Electrode assembly, battery cell, battery and electrical device
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
- Filing Date
- 2022-06-29
- Publication Date
- 2026-05-27
AI Technical Summary
Existing battery technologies face issues with insulation failure and lithium precipitation, leading to safety hazards and reduced cycle life due to electrode assembly swelling and contraction, which causes gaps and exposure, allowing granular impurities to enter and cause short circuits and lithium precipitation.
The electrode assembly design features a first electrode plate exceeding the second electrode plate by at least half a turn, with an insulation layer on the outer surface to prevent contact with the battery housing and ensure complete coverage, thereby preventing short circuits and lithium precipitation.
This design enhances safety and cycle life by preventing insulation failure and lithium precipitation, ensuring reliable operation and improved performance of the battery.