一种软包电池电芯封装结构及封装方法
By pre-composite tab films on both sides of the aluminum-plastic film and then fused them together, the protruding part of the tab film is eliminated, solving the problems of space occupation and high cost in the prior art, and realizing high energy density and reliability of soft-pack battery packaging.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- 深圳耀石锂电科技有限公司
- Filing Date
- 2025-10-21
- Publication Date
- 2026-07-17
AI Technical Summary
In the prior art, the extension of the tab adhesive beyond the packaging boundary leads to space occupation of the pouch battery module, reduced volumetric energy density, increased material costs and process complexity, and affects the overall packaging consistency and reliability.
The tab film is pre-composite on both sides of the aluminum-plastic film. By folding and fusion, the protruding part of the tab film is eliminated. The elastic modulus and thickness of the tab film are designed to ensure the sealing effect. A complete tab film sealing ring is formed by hot pressing. The peel strength is improved by combining the micro-concave-convex interlocking structure formed by laser etching or molding.
It improves volumetric energy density, reduces material costs, enhances packaging consistency and reliability, is compatible with various tab layouts and aluminum-plastic film pit designs, and is suitable for packaging soft-pack battery cells of different sizes and capacities.
Smart Images
Figure CN121282475B_ABST
Abstract
Citation Information
Patent Citations
Multilayer negative electrode and preparation method and application thereof
CN120545308A
Soft package battery packaging structure and soft package battery
CN212323082U