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

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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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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