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Battery with protective sleeve

A protective cover and battery technology, applied in secondary batteries, battery pack parts, secondary battery repair/maintenance, etc., can solve the problems of battery fire and explosion, high risk of battery thermal runaway, etc., achieve high degree of automation, realize automatic Effects for operation and repeated use, simple structure

Inactive Publication Date: 2017-09-26
LUSHAN COLLEGE OF GUANGXI UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the battery temperature is higher, the heating effect is greater, the risk of thermal runaway of the battery is greater, and the battery fire and explosion are more likely to occur. In addition, the service life of the battery will be seriously affected. Therefore, the control of battery temperature is very important for the use of batteries. Both safety and service life have a great impact

Method used

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  • Battery with protective sleeve
  • Battery with protective sleeve
  • Battery with protective sleeve

Examples

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Effect test

Embodiment Construction

[0026] see Figure 1 to Figure 4 , in a preferred embodiment of the present invention, a battery with a protective case 2 includes a battery body 1 with a positive pole and a negative pole, the outer side of the battery body 1 is provided with a protective case 2, and the battery body 1 The positive pole 11 and the negative pole 12 penetrate the protective cover 2 and are located outside the protective cover 2. A closed space 21 is formed between the protective cover 2 and the battery body 1; a communication port 22 is opened on the protective cover 2, and a cooling device is installed at the communication port 22. Storage tank 3, the cooling storage tank 3 stores cooling and fire extinguishing substances, and the air pressure in the cooling storage tank 3 is greater than the air pressure in the closed space 21; the cooling storage tank 3 communicates with the closed space 21 through the communication port 22, and the communication port A diaphragm device 4 for sealing or open...

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Abstract

The invention provides a battery with a protective sleeve, and belongs to the technical field of batteries. The battery comprises a battery body with a positive electrode and a negative electrode, wherein the protective sleeve sleeves the battery body; a positive electrode post and a negative electrode post of the battery body run through the protective sleeve and are positioned on the outer side of the protective sleeve; a closed space is formed between the protective sleeve and the battery body; a communication opening is formed in the protective sleeve; a cooling storage tank is mounted at the communication opening; the cooling storage tank is filled with a cooling and fire-extinguishing substance; the gas pressure in the cooling storage tank is higher than that of the closed space; the cooling storage tank is communicated with the closed space through the communication opening; a diaphragm device for closing or opening the communication opening is mounted at the communication opening; the diaphragm device comprises a diaphragm and a framework; the diaphragm is made of a phase change material, and has the melting point of 55-75 DEG C; the framework encircles the outer edge of the diaphragm, and is connected with the protective sleeve. By virtue of a phase change principle, when the temperature of the battery is too high, the battery can be automatically cooled, so that the battery has certain practicality.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a battery with a protective case. Background technique [0002] In recent years, with the rapid development and application of batteries, the safety and stability of batteries have received widespread attention, and one of the main factors affecting battery safety and stability is temperature. When the battery temperature is higher, the heating effect is greater, the risk of thermal runaway of the battery is greater, and the battery fire and explosion are more likely to occur. In addition, the service life of the battery will be seriously affected. Therefore, the control of battery temperature is very important for the use of batteries. Both safety and service life have a great impact. [0003] To sum up, it is worth studying a series of issues such as how to prevent the explosion caused by the battery temperature runaway. Contents of the invention [0004] In view of the a...

Claims

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Application Information

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IPC IPC(8): H01M2/10H01M10/613H01M10/659H01M10/42
CPCH01M10/42H01M10/613H01M10/659H01M50/20Y02E60/10
Inventor 梁锡铅农春香覃晓捷
Owner LUSHAN COLLEGE OF GUANGXI UNIV OF SCI & TECH
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