CN103682458A - Method for solving residue of internal gas and electrolyte in formation of hard-shell lithium battery - Google Patents
Method for solving residue of internal gas and electrolyte in formation of hard-shell lithium battery Download PDFInfo
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- CN103682458A CN103682458A CN201310670003.1A CN201310670003A CN103682458A CN 103682458 A CN103682458 A CN 103682458A CN 201310670003 A CN201310670003 A CN 201310670003A CN 103682458 A CN103682458 A CN 103682458A
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- battery
- positioning mechanism
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- electrolyte
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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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
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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
Abstract
The invention belongs to the technical field of a lithium battery, and particularly relates to a method for solving the residue of internal gas and electrolyte in the formation of a hard-shell lithium battery, which mainly solves the problems that the surplus electrolyte inside the battery cannot be discharged when the hard-shell lithium ion battery discharges the gas and the property and the service life of the battery are influenced. The technical scheme is as follows: the method for solving the residue of the internal gas and electrolyte in the formation of the hard-shell lithium battery comprises the following steps of (1) placing the hard-shell lithium battery on a battery positioning mechanism, adjusting the negative pressure P1 and the positive pressure P2 on the battery positioning mechanism, the time T1 of a vacuum controller and the time T2 of a nitrogen controller; (2) turning on a switch of the battery positioning mechanism; (3) turning on a starting switch of the battery positioning mechanism; and (4) ascending a battery pressure head, taking out the battery, and installing a battery explosion-proof valve by an operator when the pressure retention time T4 is reached. The method has the advantages of stable property and convenience in application.
Description
Technical field
The invention belongs to technical field of lithium batteries, be specifically related to a kind of internal gas and the residual method of electrolyte while solving duricrust formation of Li-ion batteries.
Background technology
At present, mainly in power and energy storage system use large capacity lithium ion battery with hard shell, its reason is that lithium ion battery has that energy density is high, the life-span long and pollute the advantages such as little.But in actual production process, find that the lithium ion battery with hard shell gas that inside battery produces after changing into is more, separately have unnecessary electrolyte residual, this situation has a strong impact on the performance of battery.While changing into for processing duricrust battery now, produce gas methods, when changing into, use syringe to be inserted on battery anti-explosion valve when changing into the gas that while changing into discharge changes into generation, the portion gas producing when but this method can only be discharged battery and changed into, can not discharge the unnecessary electrolyte of inside battery, and adopt syringe to be communicated with atmosphere, moisture enters inside battery, can affect battery performance and life-span.
Summary of the invention
The present invention can not discharge the unnecessary electrolyte of inside battery mainly for lithium ion battery with hard shell when the emission gases, and adopt syringe to be communicated with atmosphere, moisture enters inside battery, can affect the problem in battery performance and life-span, a kind of internal gas and the residual method of electrolyte while solving duricrust formation of Li-ion batteries are provided.
The present invention addresses the above problem the technical scheme of taking to be:
A kind of while solving duricrust formation of Li-ion batteries internal gas and the residual method of electrolyte comprise the following steps:
(1) duricrust lithium battery is placed on cell positioning mechanism, the note nitrogen mouth of cell positioning mechanism and the liquid injection port of vacuum head and duricrust lithium battery are joined, the time T 1 of the negative pressure P1 on regulating cell detent mechanism, malleation P2, vacuum controller, the time T 2 of nitrogen controller;
(2) open battery main switch, vacuum controller switch and the nitrogen controller switches of cell positioning mechanism;
(3) open the starting switch of cell positioning mechanism, cell positioning mechanism starts battery vacuum-pumping T1, when the pressure in battery is P1, automatic pressure-maintaining, the time is T3, starts afterwards inflated with nitrogen to pressure while being P2, pressurize again, the time is T4, makes nitrogen fill the whole cavity of battery;
(4) when reaching again dwell time T4, battery pressure head rises, and operating personnel take out battery, load onto battery anti-explosion valve;
Wherein said P1 is-70～90kpa; P2 is 10～20kpa; T1 is 10～30S; T2 is 2～6S; T3 is 15～25S; T4 is 3～5S.
The present invention adopts technique scheme, by vacuumizing, uses inside battery to form negative pressure, the gas of inside battery and electrolyte is extracted out, and then filled a small amount of nitrogen, and battery is protected, and improves battery performance.Therefore, compared with prior art, the present invention has following beneficial effect: 1, discharge all gas that battery produces when changing into, make inside battery in stable state; 2, reduce gap between battery pole piece, shorten lithium ion by distance, strengthen the charge-discharge performance of battery; 3, discharge the unnecessary electrolyte of inside battery, avoid electrolyte too much to affect the energy density of battery and too much side reaction generation.
Embodiment
Embodiment 1
A kind of while solving duricrust formation of Li-ion batteries internal gas and the residual method of electrolyte comprise the following steps:
(1) duricrust lithium battery is placed on cell positioning mechanism, the note nitrogen mouth of cell positioning mechanism and the liquid injection port of vacuum head and duricrust lithium battery are joined, the time T 1 of the negative pressure P1 on regulating cell detent mechanism, malleation P2, vacuum controller, the time T 2 of nitrogen controller;
(2) open battery main switch, vacuum controller switch and the nitrogen controller switches of cell positioning mechanism;
(3) open the starting switch of cell positioning mechanism, cell positioning mechanism starts battery vacuum-pumping T1, when the pressure in battery is P1, automatic pressure-maintaining, the time is T3, starts afterwards inflated with nitrogen to pressure while being P2, pressurize again, the time is T4, makes nitrogen fill the whole cavity of battery;
(4) when reaching again dwell time T4, battery pressure head rises, and operating personnel take out battery, load onto battery anti-explosion valve;
Wherein said P1 is-80kpa; P2 is 15kpa; T1 is 20S; T2 is 4S; T3 is 20S; T4 is 4S.
In the present embodiment, the value of P1, P2, T1, T2, T3 and T4 can be-70～90kpa at P1; P2 is 10～20kpa; T1 is 10～30S; T2 is 2～6S; T3 is 15～25S; T4 is that 3～5S scope is combination in any.
Claims (1)
1. the residual method of internal gas and electrolyte while solving duricrust formation of Li-ion batteries, is characterized in that comprising the following steps:
(1) duricrust lithium battery is placed on cell positioning mechanism, the note nitrogen mouth of cell positioning mechanism and the liquid injection port of vacuum head and duricrust lithium battery are joined, the time T 1 of the negative pressure P1 on regulating cell detent mechanism, malleation P2, vacuum controller, the time T 2 of nitrogen controller;
(2) open battery main switch, vacuum controller switch and the nitrogen controller switches of cell positioning mechanism;
(3) open the starting switch of cell positioning mechanism, cell positioning mechanism starts battery vacuum-pumping T1, when the pressure in battery is P1, automatic pressure-maintaining, the time is T3, starts afterwards inflated with nitrogen to pressure while being P2, pressurize again, the time is T4, makes nitrogen fill the whole cavity of battery;
(4) when reaching again dwell time T4, battery pressure head rises, and operating personnel take out battery, load onto battery anti-explosion valve;
Wherein said P1 is-70～90kpa; P2 is 10～20kpa; T1 is 10～30S; T2 is 2～6S; T3 is 15～25S; T4 is 3～5S.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310670003.1A CN103682458B (en) | 2013-12-11 | 2013-12-11 | A kind of internal gas and electrolyte residual method when solving duricrust formation of Li-ion batteries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310670003.1A CN103682458B (en) | 2013-12-11 | 2013-12-11 | A kind of internal gas and electrolyte residual method when solving duricrust formation of Li-ion batteries |
Publications (2)
| Publication Number | Publication Date |
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| CN103682458A true CN103682458A (en) | 2014-03-26 |
| CN103682458B CN103682458B (en) | 2016-01-20 |
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| CN201310670003.1A Expired - Fee Related CN103682458B (en) | 2013-12-11 | 2013-12-11 | A kind of internal gas and electrolyte residual method when solving duricrust formation of Li-ion batteries |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106505250A (en) * | 2016-11-10 | 2017-03-15 | 深圳拓邦股份有限公司 | Suppress the method for Battery formation aerogenesis and the lithium ion battery being melted into using the method |
| CN107634268A (en) * | 2017-09-13 | 2018-01-26 | 中航锂电（洛阳）有限公司 | A kind of negative pressure formation method of lithium ion battery |
| CN108155421A (en) * | 2017-12-29 | 2018-06-12 | 珠海泰坦新动力电子有限公司 | Formation of Li-ion batteries takes out negative pressure technique |
| CN108598578A (en) * | 2018-02-26 | 2018-09-28 | 合肥国轩高科动力能源有限公司 | A kind of anti-liquid-jet device of lithium ion battery chemical conversion |
| CN112652830A (en) * | 2020-12-30 | 2021-04-13 | 骆驼集团武汉新能源科技有限公司 | Exhaust method for improving interface of aluminum shell lithium ion battery pole piece |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101286578A (en) * | 2008-05-23 | 2008-10-15 | 清华大学 | Forming method of lithium ion secondary battery using vacuum system |
| CN101887994A (en) * | 2009-05-15 | 2010-11-17 | 深圳市鸿德电池有限公司 | Vacuum formation method of lithium ion battery |
| CN101908647A (en) * | 2010-07-15 | 2010-12-08 | 广东省惠州市泰格威电池有限公司 | Negative pressure formation method of lithium ion battery and battery thereof |
| CN102117936A (en) * | 2009-12-30 | 2011-07-06 | 江苏富朗特新能源有限公司 | Method for forming flexibly packaged lithium ion battery |
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2013
- 2013-12-11 CN CN201310670003.1A patent/CN103682458B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101286578A (en) * | 2008-05-23 | 2008-10-15 | 清华大学 | Forming method of lithium ion secondary battery using vacuum system |
| CN101887994A (en) * | 2009-05-15 | 2010-11-17 | 深圳市鸿德电池有限公司 | Vacuum formation method of lithium ion battery |
| CN102117936A (en) * | 2009-12-30 | 2011-07-06 | 江苏富朗特新能源有限公司 | Method for forming flexibly packaged lithium ion battery |
| CN101908647A (en) * | 2010-07-15 | 2010-12-08 | 广东省惠州市泰格威电池有限公司 | Negative pressure formation method of lithium ion battery and battery thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106505250A (en) * | 2016-11-10 | 2017-03-15 | 深圳拓邦股份有限公司 | Suppress the method for Battery formation aerogenesis and the lithium ion battery being melted into using the method |
| CN107634268A (en) * | 2017-09-13 | 2018-01-26 | 中航锂电（洛阳）有限公司 | A kind of negative pressure formation method of lithium ion battery |
| CN108155421A (en) * | 2017-12-29 | 2018-06-12 | 珠海泰坦新动力电子有限公司 | Formation of Li-ion batteries takes out negative pressure technique |
| CN108598578A (en) * | 2018-02-26 | 2018-09-28 | 合肥国轩高科动力能源有限公司 | A kind of anti-liquid-jet device of lithium ion battery chemical conversion |
| CN112652830A (en) * | 2020-12-30 | 2021-04-13 | 骆驼集团武汉新能源科技有限公司 | Exhaust method for improving interface of aluminum shell lithium ion battery pole piece |
| CN112652830B (en) * | 2020-12-30 | 2022-09-13 | 骆驼集团新能源电池有限公司 | Exhaust method for improving interface of aluminum shell lithium ion battery pole piece |
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| CN103682458B (en) | 2016-01-20 |
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