Sealing assembly and lithium battery with same

Abstract

The invention relates to a sealing assembly and a lithium battery with the same. The sealing assembly comprises a positive electrode post, a cover plate and an inner pressure ring which are sequentially arranged, and further comprises a sealing ring, a pure aluminum sleeve and a pure aluminum belt, wherein through holes with superposed central axes are formed in the cover plate and the inner pressure ring; the sealing ring is nested into the through hole of the cover plate; the positive electrode post comprises a first electrode post and a second electrode post; the second electrode post is inserted into a through hole of the sealing ring; one end of the second electrode post is riveted with the inner pressure ring; the first electrode post and the second electrode post are insulated from and sealed with the cover plate through the sealing ring; the pure aluminum sleeve enwraps the inner pressure ring; the pure aluminum sleeve is insulated from the cover plate through the sealing ring; the pure aluminum belt is connected with the pure aluminum sleeve. By adopting the structure that the pure aluminum sleeve enwraps the inner pressure ring and the pure aluminum belt is connected with the pure aluminum sleeve, the structure of the sealing assembly inside the lithium battery is ensured to be a full-aluminum structure; through the structural design, the problem of storage of the lithium battery in a high-temperature environment is solved relatively well.

Description

technical field [0001] The invention relates to the field of batteries, in particular to a sealing assembly and a lithium battery including the sealing assembly. Background technique [0002] Lithium battery is a type of battery that uses lithium metal or lithium alloy as the negative electrode material and uses a non-aqueous electrolyte solution. Lithium batteries should not be stored in a high temperature environment. If the ambient temperature is too high, it will shorten the service life of the battery and affect all aspects of the performance of the battery. In severe cases, the battery may explode and endanger personal and property safety. [0003] To solve the problem of high-temperature storage of lithium batteries, it is necessary not only to improve the storage environment around lithium batteries, but also to improve the structure of lithium batteries themselves, so as to find more suitable solutions to deal with the impact of various extreme environments and clim...

AI Technical Summary

Problems solved by technology

Lithium batteries should not be stored in high-temperature environments. If the ambient temperature is too high, it will shorten the service life of the battery and affect all aspects of the performance of the battery. In severe cases, the battery may explode and endanger personal and property safety.

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