Short-circuit device for electrochemical device and short-circuit device-equipped electrochemical device

Abstract

A short-circuit device for an electrochemical device includes: a first electrical conductor; a second electrical conductor; a porous conductive layer positioned between the first electrical conductor and the second electrical conductor; and an insulating layer positioned either or both of between the porous conductive layer and the first electrical conductor and between the porous conductive layer and the second electrical conductor. The insulating layer contains a thermoplastic resin and has an area density of more than 0.15 mg/cm2, and when this area density is taken to be Ma and the area density of the porous conductive layer is taken to be Mb, a relationship formula: 0.15≤Ma/Mb≤2.40 is satisfied.

Dependencies are inferred from the claim text.