Cylindrical lithium battery core bracket and power battery pack

Abstract

The invention discloses a cylindrical lithium battery core bracket and a power battery pack, wherein the cylindrical lithium battery core bracket comprises an inorganic foamed bracket, a first metal support bump and a second metal support bump; the inorganic foamed bracket is a foamed blocky structure integrally formed by being inorganically and formed; a plurality of uniformly arranged open type C-shaped grooves are arranged at two sides of the inorganic foamed bracket; the first metal support bump is embedded at the bottoms of the C-shaped grooves; and the second metal support bump is embedded at two sides of the C-shaped grooves. The cylindrical lithium battery core bracket disclosed by the invention is good in anti-explosion performance; smashing self-destruction of the foamed bracket can occur in a self-explosion process of a battery core; the explosion energy is absorbed; the impact energy is absorbed; and the safety performance of a new energy vehicle is improved.

Description

technical field [0001] The invention relates to the technical field of power batteries, in particular to a power battery pack for new energy vehicles. Background technique [0002] Lithium-ion power batteries are currently popular in my country, and lithium iron phosphate batteries refer to lithium-ion batteries that use lithium iron phosphate as a positive electrode material. [0003] There are many kinds of cathode materials for lithium-ion batteries, mainly lithium cobaltate, lithium manganate, lithium nickelate, ternary materials, lithium iron phosphate, etc. Among them, lithium cobalt oxide is the cathode material used in the vast majority of lithium-ion batteries at present, while other cathode materials have not been mass-produced in the market due to various reasons. Lithium iron phosphate is also one of the lithium-ion batteries. In terms of material principle, lithium iron phosphate is also an intercalation / deintercalation process, which is exactly the same as li...

AI Technical Summary

Problems solved by technology

[0008] In order to solve the deficiencies of the prior art, the present invention provides a lithium cell power battery assembly, which is firstly used to solve the problem of insufficient heat dissipation between the cells in the battery pack, and provides a controllable approximate constant temperature within a certain temperature range At the same time, it solves the problem of cell misalignment caused by the heating and expansion of the cell. At the same time, it is looking for a cheap, anti-explosion, non-combustible cell support. At the same time, it is easy to assemble and produce, modular, and compact in structure. , reduce usage and manufacturing costs

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