CN110233303A - The method for separating bad battery core in laser welding mould group - Google Patents
The method for separating bad battery core in laser welding mould group Download PDFInfo
- Publication number
- CN110233303A CN110233303A CN201810183553.3A CN201810183553A CN110233303A CN 110233303 A CN110233303 A CN 110233303A CN 201810183553 A CN201810183553 A CN 201810183553A CN 110233303 A CN110233303 A CN 110233303A
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- China
- Prior art keywords
- mould group
- battery
- battery core
- low temperature
- laser welding
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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
- H01M10/54—Reclaiming serviceable parts of waste accumulators
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/84—Recycling of batteries or fuel cells
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses the methods of bad battery core in separation laser welding mould group.It by being disassembled under lower low temperature to battery modules, is reduced using inside battery chemical substance activity under low temperature, and then is removed the bad battery core in mould group by using means such as cutting, burn into brittle failures.To recycle the excellent battery core in battery modules, and then echelon utilizes.
Description
Technical field
The present invention relates to lithium ion battery recycling and echelon to utilize field, and in particular to separation laser welding battery modules
In bad battery core method.
Background technique
As China widelys popularize New-energy electric vehicle, rapid growth situation, power is presented in power battery market
Battery manufacturer is enhancing production capacities recent years one after another.At the same time, along with a large amount of growths of power battery demand, power
The learies of battery are also constantly increasing.For example, Chinese lithium battery total output in 2015 is 47.13Gwh, wherein power battery
Yield is 16.9Gwh, accounting 36.07%；Consumption lithium battery yield is 23.69Gwh, and accounting 50.26%, energy-storage lithium battery yield is
1.73Gwh, accounting 3.67%.According to " dynamic lithium battery recycles industry research report " measuring and calculating of the publication of state's gold security a few days ago, to 2020
The demand of year dynamic lithium battery is up to 125Gwh, and learies are up to 32.2Gwh, and about 500,000 tons；By 2023, learies
It is up to 101Gwh, about 1,160,000 tons.If these old and useless batterys without recovery processing, are bound to that serious resource wave will be caused
Take and environmental pollution, seriously affects the low-carbon economy in China and the construction of friendly environment society.
Old and useless battery recovery technology in China's just gradually starts to walk at present, utilizes about echelon and also gradually brings into schedule.Current
Power battery assembly in, in order to reduce system heat production and simplify assembly technology, widely apply laser welding technology at present, and go out
In the battery modules of existing problem, problematic often only individual battery cores in parallel, most of battery core swash also in excellent condition
The dismounting of photocoagulation is more difficult, and removing a battery core group in parallel frequently can lead to the electrical fittings such as the busbar connector of entire mould group hair
The destruction of raw unrepairable, this is a greatly waste for top grade battery core.Even if also, battery modules are big by electricity
Part is given out light, and complementary energy voltage and electricity are still very big, directly dismantle entire battery modules, can be very easy to cause problem battery all
The excellent battery core on side is impaired, so cause to complete echelon utilize in battery core mould group integrally occur it is new unbalanced, in addition, directly
The risk of forcible entry is very big, is easy to cause to seriously threaten to the personal safety of operator and equipment etc..Therefore, it releases more
Safely and effectively mould group disassembling method seems especially urgent.
Summary of the invention
The present invention proposes bad battery core in separation laser welding mould group for defect involved in above-mentioned background technique
Method.The present invention is living using inside battery chemical substance under low temperature by disassembling under lower low temperature to battery modules
Property reduce, and then by using the means such as cutting, burn into brittle failure by mould group bad battery core dismounting.
The low temperature environment, can be at subzero 20 DEG C or even lower, it might even be possible to integrally be cooled down mould group using liquid nitrogen
To ultra low temperature.
The progress of the mechanical means such as milling machine, angle grinder can be used in the cutting means.
Corrosion means described in claim 1, main thought are to be directed to the laser welding being pre-designed using corrosive agent
Position is corroded in whole or in part, the more convenient dismantling of structure after causing corrosion.
The present invention is also included under low temperature, and by the means of brittle failure, laser welding portion is broken, such as many mould groups at
When group, copper cathode and aluminum anode need to be attached, regardless of being that laser directly welds or is by using copper aluminium
Compound material, the copper aluminum composite material that will lead to the coupling part under ultralow temperature significantly become fragile, are also easier to be removed.
Battery modules of the present invention, the battery modules can be lithium ion battery mould group, lithium-sulfur cell mould group
Etc. being related to the battery modules of laser welding.
The beneficial effects of the present invention are:
The present invention provides separation laser welding mould group in bad battery core method, by under lower low temperature to battery modules
It is disassembled, is reduced using inside battery chemical substance activity under low temperature, and then by using means such as cutting, burn into brittle failures
Bad battery core in mould group is removed, thus in the case where the excellent battery core in protection periphery as far as possible, it will be excellent in battery modules
Good battery core recycling, and then echelon utilizes.Meanwhile this method, due to carrying out at low temperature, inside battery chemical substance activity reduces,
The possibility for reducing battery catches fire, explosion avoids personal safety and equipment to operator and damages.Also, this method
Involved means are more flexible, and cost is more cheap, are highly susceptible to industrialization.
Specific embodiment
The present invention is specifically described below with reference to embodiment, but embodiments of the present invention are not limited only to this, herein
On the basis of slightly change and application range of the invention and application extension, all fall within the protection scope of the present invention.
Embodiment 1
1) required dismantling battery core (battery core unit in parallel) is marked first, is then integrally put into mould group in liquid nitrogen；
2) after placing a period of time, mould group is taken out, and is therewith rapidly cut off bad battery core unit using angle grinder.
Embodiment 2
1) required dismantling battery core (battery core unit in parallel) is marked first, mould group is integrally then put into cryogenic box (- 30
DEG C)；
2) after placing a period of time, mould group is taken out, and therewith using having adsorbed the foam (such as EVA foam) of corrosive agent to bad
Battery core coupling part is wiped, and after groove to be formed, disassembles battery core.
Embodiment 3
1) for there is the mould group of copper aluminum composite material, first required dismantling battery core (battery core unit in parallel) is marked, and with
Mould group is integrally put into liquid nitrogen afterwards；
2) after placing a period of time, mould group is taken out, gently pull coupling part or makes coupling part that slight deformation occur, it can
See that coupling part (such as tab) is voluntarily broken, completes dismantling battery core.
Claims (7)
1. the present invention relates to separation laser welding mould group in bad battery core method, by under lower low temperature to battery mould
Group is disassembled, and is reduced using inside battery chemical substance activity under low temperature, and then by using hands such as cutting, burn into brittle failures
Section removes the bad battery core in mould group.
2. battery modules described in claim 1, the battery modules can be lithium ion battery mould group, lithium-sulfur cell mould group
Etc. being related to the battery modules of laser welding.
3. low temperature environment described in claim 1, can be at subzero 20 DEG C or even lower, it might even be possible to using liquid nitrogen that mould group is whole
Body is cooled to ultra low temperature.
4. the progress of the mechanical means such as milling machine, angle grinder can be used in cutting means described in claim 1.
5. corrosion means described in claim 1, main thought is to be directed to the laser weld being pre-designed using corrosive agent
Position is corroded in whole or in part, the more convenient dismantling of structure after causing corrosion.
6. corrosive agent described in claim 5, generally 15%~28% HCl is added to that common viscous acid, cross-linked acid, become sticky acid
(such as VES become sticky acid), foamed acid, emulsified acid, on the spot spontaneous acid.
7. being also included under low temperature, leading in the method for the bad battery core in separation laser welding mould group as described in claim 1
The means for crossing brittle failure, laser welding portion is broken, and such as many mould groups need to carry out copper cathode and aluminum anode when in groups
Connection will lead to and connect under ultralow temperature regardless of being that laser directly welds or is the material by using Copper-Aluminum compound
The copper aluminum composite material of socket part point significantly becomes fragile, and is also easier to be removed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810183553.3A CN110233303A (en) | 2018-03-06 | 2018-03-06 | The method for separating bad battery core in laser welding mould group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810183553.3A CN110233303A (en) | 2018-03-06 | 2018-03-06 | The method for separating bad battery core in laser welding mould group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110233303A true CN110233303A (en) | 2019-09-13 |
Family
ID=67861799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810183553.3A Pending CN110233303A (en) | 2018-03-06 | 2018-03-06 | The method for separating bad battery core in laser welding mould group |
Country Status (1)
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| CN (1) | CN110233303A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111584780A (en) * | 2020-04-30 | 2020-08-25 | 东风汽车集团有限公司 | Protection plate and long module cutting method |
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| EP1041659A1 (en) * | 1998-09-28 | 2000-10-04 | Mitsubishi Heavy Industries, Ltd. | Method for crushing cell |
| CN101399388A (en) * | 2008-11-10 | 2009-04-01 | 天津理工大学 | Method and apparatus for breaking waste lithium ionic battery by using liquid nitrogen low temperature technique |
| CN103825065A (en) * | 2014-02-27 | 2014-05-28 | 北京工业大学 | Method for recovering and processing waste and old lithium ion battery electrolyte |
| CN203649600U (en) * | 2013-12-26 | 2014-06-18 | 国家电网公司 | Power battery cascade utilization battery pack desoldering device |
| JP2015026449A (en) * | 2013-07-24 | 2015-02-05 | 日立マクセル株式会社 | Lithium secondary battery device |
| CN105789727A (en) * | 2016-05-19 | 2016-07-20 | 株洲鼎端装备股份有限公司 | Cutting system for shell of waste lithium ion power battery pack |
| CN106299525A (en) * | 2016-08-31 | 2017-01-04 | 合肥国轩高科动力能源有限公司 | A kind of method separating and recovering waste lithium iron phosphate battery electrolyte |
| CN107086334A (en) * | 2017-03-14 | 2017-08-22 | 北京赛德美资源再利用研究院有限公司 | A kind of waste and old dynamic lithium battery automation splits the clean recovery method of full constituent |
-
2018
- 2018-03-06 CN CN201810183553.3A patent/CN110233303A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1041659A1 (en) * | 1998-09-28 | 2000-10-04 | Mitsubishi Heavy Industries, Ltd. | Method for crushing cell |
| US6524737B1 (en) * | 1998-09-28 | 2003-02-25 | Mitsubishi Heavy Industries, Ltd. | Method for crushing cell |
| CN101399388A (en) * | 2008-11-10 | 2009-04-01 | 天津理工大学 | Method and apparatus for breaking waste lithium ionic battery by using liquid nitrogen low temperature technique |
| JP2015026449A (en) * | 2013-07-24 | 2015-02-05 | 日立マクセル株式会社 | Lithium secondary battery device |
| CN203649600U (en) * | 2013-12-26 | 2014-06-18 | 国家电网公司 | Power battery cascade utilization battery pack desoldering device |
| CN103825065A (en) * | 2014-02-27 | 2014-05-28 | 北京工业大学 | Method for recovering and processing waste and old lithium ion battery electrolyte |
| CN105789727A (en) * | 2016-05-19 | 2016-07-20 | 株洲鼎端装备股份有限公司 | Cutting system for shell of waste lithium ion power battery pack |
| CN106299525A (en) * | 2016-08-31 | 2017-01-04 | 合肥国轩高科动力能源有限公司 | A kind of method separating and recovering waste lithium iron phosphate battery electrolyte |
| CN107086334A (en) * | 2017-03-14 | 2017-08-22 | 北京赛德美资源再利用研究院有限公司 | A kind of waste and old dynamic lithium battery automation splits the clean recovery method of full constituent |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111584780A (en) * | 2020-04-30 | 2020-08-25 | 东风汽车集团有限公司 | Protection plate and long module cutting method |
| CN111584780B (en) * | 2020-04-30 | 2021-03-23 | 东风汽车集团有限公司 | Protection plate and long module cutting method |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190913 |
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