Pulse heating-based battery durability testing method, system and data table generation method

A technology of pulse heating and testing method, applied in the direction of secondary battery testing, battery, secondary battery, etc., can solve the problem of long test cycle and so on

Active Publication Date: 2019-11-19
TSINGHUA UNIV
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Problems solved by technology

[0004] Based on this, it is necessary to provide a battery pulse heating durability test method for the traditional power battery durability test, which requires a long period of low-temperature standing during the two charging and discharging processes, resulting in an excessively long test cycle. , system and data table generation method

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  • Pulse heating-based battery durability testing method, system and data table generation method
  • Pulse heating-based battery durability testing method, system and data table generation method

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[0067] In order to make the above-mentioned purpose, features and advantages of the present application more obvious and understandable, the specific implementation manners of the present application will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the application. However, the present application can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific implementation disclosed below.

[0068] It should be noted that when an element is referred to as being “disposed on” another element, it may be directly on the other element or there may also be an intervening element. When an element is referred to as being "connected to"...

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Abstract

The invention relates to a pulse heating-based battery durability testing method, a pulse heating-based battery durability testing system and a data table generation method. According to the battery pulse heating-based durability testing method, a to-be-tested battery is placed in a temperature box; and the temperature of the temperature box is set to be a first temperature. Pulse heating is performed on the lithium ion battery under a first pulse parameter until a pulse heating duration reaches a preset pulse lasting duration. The temperature of the temperature box is adjusted to be a secondtemperature, the capacity attenuation value of the to-be-tested battery is obtained under the second temperature, and then the durability of the to-be-tested battery is obtained. Before the capacity attenuation value of the to-be-tested battery is tested, continuous pulse heating is carried out; after heating is carried out for a period of time, the temperature rise and heat dissipation of the battery reach stable values, the temperature will not rise continuously; and the pulse heating does not need long-time low-temperature standing. Therefore, a lot of test time is saved, a test period is shortened, and meanwhile, the influence of the temperature of the battery on the durability of the battery can be verified through a lot of experiments.

Description

technical field [0001] The present application relates to the technical field of battery management, in particular to a battery pulse heating durability test method, system and data table generation method. Background technique [0002] With the development of the automobile industry, my country is the largest country in terms of automobile growth. Under the trend of global warming and rising oil prices in the world, new energy vehicles have become the focus of the current automobile industry research and development. At this stage, electric vehicles are the focus of the development of new energy vehicles, and the performance of electric vehicles will be closely dependent on the performance of lithium-ion power batteries. The durability of lithium-ion power batteries is an important indicator for judging the performance of the entire electric vehicle. The durability of lithium-ion power batteries is generally judged by the number of charge and discharge cycles required when...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/367G01R31/389G01R31/382G01R31/387G06F16/22
CPCG01R31/367G01R31/389G01R31/382G01R31/387G06F16/2282H01M10/48H01M10/4285G01R31/392Y02E60/10H01M10/615H01M10/633H01M10/637H01M10/443H01M2220/20
Inventor 秦宇迪卢兰光李亚伦欧阳明高李建秋
Owner TSINGHUA UNIV
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