Battery life test method, device and readable storage medium

Abstract

The disclosure relates to a battery life testing method, device and readable storage medium. The method includes: determining the battery capacity value of the battery; if the battery capacity value is greater than or equal to the preset capacity value, the current state of charge of the battery is the preset state of charge, and the standing time of the battery at the first preset temperature reaches the second For a preset duration, the battery is controlled to perform N rounds of charging and discharging operations. Each round of charging and discharging operations includes multiple charging operations and multiple discharging operations. Multiple charging operations are performed based on at least two current specifications, and multiple discharging operations are at least Based on two current specifications; after controlling the battery for N rounds of charging and discharging operations, add 1 to the test times record; re-execute the steps of determining the battery capacity value of the battery until the battery capacity value is less than the preset capacity value; if the battery capacity If the value is less than the preset capacity value, the battery life is determined according to the current value recorded by the number of tests. In this way, the battery life test can be accelerated and the efficiency of the battery life test can be improved.

Description

technical field [0001] The present disclosure relates to the technical field of batteries, and in particular, to a battery life testing method, device and readable storage medium. Background technique [0002] In recent years, with the shortage of non-renewable energy resources and rising crude oil prices, people's demand for green energy is getting higher and higher. At present, battery energy, one of the relatively mature green energy sources, is more and more widely used. [0003] Battery life is an important indicator to measure battery performance. With the rapid development of battery technology, the battery life in the field of electric vehicles has reached 2000 cycles or even more than 2500 cycles. At present, the life test method widely used in the process of battery research and development, inspection and selection is to conduct cycle tests under certain working conditions. The test for battery life analysis is relatively simple, and the test cycle is long, which ...

AI Technical Summary

Problems solved by technology

At present, the life test method widely used in the process of battery research and development, inspection and selection is to conduct cycle tests under certain working conditions. The test for battery life analysis is relatively simple, and the test cycle is long, which not only causes waste of resources and costs. increase, it will also lead to a slow progress in the research and development of battery products

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