CATHODE MATERIAL FOR LITHIUM-ION SECONDARY BATTERY, CATHODE FOR LITHIUM-ION SECONDARY BATTERY, LITHIUM-ION SECONDARY BATTERY, AND METHOD OF PRODUCING CATHODE MATERIAL FOR LITHIUM-ION SECONDARY BATTERY

摘要

PROBLEM TO BE SOLVED: To improve rate characteristics in high-rate discharge of -LiVOPO.SOLUTION: The cathode material for a lithium-ion secondary battery is characterized in that a ratio D90/D50 of a cumulative particle diameter D90 to a cumulative particle diameter D50 of -LiVOPOis 1.10 to 6.25 inclusive.