Tab-free battery
By using a tabless design with an insulating separator, inner ring, spring, and conductive mesh, the problem of unstable internal resistance in the battery is solved, achieving stability of internal resistance and extending service life, while also improving battery safety and reliability.
Patent Information
- Application Number
- CN202610513361.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-04-17
- Publication Date
- 2026-07-17
AI Technical Summary
The existing battery design has gaps in the contact between the positive and negative current collectors and the battery casing, which leads to unstable internal resistance. During use, vibration and temperature changes are aggravated, resulting in large energy loss and shortened battery life.
The design employs a stepless tab structure, which increases the contact area and stability through the combination of insulating partition, inner ring, first spring and conductive mesh. The elasticity of the spring keeps the conductive mesh in contact with the current collector. The sealing cylinder and sealing ring improve the connection and sealing performance between the shell and the end cover. A fuse is set to reduce the risk of short circuit.
It improves the stability of battery internal resistance, reduces changes in battery internal resistance caused by vibration and temperature variations, extends battery life, and enhances battery safety and reliability.
Smart Images
Figure CN122418271A_ABST