CN108777332A - It is a kind of that pretreated method being carried out to waste and old lithium ion battery using dry ice - Google Patents
It is a kind of that pretreated method being carried out to waste and old lithium ion battery using dry ice Download PDFInfo
- Publication number
- CN108777332A CN108777332A CN201810550183.2A CN201810550183A CN108777332A CN 108777332 A CN108777332 A CN 108777332A CN 201810550183 A CN201810550183 A CN 201810550183A CN 108777332 A CN108777332 A CN 108777332A
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- Prior art keywords
- dry ice
- waste
- lithium ion
- ion battery
- old lithium
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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
Abstract
Pretreated method being carried out to waste and old lithium ion battery using dry ice the invention discloses a kind of, the principle absorbed heat using dry ice sublimation, lithium-ion-power cell is cooled down and is freezed so that inside battery electrolyte can not be reacted, and then carry out break process and physical separation to battery.The present invention can directly save the discharge treatment in pre-treatment step, reduce the waste of resource during infusion method, while also avoiding the generation of danger during electric-resistivity method, unspent dry ice recycles, the carbon dioxide gas of heat absorption distillation is also recovered, it re-compresses and is continued with as dry ice, the target for realizing resource pollution-freeization and recycling.
Description
Technical field：
The present invention be it is a kind of pretreated method and necessary instrument being carried out to waste and old lithium ion battery using dry ice, specifically relate to
And arrive a kind of some pretreated operating methods of waste lithium cell.
Background technology：
With the scarcity of the energy and the stringent control of whole society's environmental pollution, power car, hybrid electric vehicle, which have become, works as
One bright spot of modern car industry, and which kind of battery power it uses, and also becomes the task of top priority that must be chosen in 2013.
Plumbic acid, ni-mh, nickel-cadmium cell quality are big, and energy density is small, and environment protecting is poor；Although liquid lithium ionic cell energy density is big,
But safety is poor, and management of charging and discharging also becomes new problem；Fuel cell is of high cost, short life, and exchange media catalyst has much room for improvement
It improves, does not have commercial value also within 2013.The problems such as other kinds of fuel cell is also needed to improve and be improved, industrialization needs
It solves.So polymer Li-ion battery in 2013 has become the new lover to show one's talent.However the lithium ion largely to put goods on the market
Inevitably the recycling problem after arrival battery end of life, domestic waste and old lithium ion battery recycling exist power battery
All various aspects such as law, channel, method and process and cost there are problem, this mean that it is necessary to establish suitable waste and old lithium from
Sub- power battery processing scheme.
To applying waste lithium ionic power battery taking back and process, it is therefore an objective to efficiently separate battery each component, extraction purification battery
In organic metal, while reducing pollution of the waste to environment.By summarizing to documents and materials, summarize waste and old lithium from
Sub- power battery removal process is broadly divided into following three steps：Pretreatment, after-treatment and advanced treating.Pretreatment point three
Step：Deep discharge process, broken and physical separation process.Deep discharge is there are two types of method ----infusion method and electric-resistivity method, and two
Kind mode is the method being most widely used in waste and old lithium ion battery deep discharge at present, but still remains respective deficiency
Place.Infusion method required time in discharge process is very long, and can cause the loss of the solution of a large amount of electrolyte.And
Electric-resistivity method can be assembled a large amount of heat in the inside battery short time, lead to battery explosion during electric discharge.
Invention content：
Technical problem to be solved by the present invention lies in provide a kind of to locate waste and old lithium ion battery in advance using dry ice
The method of reason.
The technical problems to be solved by the invention are realized using technical solution below：
It is a kind of that pretreated method being carried out to waste and old lithium ion battery using dry ice, it is characterised in that：
It is spare to collect aluminum hull/box hat waste and old lithium ion battery；
Open transport charged, and be placed in waste and old lithium ion battery is neat successively in transmission belt, conveyer belt is with 0.5m/
The speed of min is moved；
When first piece of battery reaches dry ice liberation port bottom, the power switch of dry ice release device, release are opened
Dry ice so that dry ice covers battery；
It is moved with the speed of 0.5m/min in transporting tape channel by dry ice-covered waste lithium cell, after freezing,
Battery is transported on vibrating screen and recycles remaining dry ice, is sent to crushing plant later.
One arc seal closure is installed, seal closure disposes a dry ice release dress close to conveyer belt entrance above conveyer belt
It sets, beneath battery is covered with dry ice.
Dry ice release device includes the dry ice storage case of cuboid, and side is equipped with hydraulic cylinder, hydraulic cylinder in dry ice storage case
It withstanding on movable plate, the dry ice storage case other side is opening, and opening is equipped with air-cooler, and dry ice storage case stage casing is equipped with notch,
Notch is equipped with rotation cutting plate by the side of hydraulic cylinder, and the axis for rotating cutting plate passes through the bearing below dry ice storage case to connect motor.
The notch is equipped with web plate by air-cooler side, and the mesh of web plate is downward.
It is equipped with dry ice feed inlet, dry ice feed inlet unicom dry ice storage case inner space above the dry ice storage case.
The mouth side of the dry ice feed inlet is inlaid with magnet ring, and movable plate side is equipped with baffle, magnet ring is placed on baffle,
The magnet ring placed on baffle is closed by sealing plate by empty in magnet ring.
The beneficial effects of the invention are as follows：
It is an advantage of the current invention that the physical property absorbed heat using dry ice sublimation, directly cools down to waste and old lithium ion battery
Freezing so that the electrolyte of inside battery is frozen and can not be reacted in the short time, therefore the battery freezed can be direct
It skips discharge step and carries out break process.The waste and dangerous generation of resource in overshoot are avoided, is produced after dry ice sublimation
Raw carbon dioxide can both be handled with buck, and can also get up to re-compress is made dry ice, realize the regeneration of resource and whole nothing
The target of pollution；
Hydraulic cylinder is controlled according to the number of batteries situation on conveyer belt, reduction dry ice, which is fallen on blanking bar, to be caused to waste, and is rotated
Cutter crushes dry ice discontinuity, is fallen compared with monoblock, and distillation effect is more preferable, and downward by mesh, what is scaled off is dry for air-cooler wind direction
Ice, by notch, will not absorb heat distillation, the waste during reducing；
When movable plate is located on the right side of dry ice feed inlet, dry ice quickly enters dry ice storage case, after filling, starts to push movable plate
Work, movable plate after dry ice feed inlet, quickly inhale by the magnet ring of the magnet ring and dry ice feed inlet on baffle on the right side of movable plate
It is attached, feed inlet is blocked, when adding dry ice, movable plate and baffle take away magnet ring, open feed inlet, block up automatically, avoid dry ice
Into movable plate back space.
Description of the drawings
Fig. 1 is the dry ice release device hydraulic cylinder retracted state structural schematic diagram of the present invention；
Fig. 2 is the dry ice release device hydraulic cylinder unfolded state structural schematic diagram of the present invention.
Specific implementation mode：
In order to make the technical means, the creative features, the aims and the efficiencies achieved by the present invention be easy to understand, tie below
Specific embodiment is closed, the present invention is further explained.
It is a kind of that pretreated method being carried out to waste and old lithium ion battery using dry ice,
It is spare to collect aluminum hull/box hat waste and old lithium ion battery；
Open transport charged, and be placed in waste and old lithium ion battery is neat successively in transmission belt, conveyer belt is with 0.5m/
The speed of min is moved；
When first piece of battery reaches dry ice liberation port bottom, the power switch of dry ice release device, release are opened
Dry ice so that dry ice covers battery；
It is moved with the speed of 0.5m/min in transporting tape channel by dry ice-covered waste lithium cell, after freezing,
Battery is transported on vibrating screen and recycles remaining dry ice, is sent to crushing plant later.
One arc seal closure is installed, seal closure disposes a dry ice release dress close to conveyer belt entrance above conveyer belt
It sets, beneath battery is covered with dry ice.
Such as Fig. 1-2：Dry ice release device includes the dry ice storage case 1 of cuboid, and side is equipped with hydraulic pressure in dry ice storage case
Cylinder 2, hydraulic cylinder are withstood on movable plate 3, and the dry ice storage case other side is opening, and opening is equipped with air-cooler 4, in dry ice storage case
Section is equipped with notch 5, and notch is equipped with rotation cutting plate 6 by the side of hydraulic cylinder, and the axis for rotating cutting plate passes through below dry ice storage case
Bearing 7 connects motor 8.
Notch is equipped with web plate 9 by air-cooler side, and the mesh of web plate is downward.
Dry ice feed inlet 10, dry ice feed inlet unicom dry ice storage case inner space are equipped with above dry ice storage case.
The mouth side of dry ice feed inlet is inlaid with magnet ring 11, and movable plate side is equipped with baffle 12, magnet ring is placed on baffle, keeps off
The magnet ring placed on plate is closed by sealing plate 13 by empty in magnet ring.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (6)
1. a kind of carrying out pretreated method using dry ice to waste and old lithium ion battery, it is characterised in that：
It is spare to collect aluminum hull/box hat waste and old lithium ion battery；
Open transport charged, and be placed in waste and old lithium ion battery is neat successively in transmission belt, conveyer belt is with 0.5m/min
Speed moved；
When first piece of battery reaches dry ice liberation port bottom, the power switch of dry ice release device is opened, discharges dry ice,
So that dry ice covers battery；
It is moved with the speed of 0.5m/min in transporting tape channel by dry ice-covered waste lithium cell, it, will be electric after freezing
Pond, which is transported on vibrating screen, recycles remaining dry ice, is sent to crushing plant later.
A kind of pretreated method, feature being carried out to waste and old lithium ion battery using dry ice 2. according to claim 1
It is：One arc seal closure is installed, seal closure disposes a dry ice to release close to conveyer belt entrance above the conveyer belt
Device is put, beneath battery is covered with dry ice.
A kind of pretreated method, feature being carried out to waste and old lithium ion battery using dry ice 3. according to claim 1
It is：The dry ice release device includes the dry ice storage case of cuboid, and side is equipped with hydraulic cylinder, hydraulic pressure in dry ice storage case
Cylinder is withstood on movable plate, and the dry ice storage case other side is opening, and opening is equipped with air-cooler, and dry ice storage case stage casing, which is equipped with, to be lacked
Mouthful, notch is equipped with rotation cutting plate by the side of hydraulic cylinder, rotates bearing connection electricity of the axis of cutting plate below dry ice storage case
Machine.
A kind of pretreated method, feature being carried out to waste and old lithium ion battery using dry ice 4. according to claim 3
It is：The notch is equipped with web plate by air-cooler side, and the mesh of web plate is downward.
A kind of pretreated method, feature being carried out to waste and old lithium ion battery using dry ice 5. according to claim 3
It is：It is equipped with dry ice feed inlet, dry ice feed inlet unicom dry ice storage case inner space above the dry ice storage case.
A kind of pretreated method, feature being carried out to waste and old lithium ion battery using dry ice 6. according to claim 5
It is：The mouth side of the dry ice feed inlet is inlaid with magnet ring, and movable plate side is equipped with baffle, magnet ring is placed on baffle, keeps off
The magnet ring placed on plate is closed by sealing plate by empty in magnet ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810550183.2A CN108777332B (en) | 2018-05-31 | 2018-05-31 | Method for pretreating waste lithium ion battery by using dry ice |
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|---|---|---|---|
| CN201810550183.2A CN108777332B (en) | 2018-05-31 | 2018-05-31 | Method for pretreating waste lithium ion battery by using dry ice |
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| CN108777332A true CN108777332A (en) | 2018-11-09 |
| CN108777332B CN108777332B (en) | 2020-07-24 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109361033A (en) * | 2018-12-01 | 2019-02-19 | 贵州中伟资源循环产业发展有限公司 | One kind being used for lithium battery electrolytes cold type tilting device |
| CN109361032A (en) * | 2018-12-01 | 2019-02-19 | 贵州中伟资源循环产业发展有限公司 | A kind of lithium battery electrolytes freezing collection device |
| CN109560342A (en) * | 2018-12-01 | 2019-04-02 | 贵州中伟资源循环产业发展有限公司 | A kind of electrolyte recycling device of useless lithium battery cold type splash-proof |
| CN110479453A (en) * | 2019-08-19 | 2019-11-22 | 广东新生环保科技股份有限公司 | A kind of waste and old power battery device for disassembling |
| CN111416169A (en) * | 2020-03-11 | 2020-07-14 | 长沙有色冶金设计研究院有限公司 | Device for charged crushing and electrolyte recovery of waste power lithium battery |
| CN111416168A (en) * | 2020-03-11 | 2020-07-14 | 长沙有色冶金设计研究院有限公司 | Method for recycling waste power lithium battery electrolyte |
| WO2020145829A1 (en) * | 2019-01-08 | 2020-07-16 | HUPKA, Łukasz | Crushing method for galvanic cells with high energy densities |
| CN111430832A (en) * | 2020-03-11 | 2020-07-17 | 中南大学 | Full resource recovery method for waste ternary lithium ion battery without discharge pretreatment |
| CN111570413A (en) * | 2020-05-21 | 2020-08-25 | 镭射谷科技（深圳）股份有限公司 | Dry ice crusher and dry ice processing system who constitutes thereof |
| CN112713329A (en) * | 2020-12-28 | 2021-04-27 | 北京理工大学深圳汽车研究院(电动车辆国家工程实验室深圳研究院) | Pretreatment method and system for disassembling waste lithium battery |
| CN113161639A (en) * | 2021-03-10 | 2021-07-23 | 深圳清研装备科技有限公司 | Safe discharge method of waste lithium ion battery |
| CN114011739A (en) * | 2021-11-26 | 2022-02-08 | 格林美股份有限公司 | Automatic battery sorting device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1170968A (en) * | 1996-03-05 | 1998-01-21 | 佳能株式会社 | Process and apparatus for recovering components of sealed type battery |
| JP2006024482A (en) * | 2004-07-09 | 2006-01-26 | Sumitomo Metal Mining Co Ltd | Method of dissolving lithium-containing cathode activator |
| CN103090697A (en) * | 2011-10-31 | 2013-05-08 | 通用电气公司 | Systems And Methods For Treating Carbon Dioxide |
| CN103178316A (en) * | 2013-03-08 | 2013-06-26 | 佛山市邦普循环科技有限公司 | Novel electric vehicle power battery pack separation apparatus |
| CN207391013U (en) * | 2017-10-25 | 2018-05-22 | 昆山金宏二氧化碳有限公司 | The device of carbon dioxide is recycled in dry ice preparation process |
-
2018
- 2018-05-31 CN CN201810550183.2A patent/CN108777332B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1170968A (en) * | 1996-03-05 | 1998-01-21 | 佳能株式会社 | Process and apparatus for recovering components of sealed type battery |
| JP2006024482A (en) * | 2004-07-09 | 2006-01-26 | Sumitomo Metal Mining Co Ltd | Method of dissolving lithium-containing cathode activator |
| CN103090697A (en) * | 2011-10-31 | 2013-05-08 | 通用电气公司 | Systems And Methods For Treating Carbon Dioxide |
| CN103178316A (en) * | 2013-03-08 | 2013-06-26 | 佛山市邦普循环科技有限公司 | Novel electric vehicle power battery pack separation apparatus |
| CN207391013U (en) * | 2017-10-25 | 2018-05-22 | 昆山金宏二氧化碳有限公司 | The device of carbon dioxide is recycled in dry ice preparation process |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109361032A (en) * | 2018-12-01 | 2019-02-19 | 贵州中伟资源循环产业发展有限公司 | A kind of lithium battery electrolytes freezing collection device |
| CN109560342A (en) * | 2018-12-01 | 2019-04-02 | 贵州中伟资源循环产业发展有限公司 | A kind of electrolyte recycling device of useless lithium battery cold type splash-proof |
| CN109361033A (en) * | 2018-12-01 | 2019-02-19 | 贵州中伟资源循环产业发展有限公司 | One kind being used for lithium battery electrolytes cold type tilting device |
| WO2020145829A1 (en) * | 2019-01-08 | 2020-07-16 | HUPKA, Łukasz | Crushing method for galvanic cells with high energy densities |
| US20220056553A1 (en) * | 2019-01-08 | 2022-02-24 | REGAIN Sp. z o.o. | Crushing method for galvanic cells with high energy densities |
| CN110479453A (en) * | 2019-08-19 | 2019-11-22 | 广东新生环保科技股份有限公司 | A kind of waste and old power battery device for disassembling |
| CN111416168A (en) * | 2020-03-11 | 2020-07-14 | 长沙有色冶金设计研究院有限公司 | Method for recycling waste power lithium battery electrolyte |
| CN111430832A (en) * | 2020-03-11 | 2020-07-17 | 中南大学 | Full resource recovery method for waste ternary lithium ion battery without discharge pretreatment |
| CN111416169A (en) * | 2020-03-11 | 2020-07-14 | 长沙有色冶金设计研究院有限公司 | Device for charged crushing and electrolyte recovery of waste power lithium battery |
| CN111570413A (en) * | 2020-05-21 | 2020-08-25 | 镭射谷科技（深圳）股份有限公司 | Dry ice crusher and dry ice processing system who constitutes thereof |
| CN112713329A (en) * | 2020-12-28 | 2021-04-27 | 北京理工大学深圳汽车研究院(电动车辆国家工程实验室深圳研究院) | Pretreatment method and system for disassembling waste lithium battery |
| CN113161639A (en) * | 2021-03-10 | 2021-07-23 | 深圳清研装备科技有限公司 | Safe discharge method of waste lithium ion battery |
| CN114011739A (en) * | 2021-11-26 | 2022-02-08 | 格林美股份有限公司 | Automatic battery sorting device |
| CN114011739B (en) * | 2021-11-26 | 2023-12-22 | 格林美股份有限公司 | Automatic battery sorting device |
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Effective date of registration: 20190121 Address after: 236500 No. 5, South Side of Huaxin Avenue, Tianying Industrial Park, Jieshou City, Fuyang City, Anhui Province Applicant after: ANHUI NANDU HUABO NEW MATERIAL TECHNOLOGY Co.,Ltd. Applicant after: JIESHOU NANDU HUAYU POWER SOURCE Co.,Ltd. Address before: 236500 No. 5, South Side of Huaxin Avenue, Tianying Industrial Park, Jieshou City, Fuyang City, Anhui Province Applicant before: ANHUI NANDU HUABO NEW MATERIAL TECHNOLOGY Co.,Ltd. |
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Address after: 236500 No. 5, South Side of Huaxin Avenue, Tianying Industrial Park, Jieshou City, Fuyang City, Anhui Province Patentee after: ANHUI NANDU HUABO NEW MATERIAL TECHNOLOGY Co.,Ltd. Patentee after: Huayu New Energy Technology Co.,Ltd. Address before: 236500 No. 5, South Side of Huaxin Avenue, Tianying Industrial Park, Jieshou City, Fuyang City, Anhui Province Patentee before: ANHUI NANDU HUABO NEW MATERIAL TECHNOLOGY Co.,Ltd. Patentee before: JIESHOU NANDU HUAYU POWER SOURCE Co.,Ltd. |
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Effective date of registration: 20230518 Address after: 236500 No. 5, South Side of Huaxin Avenue, Tianying Industrial Park, Jieshou City, Fuyang City, Anhui Province Patentee after: ANHUI NANDU HUABO NEW MATERIAL TECHNOLOGY Co.,Ltd. Address before: 236500 No. 5, South Side of Huaxin Avenue, Tianying Industrial Park, Jieshou City, Fuyang City, Anhui Province Patentee before: ANHUI NANDU HUABO NEW MATERIAL TECHNOLOGY Co.,Ltd. Patentee before: Huayu New Energy Technology Co.,Ltd. |