ELECTRODE PLATE, ELECTROCHEMICAL APPARATUS, AND APPARATUS THEREOF

This application relates to an electrode plate an electrochemical apparatus, and an apparatus thereof. The electrode plate in this application includes a current collector an electrode active material layer provided on at least one surface of the current collector and an electrical connection member electrically connected to the current collector The electrode active material layer is provided at a zone referred to as a membrane zone on a main body portion of the current collector the electrical connection member and the current collector are welded and connected at a welding zone referred to as an adapting welding zone at an edge of the current collector and a transition zone is referred to as an extension zone where the transition zone is of the current collector between the membrane zone and the adapting welding zone and coated with no electrode active material layer The current collector is a composite current collector. The electrode plate further includes a thermally conductive coating layer and the thermally conductive coating layer covers at least a part of the electrical connection member in the adapting welding zone.