| abstract |
The invention relates to an electrode pole piece, an electrochemical device and a safety coating. The electrode sheet includes a current collector, an electrode active material layer, and a safety coating disposed between the current collector and the electrode active material layer, the safety coating comprising a polyvinylidene fluoride and/or a polyvinylidene chloroolefin polymer matrix, Conductive materials and inorganic fillers. The electrode pole piece can quickly disconnect the circuit when the electrochemical device (such as a capacitor, a primary battery or a secondary battery, etc.) is in a high temperature condition or an internal short circuit occurs, thereby improving the high temperature safety of the electrochemical device. |