A battery cell housing and a battery cell

By designing the battery cell housing as two separate housings and connecting them using a splicing interface welding method, the problem of the battery cell housing not being able to adapt to irregular spaces was solved, achieving efficient use of space and an increase in battery cell capacity.

CN122576571APending Publication Date: 2026-08-14SVOLT ENERGY TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202611019091.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-07-09
Publication Date
2026-08-14

AI Technical Summary

Technical Problem

The existing cell casing shape cannot be adapted to irregular spaces, resulting in low space utilization and insufficient cell capacity and assembly ratio.

Method used

Design a battery cell housing comprising two housing parts, each housing part consisting of a first encapsulation part and two second encapsulation parts. The second encapsulation parts have an opening at their ends away from the first encapsulation parts along their length direction. The two housing parts are welded together by a splicing interface to form a specific shape to adapt to irregular installation spaces.

Benefits of technology

It improves space utilization, increases the assembly space of the cell electrode assembly, increases the energy density and assembly ratio of the cell, and reduces the risk of interference between the cell electrode assembly and the casing.

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Abstract

This invention belongs to the field of battery technology, specifically disclosing a battery cell housing and a battery cell. The battery cell housing includes two housing parts, each housing part including a first encapsulation part and two second encapsulation parts. The two second encapsulation parts are symmetrically arranged about the first encapsulation part, and are arranged at an angle to the first encapsulation part. The two opposing second encapsulation parts in the two housing parts are inclined in a direction away from each other. Each of the two housing parts has a splicing interface on its side closest to each other, and the two splicing interfaces are welded together. The two housing parts together form a battery cell housing with a specific shape structure. Therefore, irregular installation space in the car floor or other electrical devices can be rationally utilized, while avoiding other components in the car floor or other electrical devices, resulting in high space utilization. This invention also provides a battery cell, including the above-described battery cell housing.
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