Recovery method for lithium ion batteries

A lithium-ion battery and recycling method technology, applied in the field of lithium-ion battery recycling, can solve problems such as low utilization rate and poor recycling efficiency, and achieve the effects of controlling battery costs, avoiding potential threats, and reducing use costs

Active Publication Date: 2015-10-28
哈尔滨巴特瑞资源再生科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Currently, existing technologies for recycling Li-ion batteries have poor recycling efficiencies and low utilization rates

Method used

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  • Recovery method for lithium ion batteries
  • Recovery method for lithium ion batteries
  • Recovery method for lithium ion batteries

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Embodiment Construction

[0019] Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings. In the interest of clarity and conciseness, not all features of an actual implementation are described in this specification. It should be understood, however, that in developing any such practical embodiment, many implementation-specific decisions must be made in order to achieve the developer's specific goals, such as meeting those constraints related to the system and business, and those Restrictions may vary from implementation to implementation. Moreover, it should also be understood that development work, while potentially complex and time-consuming, would at least be a routine undertaking for those skilled in the art having the benefit of this disclosure.

[0020] Here, it should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only the device structure and / or processing steps closely related to the ...

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Abstract

The invention provides a recovery method for lithium ion batteries. The recovery method includes the following steps: performing voltage and internal resistance testing to lithium ion batteries to be recovered, and repairing and activating the lithium ion batteries if the test result is within the preset range, otherwise scrapping the lithium ion batteries; sequentially performing self discharge standing, discharge and constant capacity treatment to the repaired and activated lithium ion batteries, then performing stepped sorting to the lithium ion batteries after constant capacity treatment; scrapping the lithium ion batteries unqualified of stepped sorting, and performing stepped battery assembly testing to the lithium ion batteries qualified of stepped sorting, so as to put the lithium ion batteries subjected to the stepped battery assembly testing into storage for recovery. The recovery method for lithium ion batteries, provided by the invention, brings the lithium ion batteries into full play, thereby reducing the use cost of lithium ion batteries.

Description

technical field [0001] The invention relates to battery technology, in particular to a recovery method for lithium ion batteries. Background technique [0002] The service life of lithium-ion batteries in the general environment is about 20 years, but when used for vehicle power, if the battery capacity decays to less than 80% of the initial capacity, the mileage of electric vehicles will be significantly reduced, so the actual use time About 3 to 8 years. Some of these used batteries are still useful, such as for grid energy storage, or as a power source for low-speed vehicles such as electric field vehicles. Currently, existing technologies for recycling lithium-ion batteries have poor recycling efficiencies and low utilization rates. Contents of the invention [0003] A brief overview of the invention is given below in order to provide a basic understanding of some aspects of the invention. It should be understood that this summary is not an exhaustive overview of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/054
CPCY02W30/84H01M10/54
Inventor 孔令敏夏绍裘任勇
Owner 哈尔滨巴特瑞资源再生科技有限公司
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