A lithium iron phosphate battery cell

CN224342359UActive Publication Date: 2026-06-09ZHEJIANG XINGHAI ENERGY TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG XINGHAI ENERGY TECH
Filing Date
2025-05-20
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing lithium iron phosphate cells suffer from poor sealing and potential reactions between the fixative and the electrolyte, affecting cell performance and safety.

Method used

The battery adopts a modular cap, including components such as connecting pieces, explosion-proof pieces, top caps, and sealing rings. Through welding and sealing ring design, it ensures that the gas inside the battery cell is not prone to expansion and explosion, and prevents the entry of external substances. Materials with good heat resistance and conductivity are used to ensure structural stability and sealing.

Benefits of technology

It improves the sealing and safety of the battery cell, extends its service life, reduces the impact of external substances on the battery cell, and ensures the stability and reliability of the battery cell under abnormal conditions.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224342359U_ABST
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Abstract

The utility model relates to lithium iron phosphate battery cell technical field especially relates to a kind of lithium iron phosphate battery cell. Including: steel shell, the roll core being arranged in the steel shell interior and the combined cap being arranged on the steel shell, the combined cap includes: the connecting piece being connected to the steel shell end portion closely, the explosion-proof sheet being arranged above the connecting piece, the top cap being arranged above the explosion-proof sheet and the sealing ring being arranged in the connecting piece outer periphery and sealing the top cap and the explosion-proof sheet;Steel ring is arranged between the top cap and the explosion-proof sheet;Isolation ring is arranged between the explosion-proof sheet and the connecting piece.The utility model provides a kind of lithium iron phosphate battery cell with the advantages such as good sealing, high security, good stable firmness, high work efficiency, long service life and simple structure.
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