CN106252774A - A kind of recovery and treatment method of waste and old Ni-MH power cell - Google Patents
A kind of recovery and treatment method of waste and old Ni-MH power cell Download PDFInfo
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- CN106252774A CN106252774A CN201610725133.4A CN201610725133A CN106252774A CN 106252774 A CN106252774 A CN 106252774A CN 201610725133 A CN201610725133 A CN 201610725133A CN 106252774 A CN106252774 A CN 106252774A
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- particle
- old
- waste
- power cell
- recovery
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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)
- Manufacture And Refinement Of Metals (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses the recovery and treatment method of a kind of waste and old Ni-MH power cell, first shell is cut after cutting process by pending waste and old Ni-MH power cell, retain battery cell；Described battery cell is carried out break process, the thing containing metal collection bigger for granule is broken into the more preferable particle of less dispersion；Particle after Po Sui carries out magnetic separation after dried, and the sorting of described particle is containing scrap and binding agent, fibrous matter two parts by the magnetic utilizing electrode material；It is carried out the binding agent sorted out and fibrous matter processing；After dry ball-milling treatment, obtained fine particle particle to sub-elect containing scrap, described fine particle particle is carried out wet extraction process, extracts rare earth metal or compound.The method can reduce the harm to ecological environment of the waste and old Ni-MH power cell, is effectively improved the recovery utilization rate of resource.
Description
Technical field
The present invention relates to new energy resource power battery technical field, particularly relate at the recovery of a kind of waste and old Ni-MH power cell
Reason method.
Background technology
At present, Ni-MH battery is secondary cell, belongs to state key development clean energy resource support range, complete particularly at present
Ball Ni-MH battery utilizes most commonly used hybrid vehicle, in " the high-tech of current preference development that country issues for 2007
Industrialization major fields guide ", 2012 issue " " 12 " national strategy new industry development plan " and " energy-conservation and
New-energy automobile industrial development planning (2012-2020) " in belong to give special assistance to object.Ni-MH battery have pollution-free,
Many excellent specific properties such as high-performance, high-power, fast charging and discharging, ruggedness.Compared with lead-acid accumulator, Ni-MH battery has ratio
The features such as energy is high, lightweight, volume is little, have extended cycle life；Compared to lithium ion battery, Ni-MH battery main raw material(s) metal
Nickel and rare earth material all can realize reclaim, lithium ion battery recovery value is the highest, particularly weigh hundreds of kilograms vehicle-mounted lithium from
The recycling difficulty of sub-battery is bigger, it is easy to cause secondary pollution；Ni-MH power cell does not contains the toxic metals such as cadmium, lead, its
In some metals also have the highest recovery value, can be described as green energy resource.
The recovery economic worth of waste and old Ni-MH power cell is the highest because its inside battery have substantial amounts of nickel, (30～
50%), the element such as cobalt, zinc and rare earth there is higher recovery value, strengthen the recovery dynamics of waste nickel hydrogen battery, the most useful
In reducing battery cost, additionally it is possible to effectively facilitate the lifting of economic results in society, the sustainable development to society has the heaviest
The realistic meaning wanted.But prior art is still within the starting stage for the recovery of waste and old Ni-MH power cell, lack effective
Recovery process and means, be therefore badly in need of promoting the recovery utilization rate of Ni-MH power cell.
Summary of the invention
It is an object of the invention to provide the recovery and treatment method of a kind of waste and old Ni-MH power cell, the method can reduce useless
The harm to ecological environment of the old Ni-MH power cell, is effectively improved the recovery utilization rate of resource.
A kind of recovery and treatment method of waste and old Ni-MH power cell, described method includes:
Shell is cut after cutting process by pending waste and old Ni-MH power cell, retains battery cell；
Described battery cell is carried out break process, the thing containing metal collection bigger for granule is broken into less dispersion more
Good particle；
Particle after Po Sui carries out magnetic separation after dried, utilizes the magnetic of electrode material to be sorted by described particle and is
Containing scrap and binding agent, fibrous matter two parts；
It is carried out the binding agent sorted out and fibrous matter processing；Wherein, add in cleanout fluid appropriate
Binding agent is dissolved by N-methyl ketopyrrolidine, and described fibrous matter obtains pure fiber after cleaning；
After dry ball-milling treatment, fine particle particle is obtained containing scrap, to described tiny to sub-elected
Grain particle carries out wet extraction process, extracts rare earth metal or compound.
During described battery cell is carried out break process, constantly it is passed through dilute hydrochloric acid, utilizes this dilute hydrochloric acid to remain broken
Temperature within broken machine is in suitable scope and neutralizes electrolyte.
The mass fraction of the dilute hydrochloric acid being passed through is 5～10%.
The consumption of the N-methyl ketopyrrolidine added is:
The N-methyl ketopyrrolidine of every gram of binding agent interpolation 10～15mL.
During described fine particle particle is carried out wet extraction process:
Use the H of 1.5～2.5mol/L2SO4, liquid-solid ratio be that 5:1～6:1 carries out leaching process；
And temperature controls at 25～30 DEG C, the response time controls 0.5～1.0h；
Response rate ＞ 98.0% of final nickel cobalt, mischmetal leaches ＞ 95.0%.
As seen from the above technical solution provided by the invention, the method can reduce waste and old Ni-MH power cell to life
The harm of state environment, is effectively improved the recovery utilization rate of resource.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, required use in embodiment being described below
Accompanying drawing be briefly described, it should be apparent that, below describe in accompanying drawing be only some embodiments of the present invention, for this
From the point of view of the those of ordinary skill in field, on the premise of not paying creative work, it is also possible to obtain other according to these accompanying drawings
Accompanying drawing.
Fig. 1 is provided the recovery and treatment method schematic flow sheet of waste and old Ni-MH power cell by the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Ground describes, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on this
Inventive embodiment, the every other enforcement that those of ordinary skill in the art are obtained under not making creative work premise
Example, broadly falls into protection scope of the present invention.
Below in conjunction with accompanying drawing, the embodiment of the present invention is described in further detail, is illustrated in figure 1 the present invention and implements
Example is provided the recovery and treatment method schematic flow sheet of waste and old Ni-MH power cell, and described method includes:
Step 11: cut by shell after cutting process by pending waste and old Ni-MH power cell, retains battery
Monomer；
In this step, the shell after cutting is delivered to clean, and washes away electrode material or the electrolyte of remained on surface
Deng impurity, can sell after cleaning.
Step 12: described battery cell is carried out break process, is broken into less by the thing containing metal collection bigger for granule
The more preferable particle of dispersion；
In this step, can constantly be passed through dilute hydrochloric acid during described battery cell is carried out break process, profit
Maintain the temperature within disintegrating machine in suitable scope with this dilute hydrochloric acid and neutralize electrolyte, it is achieved the harmless nothing of electrolyte
Dirtization efficiently processes；In implementing, the mass fraction of the dilute hydrochloric acid being passed through can be 5～10%.
Step 13: the particle after Po Sui carries out magnetic separation after dried, utilizes the magnetic of electrode material by described broken
Material sorting is for containing scrap and binding agent, fibrous matter two parts；
Step 14: be carried out the binding agent sorted out and fibrous matter processing；
In this step, cleanout fluid can add appropriate N-methyl ketopyrrolidine (NMP) binding agent is dissolved, institute
State fibrous matter and obtain pure fiber after cleaning, due to the residual of electrodeless material, can directly recycling；
Here, the consumption of the N-methyl ketopyrrolidine added can be: the formylmerphalan of every gram of binding agent interpolation 10～15mL
Base ketopyrrolidine (NMP).
Step 15: obtained fine particle particle after dry ball-milling treatment containing scrap, to institute to sub-elect
State fine particle particle and carry out wet extraction process, extract rare earth metal or compound.
In this step, the granule after ball milling is the least, and the biggest leaching efficiency to materials various in material of specific surface area is more
Favorably.
In implementing, during described fine particle particle is carried out wet extraction process:
The H of 1.5～2.5mol/L can be used2SO4, liquid-solid ratio be that 5:1～6:1 carries out leaching process；And temperature controls
25～30 DEG C, the response time controls 0.5～1.0h；Response rate ＞ 98.0% of final nickel cobalt, mischmetal leaches ＞
95.0%, it is effectively increased metal recovery rate.
In sum, to be provided the recovery and treatment method of waste and old Ni-MH power cell to have the most excellent for the embodiment of the present invention
Point:
1) process difficulties such as the recycling solving waste and old Ni-MH power cell；
2) solving the harmless of Ni-MH power cell electrolyte inside efficiently to process without dirtization, the waste liquid after process can continue
Cycling and reutilization, improves the utilization ratio of water resource, and whole set process water circulation use, without the discharge of waste water；
3) utilize Mechanical Crushing-wet extraction, solve the sorting between each particle, improve the response rate of electrode material
And the economic benefit reclaimed；Wet extraction is utilized can effectively to leach nickel, cobalt and rare earth metal；
4) waste and old Ni-MH power cell cutting rear casing, binding agent and fibrous matter upper electrode material it are effectively reduced
Residual, reduces residual and improves the response rate.
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention is not limited thereto,
Any those familiar with the art in the technical scope of present disclosure, the change that can readily occur in or replacement,
All should contain within protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Enclose and be as the criterion.
Claims (5)
1. the recovery and treatment method of a waste and old Ni-MH power cell, it is characterised in that described method includes:
Shell is cut after cutting process by pending waste and old Ni-MH power cell, retains battery cell；
Described battery cell is carried out break process, the thing containing metal collection bigger for granule is broken into less dispersion more preferable
Particle；
Particle after Po Sui carries out magnetic separation after dried, and the magnetic utilizing electrode material is golden for containing by the sorting of described particle
Belong to particle and binding agent, fibrous matter two parts；
It is carried out the binding agent sorted out and fibrous matter processing；Wherein, cleanout fluid adds appropriate formylmerphalan
Binding agent is dissolved by base ketopyrrolidine, and described fibrous matter obtains pure fiber after cleaning；
After dry ball-milling treatment, fine particle particle is obtained containing scrap to sub-elected, broken to described fine particle
Material carries out wet extraction process, extracts rare earth metal or compound.
The recovery and treatment method of the most waste and old Ni-MH power cell, it is characterised in that
During described battery cell is carried out break process, constantly it is passed through dilute hydrochloric acid, utilizes this dilute hydrochloric acid to maintain disintegrating machine
Internal temperature is in suitable scope and neutralizes electrolyte.
The recovery and treatment method of the most waste and old Ni-MH power cell, it is characterised in that
The mass fraction of the dilute hydrochloric acid being passed through is 5～10%.
The recovery and treatment method of the most waste and old Ni-MH power cell, it is characterised in that the formylmerphalan added
The consumption of base ketopyrrolidine is:
The N-methyl ketopyrrolidine of every gram of binding agent interpolation 10～15mL.
The recovery and treatment method of the most waste and old Ni-MH power cell, it is characterised in that to described tiny
During granule particle carries out wet extraction process:
Use the H of 1.5～2.5mol/L2SO4, liquid-solid ratio be that 5:1～6:1 carries out leaching process；
And temperature controls at 25～30 DEG C, the response time controls 0.5～1.0h；
Response rate ＞ 98.0% of final nickel cobalt, mischmetal leaches ＞ 95.0%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610725133.4A CN106252774A (en) | 2016-08-25 | 2016-08-25 | A kind of recovery and treatment method of waste and old Ni-MH power cell |
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| CN201610725133.4A CN106252774A (en) | 2016-08-25 | 2016-08-25 | A kind of recovery and treatment method of waste and old Ni-MH power cell |
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| CN106252774A true CN106252774A (en) | 2016-12-21 |
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| CN201610725133.4A Pending CN106252774A (en) | 2016-08-25 | 2016-08-25 | A kind of recovery and treatment method of waste and old Ni-MH power cell |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109830773A (en) * | 2019-03-19 | 2019-05-31 | 泰顺永庆电力技术有限公司 | Waste lithium cell recovery and treatment method |
| DE102022113504A1 (en) | 2022-05-30 | 2023-11-30 | Bayerische Motoren Werke Aktiengesellschaft | Process for producing a recyclate from dry coating material, recyclate, process for solvent-free electrode production and electrode |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5575907A (en) * | 1992-07-28 | 1996-11-19 | Batenus Umwelt - Und Recyclingtechnologie Gmbh & Co. Kg | Process for the recovery of raw materials from presorted collected waste, especially scrap electrochemical batteries and accumulators |
| JPH0982371A (en) * | 1995-09-18 | 1997-03-28 | Mitsui Mining & Smelting Co Ltd | Valuable material recovering method from waste nickel-hydrogen secondary battery |
| CN1171171A (en) * | 1994-12-20 | 1998-01-21 | 瓦尔达电池股份公司 | Process for recovery of metals from used nickel-metal hydride accumulators |
| CN1171170A (en) * | 1994-12-20 | 1998-01-21 | 瓦尔达电池股份公司 | Process for recovery of metals from used nickel-metal hydride accumulators |
| CN102703706A (en) * | 2012-06-01 | 2012-10-03 | 奇瑞汽车股份有限公司 | Method for recovering valued metals from waste lithium cobaltate batteries |
-
2016
- 2016-08-25 CN CN201610725133.4A patent/CN106252774A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5575907A (en) * | 1992-07-28 | 1996-11-19 | Batenus Umwelt - Und Recyclingtechnologie Gmbh & Co. Kg | Process for the recovery of raw materials from presorted collected waste, especially scrap electrochemical batteries and accumulators |
| CN1171171A (en) * | 1994-12-20 | 1998-01-21 | 瓦尔达电池股份公司 | Process for recovery of metals from used nickel-metal hydride accumulators |
| CN1171170A (en) * | 1994-12-20 | 1998-01-21 | 瓦尔达电池股份公司 | Process for recovery of metals from used nickel-metal hydride accumulators |
| JPH0982371A (en) * | 1995-09-18 | 1997-03-28 | Mitsui Mining & Smelting Co Ltd | Valuable material recovering method from waste nickel-hydrogen secondary battery |
| CN102703706A (en) * | 2012-06-01 | 2012-10-03 | 奇瑞汽车股份有限公司 | Method for recovering valued metals from waste lithium cobaltate batteries |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109830773A (en) * | 2019-03-19 | 2019-05-31 | 泰顺永庆电力技术有限公司 | Waste lithium cell recovery and treatment method |
| DE102022113504A1 (en) | 2022-05-30 | 2023-11-30 | Bayerische Motoren Werke Aktiengesellschaft | Process for producing a recyclate from dry coating material, recyclate, process for solvent-free electrode production and electrode |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161221 |
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