POSITIVE ELECTRODE AND SECONDARY BATTERY CONTAINING THE SAME
Patent Information
- Application Number
- DE602020045633
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2019-10-04
- Filing Date
- 2020-09-29
- Publication Date
- 2025-01-29
- Estimated Expiration
- 2040-09-29
AI Technical Summary
Existing lithium secondary batteries face issues with high resistance due to inadequate conductivity in the positive electrode, leading to accelerated damage of the positive electrode active material during the rolling process and reduced lithium ion diffusion rates.
A positive electrode design featuring a first active material layer and a second active material layer with interconnected carbon nanotube structures, where 2 to 5,000 single-walled carbon nanotube units are bonded side by side to form a network structure, enhancing conductivity and minimizing damage during rolling.
The proposed design significantly reduces the damage of positive electrode active materials during the rolling process, improves electrical conductivity, and enhances the input/output characteristics and life characteristics of the battery.