Patent ID: 6890686

Claim:
A battery, comprising: a first electrode comprising a first electrode active material represented by the general formula Li a M′ 2−b M″ b P 3−y Si y O 12−c Z c , wherein: (a) a≧0; (b) 0≦b≦2, and M′and M″ are the same or different from one another and are each selected from the group consisting of metal and metalloid elements, wherein at least one of M′and M″is multivalent; (c) 0<y≦3; and (d) 0<c<12, and Z is a halogen; wherein M′, M″, Z, a, b, y, and c are selected to balance the first electrode active material total charge; the battery further comprising a second electrode which is a counter-electrode to the first electrode; and an electrolyte.