| 摘要 |
PROBLEM TO BE SOLVED: To produce a carbon material for achieving a lithium secondary battery high in initial efficiency and also large in discharge capacity. SOLUTION: The carbon material contains a carbonaceous material and at least one kind among metals capable of forming alloys with lithium or their compds. As one form of the carbon material, for example, the carbonaceous material contains at least one kind metal capable of forming the alloy with lithium. The other form of the carbon material is, for example, a mixture of the carbonaceous material with at least one kind metal capable of forming the alloy the lithium. Here, the metal capable of forming the alloy with lithium is, for example, at least one kind selected from the group consisting of calcium, strontium, barium, iridium, silver, cadmium, mercury, boron, aluminum, gallium, indium, thallium, silicon, tin, lead, antimony, bismuth and tellurium. |
