| 摘要 |
PURPOSE: A separating structure for an electrochemical diode is provided to maintain the primary function of a safety device by the shielding function of a separating film and to suppress the short circuit between a positive electrode and a negative electrode due to the increase of a short circuit temperature even when high heat is generated. CONSTITUTION: A separating structure for an electrochemical diode comprises a separating film (10) which has a first melting point; a heat resistant protection layer (20) which is located at one side of the separating film and has a higher melting point than the first melting point; an adhesive layer (30) in a fiber web shape with pores, which attaches the separating film and the heat resistant protection layer. The separating film is formed of a polyolefin-based resin. At least one of the heat resistant protection layer and the adhesive layer is formed of electrospun fiber. The heat resistant protection layer has a reduced thickens due to a hot-pressing. |
