C2/M-Structured Cathode Material for Lithium-Ion Battery
AssigneesLICO Technology Corp., Academia Sinica
InventorsMaw-Kuen WU, Tzu-Wen HUANG, Horng-Yi TANG, Hua-Shu CHANG, Chui-Chang CHIU, Kuo-Wei YEH, Chung-Chieh CHANG
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Abstract
Disclosed is a C2/m-structured cathode material for a lithium-ion battery. The cathode material includes a lithium transition metal oxide represented by a formula of: Li(LiwNixCoyMnz)O2, wherein w+x+y+z=1, 0.42≦z≦0.60, 0.30≦x+y≦0.55, any of w, x, and y is larger than 0, and the cathode material having a single-phase structure with a space group of C2/m. A lithium-ion battery containing the C2/m-structured cathode material is also disclosed.
Claims12
A C2/m-structured cathode material for a lithium-ion battery, said cathode material comprising a lithium transition metal oxide represented by a formula of:
- Li(LiwNixCoyMnz)O2,
- wherein
- w+x+y+z=1,
- 0.42≦z≦0.60,
- 0.30≦x+y≦0.55,
- any of w, x, and y is larger than 0, and
- said cathode material having a single-phase structure with a space group of C2/m.
A lithium-ion battery comprising:
- an anode;
- a cathode;
- an electrolyte;
- and
- a separator separating said anode from said cathode;
- said cathode containing a C2/m-structured cathode material including a lithium transition metal oxide represented by a formula of:
- Li(LiwNixCoyMnz)O2,
- wherein
- w+x+y+z=1,
- 0.42≦z≦0.60,
- 0.30≦x+y≦0.55,
- any of w, x, and y is larger than 0, and
- said cathode material having a single-phase structure with a space group of C2/m.
Dependencies are inferred from the claim text.