Patent ID: 8168329

Claim:
A composition for use in an electrochemical redox reaction, comprising: a material represented by a general formula M y XO 4 , wherein M represents at least one element selected from the group consisting of transition metal elements, zinc, cadmium, beryllium, magnesium, calcium, strontium, boron, aluminum, silicon, gallium, germanium, indium, tin, antimony, and bismuth; X represents at least one element selected from the group consisting of phosphorus, arsenic, silicon and sulfur; O represents oxygen; and y represents a number from about 0.8 to about 1.2 inclusive; wherein the material is capable of being intercalated with ionic A to form A x M y XO 4 , wherein A represents at least one element selected from the group consisting of alkali metal elements, beryllium, magnesium, cadmium, boron, and aluminum; and x represents a number from about 0.8 to about 1.2 inclusive; and an oxide component comprising an oxide of at least one element selected from the group consisting of beryllium, magnesium, calcium, strontium, boron, aluminum, silicon, gallium, germanium, indium, tin, antimony, bismuth, and Groups 3-10 and 12; wherein the material and the oxide component are cocrystalline.