| 摘要 |
PURPOSE: To improve a cycle characteristic by restraining reaction between a lithium-transition metal composite oxide and electrolyte on a positive electrode surface of a lithium secondary battery, and restraining decomposition of the electrolyte. CONSTITUTION: Metal selected from a group composed of lead, molybdenum, bismuth, cadmium, thallium, tin, copper, indium, germanium, tungsten, antimony, titanium, rhenium, ruthenium, osmium, rhodium, iridium, palladium, platinum, silver, gold and mercury, is stuck on a surface of a lithium transition metal composite oxide being a positive electrode material. This sticking is performed by a CVD, an evaporation method, a sputtering method or the like. |
