Prediction method and device of thermal-runaway safety of power battery and computer-readable storage medium

A technology of power battery and prediction method, used in measurement devices, computer-aided design, batteries, etc.

Active Publication Date: 2018-08-24
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Based on this, it is necessary to provide a method, device and computer-readable storage medium for predicting the safety of a power bat

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  • Prediction method and device of thermal-runaway safety of power battery and computer-readable storage medium
  • Prediction method and device of thermal-runaway safety of power battery and computer-readable storage medium
  • Prediction method and device of thermal-runaway safety of power battery and computer-readable storage medium

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Embodiment Construction

[0069] In order to make the purpose, technical solutions and advantages of this application clearer, the following describes the method, device and computer-readable storage medium for predicting the safety of power battery thermal runaway of this application in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the application, and are not used to limit the application.

[0070] See figure 1 , Provide a prediction method for the safety of power battery thermal runaway. The method for predicting the safety of power battery thermal runaway includes the following steps:

[0071] S10, obtain the self-generated heat initial temperature T of the first power battery 0 .

[0072] It can be understood that the first power battery may be a power battery to be prepared. The first power battery may be a half battery or a modeled full battery. The preparation materials of th...

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Abstract

The invention relates to a prediction method and device of thermal-runaway safety of a power battery and a computer-readable storage medium. Initial autogenetic-heat temperature of the first power battery is obtained; the highest temperature at the time when a thermal runaway of the first power battery occurs is obtained on the basis of a thermal-runaway reaction kinetics model of the power battery; and the thermal-runaway safety of the first power battery is judged according to a relationship curve of the initial autogenetic-heat temperature and the highest temperature rise. According to theprediction method of the thermal-runaway safety of the power battery, the thermal-runaway safety of the first power battery can be predicted in a case of not making the whole battery, necessary processes of assembling the whole power battery in a traditional safety design process are reduced, a power-battery design and development cycle is shortened, design and development costs are saved, and efficiency of power-battery safety design is improved.

Description

Technical field [0001] The present invention relates to the field of battery technology, and in particular to a method, a device and a computer-readable storage medium for predicting the safety of power battery thermal runaway. Background technique [0002] Electric vehicles are the main body of new energy vehicles, and power batteries are the core energy source of electric vehicles. Lithium-ion power batteries (hereinafter referred to as "power batteries") have advantages in energy density and cycle life, and are one of the main choices for power sources for electric vehicles. Due to the limited vehicle space, in order to increase the range of electric vehicles, in addition to installing more power batteries in the limited vehicle space, it is necessary to increase the specific energy of the power batteries. In the event of a safety accident, the energy released by the thermal runaway of the power battery with higher specific energy is more concentrated, and the thermal runaway...

Claims

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Application Information

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IPC IPC(8): G06F17/50G06Q10/04
CPCG06Q10/04G06F30/20H01M10/48H01M10/486H01M2200/00G06F2119/06G06F30/367Y02E60/10G01K17/00G06F2111/10
Inventor 冯旭宁郑思奇何向明王莉欧阳明高任东生卢兰光
Owner TSINGHUA UNIV
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