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High-altitude lithium battery protection device

A protection device, lithium battery technology, applied in the direction of batteries, secondary batteries, battery pack components, etc., can solve the problems of danger, negative electrode material damage, diaphragm rupture, etc., to improve safety and ensure the effect of air pressure

Inactive Publication Date: 2017-08-18
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

Lithium batteries have many advantages, but they also have fatal disadvantages, that is, the battery stability is poor, and it is easy to spontaneously ignite and explode in extreme environments, so reasonable management of lithium batteries is required
In a high-altitude environment, the negative electrode material of the lithium battery will be damaged or the diaphragm will be ruptured due to the drop in air pressure, resulting in a short circuit and danger. At present, there is no suitable protection device for lithium batteries in high-altitude areas, which reduces the safety of lithium batteries in high-altitude areas. safety

Method used

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  • High-altitude lithium battery protection device
  • High-altitude lithium battery protection device

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Effect test

Embodiment 1

[0033] like figure 1 As shown, the high-altitude lithium battery protection device of the present invention includes a lithium battery box 1, an air pressure pump 3 and an air pressure sensor 4; the lithium battery box 1 adopts an airtight box; the air pressure pump 3 is arranged outside the lithium battery box 1, And it communicates with the inside of the lithium battery box 1 ; the air pressure sensor 4 is arranged inside the lithium battery box 1 .

[0034] During the implementation of this embodiment, the lithium battery box 1 adopts an airtight box to maintain the air pressure in the lithium battery box 1 in an airtight manner, and then the air pump 3 is arranged outside the lithium battery box 1 and connected to the inside of the lithium battery box 1. Connected, and then the air pressure sensor 4 is arranged inside the lithium battery box 1 . When the air pressure sensor 4 detects that the air pressure inside the lithium battery box 1 is less than the threshold value, ...

Embodiment 2

[0036] like figure 1 As shown, on the basis of Embodiment 1, this embodiment also includes a pressure relief valve 7 and a pneumatic whistle 8; the pressure relief valve 7 is arranged on the outer wall of the lithium battery box 1, and the inlet end of the pressure relief valve 7 extends into the inside of the lithium battery box 1;

[0037] During the implementation of this embodiment, when the pressure inside the lithium battery box 1 is higher than the threshold, the pressure relief valve 7 releases the pressure of the air inside the lithium battery box 1. During the pressure relief, the pressure relief airflow flows through the pneumatic whistle 8, and the pneumatic whistle 8 sends out sound. When the pressure relief valve 7 frequently releases the pressure, it means that the pressure in the lithium battery box 1 fluctuates continuously, and the lithium battery box 1 needs to be checked. Battery safety for use at high altitudes.

Embodiment 3

[0039] like figure 1As shown, on the basis of Embodiment 2, this embodiment also includes a lithium battery pack 2, a refrigeration pipeline 6 and a refrigeration pump 5; the lithium battery pack 2 is arranged inside the lithium battery box 1; the refrigeration pipeline 6 is arranged Outside the lithium battery pack 2, and in contact with the lithium battery pack 2 through heat-dissipating silica gel; the refrigeration section of the refrigeration pipeline 6 extends out of the lithium battery box 1 and is connected to the refrigeration pump 5; the refrigeration pump 5 pairs with the refrigeration pipeline 6 The fluid inside is refrigerated and pumped to flow along the refrigeration pipeline 6.

[0040] When this embodiment is implemented, the lithium battery box 1 adopts an airtight box, which cannot dissipate heat through an ordinary ventilation device, so the present invention arranges the cooling pipeline 6 outside the lithium battery pack 2, and contacts the lithium batter...

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Abstract

The invention discloses a high-altitude lithium battery protection device which comprises a lithium battery box, a gas pressure pump and a gas pressure sensor; the lithium battery box adopts an airtight box; the gas pressure pump is arranged outside the lithium battery box and is communicated with the inside of the lithium battery box; the gas pressure sensor is arranged inside the lithium battery box. The high-altitude lithium battery protection device disclosed by the invention has the benefits that through arranging the gas pressure pump, a gas pressure detector and the airtight box, the stability of gas pressure in the working environment of a lithium battery is ensured, so that the short circuit caused by the damage of the lithium battery due to a reduction in the ambient gas pressure can be avoided, therefore, the use safety of the lithium battery in a high-attitude area is improved.

Description

technical field [0001] The invention relates to a lithium battery of an electric vehicle, in particular to a high-altitude lithium battery protection device. Background technique [0002] With the development of industry and the increase of social demand, 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 increasingly facing serious problems of environmental protection and energy shortage. In order to solve these problems, electric vehicles have achieved considerable development and great technological progress. At the same time, electric vehicles have made great progress in battery systems, electric drive systems, and vehicle control. [0003] In electric vehicles, the battery system is a key core component. As a power source, the battery requires high energy density, high...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/10H01M10/48H01M10/613H01M10/625H01M10/635H01M50/204
CPCH01M10/48H01M10/486H01M10/613H01M10/625H01M10/635H01M2220/20H01M50/20Y02E60/10
Inventor 钟东龙
Owner 四川升能泰科技有限公司
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