NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

Abstract

One embodiment of the present invention provides a nonaqueous electrolyte secondary battery (10) which comprises a positive electrode (11) that contains a lithium-containing transition metal composite oxide and a sulfonic acid compound that is present on the surfaces of particles of the composite oxide. The sulfonic acid compound is represented by formula (I). With respect to this nonaqueous electrolyte secondary battery, a negative electrode (12) comprises a negative electrode core body and a negative electrode mixture layer that is formed on the surface of the negative electrode core body; and the 1% proof stress of the negative electrode core body is 300 MPa or less. (In the formula, A represents a group 1 element or a group 2 element; R represents a hydrocarbon group; and n is 1 or 2.)

CPC Classifications