CN105449286A - Soft package lithium-ion battery activation method - Google Patents
Soft package lithium-ion battery activation method Download PDFInfo
- Publication number
- CN105449286A CN105449286A CN201510457861.7A CN201510457861A CN105449286A CN 105449286 A CN105449286 A CN 105449286A CN 201510457861 A CN201510457861 A CN 201510457861A CN 105449286 A CN105449286 A CN 105449286A
- Authority
- CN
- China
- Prior art keywords
- soft bag
- lithium ionic
- ionic cell
- bag lithium
- activation method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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 invention discloses a soft package lithium-ion battery activation method, which comprises the following steps: (1) injecting electrolyte into an unsealed soft package lithium-ion battery, carrying out infiltration at 30-50 DEG C for 12-100 hours and then carrying out primary vacuum supply; (2) applying constant clamping pressure to two surfaces of the soft package lithium-ion battery and then carrying out precharging and formation, wherein the clamping pressure is 10-25Psi; and (3) ageing the formed battery after carrying out secondary vacuum supply, namely finishing the activation process. The soft package lithium-ion battery activation method is simple in process step and has great industrialized popularization and application value; the battery activation efficiency can be improved; internal gas of a battery core can be thoroughly removed; and the interface properties and the electrochemical properties of a pole piece in the battery core are greatly improved.
Description
Technical field
The present invention relates to technical field of lithium ion, especially relate to a kind of soft bag lithium ionic cell activation method.
Background technology
At present, the activating process of soft bag lithium ionic cell is all naked battery core is entered aluminum plastic film encapsulation, quantitatively inject electrolyte again, change into by after the leaving standstill of a period of time, its technical process is again: fluid injection → once infiltrate → once find time → secondary infiltration → preliminary filling → secondary finds time → changes into → and aging.This activating process needs to carry out infiltration repeatedly and charging to battery, and process is numerous and diverse, needs the manpower equipment of at substantial, and due to the existence of inside battery bubble, causing cannot disposable electricizing activation, causes activity cycle long, adds the cycle of the production of battery.
Such as, application publication number CN103762385A, the Chinese patent of Shen Qing Publication day 2014.04.30 discloses a kind of formation of Li-ion batteries method, it comprises the following steps: 1) be upwards immersed in by cell polar ear and be equipped with in the electrolytic bath of electrolyte, and the scope of electrolyte submergence battery core main body is no more than 4/5 of battery core height; 2) battery core is clamped preheating, clamping pressure is 0.05MPa-0.6MPa; 3) battery core after clamping preheating is continued to be immersed in electrolytic bath, electrolytic bath is sealed, vacuumizes line precharge of going forward side by side; And 4) clamping of 0.2MPa-1MPa power is applied to the battery core both sides completing precharge, and packaging electric core.The weak point of this technique is: this technique by applying pressure clamping to make battery core shape to battery core after completing preliminary filling, and battery core inside can exist gas after precharging, and the gas of battery core inside can not be removed completely, thus affect battery core performance.
Summary of the invention
The present invention is that the soft bag lithium ionic cell activation method in order to solve prior art can not make the gas of battery core inside remove completely, affect the problem of battery core performance, provide a kind of processing step simple, cell activation efficiency can be improved, and thoroughly can remove the soft bag lithium ionic cell activation method of battery core internal gas.
To achieve these goals, the present invention is by the following technical solutions:
A kind of soft bag lithium ionic cell activation method, comprises the following steps:
(1) in unsealed soft bag lithium ionic cell, inject electrolyte, infiltrate at 30 ~ 50 DEG C of temperature and to carry out first time after 12 ~ 100h and vacuumize.Infiltration temperature controls at 30 ~ 50 DEG C by the present invention, to make electrolyte permeate to electrode slice fast, equably, substantially increases the consistency of battery combination property.
(2) after soft bag lithium ionic cell two sides applies constant clamping pressure, carry out preliminary filling and change into, clamping pressure is 10 ~ 25Psi.This step is key point of the present invention, soft bag lithium ionic cell carries out preliminary filling and changes into when two sides uniform pressurization, not only make battery preliminary filling and change into and can carry out in same workshop section, decrease technological process, substantially increase activation efficiency, and core strueture can be made to keep smooth, stable, the most important thing is, carry out precharge when exerting pressure in two sides and change into, the gas that battery core inside produces can be continued to extrude, thus greatly improve interface and the chemical property of pole piece in battery core, the gas being simultaneously convenient to extrude thoroughly is removed in follow-up vacuum.
(3) battery after changing into being carried out second time vacuumizes rear aging, namely completes activation process.
As preferably, in step (1), temperature is 30 ~ 40 DEG C, infiltrating time 48 ~ 72h.
As preferably, in step (1), the injection rate of electrolyte is as the criterion with 3/4 ~ 4/5 of submergence battery core height.
As preferably, in step (2), clamping pressure is 12 ~ 18Psi.
As preferably, the vacuum degree that first time vacuumizes, second time vacuumizes is-60KPa ~-100KPa.
Therefore, the present invention has following beneficial effect:
(1) minimizing once infiltrates operation, and processing step is simple, can shorten the cell activation time;
(2) carry out preliminary filling when soft bag lithium ionic cell two sides uniform pressurization and change into, not only make battery preliminary filling and change into and can carry out in same workshop section, decrease technological process, substantially increase activation efficiency, and core strueture can be made to keep smooth, stable;
(3) carry out precharge when exerting pressure in two sides and change into, the gas that battery core inside produces can be continued to extrude, thus greatly improving interface and the chemical property of pole piece in battery core, the gas being simultaneously convenient to extrude thoroughly is removed in follow-up vacuum.
Embodiment
Below by embodiment, the present invention will be further described.
Method in following embodiment, if no special instructions, is this area conventional method.
Embodiment 1
A kind of soft bag lithium ionic cell activation method, comprises the following steps:
(1) in unsealed soft bag lithium ionic cell, inject electrolyte, carrying out first time infiltrate 100h at 50 DEG C of temperature after vacuumizes, and the injection rate of electrolyte is as the criterion with 4/5 of submergence battery core height, and the vacuum degree vacuumized is-100KPa.
(2) after soft bag lithium ionic cell two sides applies constant clamping pressure, carry out preliminary filling and change into, clamping pressure is 25Psi.
(3) battery after changing into being carried out second time vacuumizes rear aging, namely completes activation process, the vacuum degree-100KPa vacuumized.
Embodiment 2
A kind of soft bag lithium ionic cell activation method, comprises the following steps:
(1) in unsealed soft bag lithium ionic cell, inject electrolyte, carrying out first time infiltrate 12h at 30 DEG C of temperature after vacuumizes, and the injection rate of electrolyte is as the criterion with 3/4 of submergence battery core height, and the vacuum degree vacuumized is-60KPa.
(2) after soft bag lithium ionic cell two sides applies constant clamping pressure, carry out preliminary filling and change into, clamping pressure is 10.
(3) battery after changing into being carried out second time vacuumizes rear aging, namely completes activation process, the vacuum degree-60KPa vacuumized.
Embodiment 3
A kind of soft bag lithium ionic cell activation method, comprises the following steps:
(1) in unsealed soft bag lithium ionic cell, inject electrolyte, carrying out first time infiltrate 60h at 35 DEG C of temperature after vacuumizes, and the injection rate of electrolyte is as the criterion with 31/40 of submergence battery core height, and the vacuum degree vacuumized is-80KPa.
(2) after soft bag lithium ionic cell two sides applies constant clamping pressure, carry out preliminary filling and change into, clamping pressure is 15Psi.
(3) battery after changing into being carried out second time vacuumizes rear aging, namely completes activation process, the vacuum degree-80KPa vacuumized.
Embodiment 4
A kind of soft bag lithium ionic cell activation method, comprises the following steps:
(1) in unsealed soft bag lithium ionic cell, inject electrolyte, carrying out first time infiltrate 48h at 30 DEG C of temperature after vacuumizes, and the injection rate of electrolyte is as the criterion with 3/4 of submergence battery core height, and the vacuum degree vacuumized is-60KPaKPa.
(2) after soft bag lithium ionic cell two sides applies constant clamping pressure, carry out preliminary filling and change into, clamping pressure is 10Psi.
(3) battery after changing into being carried out second time vacuumizes rear aging, namely completes activation process, the vacuum degree-60KPaKPa vacuumized.
Embodiment 5
A kind of soft bag lithium ionic cell activation method, comprises the following steps:
(1) in unsealed soft bag lithium ionic cell, inject electrolyte, carrying out first time infiltrate 72h at 50 DEG C of temperature after vacuumizes, and the injection rate of electrolyte is as the criterion with 4/5 of submergence battery core height, and the vacuum degree vacuumized is-100KPa.
(2) after soft bag lithium ionic cell two sides applies constant clamping pressure, carry out preliminary filling and change into, clamping pressure is 18Psi.
(3) battery after changing into being carried out second time vacuumizes rear aging, namely completes activation process, the vacuum degree-100KPa vacuumized.
The present invention is applicable to the preparation process of various types of soft bag lithium ionic cell, processing step is simple, while guarantee battery performance, significantly improve activation efficiency, and the OEE(overall equipment efficiency.comprehensive efficiency of equipment of manual charging/discharging apparatus can be improved) 5 ~ 10 percentage points, and the present invention thoroughly can remove the gas of battery core inside, greatly improve interface and the chemical property of pole piece in battery core, compared with traditional Conventional activation technique, battery capacity can improve 3 ~ 5%, therefore has great industrial application and is worth.
Above-described embodiment is one of the present invention preferably scheme, not does any pro forma restriction to the present invention, also has other variant and remodeling under the prerequisite not exceeding the technical scheme described in claim.
Claims (5)
1. a soft bag lithium ionic cell activation method, is characterized in that, comprises the following steps:
(1) in unsealed soft bag lithium ionic cell, inject electrolyte, infiltrate at 30 ~ 50 DEG C of temperature and to carry out first time after 12 ~ 100h and vacuumize;
(2) after soft bag lithium ionic cell two sides applies constant clamping pressure, carry out preliminary filling and change into, clamping pressure is 10 ~ 25Psi;
(3) battery after changing into being carried out second time vacuumizes rear aging, namely completes activation process.
2. a kind of soft bag lithium ionic cell activation method according to claim 1, is characterized in that, in step (1), temperature is 30 ~ 40 DEG C, infiltrating time 48 ~ 72h.
3. a kind of soft bag lithium ionic cell activation method according to claim 1, is characterized in that, in step (1), the injection rate of electrolyte is as the criterion with 3/4 ~ 4/5 of submergence battery core height.
4. a kind of soft bag lithium ionic cell activation method according to claim 1, is characterized in that, in step (2), clamping pressure is 12 ~ 18Psi.
5. a kind of soft bag lithium ionic cell activation method according to claim 1, is characterized in that, the vacuum degree that first time vacuumizes, second time vacuumizes is-60KPa ~-100KPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510457861.7A CN105449286A (en) | 2015-07-30 | 2015-07-30 | Soft package lithium-ion battery activation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510457861.7A CN105449286A (en) | 2015-07-30 | 2015-07-30 | Soft package lithium-ion battery activation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105449286A true CN105449286A (en) | 2016-03-30 |
Family
ID=55559237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510457861.7A Pending CN105449286A (en) | 2015-07-30 | 2015-07-30 | Soft package lithium-ion battery activation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105449286A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107994261A (en) * | 2017-11-27 | 2018-05-04 | 覃晓捷 | A kind of soft bag lithium ionic cell production method |
| CN108023129A (en) * | 2016-10-30 | 2018-05-11 | 深圳格林德能源有限公司 | A kind of polymer Li-ion battery process for rapid activation |
| CN108598581A (en) * | 2018-04-02 | 2018-09-28 | 浙江衡远新能源科技有限公司 | A kind of chemical synthesizing method of soft bag lithium ionic cell |
| CN109148820A (en) * | 2018-09-25 | 2019-01-04 | 中国科学院过程工程研究所 | A kind of preparation method and its high-energy density soft bag lithium ionic cell of thickness pole piece |
| CN109742455A (en) * | 2018-12-24 | 2019-05-10 | 深圳市量能科技有限公司 | A kind of production method of lithium ion battery |
| CN110165318A (en) * | 2019-06-06 | 2019-08-23 | 合肥众禾动力新能源科技有限公司 | A kind of method for pre-charging improving analysis lithium |
| CN113193236A (en) * | 2021-05-06 | 2021-07-30 | 合肥国轩高科动力能源有限公司 | Infiltration formation method of lithium ion battery |
| CN114361598A (en) * | 2021-12-04 | 2022-04-15 | 万向一二三股份公司 | Unequal-wall double-pit shell punching method for external package of soft package battery and battery thereof |
| 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 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202094235U (en) * | 2011-05-24 | 2011-12-28 | 珠海市鹏辉电池有限公司 | Flexible packaging lithium ion battery formation clamp |
| CN102368571A (en) * | 2011-09-05 | 2012-03-07 | 东莞新能源科技有限公司 | Precharge method of lithium ion batteries |
| CN103762385A (en) * | 2014-01-26 | 2014-04-30 | 宁德新能源科技有限公司 | Lithium battery formation method |
| CN103855430A (en) * | 2012-12-06 | 2014-06-11 | 上海比亚迪有限公司 | Preparation method of lithium ion secondary battery |
| KR20150015303A (en) * | 2013-07-31 | 2015-02-10 | 주식회사 엘지화학 | Lithium Secondary Battery Preparation Method Pressurizing the Battery during Vitalization Process |
| CN104577191A (en) * | 2014-12-30 | 2015-04-29 | 东莞市西特新能源科技有限公司 | Polymer lithium-ion battery and preparation method thereof |
-
2015
- 2015-07-30 CN CN201510457861.7A patent/CN105449286A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202094235U (en) * | 2011-05-24 | 2011-12-28 | 珠海市鹏辉电池有限公司 | Flexible packaging lithium ion battery formation clamp |
| CN102368571A (en) * | 2011-09-05 | 2012-03-07 | 东莞新能源科技有限公司 | Precharge method of lithium ion batteries |
| CN103855430A (en) * | 2012-12-06 | 2014-06-11 | 上海比亚迪有限公司 | Preparation method of lithium ion secondary battery |
| KR20150015303A (en) * | 2013-07-31 | 2015-02-10 | 주식회사 엘지화학 | Lithium Secondary Battery Preparation Method Pressurizing the Battery during Vitalization Process |
| CN103762385A (en) * | 2014-01-26 | 2014-04-30 | 宁德新能源科技有限公司 | Lithium battery formation method |
| CN104577191A (en) * | 2014-12-30 | 2015-04-29 | 东莞市西特新能源科技有限公司 | Polymer lithium-ion battery and preparation method thereof |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108023129A (en) * | 2016-10-30 | 2018-05-11 | 深圳格林德能源有限公司 | A kind of polymer Li-ion battery process for rapid activation |
| 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 |
| 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 |
| CN107994261A (en) * | 2017-11-27 | 2018-05-04 | 覃晓捷 | A kind of soft bag lithium ionic cell production method |
| CN108598581A (en) * | 2018-04-02 | 2018-09-28 | 浙江衡远新能源科技有限公司 | A kind of chemical synthesizing method of soft bag lithium ionic cell |
| CN108598581B (en) * | 2018-04-02 | 2020-04-24 | 浙江衡远新能源科技有限公司 | Formation method of soft package lithium ion battery |
| CN109148820A (en) * | 2018-09-25 | 2019-01-04 | 中国科学院过程工程研究所 | A kind of preparation method and its high-energy density soft bag lithium ionic cell of thickness pole piece |
| CN109742455B (en) * | 2018-12-24 | 2022-01-18 | 深圳市量能科技有限公司 | Method for manufacturing lithium ion battery |
| CN109742455A (en) * | 2018-12-24 | 2019-05-10 | 深圳市量能科技有限公司 | A kind of production method of lithium ion battery |
| CN110165318A (en) * | 2019-06-06 | 2019-08-23 | 合肥众禾动力新能源科技有限公司 | A kind of method for pre-charging improving analysis lithium |
| CN110165318B (en) * | 2019-06-06 | 2022-02-18 | 合肥众禾动力新能源科技有限公司 | Pre-charging method for improving lithium separation |
| CN113193236A (en) * | 2021-05-06 | 2021-07-30 | 合肥国轩高科动力能源有限公司 | Infiltration formation method of lithium ion battery |
| CN114361598A (en) * | 2021-12-04 | 2022-04-15 | 万向一二三股份公司 | Unequal-wall double-pit shell punching method for external package of soft package battery and battery thereof |
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105449286A (en) | Soft package lithium-ion battery activation method | |
| CN106654384B (en) | A kind of method and apparatus of soft package lithium battery secondary exhaust and supplement electrolyte | |
| CN105406130A (en) | Soft package lithium-ion battery formation method | |
| CN103872381B (en) | A kind of fluid injection of electrokinetic cell leaves standstill method | |
| WO2010105565A1 (en) | Method for manufacturing lithium ion battery and package bag of lithium ion battery | |
| CN104485482A (en) | Manufacturing method for high-voltage soft-package lithium-ion battery | |
| CN107464955A (en) | A kind of electrolyte wetting method of soft bag lithium ionic cell | |
| CN103378372A (en) | Method for placing and aging lithium ion battery | |
| CN109802089B (en) | Liquid injection and formation method for ultra-large-capacity single battery | |
| CN107546419A (en) | Method is shelved after a kind of Soft Roll lamination lithium-ion-power cell fluid injection | |
| CN103762385A (en) | Lithium battery formation method | |
| CN110896153A (en) | Method for improving electrolyte infiltration of soft package lithium ion battery | |
| CN106299481B (en) | A kind of encapsulation of soft bag lithium ionic cell, drawing liquid forming method | |
| CN108172921A (en) | The air-exhaust method of soft-package battery | |
| CN105489939B (en) | A kind of method for preventing aluminum plastic film flanging deformation | |
| CN102593401B (en) | Flexible package lithium ion battery with air guide device and method for preparing flexible package lithium ion battery | |
| CN110247121B (en) | Electrolyte infiltration method of lithium ion battery, lithium ion battery prepared by using electrolyte infiltration method and electronic device | |
| CN108023129A (en) | A kind of polymer Li-ion battery process for rapid activation | |
| CN110970666A (en) | Secondary sealing degassing method for soft package lithium ion battery | |
| CN109860722A (en) | A kind of electrolyte method for implanting of lithium battery | |
| CN104393348A (en) | Preparation method of laminated flexible-package lithium-ion battery | |
| CN205248358U (en) | Structure is drawn forth to lithium ion battery cathode terminal | |
| KR102264674B1 (en) | Electrolyte Injection Method Using Vacuum | |
| CN106653372A (en) | Treatment method for improving water resistance of electrode foil for aluminum electrolytic capacitor | |
| KR102264683B1 (en) | Electrolyte Injection Method Using Vacuum |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 311215 Xiaoshan economic and Technological Development Zone, Zhejiang District, No. two road, building No. 855, No. Applicant after: Wanxiang 123 Co Ltd Applicant after: Wanxiang Group Corporation Address before: 311215 Xiaoshan economic and Technological Development Zone, Zhejiang, No. two road, building No. 118, No. Applicant before: Universal A 1 System Co., Ltd Applicant before: Wanxiang Group Corporation |
|
| COR | Change of bibliographic data | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160330 |
|
| RJ01 | Rejection of invention patent application after publication |