| 摘要 |
Disclosed is an electrochemical element which comprises a positive electrode, a negative electrode, a non-aqueous electrolyte solution and a separator. The separator comprises a first porous layer mainly composed of a thermoplastic resin and a second porous layer mainly composed of an insulating particle having a heat resistance temperature of 150°C or higher. The first porous layer is arranged so as to face toward the negative electrode. |
