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US 2014/0004417 A1Published application
Active material, method for manufacturing active material, electrode, and lithium ion secondary battery
AssigneeTDK Corporation
InventorsAtsushi Sano, Keitaro Otsuki, Tomohiko Kato, Akiji Higuchi
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Abstract
An active material capable of improving the discharge capacity of a lithium ion secondary battery is provided. The active material of the present invention includes LiVOPO4 and one or more metal elements selected from the group consisting of Al, Nb, Ag, Mg, Mn, Fe, Zr, Na, K, B, Cr, Co, Ni, Cu, Zn, Si, Be, Ti, and Mo.
Claims4
An active material comprising:
- LiVOPO4;
- and
- one or more metal elements selected from the group consisting of Al, Nb, Ag, Mg, Mn, Fe, Zr, Na, K, B, Cr, Co, Ni, Cu, Zn, Si, Be, Ti, and Mo.
A method for manufacturing an active material, comprising
- a hydrothermal synthesis step of heating a mixture under pressure, the mixture including:
- one or more metal elements selected from the group consisting of Al, Nb, Ag, Mg, Mn, Fe, Zr, Na, K, B, Cr, Co, Ni, Cu, Zn, Si, Be, Ti, and Mo;
- a lithium source;
- a phosphate source;
- a vanadium source;
- and water.
3 more elements
Dependencies are inferred from the claim text.