Patent ID: 11906592
Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H  Y | IPC G  H

Claim 0:
1. A method of producing an all-solid-state battery, comprising:
forming an insulating layer-attached stack unit including an insulating layer and a stack unit that includes a positive electrode layer, a solid electrolyte layer and a negative electrode layer;
performing a dielectric breakdown test on the insulating layer included in the insulating layer-attached stack unit, and determining that the insulating layer-attached stack unit is a non-defective product if no dielectric breakdown is present;
forming an electrode member having both ends by disposing two insulating layer-attached stack units at the both ends, the insulating layer-attached stack unit being determined to be a non-defective product;
accommodating the electrode member in a case; and
assembling a restraint member to the outside of the case to produce the all-solid-state battery,
in the dielectric breakdown test, the a presence or absence of dielectric breakdown being confirmed at a predetermined test temperature with a predetermined test pressure applied to the insulating layer, the predetermined test temperature is greater than or equal to a measured operation maximum temperature of the electrode member and the predetermined test pressure is greater than or equal to a measured maximum restraint pressure of the electrode member,
under the test temperature and the test pressure of the dielectric breakdown test, the insulating layer having a property that the a thickness thereof is gradually reduced to a constant value,
the insulating layer being disposed between the stack unit and the case, and
the case including a metal material.