一种提高电池保液量的极片和锂离子电池
By opening arched through-holes in the electrode material area and filling them with solid electrolyte, the problem of poor wettability of the inner layer of lithium-ion batteries was solved, which improved the battery's liquid retention and extended its cycle life, and promoted the consistency and uniformity of film formation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- TIANMU LAKE INST OF ADVANCED ENERGY STORAGE TECH CO LTD
- Filing Date
- 2022-06-27
- Publication Date
- 2026-07-17
AI Technical Summary
In existing lithium-ion batteries, increasing the compaction density of the positive and negative electrodes during manufacturing leads to poor electrolyte wettability, resulting in a reduction in the amount of residual electrolyte inside the battery. This affects cycle life and film formation. Current technologies cannot effectively solve the problem of inner layer wetting of the electrolyte.
An arched through-hole is made on the side of the electrode where the current collector is attached, and a solid electrolyte is filled in the through-hole. The arch ratio and width are optimized by wetting the inner and outer layers together to improve the electrolyte retention and film consistency of the battery.
It improves the liquid retention and cycle life of lithium-ion batteries, enhances the battery's wetting efficiency and film uniformity, and improves the battery's hardness and portability.
Smart Images
Figure CN115020636B_ABST