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US 2024/0190715 A1Published application
Positive lithium supplement material and preparation method thereof, positive electrode plate, secondary battery and electrical device
AssigneeContemporary Amperex Technology Co., Limited
InventorsXin LIU, Qisen HUANG, Cheng LI, Mingling LI, Xianghui LIU
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Abstract
A positive lithium supplement material includes a core, an inorganic coating layer coated on at least part of a surface of the core, and an organic coating layer coated on at least part of a surface of the inorganic coating layer away from the core. The core includes LixMyOz, and the M element includes at least one of Al, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, or Zn, where 2≤x≤6, 1≤y≤2, 2≤z≤4, and the core is electrically neutral.
Claims20
A positive lithium supplement material, comprising:
- a core comprising LixMyOz, the M element comprising at least one of Al, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, or Zn;
- an inorganic coating layer coated on at least part of a surface of the core;
- and
- an organic coating layer coated on at least part of a surface of the inorganic coating layer away from the core,
- wherein 2≤x≤6, 1≤y≤2, 2≤z≤4, and the core is electrically neutral.
2 more elements
A method of preparing a positive lithium supplement material, comprising:
- providing a core, the core comprising LixMyOz, the M element comprising at least one of Al, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, or Zn, wherein 2≤x≤6, 1≤y≤2, 2 z≤4;
- forming an inorganic coating layer on at least part of a surface of the core;
- and
- obtaining the positive lithium supplement material by forming an organic coating layer on at least part of a surface of the inorganic coating layer away from the core.
1 more element
Dependencies are inferred from the claim text.