The present invention provides a composite electrode plate including a current collector. The current collector has a first surface and a second surface that are opposite to each other. A positive electrode active material layer is provided on the first su...

A battery cell testing system is provided. This system includes a platform and a force distributor disposed above the platform. The force distributor has a plate and a plurality of force distributor sheets disposed above the plate. The system also includes...

A method for preparing a solid-state electrolyte membrane structure. The method includes: S proportionally mixing raw materials of a solid-state electrolyte to obtain a mixed powder; S mixing the mixed powder, a binder and a solvent together to obtain a so...