Battery life test method and device and readable storage medium
A technology for battery life and testing methods, applied in measuring devices, measuring electricity, measuring electrical variables, etc., can solve the problems of waste of resources, long test cycle, single battery life analysis and test, etc.
Active Publication Date: 2021-02-02
BYD CO LTD
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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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[0052] 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.
[0053] In order to solve the problems in the related art that the battery life test is relatively simple and the test period is long, the present disclosure provides a battery life test method, device and readable storage medium. Please refer to figure 1 , figure 1 It is a flow chart of a battery life testing method according to an exemplary embodiment, and the method can be applied to an electronic device with processing capabilities, such as a processor, a battery management unit (Battery Management Unit, BMU) and the like. Such as figure 1 As shown, the method may include the following steps.
[0054] In step 11, a battery capacity value of the battery...
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The invention relates to a battery life test method and device and a readable storage medium. The method comprises the steps of determining a battery capacity value of a 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 duration of the battery at the first preset temperature reaches the first preset duration, the battery is controlled to perform N rounds of charging and discharging operations, each round of charging and discharging operation comprises multipletimes of charging operation and multiple times of discharging operation, wherein the multiple charging operations are carried out at least based on two current specifications, and the multiple discharging operations are carried out at least based on two current specifications; after controlling the battery to carry out N rounds of charging and discharging operations, adding 1 to the test frequencyrecord; re-executing the step of determining the battery capacity value of the battery until the battery capacity value is smaller than the preset capacity value; and if the battery capacity value issmaller than the preset capacity value, determining the service life of the battery according to the current value of the test frequency record. Therefore, the battery life test can be accelerated, and the battery life test efficiency is 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 ...
Claims
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Login to View More IPC IPC(8): G01R31/392G01R31/387
CPCG01R31/392G01R31/387
Inventor 尹韶文孙嘉品马明君
Owner BYD CO LTD