| abstract |
The application provides a battery separator, the separator includes a porous base film and a lithium-replenishing coating attached to one side of the porous base film, the lithium-replenishing coating includes a lithium-replenishing material and a first binder, and the The lithium-replenishing material includes a core and a coating layer on the surface of the core, the material of the core includes a lithium ion compound, and the material of the coating layer includes carbon and metal carbide; the application also provides a power battery and a vehicle, The power battery includes a positive electrode, a negative electrode and a separator, and the lithium-replenishing coating of the battery separator is opposite to the positive electrode; the vehicle includes the power battery; the present application forms a lithium-replenishing coating on one side of the battery separator, and The lithium-replenishing coating of the separator is opposite to the positive electrode sheet to prepare a battery, and the battery capacity is greatly improved; meanwhile, the separator also has good mechanical properties and high temperature resistance. |