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Recycling process and method for all metal elements in abandoned power lithium batteries

A lithium battery and all-element technology, which is applied in the recycling process of all metal elements in waste power lithium batteries, can solve the problems of poor element recycling effect, inability to fully recycle metal elements, waste of metal resources, etc., and achieve good environmental quality , high protection effect, and low operating cost

Inactive Publication Date: 2019-12-20
NANCHANG HANGKONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when the above-mentioned technical solutions are used in practice, usually the metal elements in the waste power lithium battery cannot be fully recycled, resulting in a poor recycling effect of the metal elements in the waste lithium battery, which greatly wastes the metal resources contained in it.

Method used

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  • Recycling process and method for all metal elements in abandoned power lithium batteries
  • Recycling process and method for all metal elements in abandoned power lithium batteries

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Effect test

Embodiment 1

[0026] The invention provides a process and method for recovering all metal elements in a waste power lithium battery, which specifically includes the following steps:

[0027] Step 1: Process the raw materials, rinse the waste lithium battery, rinse it repeatedly with clean water three times, wipe it with a cotton cloth, then disassemble the waste lithium battery, dry the internal raw materials of the waste lithium battery at high temperature, and use grinding The machine grinds the internal raw materials of waste power lithium batteries, and screens the internal raw materials for many times to remove large particle raw materials;

[0028] Step 2: Roasting at high temperature, place the ground raw materials in the combustion furnace for combustion, and add an appropriate amount of carbon powder to the inside, when the reaction temperature in the combustion furnace is heated to 600 ° C, the reaction time is kept at 2 hours, so that the raw materials The internal metal elements...

Embodiment 2

[0035] The invention provides a process and method for recovering all metal elements in a waste power lithium battery, which specifically includes the following steps:

[0036] Step 1: Process the raw materials, rinse the waste lithium battery, rinse it repeatedly with clean water three times, wipe it with a cotton cloth, then disassemble the waste lithium battery, dry the internal raw materials of the waste lithium battery at high temperature, and use grinding The machine grinds the internal raw materials of waste power lithium batteries, and screens the internal raw materials for many times to remove large particle raw materials;

[0037]Step 2: Roasting at high temperature, place the ground raw materials in the combustion furnace for combustion, and add an appropriate amount of carbon powder inside, when the reaction temperature in the combustion furnace is heated to 800°C, the reaction time is kept at 2.5h, so that The metal elements inside the raw material form oxides wit...

Embodiment 3

[0044] The invention provides a process and method for recovering all metal elements in a waste power lithium battery, which specifically includes the following steps:

[0045] Step 1: Process the raw materials, rinse the waste lithium battery, rinse it repeatedly with clean water three times, wipe it with a cotton cloth, then disassemble the waste lithium battery, dry the internal raw materials of the waste lithium battery at high temperature, and use grinding The machine grinds the internal raw materials of waste power lithium batteries, and screens the internal raw materials for many times to remove large particle raw materials;

[0046] Step 2: Roasting at high temperature, place the ground raw material in the combustion furnace for combustion, and add an appropriate amount of carbon powder inside, when the reaction temperature in the combustion furnace is heated to 1100 ° C, the reaction time is kept at 3 hours, so that the raw material The internal metal elements form ox...

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Abstract

The invention discloses a recycling process and method for all metal elements in abandoned power lithium batteries, and specifically relates to the field of recycling of metal in the lithium batteries. The recycling process and method specifically includes the following steps of raw material processing, high-temperature roasting, oxygen injection stirring, waste gas processing, acid pickling, precipitation and drying. In the raw material roasting process, internal raw materials are subjected to reduction of carbon powder in advance, the oxygen injection stirring step is then conducted, oxide formed by manganese, lithium and cobalt is independently taken out in batches within all temperature ranges of heating, and therefore the metal elements in the raw materials can be sufficiently oxidized, sufficient purification of the metal elements is ensured, and the purification rate of the metal elements is increased. Compared with the existing poor effect of recycling the metal elements in theabandoned lithium batteries, the method is simple in process, low in operation cost and high in recycling rate of metal elements in railings, the utilization rate of the device is greatly increased,and no secondary pollution is caused.

Description

technical field [0001] The invention relates to the field of metal recovery in lithium batteries, more specifically, the invention relates to a process and method for recovering all metal elements in waste power lithium batteries. Background technique [0002] At present, a lithium battery is a primary battery that uses lithium metal or lithium alloy as the negative electrode material and uses a non-aqueous electrolyte solution. It is different from a rechargeable lithium-ion battery and a lithium-ion polymer battery. The inventor of the lithium battery is Edison. Due to the very active chemical properties of lithium metal, the processing, storage, and use of lithium metal have very high environmental requirements. Therefore, lithium batteries have not been used for a long time. With the development of microelectronics technology at the end of the 20th century, miniaturized equipment is increasing day by day, which puts forward high requirements for power supply, and lithium...

Claims

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Application Information

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IPC IPC(8): C22B7/00C22B23/00C22B23/02C22B26/12C22B47/00H01M10/54
CPCC22B7/001C22B7/006C22B7/008C22B23/02C22B23/0461C22B26/12C22B47/00H01M10/54Y02P10/20Y02W30/84
Inventor 曾桂生姚俊霞刘春力王忠兵周磊姬海燕
Owner NANCHANG HANGKONG UNIVERSITY
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