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Automatic flame-retardant lithium battery of electric vehicle

A technology for electric vehicles and lithium batteries, applied in battery pack components, isolation of batteries from their environment, circuits, etc., can solve the problem that lithium batteries cannot be automatically flame retardant, and achieve rapid flame retardant and low cost effects.

Inactive Publication Date: 2017-06-23
四川升能泰科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the existing lithium batteries cannot be automatically flame-retardant, and the purpose is to provide an automatic flame-retardant electric vehicle lithium battery to solve the above problems

Method used

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  • Automatic flame-retardant lithium battery of electric vehicle
  • Automatic flame-retardant lithium battery of electric vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] like figure 1 and figure 2 As shown in the figure, an automatic flame-retardant lithium battery for electric vehicles of the present invention includes an electrolyte 2, and is characterized in that it also includes a flame retardant 3 disposed in the electrolyte 2; the flame retardant 3 includes a hot-melt shell 31 and the flame retardant 33 disposed inside the hot-melt shell 31; the hot-melt shell 31 constitutes a closed cavity, and the flame retardant 33 is disposed inside the closed cavity.

[0026] When this embodiment is implemented, when the temperature of the lithium battery exceeds the standard and the temperature of the electrolyte 2 reaches the ignition point of the flammable and explosive substances in the battery, the hot-melt shell 31 is melted, and the flame retardant 33 is released from the inside of the hot-melt shell 31 and enters the electrolyte. 2. Prevent the battery from burning and realize the automatic flame retardant of the lithium battery.

Embodiment 2

[0028] like figure 2 As shown, in this embodiment, on the basis of Embodiment 1, the flame retardant 3 further includes a partition 34 arranged inside the closed cavity; the partition 34 divides the closed cavity into two or more closed chambers . The flame retardant 3 also includes a weighting agent 32; the weighting agent 32 and the flame retardant 33 are arranged in the closed room.

[0029] In the implementation of this embodiment, two or more closed chambers are provided with a weighting agent 32 and a flame retardant 33 . By adjusting the mass of the weighting agent 32 , the overall density of the flame retardant 3 is approximately the same as that of the electrolyte 2 . The flame retardant 3 is suspended in the electrolyte 2. When the hot-melt shell 31 is heated and melted, the flame retardant 33 enters the electrolyte 2 uniformly, and the battery is more quickly flame retardant.

Embodiment 3

[0031] like figure 2 As shown, in this embodiment, on the basis of Embodiment 2, the flame retardant 33 is preferably tetrabromobisphenol, and the weighting agent 32 is preferably lead powder.

[0032] In the implementation of this embodiment, the overall density of the flame retardant 3 is approximately the same as the density of the electrolyte 2 by adjusting the quality of the lead powder.

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Abstract

The invention discloses an automatic flame-retardant lithium battery of an electric vehicle. The automatic flame-retardant lithium battery comprises an electrolyte and a flame-retardant device arranged in the electrolyte; the flame-retardant device comprises a hot melting housing and a flame retardant arranged in the hot melting housing; a closed cavity is formed by the hot melting housing; the flame retardant is arranged in the closed cavity; and when the temperature of the lithium battery exceeds the standard, before the temperature of the electrolyte reaches an ignition point of an inflammable and explosive substance in the battery, the hot melting housing is melted, and the flame retardant is released from the inside of the hot melting housing and enters the electrolyte to prevent the battery from burning, so that automatic flame retardance of the lithium battery is achieved. According to the automatic flame-retardant lithium battery of the electric vehicle, the automatic flame retardance of the lithium battery is achieved through arranging the flame retardant in the hot melting housing.

Description

technical field [0001] The invention relates to a lithium battery for electric vehicles, in particular to an automatic flame-retardant lithium battery for electric vehicles. Background technique [0002] With the development of industry and the increase of social demands, automobiles play an important role in social progress and economic development. The rapid development of the automobile industry has promoted the development of important industries such as machinery, energy, rubber, and steel, but at the same time, it is also increasingly faced with serious problems of environmental protection and energy shortages. In order to solve these problems, electric vehicles have achieved great development and great technological progress. At the same time, electric vehicles have made great progress in battery system, electric drive system and vehicle control. [0003] In electric vehicles, the battery system is a key core component. As a power source, the battery requires high en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/10H01M50/249
CPCH01M50/24H01M50/20Y02E60/10
Inventor 钟东龙
Owner 四川升能泰科技有限公司
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