Fire-resistant lithium battery and manufacturing process thereof

Abstract

The invention discloses a fire-resistant lithium battery and a manufacturing process thereof. The fire-resistant lithium battery comprises a shell body, partition plates, a base, a positive electrodematerial, a negative electrode material, a diaphragm, pressure gaskets, a mounting block, a grid current collecting sheet, an electrode connecting line, a pole cover, a positive pole, a negative pole,rivets, aluminum foil, a polymer PTC layer, an electrolyte, copper foil, a heat-resistant ceramic layer, rubber seal rings, an electrolyte injection port, a soldering terminal, a supporting column, arupture disk, a top a cover and vent holes, wherein the partition plates are welded to two corresponding ends of one side in the middle of the bottom part of the inner wall of the shell body, the base is installed on one side of the partition plates, aluminum foil is arranged on the top part of the base, the aluminum foil is sprayed with the positive electrode material, two corresponding ends ofone side of the positive electrode material are provided with the polymer PTC layer, the copper foil is arranged on one side of the aluminum foil, the negative electrode material is sprayed on the copper foil, and the heat-resistant ceramic layer is mounted on two corresponding ends of one side of the negative electrode material. The fire-resistant lithium battery has the advantages of simple structure, good fireproof and explosion-proof performance, and safety in use.

Description

technical field [0001] The invention relates to the technical field of lithium batteries, in particular to a refractory lithium battery and a manufacturing process thereof. Background technique [0002] Lithium battery is a kind of battery that uses lithium metal or lithium alloy as the negative electrode material and uses non-aqueous electrolyte solution. Lithium metal battery was first proposed and studied by Gilbert N.Lewis in 1912. In the 1970s, M.S.Whittingham proposed and began to study Lithium-ion batteries, due to the very active chemical properties of lithium metal, make the processing, storage and use of lithium metal very demanding on the environment. With the development of science and technology, lithium batteries have become the mainstream now. Lithium batteries are used for a long time A large amount of heat will be generated in the process. The structure of the lithium battery in the prior art is complex, the performance of fire resistance and explosion prote...

AI Technical Summary

Problems solved by technology

[0002] Lithium battery is a kind of battery that uses lithium metal or lithium alloy as the negative electrode material and uses non-aqueous electrolyte solution. Lithium metal battery was first proposed and studied by Gilbert N.Lewis in 1912. In the 1970s, M.S.Whittingham proposed and began to study Lithium-ion batteries, due to the very active chemical properties of lithium metal, make the processing, storage and use of lithium metal very demanding on the environment. With the development of science and technology, lithium batteries have become the mainstream now. Lithium batteries are used for a long time A large amount of heat will be generated in the process. The structure of the lithium battery in the prior art is complex, the performance of fire resistance and explosion protection is poor, it is easy to cause the explosion of the lithium battery, and it is unsafe to use. Therefore, it is necessary to design a fire-resistant lithium battery and its manufacturing process.

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