High-energy and high-power density lithium battery system with flame-retardant and explosion-proof functions

A high power density, high energy technology, applied in the field of lithium battery systems, can solve the problems of high energy density, high thermal runaway, explosion risk, etc., to reduce diffusion or spread, work reliably, and prevent overheating or explosion.

Active Publication Date: 2019-05-07
SUN YAT SEN UNIV
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  • Abstract
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Problems solved by technology

However, due to the material characteristics of lithium-ion batteries, high-energy-density, high-power-density battery systems have higher risks of thermal runaway and explosion

Method used

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  • High-energy and high-power density lithium battery system with flame-retardant and explosion-proof functions
  • High-energy and high-power density lithium battery system with flame-retardant and explosion-proof functions

Examples

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Embodiment Construction

[0013] refer to figure 1 , has flame retardant and explosion-proof functions, and is suitable for lithium battery systems with high energy density and high power density. Control Strategy.

[0014] refer to figure 2 , a high-energy, high-power-density lithium battery system with flame-retardant and explosion-proof functions includes several battery modules, each battery module is installed in a partition, and the battery modules in the partition are electrically connected to the outside through a circuit breaker, and the partition is a sealed structure And connect the non-conductive cooling medium through the liquid valve. The mechanical structure of the battery system adopts a sealed partition design, and the entire space is divided into many separate small partitions; a battery module is stored in each partition, which can effectively reduce the spread or spread of battery explosion or combustion disasters, and play an explosion-proof role. The purpose of flame retardant...

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PUM

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Abstract

The invention discloses a high-energy and high-power density lithium battery system with flame-retardant and explosion-proof functions. The system comprises a plurality of battery modules, each battery module is installed in a partition, the battery modules in the partition are electrically connected with the external portion through a disconnecting switch, and the partition is a seal structure and communicates with a non-conductive cooling medium through a liquid valve. The system can avoid accidents caused by thermal runaway or explosion risks to ensure the safer and more reliable operationof the whole battery system.

Description

technical field [0001] The invention relates to a lithium battery system, in particular to a high-energy, high-power-density lithium battery system with flame-retardant and explosion-proof functions. Background technique [0002] With the enhancement of people's awareness of environmental protection and the popularization of concepts such as green travel, new energy vehicles are gradually accepted by people. In order to eliminate people's anxiety about the mileage of electric vehicles and meet people's needs for fast charging of electric vehicles, lithium-ion batteries with high energy density, high charging rate, and high power density have been developed by manufacturers. However, due to the material characteristics of lithium-ion batteries, high-energy-density, high-power-density battery systems have higher risks of thermal runaway and explosion. Contents of the invention [0003] In order to overcome the above-mentioned problems, the present invention provides a high-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/10H01M2/12H01M10/0525H01M10/058H01M10/42H01M10/613H01M10/625H01M10/6567H01M50/20H01M50/317
CPCY02E60/10Y02P70/50
Inventor 李军谭晓军
Owner SUN YAT SEN UNIV
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