Patent ID: 8088513

Claim:
An anode for use in a battery comprising an anode current collector and an anode active material layer provided on the anode current collector, wherein the anode active material layer includes an anode active material and a polymer containing vinylidene fluoride as a component, wherein the anode active material is a carbon material, wherein a calorific value at temperatures from about 230° C. to about 370° C. by differential scanning calorimetry when the anode active material layer is in a state of being charged is 500 J/g or less, wherein a calorific difference between the calorific value at a maximum value and at about 100° C. when the anode active material is in a state of being charged to 4.2 V ranges from 1.3 W/g to 1.7 W/g, wherein the calorific value is measured for a reaction between lithium inserted in the anode and fluorine, and wherein the calorific difference is determined before the anode active material has been discharged.