CN105846004A - Safe and easily implementary waste and old lithium ion battery recovery and treatment technology - Google Patents
Safe and easily implementary waste and old lithium ion battery recovery and treatment technology Download PDFInfo
- Publication number
- CN105846004A CN105846004A CN201610101058.4A CN201610101058A CN105846004A CN 105846004 A CN105846004 A CN 105846004A CN 201610101058 A CN201610101058 A CN 201610101058A CN 105846004 A CN105846004 A CN 105846004A
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- China
- Prior art keywords
- lithium ion
- ion battery
- battery
- waste
- recovery
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- 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.)
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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
The invention discloses a safe and easily implementary waste and old lithium ion battery recovery and treatment technology. The technology is an industrial lithium ion battery recovery and harmless treatment process and comprises cleaning a battery through an organic solvent to remove an electrolyte and a lithium salt residual in the battery, heating the battery in a nitrogen atmosphere to evaporate the residual electrolyte so that technology improves electrolytic disassembling process safety and realizes recovery and harmless treatment on the electrolyte, and recovering an electrolytic disassembling separation film and cathode and anode pieces so that waste and old lithium ion battery harmless treatment is finished. The technology has high safety and a low cost and realizes waste and old lithium ion battery recovery and harmless treatment.
Description
Technical field
The present invention relates to waste and old lithium ion battery innoxious process for treating, be specifically related to a kind of safety and be prone to
The recovery processing technique of the waste and old lithium ion battery implemented.
Background technology
New Energy Sources In China development of automobile is like a raging fire, and main technological route is pure electric automobile, wherein lithium
Ion battery occupies rapidly pure electric automobile with its higher energy density and more ripe production technology
The position of mainstream of energy resource system.After the fast development of the marketization, substantial amounts of lithium ion battery is at last
The final result scrapped can be faced.But, the recycling problem of current waste and old lithium ion battery is all the time
A not ripe technology path.
Lithium ion battery is after scrapping, if processed not in time, may result in catch fire, blast etc. no
The generation of safety problem.Produce the positive electrode (LiFeP04) used by lithium ion battery, negative material
(C) although little to environmental hazard, but product during battery end of life and wherein
Electrolyte, isolating membrane, the material such as battery case, as processed not in time, it will environment to be caused ratio
More serious pollution.Therefore, the lithium ion battery scrapped have to carry out harmless treatment as early as possible, with
Ensure environmental sound, and reach the effect of resource circulation utilization.
At present, domestic had some patents carrying out disassembling process for waste and old lithium ion battery.But
Be these patents be only the part achievement in research in laboratory research stage, do not carry out the feasible of industrialization
Property.With entering in view of cost and security reason, it is impossible to directly battery disassembled and pulverize, because
There is the risk of Fire explosion, use the chilling process of liquid nitrogen freezing or omnidistance N2 atmosphere to exist into simultaneously
This risk；Additionally having the method that patent is extracted out after using note cleanout fluid again, on the one hand extraction needs
Extra vacuum line increases cost, and additionally the liquid of inside battery can not be taken out by extraction completely.
Therefore, it is necessary to there be processing method and the process route of the innoxious safe low cost of set of system,
The lithium ion battery scrapped is carried out harmless treatment.So not only improve industry development, be also with
The inevitable choice of humorous development.
Summary of the invention
For problem above, the invention provides a kind of safety waste and old lithium ion battery easy to implement
Recovery processing technique, safety is high, low cost, it is achieved the harmless treatment to waste and old lithium ion battery
And recovery, can effectively solve the problem in background technology.
To achieve these goals, the technical solution used in the present invention is as follows: a kind of safety is easy to implement
The recovery processing technique of waste and old lithium ion battery, comprise the following steps:
1) being discharged completely by waste and old lithium ion battery, discharge flow path can use the multiplying power of 0.1-0.3C,
It is discharged to below 1V；
2) lithium ion battery after electric discharge completely is put into the cleaning machine of N2 atmosphere, by battery anti-explosion
Mouth perforation, then reverses battery, and venting coordinates downwards vibration to be poured out by electrolyte；
3) just putting by battery subsequently, venting upwards, injects cleanout fluid, and heat tracing and Under Ultrasonic Vibration
Swing, after 20-40 minute, battery is inverted and pours out liquids recovery；
4) battery carrying out second time and notes cleanout fluid cleaning, repeated several times, until cleaning up；
5) after completing to clean, shell takes out battery core over battery low pressure intensification rear cutout, disassemble anode and cathode slice and every
From film；
6) reclaim after isolating membrane being cleaned；
7) having highly basic to dissolve long-pending fluid recovery after cathode sheets being pulverized, filtering residue cleaning-drying is mended lithium and is re-sintered；
8) being washed by anode strip and ultrasonic make active substance separate with collector, active substance is collected, afflux
Body sends into sintering furnace sintering to remove the active substance of attachment.
Further, described lithium ion battery is duricrust or Soft Roll, when it is Soft Roll, directly at plastic-aluminum
Film opening.
Further, described cleaning machine includes one or more chamber, for lazy in wherein first chamber is stopped up
Property atmosphere, it is ensured that the process opening battery and for the first time note cleanout fluid does not results in cells burst；
Low inert gas atmosphere or normal atmosphere is used after second chamber.
Further, described cleanout fluid uses DMC, DEC, EC or PC electrolyte.
Further, described cleanout fluid uses alkali liquor.
Further, described cleaning equipment only has liquid injection system and does not have extra drawing liquid equipment.
Further, the built-in heater of described cleaning equipment.
Further, the built-in ultrasonic device of described cleaning equipment or oscillator device.
Beneficial effects of the present invention:
The present invention first passes through organic solvent and cleans, and entrained electrolyte and the lithium salts of inside battery is removed,
Then in nitrogen atmosphere, battery heating is evaporated entrained electrolyte, disassembles the peace of process improving battery
Whole step, reclaims electrolyte simultaneously and carries out harmless treatment.Then battery is disassembled separating diaphragm, negative and positive
Pole piece, reclaims, and to complete the harmless treatment to waste and old lithium ion battery, safety is high, becomes
This is low, it is achieved harmless treatment and the recovery to waste and old lithium ion battery.
Accompanying drawing explanation
Fig. 1 is the cleaning machine schematic diagram of the present invention.
Fig. 2 is the schematic diagram of implementing process flow process of the present invention.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing
And embodiment, the present invention is further elaborated.Should be appreciated that described herein specifically
Embodiment only in order to explain the present invention, is not intended to limit the present invention.
Embodiment:
As it is shown in figure 1, the recovery processing technique of a kind of safety waste and old lithium ion battery easy to implement,
Comprise the following steps:
1) being discharged completely by waste and old lithium ion battery, discharge flow path can use the multiplying power of 0.1-0.3C,
It is discharged to below 1V；
2) lithium ion battery after electric discharge completely is put into the cleaning machine of N2 atmosphere, by battery anti-explosion
Mouth perforation, then reverses battery, and venting coordinates downwards vibration to be poured out by electrolyte；
3) just putting by battery subsequently, venting upwards, injects cleanout fluid, and heat tracing and Under Ultrasonic Vibration
Swing, after 20-40 minute, battery is inverted and pours out liquids recovery；
4) battery carrying out second time and notes cleanout fluid cleaning, repeated several times, until cleaning up；
5) after completing to clean, shell takes out battery core over battery low pressure intensification rear cutout, disassemble anode and cathode slice and every
From film；
6) reclaim after isolating membrane being cleaned；
7) having highly basic to dissolve long-pending fluid recovery after cathode sheets being pulverized, filtering residue cleaning-drying is mended lithium and is re-sintered；
8) being washed by anode strip and ultrasonic make active substance separate with collector, active substance is collected, afflux
Body sends into sintering furnace sintering to remove the active substance of attachment.
, described lithium ion battery is duricrust or Soft Roll on above-described embodiment preferably, when it is Soft Roll,
Directly at aluminum plastic film opening.
On above-described embodiment preferably, described cleaning machine includes one or more chamber, wherein first
Chamber is atmosphere of inert gases in stopping up, it is ensured that the process opening battery and first time note cleanout fluid does not results in
Cells burst；Low inert gas atmosphere or normal atmosphere is used, to reduce cost after second chamber.
On above-described embodiment preferably, described cleanout fluid uses DMC, DEC, EC or PC electrolyte.
On above-described embodiment preferably, described cleanout fluid uses alkali liquor.
On above-described embodiment preferably, described cleaning equipment only has liquid injection system and does not have extra
Drawing liquid equipment, such that it is able to reduce cost.
On above-described embodiment preferably, the built-in heater of described cleaning equipment, add so that battery is heated up
Fast cleanout fluid permeates to improve cleaning performance.
On above-described embodiment preferably, the built-in ultrasonic device of described cleaning equipment or oscillator device, with right
Battery carries out vibration and accelerates cleanout fluid at battery core internal penetration to improve cleaning performance.
Based on above-mentioned, the present invention first passes through organic solvent and cleans, by the entrained electrolyte of inside battery and
Lithium salts removes, and then in nitrogen atmosphere, battery heating is evaporated entrained electrolyte, tears open improving electrolysis
The degree of safety of solution preocess, reclaims electrolyte simultaneously and carries out harmless treatment.Then separation is disassembled in electrolysis
Barrier film, anode and cathode slice, reclaim, to complete the harmless treatment to waste and old lithium ion battery, peace
Quan Xinggao, low cost, it is achieved harmless treatment and the recovery to waste and old lithium ion battery.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all
Any amendment, equivalent and the improvement etc. made within the spirit and principles in the present invention, all should comprise
Within protection scope of the present invention.
Claims (8)
1. the recovery processing technique of the waste and old lithium ion battery that a safety is easy to implement, it is characterised in that
Comprise the following steps:
1) being discharged completely by waste and old lithium ion battery, discharge flow path can use the multiplying power of 0.1-0.3C,
It is discharged to below 1V；
2) lithium ion battery after electric discharge completely is put into the cleaning machine of N2 atmosphere, by battery anti-explosion
Mouth perforation, then reverses battery, and venting coordinates downwards vibration to be poured out by electrolyte；
3) just putting by battery subsequently, venting upwards, injects cleanout fluid, and heat tracing and Under Ultrasonic Vibration
Swing, after 20-40 minute, battery is inverted and pours out liquids recovery；
4) battery carrying out second time and notes cleanout fluid cleaning, repeated several times, until cleaning up；
5) after completing to clean, shell takes out battery core over battery low pressure intensification rear cutout, disassemble anode and cathode slice and every
From film；
6) reclaim after isolating membrane being cleaned；
7) having highly basic to dissolve long-pending fluid recovery after cathode sheets being pulverized, filtering residue cleaning-drying is mended lithium and is re-sintered；
8) being washed by anode strip and ultrasonic make active substance separate with collector, active substance is collected, afflux
Body sends into sintering furnace sintering to remove the active substance of attachment.
The recovery of the waste and old lithium ion battery that a kind of safety the most according to claim 1 is easy to implement
Process technique, it is characterised in that: described lithium ion battery is duricrust or Soft Roll, when it is Soft Roll, directly
It is connected on aluminum plastic film opening.
The recovery of the waste and old lithium ion battery that a kind of safety the most according to claim 1 is easy to implement
Process technology, it is characterised in that: described cleaning machine includes one or more chamber, wherein first
Chamber is atmosphere of inert gases in stopping up, it is ensured that the process opening battery and first time note cleanout fluid does not results in
Cells burst；Low inert gas atmosphere or normal atmosphere is used after second chamber.
The recovery of the waste and old lithium ion battery that a kind of safety the most according to claim 1 is easy to implement
Process technique, it is characterised in that: described cleanout fluid uses DMC, DEC, EC or PC electrolyte.
5. according to the waste and old lithium ion battery easy to implement of a kind of safety described in claim 1 or 4
Recovery processing technique, it is characterised in that: described cleanout fluid uses alkali liquor.
The recovery of the waste and old lithium ion battery that a kind of safety the most according to claim 1 is easy to implement
Process technique, it is characterised in that: described cleaning equipment only has liquid injection system and does not have extra taking out
Liquid equipment.
The recovery of the waste and old lithium ion battery that a kind of safety the most according to claim 1 is easy to implement
Process technique, it is characterised in that: the built-in heater of described cleaning equipment.
The recovery of the waste and old lithium ion battery that a kind of safety the most according to claim 1 is easy to implement
Process technique, it is characterised in that: the built-in ultrasonic device of described cleaning equipment or oscillator device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610101058.4A CN105846004A (en) | 2016-02-24 | 2016-02-24 | Safe and easily implementary waste and old lithium ion battery recovery and treatment technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610101058.4A CN105846004A (en) | 2016-02-24 | 2016-02-24 | Safe and easily implementary waste and old lithium ion battery recovery and treatment technology |
Publications (1)
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| CN105846004A true CN105846004A (en) | 2016-08-10 |
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Family Applications (1)
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| CN201610101058.4A Pending CN105846004A (en) | 2016-02-24 | 2016-02-24 | Safe and easily implementary waste and old lithium ion battery recovery and treatment technology |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106252777A (en) * | 2016-08-31 | 2016-12-21 | 合肥国轩高科动力能源有限公司 | A kind of recovery method of lithium-ion battery electrolytes |
| CN106370478A (en) * | 2016-11-28 | 2017-02-01 | 天津力神电池股份有限公司 | Electrolyte extraction method of lithium ion battery |
| CN108321453A (en) * | 2018-03-12 | 2018-07-24 | 毅康科技有限公司 | A kind of waste lithium cell recovery system equipment |
| CN108448197A (en) * | 2018-04-09 | 2018-08-24 | 惠州亿纬锂能股份有限公司 | The extracting method of waste and old lithium ionic cell electrolyte |
| CN110165324A (en) * | 2019-06-24 | 2019-08-23 | 中国科学院青海盐湖研究所 | A kind of method and system recycling anode and Regeneration and Repair from waste lithium cell |
| CN112103591A (en) * | 2020-10-20 | 2020-12-18 | 广州市豪越新能源设备有限公司 | Harmless recycling method for waste lithium battery electrolyte |
| CN112840488A (en) * | 2018-10-18 | 2021-05-25 | Bhs桑托芬有限公司 | Equipment for recycling waste batteries |
| CN108321453B (en) * | 2018-03-12 | 2024-04-19 | 毅康科技有限公司 | Waste lithium battery recovery system equipment |
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| CN103346365A (en) * | 2013-07-22 | 2013-10-09 | 田东 | Method for recycling negative material from waste lithium ion battery |
| CN103825064A (en) * | 2014-02-27 | 2014-05-28 | 北京工业大学 | Demonstration process for recovering waste and old dynamic lithium iron phosphate cell in environmental protection mode |
| CN104009269A (en) * | 2013-12-10 | 2014-08-27 | 宁波维科电池股份有限公司 | Recovery treatment method of waste lithium ion battery |
| CN104143667A (en) * | 2013-08-23 | 2014-11-12 | 中航锂电（洛阳）有限公司 | Method and device for collection of waste lithium ion battery electrolyte solution |
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| CN103346365A (en) * | 2013-07-22 | 2013-10-09 | 田东 | Method for recycling negative material from waste lithium ion battery |
| CN104143667A (en) * | 2013-08-23 | 2014-11-12 | 中航锂电（洛阳）有限公司 | Method and device for collection of waste lithium ion battery electrolyte solution |
| CN104009269A (en) * | 2013-12-10 | 2014-08-27 | 宁波维科电池股份有限公司 | Recovery treatment method of waste lithium ion battery |
| CN103825064A (en) * | 2014-02-27 | 2014-05-28 | 北京工业大学 | Demonstration process for recovering waste and old dynamic lithium iron phosphate cell in environmental protection mode |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106252777A (en) * | 2016-08-31 | 2016-12-21 | 合肥国轩高科动力能源有限公司 | A kind of recovery method of lithium-ion battery electrolytes |
| CN106370478A (en) * | 2016-11-28 | 2017-02-01 | 天津力神电池股份有限公司 | Electrolyte extraction method of lithium ion battery |
| CN108321453A (en) * | 2018-03-12 | 2018-07-24 | 毅康科技有限公司 | A kind of waste lithium cell recovery system equipment |
| CN108321453B (en) * | 2018-03-12 | 2024-04-19 | 毅康科技有限公司 | Waste lithium battery recovery system equipment |
| CN108448197A (en) * | 2018-04-09 | 2018-08-24 | 惠州亿纬锂能股份有限公司 | The extracting method of waste and old lithium ionic cell electrolyte |
| CN112840488A (en) * | 2018-10-18 | 2021-05-25 | Bhs桑托芬有限公司 | Equipment for recycling waste batteries |
| CN110165324A (en) * | 2019-06-24 | 2019-08-23 | 中国科学院青海盐湖研究所 | A kind of method and system recycling anode and Regeneration and Repair from waste lithium cell |
| CN112103591A (en) * | 2020-10-20 | 2020-12-18 | 广州市豪越新能源设备有限公司 | Harmless recycling method for waste lithium battery electrolyte |
| CN112103591B (en) * | 2020-10-20 | 2021-11-09 | 安徽力源新能源有限公司 | Harmless recycling method for waste lithium battery electrolyte |
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Application publication date: 20160810 |