NEGATIVE ELECTRODE AND SECONDARY BATTERY
DE602023021262T2Active Publication Date: 2026-08-12LG ENERGY SOLUTION LTD
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Patent Information
- Application Number
- DE602023021262
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2022-10-13
- Filing Date
- 2023-10-10
- Publication Date
- 2026-08-12
- Estimated Expiration
- 2043-10-10
AI Technical Summary
Technical Problem
Existing secondary batteries face challenges in achieving rapid charge characteristics due to improper material combinations in the negative electrode, which can adversely affect performance.
Method used
A two-layer structure for the negative electrode active material, where the second layer has a porosity 5% to 20% higher than the first layer, comprising silicon-based and graphite materials, enhances rapid charge performance by increasing electrolyte proximity.
Benefits of technology
The differential porosity structure improves rapid charge performance without compromising the battery's life and durability, demonstrating enhanced charge depth and capacity.
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