CN105514400B - The method for battery cathode active material hydrogen bearing alloy is prepared using waste nickel hydrogen battery - Google Patents
The method for battery cathode active material hydrogen bearing alloy is prepared using waste nickel hydrogen battery Download PDFInfo
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- CN105514400B CN105514400B CN201511026351.0A CN201511026351A CN105514400B CN 105514400 B CN105514400 B CN 105514400B CN 201511026351 A CN201511026351 A CN 201511026351A CN 105514400 B CN105514400 B CN 105514400B
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- Prior art keywords
- battery
- bearing alloy
- active material
- hydrogen
- waste nickel
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
- H01M4/383—Hydrogen absorbing alloys
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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
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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
-
- 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 method for battery cathode active material hydrogen bearing alloy is prepared the present invention provides waste nickel hydrogen battery is utilized, the battery core of waste nickel hydrogen battery decladding is put into metallurgical equipment after heat treatment, material carries out vibration screening, screenings carries out gravity separation and takes the maximum powder of density, it is placed in high-temperature resistant container, hydrogen bearing alloy is made after high melt, heat preservation refining, rapid cooling in the metal for filling into missing.The method of the present invention is simple for process and can make full use of metals resources therein, including is difficult to the rare earth recycled, and heavy metal recovery rate is higher.
Description
Technical field
It is the present invention relates to a kind of method preparing battery cathode active material hydrogen bearing alloy, more particularly to a kind of using waste and old
The method that Ni-MH battery prepares battery cathode active material hydrogen bearing alloy.
Background technology
The preparation method of one side nickel-hydrogen battery negative pole active material hydrogen bearing alloy is to use corresponding High Purity Gold at present
Belonging to powder, --- heat preservation refining --- is made after rapid cooling through high melt, used raw material --- high pure metal be from
It refines and is made in raw ore, need nature mineral resources.And on the other hand, containing a large amount of nickel and quite in waste nickel hydrogen battery
The rare earth element of quantity fails by effective recycling.Due to lacking recycling approach appropriate, nickel-hydrogen waste battery is general at present
It is landfilled as rubbish, not only has potential pollution and a kind of huge waste to environment.Also there is the waste and old ni-mh electricity in part
The method that pond uses hydrometallurgic recovery valuable metal therein, but it is only capable of the valuable metal of recovery section.
Invention content
The present invention is intended to provide a kind of prepared using waste nickel hydrogen battery for battery cathode active material hydrogen bearing alloy
Method, can effectively save mineral resources, shorten the route of recycling, simplify technique.The present invention is realized by following scheme.
Include the following steps：
(1) after removing waste nickel hydrogen battery shell, battery core is put into Equipment for Heating Processing, in vacuum or is full of protective atmosphere
Under conditions of, it is heated to 200~500 DEG C and maintains 2~4h；
(2) material after heat treatment is taken out, is detached in a manner of vibration screening and respectively obtains oversize and screenings；
(3) gravity separation is carried out to screenings, takes the powder body material that density is heavier；
(4) the most heavy powder body material of the density chosen after gravity separation is placed in high-temperature resistant container, by for battery
The chemical component of the hydrogen bearing alloy of negative electrode active material fills into the metal accordingly lacked thereto, is prepared with existing hydrogen bearing alloy
In smelting technology it is substantially similar, through high melt, --- heat preservation refining --- is made after rapid cooling.
Protective atmosphere is generally one or more in nitrogen or inert gas.
After (1) step, material after heat treatment is washed --- the vibration screening separation is carried out after drying again,
Impurity level can be reduced, the performance that active material is made is improved.
Compared with prior art, the present invention has the advantages that following：
1. the present invention can be after being detached of directly sharp waste nickel hydrogen battery by simple physical method, then isolate directly made
To prepare the raw material of hydrogen bearing alloy powder material, and valuable metal therein is not obtained using first recycling --- metal is made again
For prepare hydrogen bearing alloy raw material conventional thought, it is simple for process and metals resources therein can be made full use of, including be difficult to
The rare earth of recycling.
2. by being heated in vacuum or inert gas filled metallurgical equipment and maintaining certain time, so that it may with by diaphragm
And the organic matters such as binder melt, so that active material falls off out from matrix, effectively improve the rate of recovery
3. entire recovery process is nearly free from waste residue, safety and environmental protection.
Specific implementation mode
The invention will be further described with reference to embodiments, but the invention is not limited in the statements of embodiment.
Embodiment 1
A method of it is prepared using waste and old round Ni-MH battery and is used for battery cathode active material hydrogen bearing alloy, by following
Step carries out：
(1) after the metal outer steel shell for removing round waste nickel hydrogen battery, battery core is put into Equipment for Heating Processing, full of nitrogen
Under conditions of gas, it is heated to 500 DEG C and maintains 2h；
(2) material after heat treatment is taken out, is washed and is dried using pure water, the impurity such as lye are removed；Then will
Material vibrating sieving separating after drying, respectively obtains oversize and screenings；
(3) gravity separation is carried out to screenings, takes the powder body material that density is heavier；
(4) the most heavy powder body material of the density chosen after gravity separation is placed in high-temperature resistant container, by for battery
The chemical component of the hydrogen bearing alloy of negative electrode active material fills into the gold that metallic cobalt, manganese, aluminium, rare earth metal etc. accordingly lack thereto
Belong to, using the substantially similar technique of the melting in being prepared with existing hydrogen bearing alloy, high temperature melting is carried out under argon atmosphere
Refining, until all metals in high-temperature resistant container be completely melt for metallic solution and completely it is shinny after, then keep the temperature refining certain time,
Hydrogen bearing alloy is obtained after rapid cooling.
Embodiment 2
A method of it is prepared using waste and old rectangular Ni-MH battery and is used for battery cathode active material hydrogen bearing alloy, by following
Step carries out：
(1) after the metal outer steel shell for removing rectangular waste nickel hydrogen battery, battery core is put into metallurgical Equipment for Heating Processing, is being filled
Under conditions of full argon gas, it is heated to 380 DEG C and maintains 3h；
(2) material after heat treatment is taken out, is washed and is dried using pure water, the impurity such as lye are removed；Then will
Material vibrating sieving separating after drying, respectively obtains oversize and screenings；
(3) gravity separation is carried out to screenings, takes the powder body material that density is heavier；
(4) the most heavy powder body material of the density chosen after gravity separation is placed in high-temperature resistant container, by for battery
The chemical component of the hydrogen bearing alloy of negative electrode active material fills into the gold that metallic cobalt, manganese, aluminium, rare earth metal etc. accordingly lack thereto
Belong to, using the substantially similar technique of the melting in being prepared with existing hydrogen bearing alloy, high temperature melting is carried out under argon atmosphere
Refining, until all metals in high-temperature resistant container be completely melt for metallic solution and completely it is shinny after, then keep the temperature refining certain time,
Hydrogen bearing alloy is obtained after rapid cooling.
Claims (2)
1. a kind of method prepared using waste nickel hydrogen battery for battery cathode active material hydrogen bearing alloy, it is characterised in that：
Include the following steps,
(1) after removing waste nickel hydrogen battery shell, battery core is put into Equipment for Heating Processing, in vacuum or full of the item of protective atmosphere
Under part, it is heated to 200~500 DEG C and maintains 2~4h；
(2) material after heat treatment is taken out, is detached in a manner of vibration screening and respectively obtains oversize and screenings；
(3) gravity separation is carried out to screenings, takes the powder body material that density is heavier；
(4) the most heavy powder body material of the density chosen after gravity separation is placed in high-temperature resistant container, by for battery cathode
The chemical component of the hydrogen bearing alloy of active material fills into the metal accordingly lacked thereto, through high melt --- heat preservation essence
Refining --- it is made after rapid cooling.
2. as described in claim 1 utilize waste nickel hydrogen battery to prepare the side for battery cathode active material hydrogen bearing alloy
Method, it is characterised in that：After described (1) step, material after heat treatment is washed --- described shake is carried out after drying again
Dynamic sieving separating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511026351.0A CN105514400B (en) | 2015-12-30 | 2015-12-30 | The method for battery cathode active material hydrogen bearing alloy is prepared using waste nickel hydrogen battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511026351.0A CN105514400B (en) | 2015-12-30 | 2015-12-30 | The method for battery cathode active material hydrogen bearing alloy is prepared using waste nickel hydrogen battery |
Publications (2)
| Publication Number | Publication Date |
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| CN105514400A CN105514400A (en) | 2016-04-20 |
| CN105514400B true CN105514400B (en) | 2018-10-30 |
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| CN201511026351.0A Active CN105514400B (en) | 2015-12-30 | 2015-12-30 | The method for battery cathode active material hydrogen bearing alloy is prepared using waste nickel hydrogen battery |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE540849C2 (en) * | 2016-05-25 | 2018-11-27 | Nilar Int Ab | Pyrometallurgical process for recycling of NiMH batteries |
| CN108767286A (en) * | 2018-06-26 | 2018-11-06 | 包头昊明稀土新电源科技有限公司 | Waste and old rare earth new power collector recovery method and device |
| CN115347266B (en) * | 2022-10-19 | 2023-01-06 | 广州天赐高新材料股份有限公司 | Wet crushing and recycling method and device for waste lithium ion batteries |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101217206A (en) * | 2008-01-16 | 2008-07-09 | 中南大学 | High efficient stripping method of current collector in lithium battery recycling |
| JP5308120B2 (en) * | 2008-10-31 | 2013-10-09 | 三井金属鉱業株式会社 | Method for producing hydrogen storage alloy composition |
| CN103123965B (en) * | 2013-02-18 | 2016-01-20 | 先进储能材料国家工程研究中心有限责任公司 | Inefficacy Ni-MH battery is utilized to prepare the preparation method of alloy material storing hydrogen |
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