Metal (II) phosphate powders, lithium metal phosphate powders for Li-ion battery, and methods for manufacturing the same
AssigneeNational Tsing Hua University
InventorsLih-Hsin Chou, Shao-Wei Peng, Kai-Chu Chang
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Abstract
Metal (II) phosphate powders, lithium metal phosphate powders for a Li-ion battery and methods for manufacturing the same are provided. The metal (II) phosphate powders are represented by the following formula (I): (Fe1-xMx)3(PO4)2.yH2O (I) wherein M comprises at least one metal selected from the group consisting of Mn, Co, Ni, Cu, Cr, V, Mo, Ti, Zn, Zr, Tc, Ru, Rh, Pd, Ag, Cd, Pt, Au, Al, Ga, In, Be, Mg, Ca, Sr, B and Nb, 0.5<x≤1, y is an integer of 0 to 8, the metal phosphate (II) powders are composed of plural flake powders, and the length of each of the flake powders is ranged from 50 nm to 10 μm.
Claims15
Metal (II) phosphate powders for manufacturing an electrode material of a Li-ion battery, represented by the following formula (I):
- (Fe1-xMx)3(PO4)2.yH2O (I)
- wherein M comprises at least one metal selected from the group consisting of Mn, Co, Ni, Cu, Cr, V, Mo, Ti, Zn, Zr, Tc, Ru, Rh, Pd, Ag, Cd, Pt, Au, Al, Ga, In, Be, Mg, Ca, Sr, B and Nb, 0.5<x≤1, y is an integer of 0 to 8, the metal phosphate (II) powders are composed of plural flake powders, and the length of each of the flake powders is ranged from 50 nm to 10 μm.
A method for manufacturing metal (II) phosphate powders, comprising the following steps:
- (a) providing a P-containing precursor solution, wherein the P-containing precursor solution comprises:
- a P-containing precursor, and a weakly alkaline compound;
- and
- (b) adding at least one metal (II) compound into the P-containing precursor solution to obtain metal (II) phosphate powders represented by the following formula (I):
- (Fe1-xMx)3(PO4)2.yH2O (I)
- wherein M comprises at least one metal selected from the group consisting of Mn, Co, Ni, Cu, Cr, V, Mo, Ti, Zn, Zr, Tc, Ru, Rh, Pd, Ag, Cd, Pt, Au, Al, Ga, In, Be, Mg, Ca, Sr, B and Nb, 0.5<x≤1, y is an integer of 0 to 8, the metal phosphate (II) powders are composed of plural flake powders, and the length of each of the flake powders is ranged from 50 nm to 10 μm.
Dependencies are inferred from the claim text.