INSPECTION METHOD FOR ALL-SOLID SECONDARY BATTERY AND MANUFACTURING METHOD OF ALL-SOLID SECONDARY BATTERY UTILIZING THE INSPECTION METHOD

摘要

The method for inspecting a constituent unit cell of an all-solid secondary battery of the present invention includes (A) measuring an open-circuit voltage between the positive electrode and the negative electrode of a constituent unit cell of an all-solid secondary battery, (B) externally short-circuiting the positive electrode and the negative electrode of the constituent unit cell, (C) measuring an open-circuit voltage between the positive electrode and the negative electrode of the constituent unit cell after a given time has elapsed since the end of step (B), and (D) judging the constituent unit cell to be unusable when the open-circuit voltage measured in step (C) is less than the threshold value. The method for manufacturing an all-solid secondary battery of the present invention includes stacking a plurality of the constituent unit cells excluding the constituent unit cell judged to be unusable by the inspection method according to 1 above.

主权项

1. A method for inspecting a constituent unit cell of an all-solid secondary battery, comprising:
(A) measuring an open-circuit voltage between the positive electrode and the negative electrode of said constituent unit cell of said all-solid secondary battery, (B) externally short-circuiting the positive electrode and the negative electrode of said constituent unit cell, (C) measuring an open-circuit voltage between the positive electrode and the negative electrode of said constituent unit cell after a given time has elapsed since the end of step (B), and (D) judging said constituent unit cell to be unusable when said open-circuit voltage measured in step (C) is less than the threshold value.