Power battery
By setting an annular step support part on the other end of the power battery case and setting a recess and a liquid injection hole on the bottom welding sheet, the existing power battery has been solved, and the battery has been lightweight, low cost and high-speed charging and discharge performance is achieved.
CN222673242UActive Publication Date: 2025-03-25DONGGUAN CHAM BATTERY TECH CO LTD
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Patent Information
- Application Number
- CN202420965027.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-06
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-05-06
AI Technical Summary
Technical Problem
The existing power battery structure and process are relatively cumbersome, costly, and heavier, making it difficult to meet the battery life and cost requirements of new energy vehicles.
Method used
A power battery is designed, by providing an annular step support portion at the other end of the case, and a recess for welding with the bare core and a liquid injection hole for electrolyte injection on the bottom welding sheet, a conventional current collecting disk structure is eliminated, and the battery structure and process are simplified.
Benefits of technology
It achieves the reduction of battery structure cost and weight, while taking into account the high-speed charging and discharging performance of power batteries, and simplifies the battery production process.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model discloses a power battery which comprises a hollow shell and a bottom soldering lug, one end of the shell is open, the other end of the shell is provided with a step supporting part formed by bending towards the inside of the shell, the step supporting part is annular, the bottom soldering lug comprises a main body part, and a liquid injection hole is formed in the middle of the main body part. The main body part is further provided with at least two concave parts, the concave parts are arranged around the liquid injection hole, the bottom soldering lug is arranged on the step supporting part and seals the other end of the shell, and the concave parts are concave towards the inner side of the shell. According to the utility model, a conventional collector plate structure is omitted, the step supporting part is arranged at the other end of the shell, and the sunken part for welding with the naked battery cell and the liquid injection hole for injecting electrolyte are formed in the bottom soldering lug, so that the shell bottom at the bottom of the conventional shell and the collector plate are combined into a whole, the structural cost is reduced, and the structure is more compact. The weight of the battery module is reduced, the high-rate charge-discharge performance of the power battery is considered, and the battery production process is simplified.
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