Positive Electrode Active Material And Lithium Secondary Battery Comprising The Same
Patent No. EP3808707 (titled "Positive Electrode Active Material And Lithium Secondary Battery Comprising The Same") was filed by Ecopro BM on Oct 6, 2020. The application was issued on Feb 19, 2025.
Patent Summary
Positive electrode active material for lithium secondary batteries that enables high-capacity operation while maintaining low resistance characteristics. The material comprises primary particles that enable lithium intercalation and deintercalation, and secondary particles formed by aggregating these primary particles. The secondary particles exhibit a unique concentration gradient structure, with alternating sections of increasing and decreasing concentrations of nickel, cobalt, and manganese. This gradient structure facilitates the formation of charge transport channels within the material, enabling efficient lithium ion transport and maintaining low resistance characteristics even at high nickel content levels.
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Date
Description
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EP3808707
- Application Number
- EP20200217A
- Filing Date
- Oct 6, 2020
- Status
- Granted And Under Opposition
- Jan 17, 2025
- Publication Date
- Feb 19, 2025
- External Links
- Slate, Register , Google Patents