NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

摘要

PROBLEM TO BE SOLVED: To improve storage characteristics of a battery by reducing dissolution of an electrolyte and an effect of cobalt and manganese eluted from a positive electrode with an increase in capacity of a nonaqueous electrolyte secondary battery.

SOLUTION: A nonaqueous electrolyte secondary battery includes: a positive electrode including a positive electrode mixture layer which contains a positive electrode active material and is formed on a surface of a positive electrode collector; a negative electrode including a negative electrode mixture layer which contains a negative electrode active material and is formed on a surface of a negative electrode collector; a separator provided between the positive electrode and the negative electrode; and a nonaqueous electrolyte containing a solvent and a solute. An inorganic particle layer containing an inorganic particle and lithium fluoride is formed at least one of between the positive electrode and the separator and between the negative electrode and the separator.

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