| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a cathode active material for a lithium secondary battery and a lithium secondary battery using this. <P>SOLUTION: The material is used for the lithium secondary battery including a cathode, an anode, and an electrolyte, wherein an amount of the material to which carbonate ions (CO<SB>3</SB><SP>2-</SP>) and bicarbonate ions (HCO<SB>3</SB><SP>-</SP>) added is ≤0.5 mass% and an amount of hydroxide ions (OH<SP>-</SP>) is ≤0.1 mass%. Therefore, the battery manufactured by using the material can dominantly improve a phenomenon expanding an outer shape of the battery which is left at a high temperature of ≥60°C. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
