一种高温钠离子电池用排气上盖结构
By designing a metal film seal and a venting cover structure with a scraping device, the problems of untimely release of internal pressure and blockage of venting channels in high-temperature sodium-ion batteries were solved, enabling controllable release of internal pressure and cleaning of the channels, thus improving the safety and stability of the battery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHANGSHA CHENGSHI TECH CO LTD
- Filing Date
- 2026-04-24
- Publication Date
- 2026-07-17
AI Technical Summary
The opening threshold and action of the exhaust structure are not consistent, and it may open prematurely or open late, making it impossible to release the internal pressure of the battery in a timely and controllable manner; the viscous decomposition products generated at high temperature can easily block the exhaust port, narrowing or blocking the exhaust channel, resulting in the inability to release pressure in a timely manner.
A venting cover structure for high-temperature sodium-ion batteries was designed. It adopts a gas opening and closing unit composed of a metal thin film seal and a torsion spring, combined with a sweeping support unit and a servo motor driven venting port to achieve controllable gas emission, and prevents blockage through multiple vent holes and a sweeping device.
It achieves controllable and precise release of battery internal pressure, reduces the risk of venting channel blockage, improves the stability and safety of the venting structure, and avoids the risk of battery explosion.
Smart Images
Figure CN122136564B_ABST