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US 9,005,810 B2Granted
Cathode active material, cathode and non-aqueous secondary battery
AssigneeSharp Kabushiki Kaisha
InventorsKoji Ohira, Motoaki Nishijima
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Abstract
A cathode active material having a composition represented by the following formula (1) LiMn1−xMxP1−ySiyO4 (1) wherein M is at least one kind of element selected from the group consisting of Zr, Sn, Y and Al; x is within a range of 0<x≦0.5; and y is within a range of 0<y≦0.5.
Claims6
A cathode active material having a composition represented by formula (I) below,
- LiMn1−xMxP1−ySiyO4 (1)
- wherein M is at least one kind of element selected from a group consisting of Zr, Sn, and Al;
- x is within a range of 0<x≦0.5;
- and y is within a range of 0<y≦0.5 and
- wherein the cathode active material has a volume change ratio of not more than 8% as a result of intercalation and deintercalation of Li.
2 more elements
Dependencies are inferred from the claim text.