POSITIVE ELECTRODE MATERIAL, NEGATIVE ELECTRODE MATERIAL, POSITIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, LITHIUM ION SECONDARY BATTERY, ELECTROLYTE FOR LITHIUM ION SECONDARY BATTERY, AND ELECTRODE SLURRY FOR LITHIUM ION SECONDARY BATTERY

摘要

PROBLEM TO BE SOLVED: To provide an electrode material capable of reducing capacity drop accompanying charge/discharge cycles more than before even when working voltage of a lithium ion secondary battery is set equal to or more than 4.5 V, and also to provide an electrode for a lithium ion secondary battery, the lithium ion secondary battery, an electrolyte for the lithium ion secondary battery, and electrode slurry for the lithium ion secondary battery.SOLUTION: A positive electrode material is characterized in containing a positive electrode active material, and a covering material covering the positive electrode active material and consisting of at least one kind selected from the group consisting of a polymer having at least one of constitutional units represented by general formula (1) and general formula (2).SELECTED DRAWING: None