An energy storage cell includes a housing comprising a metallic, tubular housing with a circular opening. The energy storage cell further includes an electrode-separator assembly winding having two terminal end faces and a wound jacket, the electrode-separator assembly comprising an anode, a cathode, and a separator. The energy storage cell additionally includes an at least partly metallic contact element in direct contact with and connected to current collector by welding. The contact element comprises a circular edge and closes the terminal circular opening of the tubular housing portion in a gas- and liquid-tight manner. The contact element is or comprises a metallic membrane electrically connected to a current collector. The metallic membrane is configured to, in response to a pressure in the housing exceeding a threshold, bend such that electrical contact between the contact element and the current collector is lost.

The present disclosure relates to a transition metal chalcogenide for preparing metal nanostructures, metal nanostructures obtained thereby, an electronic instrument including the same, and a method for manufacturing the same. More particularly, the present disclosure relates to a transition metal chalcogenide for preparing metal nanostructures using transition metal dichalcogenide nanosheets as a reducing agent, metal nanostructures obtained thereby, an electronic instrument including the same, and a method for manufacturing the same.

A method for manufacturing an anode for a cable-type secondary battery, includes forming a lithium-containing electrode layer on the outer surface of a wire-type current collector; and surrounding the outer surface of the lithium-containing electrode layer with a substrate for forming a polymer layer spirally, and pressing the outside of the substrate for forming a polymer layer to form a polymer layer on the lithium-containing electrode layer, wherein the polymer layer includes a hydrophobic polymer, an ion conductive polymer, and a binder for binding the hydrophobic polymer and the ion conductive polymer with each other. An anode obtained from the method and a cable-type secondary battery including the anode are also provided.

A method for manufacturing an anode for a cable-type secondary battery, includes forming a lithium-containing electrode layer on the outer surface of a wire-type current collector; and surrounding the outer surface of the lithium-containing electrode layer with a substrate for forming a polymer layer spirally, and pressing the outside of the substrate for forming a polymer layer to form a polymer layer on the lithium-containing electrode layer, wherein the polymer layer includes a hydrophobic polymer, an ion conductive polymer, and a binder for binding the hydrophobic polymer and the ion conductive polymer with each other. An anode obtained from the method and a cable-type secondary battery including the anode are also provided.

The present application provide a spliced lithium strip, preparation method thereof, and related negative electrode plate, battery core, lithium ion battery, battery module, battery pack and apparatus. The spliced lithium strip is formed by splicing two or more base lithium strips, wherein the base lithium strip has a thickness fluctuation of less than 5%; the spliced lithium strip has a spliced area and a non-spliced area alternately distributed along the splicing direction, and the spliced area has a maximum thickness H and the non-spliced area has a minimum thickness L, satisfying $\frac{.Math.H-L.Math.}{L}\times 100\%\le 6\%.$

The present application provide a spliced lithium strip, preparation method thereof, and related negative electrode plate, battery core, lithium ion battery, battery module, battery pack and apparatus. The spliced lithium strip is formed by splicing two or more base lithium strips, wherein the base lithium strip has a thickness fluctuation of less than 5%; the spliced lithium strip has a spliced area and a non-spliced area alternately distributed along the splicing direction, and the spliced area has a maximum thickness H and the non-spliced area has a minimum thickness L, satisfying $\frac{.Math.H-L.Math.}{L}\times 100\%\le 6\%.$

A method for forming at least one alkali metal or alkaline earth metal electrode, said method comprising: a) providing a metal foil; b) cutting the metal foil to form at least one electrode; c) placing an electrode on a carrier; d) applying one or more protection layers to one or both sides of the electrode; and e) removing the electrode from the carrier.

A method (100) for making a non-aqueous rechargeable metal-air battery is provided. The method includes before and/or after inserting (108) a cathode in the battery, a pre-conditioning step (104, 106, 110) of a 3D nanomesh structure, so as to obtain a pre-conditioned 3D nanomesh structure, the pre-conditioned 3D nanomesh structure being free of cathode active material. A cathode to be inserted into a non-aqueous rechargeable metal-air battery is also provided. The cathode includes a pre-conditioned 3D nanomesh structure made of nanowires made of electronic conductive metal material, the pre-conditioned 3D nanomesh structure being free of cathode active material. A non-aqueous rechargeable metal-air battery including such a cathode is also provided.

A power storage device includes a first electrode having a first current collector, a second electrode having a second current collector, and a separator, which form a columnar wound body. The power storage device includes a cylinder covering an outer periphery of the columnar wound body and having a first opening, a sealing body sealing the first opening, and at least one first tab, its one end connected to the first current collector and the other end connected to the sealing body. The sealing body has a first member including a first face facing away from the columnar wound body, and a second member including a second face facing the columnar wound body. The other end of the first tab is welded to the first face of the first member to form a first welding portion that is positioned between the first face and the second face.

A power storage device includes a first electrode having a first current collector, a second electrode having a second current collector, and a separator, which form a columnar wound body. The power storage device includes a cylinder covering an outer periphery of the columnar wound body and having a first opening, a sealing body sealing the first opening, and at least one first tab, its one end connected to the first current collector and the other end connected to the sealing body. The sealing body has a first member including a first face facing away from the columnar wound body, and a second member including a second face facing the columnar wound body. The other end of the first tab is welded to the first face of the first member to form a first welding portion that is positioned between the first face and the second face.