ACTIVE MATERIAL OF THE POSITIVE ELECTRODE, BATTERY AND METHOD FOR PRODUCING THE ACTIVE MATERIAL OF THE POSITIVE ELECTRODE
DE102024130893A1Pending Publication Date: 2025-04-30TOYOTA JIDOSHA KK
Patent Information
- Application Number
- DE102024130893
- Authority / Receiving Office
- DE · DE
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-04-30
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Abstract
Active material of the positive electrode with a composition characterized by Li x Ni a Co b Mn c M d O2 is represented, wherein, if an inner region extending 70% of the diameter from the center of a particle of the active material of the positive electrode is subdivided into square regions of 10 nm in a TEM-EDX image of a cross-section of the particle, the proportion of regions in which the concentration of an element represented by M is greater than or equal to 10% by mass is greater than or equal to 1.0% with respect to all regions, and in the composition 0.1≤x≤1.5, 0.5≤a≤1.0, 0≤b≤0.3, 0≤c≤0.3, a+b+c=1.0, 0.0005≤d≤0.05, and M represents at least one element selected from the group consisting of Ta, Al, Ba, Pr, La, Y, Sr, Ce, Se, Hf, Rh and Zr.
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Citation Information
Patent Citations
JAPANISCHEPATENTNR.6359323
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