Positive electrode active material, secondary battery, and manufacturing method of the positive electrode active material
By employing lithium metal composite oxide particles with a controlled plate-like shape and composition, the battery resistance is reduced through increased reaction area, improving secondary battery performance.
JP2025181073APending Publication Date: 2025-12-11TOYOTA JIDOSHA KK
Patent Information
- Application Number
- JP2024088832
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-12-11
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Figure 2025181073000001_ABST
Abstract
To reduce a battery resistance.SOLUTION: A positive electrode active material includes a lithium metal composite oxide. The lithium metal composite oxide forms plate-like particles. The plate-like particles satisfy the relationship of "3≤dx / dz" and "2≤dy / dz". "dx" indicates a major axis diameter of the plate-like particle. The "dy" indicates the minor axis diameter of the plate-like particle. The "dz" indicates the thickness of the plate-like particles.SELECTED DRAWING: Figure 1
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Citation Information
Patent Citations
Lithium secondary battery and method for manufacturing the same
JP2017228438A