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A dismantling method and device for a lithium battery case

A lithium battery and shell technology, which is applied in the field of lithium battery recycling and recycling, can solve problems such as low shell disassembly efficiency, and achieve the effects of convenient separation, easy recovery, and easy large-scale use.

Active Publication Date: 2018-09-18
HEFEI GUOXUAN HIGH TECH POWER ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem of low dismantling efficiency of lithium-ion battery shells in the prior art, the object of the present invention is to provide a method and device for dismantling lithium-ion battery shells, aiming at improving the dismantling efficiency of lithium-ion battery shells and reducing recycling costs

Method used

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  • A dismantling method and device for a lithium battery case
  • A dismantling method and device for a lithium battery case
  • A dismantling method and device for a lithium battery case

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A method for dismantling a lithium battery casing, comprising the following steps:

[0031] (1) Disassemble the battery pack or battery module into single lithium batteries after discharge;

[0032] (2) Place the lithium battery on the laser cutting platform, and make the cover end of the lithium battery protrude from the outside of the laser cutting platform and its length outside the laser cutting platform is 1 / 5 of the total height of the battery; then use laser cutting The device cuts the connection between the cover plate and the shell of the lithium battery, and the position of the ring cut is 0.2cm away from the cover plate, so that the shell and the cover plate are separated;

[0033] (3) Pull the cover away from the case, so that the cell and tabs are exposed from the case, and the length of the cell exposed to the case is 1 / 5 of the height of the entire cell; then use a laser cutter to cut off the tabs, so that The cover plate is separated from the battery co...

Embodiment 2

[0035] A method for dismantling a lithium battery casing, comprising the following steps:

[0036] (1) Disassemble the battery pack or battery module into single lithium batteries after discharge;

[0037] (2) Place the lithium battery on the laser cutting platform, and make the cover end of the lithium battery protrude from the outside of the laser cutting platform and its length outside the laser cutting platform is 1 / 2 of the total height of the battery; then use laser cutting The device cuts the connection between the cover plate and the shell of the lithium battery, and the position of the ring cut is 1.5cm away from the cover plate, so that the shell and the cover plate are separated;

[0038] (3) Pull the cover away from the case, so that the cell and tabs are exposed from the case, and the length of the cell exposed to the case is 1 / 2 of the height of the entire cell; then use a laser cutter to cut off the tabs, so that The cover plate is separated from the battery co...

Embodiment 3

[0040] Such as figure 1 , 2 , 3, a device for dismantling a lithium battery shell, including a work frame 1, the two ends of the work frame 1 are respectively provided with a conveyor belt 2 and a laser cutting platform 7, and the laser cutting platform 7 is provided with Laser cutter; a stop baffle 5 is erected on the work frame 1 at the output end of the conveyor belt 2, and a guide groove 12 is fixed on one side of the work frame 1, and the first manipulator 11 and the first manipulator 11 are respectively slid on the guide groove 12 The second manipulator 4.

[0041] In a further solution, the bottom end of the stop baffle 5 is fixed with an inductor for sensing a lithium battery 8, and the output end of the inductor is connected to the motor of the conveyor belt 2 through a normally closed relay.

[0042] In a further solution, the middle of the conveyor belt 2 is provided with limit side baffles 3 in parallel along its running direction, and the distance L between the ...

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Abstract

The invention discloses a disassembling method and apparatus for a lithium battery shell. A battery pack or a battery module is disassembled into single lithium batteries firstly; then the connecting places of the cover plates and the shells of the lithium batteries are annularly cut by a laser cutter to enable the shells and the cover plates to be separated; the cover plates are released from the shells through pulling to expose cells and tabs out of the shells; and then the tabs are cut by the laser cutter so as to separate the cover plates and the cells. By adoption of the disassembling method and apparatus, the separation of the battery shells, the cover plates and the internal cells can be performed safely and efficiently; therefore, the recycling efficiency of the overall battery is greatly improved; meanwhile, the completeness of the internal cells can be maintained in the laser cutting process; the subsequent separation of the cells and the shells can be carried out conveniently; and in addition, the overall separation process does not generate secondary pollution, so that the disassembling method and apparatus are clean and environment-friendly.

Description

technical field [0001] The invention relates to the field of recovery and recycling of lithium batteries, in particular to a method and device for dismantling a lithium battery casing. Background technique [0002] Lithium-ion batteries have the advantages of small self-discharge, high energy density, long cycle life, no memory effect, clean and pollution-free, and are widely used in portable mobile devices, electric vehicles and hybrid vehicles. [0003] According to statistics from authoritative departments, as of 2013, the production capacity of vehicle-mounted lithium-ion batteries alone has exceeded 4,400 MWh. times. Such a huge production capacity and consumer market determine that hundreds of megawatt-hours of lithium-ion batteries are scrapped or retired every year, and the number of scrapped batteries will continue to increase in the next few decades. In scrapped lithium-ion batteries, there are abundant metal resources such as copper and aluminum, a large number ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/54
CPCY02W30/84
Inventor 王丰方宜温建峰武行兵
Owner HEFEI GUOXUAN HIGH TECH POWER ENERGY
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