Protection device convenient for low-temperature use of lithium battery

Abstract

The invention discloses a protection device convenient for low-temperature use of a lithium battery, and the protection device comprises a battery box; two binding posts are inserted into the upper end of the lithium battery box, a horizontal baffle is welded to the inner wall of the lithium battery box, a rectangular cavity is formed in the inner top of the lithium battery box, and a vertical baffle is welded to the inner wall of the rectangular cavity; the inner wall, located on one side of the vertical baffle, of the rectangular cavity is slidably connected with a push block and a power connection plate, the push block is connected with the vertical baffle through an air bag, the push block is fixedly connected with the power connection plate, the push block is made of an insulating material, and power connection blocks are arranged at the inner bottom and the inner top of the vertical baffle correspondingly. The internal strength of the electrorheological fluid can be changed according to the change of the running speed of the vehicle under different road conditions, namely the change of the internal power supply current, and the sliding plate can realize reciprocating motion by combining with the action of the reset spring, so that the piezoelectric ceramic can be collided for multiple times, the power supply to the capacitor can be realized, and an energy storage effect can be achieved.

Description

technical field [0001] The invention relates to the technical field of lithium batteries, in particular to a protection device for the low-temperature use of lithium batteries. Background technique [0002] Lithium battery is a type of battery that uses lithium metal or lithium alloy as the positive / negative electrode material and uses a non-aqueous electrolyte solution. Due to the very active chemical properties of lithium metal, the processing, storage, and use of lithium metal have very high environmental requirements. With the development of science and technology, lithium batteries have become the mainstream; [0003] Most of the existing lithium batteries are rechargeable lithium batteries. The electrolyte inside the battery, as an organic liquid, becomes viscous or even condenses at low temperatures, which greatly restricts the movement of conductive lithium salts inside. In this way, power generation The efficiency is very low, so that the normal power supply of the...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem in the prior art that the electrolyte inside the lithium battery becomes viscous or even condenses at low temperatures, which will affect the operation of the lithium battery. Proposed a protection device for low temperature use of lithium batteries

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