Method and device for determining cycle life of battery, storage medium and electronic equipment

A cycle life and battery cycle technology, which is applied to measuring devices, measuring electricity, and measuring electrical variables, etc., can solve the problems of unpredictable lithium-ion battery cycle life, complexity, and unreliable test results, so as to save test resources and simplify the process , reliable results

Active Publication Date: 2020-12-01
SVOLT ENERGY TECHNOLOGY CO LTD
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Problems solved by technology

[0005] The purpose of this disclosure is to provide a method, device, storage medium and electronic equipment for determining the cycle life of a battery, which can solve the problem of testing the cycle life of a lithium-ion battery in the related art, which requires complex hardware, and the test results are unreliable and unpredictable. Technical issues such as cycle life of lithium-ion batteries under other test conditions

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  • Method and device for determining cycle life of battery, storage medium and electronic equipment
  • Method and device for determining cycle life of battery, storage medium and electronic equipment
  • Method and device for determining cycle life of battery, storage medium and electronic equipment

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[0062] Specific embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.

[0063] An exemplary embodiment of the present disclosure provides a method for determining the cycle life of a battery. The method may be executed by an electronic device, and the electronic device may be, for example, a computer terminal. The batteries in the embodiments of the present disclosure are all secondary batteries, and a lithium-ion battery is taken as an example for illustration. see figure 1 , the method for determining the cycle life of the battery includes steps S110 to S160. specific:

[0064] Step S110: Obtain at least four sets of state parameters of lithium-ion batteries with known cycle life, and first cycle data corresponding to the st...

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Abstract

The invention relates to a method and device for determining the cycle life of a battery, a storage medium and electronic equipment, and solves the technical problems that complex hardware needs to bebuilt when the cycle life of a lithium-ion battery is tested, and the cycle life of the lithium-ion battery under other test conditions cannot be predicted. The method comprises the following steps:acquiring state parameters of at least four groups of lithium-ion batteries with known cycle life and cycle data corresponding to the state parameters; obtaining a first intercept according to the first cycle data and a first preset calculation formula; optimizing an influence factor according to the at least four groups of state parameters, the first intercept and a second preset calculation formula; obtaining a second state parameter of a target lithium-ion battery with unknown cycle life, and obtaining a second intercept according to the optimized influence factor, the second state parameter and the second preset calculation formula; obtaining the cycle life of the target lithium-ion battery according to the second state parameter, the second intercept, the optimized influence factor and a third preset calculation formula; and outputting the cycle life of the target lithium-ion battery.

Description

technical field [0001] The present disclosure relates to the battery industry, in particular to a method, device, storage medium and electronic equipment for determining the cycle life of a battery. Background technique [0002] In the battery industry, the cycle life of the battery directly affects the service life of the battery pack, which in turn affects the service life of related products using the battery, such as the total mileage and service life of electric vehicles. If the battery life is short, the battery pack will be replaced before the electric vehicle is scrapped, which will greatly increase the after-sales cost and reduce the brand reputation. Therefore, it is necessary to quickly predict the battery life. [0003] At present, the mainstream of the battery industry is lithium-ion batteries, and the cycle life of lithium-ion batteries is an important indicator of its performance. For the various use environments of electric vehicles, it is necessary to know ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/392G01R31/367G01R31/387
CPCG01R31/392G01R31/367G01R31/387Y02E60/10
Inventor 王旭李峰宇何见超陈森王连旭陈思
Owner SVOLT ENERGY TECHNOLOGY CO LTD
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