI film, improve battery electrical property and security performance, shorten the chemical conversion time simultaneously, improve production efficiency.
Accompanying drawing explanation
Fig. 1 is the process step of the invention figure.
Detailed description of the invention
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 clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
Embodiment 1
In the embodiment of the present invention, a kind of lithium iron phosphate dynamic battery chemical synthesizing method, it specifically comprises the following steps that
(1) battery after fluid injection is placed under the high temperature of 39 DEG C, uses vacuum formation device to keep inside battery vacuum between 0.03MPa, and shelve 24h, make pole piece and the abundant imbibition infiltration of barrier film, then in charging；
(2) battery is charged stage by stage, charging process uses vacuum formation device keep inside battery vacuum between-0.03MPa, to complete chemical conversion；
(3) with fixture by cell sealing after being melted into, being placed under the high temperature of 39 DEG C aging, ageing time is 24h；
(4) aging complete after, to battery vacuum-pumping pressurize 1h, after battery struck steel ball seal, then carry out partial volume.
Embodiment 2
In the embodiment of the present invention, a kind of lithium iron phosphate dynamic battery chemical synthesizing method, it specifically comprises the following steps that
(1) battery after fluid injection is placed under the high temperature of 43 DEG C, uses vacuum formation device to keep inside battery vacuum between 0.035MPa, and shelve 36h, make pole piece and the abundant imbibition infiltration of barrier film, then in charging；
(2) battery is charged stage by stage, charging process uses vacuum formation device keep inside battery vacuum between-0.035MPa, to complete chemical conversion；
(3) with fixture by cell sealing after being melted into, being placed under the high temperature of 43 DEG C aging, ageing time is 48h；
(4) aging complete after, to battery vacuum-pumping pressurize 1h, after battery struck steel ball seal, then carry out partial volume.
Embodiment 3
In the embodiment of the present invention, a kind of lithium iron phosphate dynamic battery chemical synthesizing method, it specifically comprises the following steps that
(1) battery after fluid injection is placed under the high temperature of 45 DEG C, uses vacuum formation device to keep inside battery vacuum between 0.04MPa, and shelve 48h, make pole piece and the abundant imbibition infiltration of barrier film, then in charging；
(2) battery is charged stage by stage, charging process uses vacuum formation device keep inside battery vacuum between-0.04MPa, to complete chemical conversion；
(3) with fixture by cell sealing after being melted into, being placed under the high temperature of 45 DEG C aging, ageing time is 72h；
(4) aging complete after, to battery vacuum-pumping pressurize 1h, after battery struck steel ball seal, then carry out partial volume.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when without departing substantially from the spirit of the present invention or basic feature, it is possible to realize the present invention in other specific forms.Therefore, no matter from which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the invention rather than described above limits, it is intended that all changes in the implication of the equivalency dropping on claim and scope included in the present invention.Any accompanying drawing labelling in claim should be considered as the claim that restriction is involved.
In addition, it is to be understood that, although this specification is been described by according to embodiment, but not each embodiment only comprises an independent technical scheme, this narrating mode of description is only for clarity sake, description should be made as a whole by those skilled in the art, and the technical scheme in each embodiment through appropriately combined, can also form other embodiments that it will be appreciated by those skilled in the art that.
Claims (4)
1. a lithium iron phosphate dynamic battery chemical synthesizing method, it is characterised in that it specifically comprises the following steps that
(1) battery after fluid injection is placed under the high temperature of 39～45 DEG C, uses vacuum formation device to keep inside battery vacuum, and shelve and make pole piece and barrier film abundant imbibition infiltration, then in charging；
(2) battery is charged stage by stage, charging process uses vacuum formation device keep inside battery vacuum between-0.03～-0.04MPa, to complete chemical conversion；
(3) with fixture by cell sealing after being melted into, it is placed under the high temperature of 39～45 DEG C aging；
(4) aging complete after, to battery vacuum-pumping pressurize 1h, after battery struck steel ball seal, then carry out partial volume.
2. a kind of lithium iron phosphate dynamic battery chemical synthesizing method according to claim 1, it is characterised in that in described step (1), the vacuum pressure of inside battery is 0.03～0.04MPa.
3. a kind of lithium iron phosphate dynamic battery chemical synthesizing method according to claim 1, it is characterised in that the time of shelving in described step (1) is 24～48h.
4. a kind of lithium iron phosphate dynamic battery chemical synthesizing method according to claim 1, it is characterised in that the time aging in described step (3) is 24～72h.
Priority Applications (1)
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| CN201610251750.5A CN105762430A (en) | 2016-04-21 | 2016-04-21 | Lithium iron phosphate power battery formation method |
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| CN201610251750.5A CN105762430A (en) | 2016-04-21 | 2016-04-21 | Lithium iron phosphate power battery formation method |
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| CN105762430A true CN105762430A (en) | 2016-07-13 |
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| CN201610251750.5A Pending CN105762430A (en) | 2016-04-21 | 2016-04-21 | Lithium iron phosphate power battery formation method |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106067561A (en) * | 2016-07-19 | 2016-11-02 | 湖北金泉新材料有限责任公司 | A kind of lithium ion battery chemical synthesis technology |
| CN106848187A (en) * | 2016-12-16 | 2017-06-13 | 浙江超威创元实业有限公司 | A kind of method for improving electrodes of lithium-ion batteries rate of liquid aspiration and liquid absorption |
| CN107528093A (en) * | 2017-08-31 | 2017-12-29 | 中盐安徽红四方锂电有限公司 | A kind of aging technique of lithium iron phosphate dynamic battery |
| CN107579301A (en) * | 2017-08-31 | 2018-01-12 | 中盐安徽红四方锂电有限公司 | A kind of chemical synthesis technology of lithium iron phosphate dynamic battery |
| CN107768721A (en) * | 2016-08-22 | 2018-03-06 | 万向二三股份公司 | A kind of lithium-ion-power cell is efficiently melted into and method for separating |
| CN108054436A (en) * | 2017-12-13 | 2018-05-18 | 桑顿新能源科技有限公司 | Improve chemical conversion and the verification method of ferric phosphate lithium cell cycle performance |
| CN108110348A (en) * | 2017-11-14 | 2018-06-01 | 合肥国轩高科动力能源有限公司 | A kind of compound method for lithium ion battery |
| CN109742451A (en) * | 2019-01-23 | 2019-05-10 | 深圳新恒业电池科技有限公司 | The electrolyte filling method of column lithium ion battery |
| CN109921119A (en) * | 2019-03-08 | 2019-06-21 | 安徽泰能新能源科技有限公司 | A kind of cylindrical lithium ion battery method for pre-charging, production method and its obtained product |
| CN110247121A (en) * | 2019-06-25 | 2019-09-17 | 桑顿新能源科技有限公司 | The electrolyte wetting method of lithium ion battery and its lithium ion battery and electronic device being prepared |
| CN111554978A (en) * | 2020-03-20 | 2020-08-18 | 浙江南都电源动力股份有限公司 | Segmented negative pressure formation method of lithium ion battery |
| CN112751098A (en) * | 2021-01-25 | 2021-05-04 | 唐山航天万源科技有限公司 | Formation method of lithium iron phosphate battery |
| CN112820964A (en) * | 2021-01-25 | 2021-05-18 | 江西安驰新能源科技有限公司 | Aging and capacity grading method for lithium ion battery |
| CN114512702A (en) * | 2022-02-10 | 2022-05-17 | 天能电池集团(马鞍山)新能源科技有限公司 | Formation and post-treatment process for rapidly stabilizing open-circuit voltage of storage battery |
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| CN101677138A (en) * | 2008-09-17 | 2010-03-24 | 深圳市比克电池有限公司 | Method and device of formatting lithium ion battery |
| CN102969537A (en) * | 2012-11-19 | 2013-03-13 | 广东志成冠军集团有限公司 | Formation method of high-capacity power lithium iron phosphate battery |
| CN104037456A (en) * | 2014-06-16 | 2014-09-10 | 张晶晶 | Rapid forming process of iron phosphate lithium battery |
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- 2016-04-21 CN CN201610251750.5A patent/CN105762430A/en active Pending
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| CN101677138A (en) * | 2008-09-17 | 2010-03-24 | 深圳市比克电池有限公司 | Method and device of formatting lithium ion battery |
| CN102969537A (en) * | 2012-11-19 | 2013-03-13 | 广东志成冠军集团有限公司 | Formation method of high-capacity power lithium iron phosphate battery |
| CN104037456A (en) * | 2014-06-16 | 2014-09-10 | 张晶晶 | Rapid forming process of iron phosphate lithium battery |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106067561A (en) * | 2016-07-19 | 2016-11-02 | 湖北金泉新材料有限责任公司 | A kind of lithium ion battery chemical synthesis technology |
| CN107768721A (en) * | 2016-08-22 | 2018-03-06 | 万向二三股份公司 | A kind of lithium-ion-power cell is efficiently melted into and method for separating |
| CN106848187A (en) * | 2016-12-16 | 2017-06-13 | 浙江超威创元实业有限公司 | A kind of method for improving electrodes of lithium-ion batteries rate of liquid aspiration and liquid absorption |
| CN107528093B (en) * | 2017-08-31 | 2020-10-02 | 中盐安徽红四方锂电有限公司 | Aging process of lithium iron phosphate power battery |
| CN107579301B (en) * | 2017-08-31 | 2020-04-10 | 中盐安徽红四方锂电有限公司 | Formation process of lithium iron phosphate power battery |
| CN107579301A (en) * | 2017-08-31 | 2018-01-12 | 中盐安徽红四方锂电有限公司 | A kind of chemical synthesis technology of lithium iron phosphate dynamic battery |
| CN107528093A (en) * | 2017-08-31 | 2017-12-29 | 中盐安徽红四方锂电有限公司 | A kind of aging technique of lithium iron phosphate dynamic battery |
| CN108110348A (en) * | 2017-11-14 | 2018-06-01 | 合肥国轩高科动力能源有限公司 | A kind of compound method for lithium ion battery |
| CN108054436A (en) * | 2017-12-13 | 2018-05-18 | 桑顿新能源科技有限公司 | Improve chemical conversion and the verification method of ferric phosphate lithium cell cycle performance |
| CN109742451A (en) * | 2019-01-23 | 2019-05-10 | 深圳新恒业电池科技有限公司 | The electrolyte filling method of column lithium ion battery |
| CN109742451B (en) * | 2019-01-23 | 2021-01-26 | 深圳新恒业电池科技有限公司 | Liquid injection method of cylindrical lithium ion battery |
| CN109921119A (en) * | 2019-03-08 | 2019-06-21 | 安徽泰能新能源科技有限公司 | A kind of cylindrical lithium ion battery method for pre-charging, production method and its obtained product |
| CN110247121A (en) * | 2019-06-25 | 2019-09-17 | 桑顿新能源科技有限公司 | The electrolyte wetting method of lithium ion battery and its lithium ion battery and electronic device being prepared |
| CN111554978A (en) * | 2020-03-20 | 2020-08-18 | 浙江南都电源动力股份有限公司 | Segmented negative pressure formation method of lithium ion battery |
| CN112751098A (en) * | 2021-01-25 | 2021-05-04 | 唐山航天万源科技有限公司 | Formation method of lithium iron phosphate battery |
| CN112820964A (en) * | 2021-01-25 | 2021-05-18 | 江西安驰新能源科技有限公司 | Aging and capacity grading method for lithium ion battery |
| CN114512702A (en) * | 2022-02-10 | 2022-05-17 | 天能电池集团(马鞍山)新能源科技有限公司 | Formation and post-treatment process for rapidly stabilizing open-circuit voltage of storage battery |
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Application publication date: 20160713 |
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