A heat-insulated and flame-retardant new energy battery box

Abstract

The invention discloses a heat-insulating and flame-retardant new energy battery box, which comprises a battery box body and an upper cover of the box body, the battery box box body and the box body upper cover are connected by buckles, and the battery box box body and the box body upper cover The inner surface of each is equipped with a heat-insulating and flame-retardant layer; the heat-insulating and flame-retardant layer is composed of polycarbonate, modified fiber and flame retardant; the mass ratio of polycarbonate, modified fiber and flame retardant is 50~ 80:10~20:0.2~2; wherein, the modified fiber includes modified glass fiber and chemical fiber. The invention discloses a new type of heat-insulating and flame-retardant new energy battery box, which can make the new energy battery less disturbed by the external temperature when it is working, and can also prevent the battery from Dangers such as explosion during use.

Description

technical field [0001] The invention relates to the field of new energy battery boxes, in particular to a heat-insulating and flame-retardant new energy battery box. Background technique [0002] New energy, also known as unconventional energy, refers to various forms of energy other than traditional energy, and refers to energy that has just begun to be developed and utilized or is being actively researched and yet to be promoted, such as solar energy, geothermal energy, wind energy, ocean energy, biomass energy and nuclear fusion energy etc. With the rapid development of new energy electric vehicles, the requirements for the energy density of power batteries are getting higher and higher, and the battery box is used as the carrier of power batteries. At present, the battery box of the power battery system is mostly composed of a single structure of metal material, mainly because the battery generates heat during charging and discharging. This single structure of metal mat...

AI Technical Summary

Problems solved by technology

However, this battery box has some major disadvantages. For example, when the temperature is high outdoors in summer, the temperature inside the battery box rises faster, and the battery capacity decays faster at high temperatures, which affects the battery life; when the temperature is low in winter, the inside of the battery box It is easy to cool down more in a short period of time. Fast charging of batteries at low temperatures (such as below -10°C) has safety risks, and the battery energy cannot be fully released. In addition, if a combustion accident occurs during battery use, the temperature of the box will drop. Rising, the heat generated by the metal material with high thermal conductivity will cause the surrounding flammable and explosive materials to burn or even explode

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