Nonaqueous electrolyte secondary cell

摘要

An object is to provide a nonaqueous electrolyte secondary cell that is capable of suppressing the degradation of the input-output performance immediately after the repeated charge and discharge and also achieving weight reduction. Provided is a nonaqueous electrolyte secondary cell including: a case; an element housed in the case, including at least a positive electrode member, a negative electrode member and a separator; and an electrolyte solution poured into the case, wherein when in the state of the case being installed, in the direction perpendicular to the liquid surface of the electrolyte solution, the length between the highest position and the lowest position of the element is represented by L1 and the length between the liquid surface and the lowest position of the element is represented by L2, the ratio calculated with the formula L2/L1 x 100 is 10% or more and 100% or less.