Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A sorting method for decommissioned battery modules

A battery module and battery technology, which is applied in the repair/maintenance of secondary batteries, can solve the problem of high sorting costs, and achieve the effects of avoiding rapid capacity decay, saving costs, and improving sorting efficiency.

Active Publication Date: 2020-12-29
CHINA AVIATION LITHIUM BATTERY LUOYANG
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for sorting decommissioned battery modules, which is used to solve the problem of high cost of dismantling decommissioned battery modules into single cells for sorting in the prior art

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A sorting method for decommissioned battery modules
  • A sorting method for decommissioned battery modules

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0027] The decommissioned battery module of the present invention adopts the method of paralleling the single cells first and then connecting them in series. The module sorting method mainly includes the following steps:

[0028] Carry out constant current charging or constant voltage charging to the decommissioned battery module, and stop charging when the voltage of the decommissioned battery module or the voltage of the single cells therein reaches a first set value. Constant current charging or constant voltage charging is performed on each single string of batteries, and the cut-off mode for stopping charging of each single string of batteries is when the voltage of any single battery in the single string of batteries reaches the second set value. After charging is completed, conduct a K value test for each single string of batteries. ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to an ex-service battery module sorting method. A battery module does not need to be split, single-series batteries in the battery module are charged, then, a value K is detected, after discharging is performed, the direct current internal resistance is detected, the battery module can be sorted, and the battery module with the qualified value K and the direct current internal resistance of the single-series batteries can be put in storage for stepped utilization. Compared with a sorting method for splitting the battery module into monomer batteries, the battery splittingstep is omitted, during charging and discharging of the batteries, single-series batteries just need to be charged and discharged, each monomer battery does not need to be charged and discharged, theworking efficiency is improved, the certain cost is saved, according to the sorting method not splitting the battery modules, it is effectively ensured that the preliminarily-qualified battery modulecan be sorted, the sorted battery module can be directly used for a microgrid energy storage system, and the phenomenon that the capacity is rapidly declined due to the fact that ex-service battery modules are directly used is avoided.

Description

technical field [0001] The invention belongs to the technical field of power battery decommissioning treatment, and in particular relates to a method for sorting decommissioned battery modules. Background technique [0002] With the strong support of the state, my country's new energy automobile industry has developed rapidly, especially since 2014, the market has experienced explosive growth. According to statistics from the China Association of Automobile Manufacturers, the sales volume of new energy vehicles in China reached 507,000 in 2016, and the cumulative market volume reached 1 million. In 2015, the output of new energy vehicles in my country was 340,500, accounting for more than 60% of the global output of more than 500,000; the cumulative amount of scrapped lithium batteries was about 20,000 to 40,000 tons, and the market capacity was huge. It is predicted that by around 2020, the cumulative amount of scrapped power batteries in my country is expected to reach 20...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/42
CPCH01M10/42Y02E60/10
Inventor 高万兵赵艳艳
Owner CHINA AVIATION LITHIUM BATTERY LUOYANG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com