Chinese Academy of Sciences

Guangdong Keprime Enerstore Ltd

Yuanhao Tang

Jun Li

Deyu Wang

Chenyun Wang

Zhenlian Chen

Xianhui Zhang

Jinhua He

Described herein are solid solution composites that are used as cathode materials for lithium-ion batteries. The solid solution composite of &#x3b1; LiMVO-&#x3b2;LiNiCoMnO, in which LiMVOhas cubic close-packed structure, LiNiCoMnOhas hexagonal layered structure, and both share an oxygen lattice fully or partly. The new solid solution materials have advantage for lithium-ion batteries that the working voltage of the composite is adjustable by controlling the molar ratio of &#x3b1; and &#x3b2; and have higher working voltage than current secondary battery materials. Also described herein are methods of preparing such composite.

Solid solution composite LIMVO4-LINI-X-YCOXMNYO2 material for rechargeable lithium ion batteries

The present invention relates to a novel phosphate based composite anode material, preparation method and uses thereof. Specifically disclosed is a phosphate based composite cell anode material, the material having monoclinic and orthorhombic crystal lattice structures with the chemical formula of AVM(PO), wherein A is Li, Naor the mixture thereof, M is Mg, Al, Sc, Ti, Cr, Mn, Fe, Co, Ni, Cu, Zn or Nb, 0&#x2266;x&#x2266;3.0, 0&#x2266;y&#x2266;2.0, and C is the carbon layer. Also disclosed are a preparation method and uses of the composite material. Unlike simple physical mixing, the composite material of the present invention has the advantages of an adjustable electric potential plateau, high reversible capacity, good cycle stability, power consumption early warning and the like.

Phosphate based composite anode material, preparation method and use thereof

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Ningbo, China

Yuanhao Tang