Patent ID: 7270915

Claim:
A battery, comprising: a first electrode comprising an electrode active material represented by the general formula: A a M b PO 4 Z d , wherein, (a) A is selected from the group consisting of Li, Na, K, and mixtures thereof, and 0.1<a≦4; (b) M is M′ 1−m M″ m , wherein M′ is at least one element selected from the group consisting of elements from Groups 4 though 11 of the Periodic Table, M″ is at least one element selected from the group consisting of elements from Groups 2, 12, 13, and 14 of the Periodic Table, 0<m<1, and 1≦b ≦3; and (c) Z comprises a halogen, and 0.1<d≦4; wherein M, Z, a, b, and d are selected so as to maintain electroneutrality of the electrode active material; the battery further comprising a second electrode which is a counter-electrode to the first electrode; and an electrolyte.