The present disclosure relates to a composite positive electrode current collector. On a surface of an insulation layer, a protective layer, a graphene metallization layer and a conductive layer may be arranged in sequence; and the protective layer may comprise a metal oxide, and the graphene metallization layer may contain highly reduced graphene oxide having an oxygen-containing organic group.

A negative electrode for a lithium metal battery, a method of manufacturing the same, and a lithium metal battery including the same are provided. Specifically, one embodiment of the present invention provides a negative electrode for a lithium metal battery, the negative electrode including: a negative electrode current collector; a primer layer including an epoxy resin and a Ag conductive filler, the primer layer disposed on one surface or both surfaces of the negative electrode current collector; and a lithium metal (Li-metal) thin film disposed on the primer layer.

Methods of forming a composite material film can include providing a layer comprising a carbon precursor and silicon particles on a sacrificial substrate. The methods can also include pyrolysing the carbon precursor to convert the precursor into one or more types of carbon phases to form the composite material film, whereby the sacrificial substrate has a char yield of about 10% or less.

Energy storage devices, battery cells, and batteries of the present technology may include a first cell and a second cell disposed adjacent the first cell. The devices may include a stacked current collector coupled between the first cell and the second cell. The current collector may include a grid or matrix, and may include a combination of conductive and insulative materials.

An electrochemical device includes an electrolytic solution, an electrode assembly, and a housing accommodating the electrolytic solution and the electrode assembly. The electrode assembly includes a first electrode plate, a second electrode plate, and a separator disposed there between, which are stacked and wound. In a direction of a winding central axis, the electrochemical device includes a first end and a second end that are opposite to each other. The first electrode plate includes a first current collector and a first active material layer disposed on the first current collector. The first current collector includes a first part. In the direction of the winding central axis, the first part is located at an end of the first current collector and is closer to the first end than the second end. A porous layer is disposed on the first part.

A positive electrode current collector for a lithium secondary battery includes a tab extending from a positive electrode current collector substrate. An anti-corrosion layer made of one selected from the group consisting of a primer layer, a conductive polymer layer, and a conductive epoxy layer is formed over the entire surface of the tab. A positive electrode of a lithium secondary battery includes the positive current collector.

Polymer blends that may be used as electrolytes. Devices that include polymer blends. Methods of forming polymer blends. The polymer blends may include a polysolvent and a polymer, such as a polymer that includes a negatively charged sidechain. The devices may include a lithium ion battery.

Particular embodiments described herein provide for an electrode for a battery. The electrode including a current collector frame and an electrode substrate coupled to the current collector frame. An electrically conductive adhesive layer can be between the current collector frame and the electrode substrate and the electrically conductive adhesive layer can include a polymer binder and a conductive filler. The electrode substrate includes a porous material and active electrode material within the porous material. The porous material is copper foam, nickel foam, stainless steel foam, titanium foam, carbon felt, carbon cloth, or a carbon paper conductive polymer. The active electrode material includes one or more of manganese oxide, nickel oxide, vanadium oxide, titanium oxide, iron oxide, zinc metal, lead oxide, or lead.

Disclosed are maleic anhydride-grafted cyclic olefin copolymers, methods for preparing maleic anhydride-grafted cyclic olefin copolymers, low temperature methods for laminating anodes comprising the maleic anhydride-grafted cyclic olefin copolymers, and anodes and alkali ion batteries that comprise the maleic anhydride-grafted cyclic olefin copolymers.

Disclosed are an electrode having a three-dimensional structure, the electrode including: a porous nonwoven web including a plurality of polymer fibers that form an interconnected porous network; an active material composite positioned among the polymer fibers and including active material particles and a first conductive material; and a second conductive material positioned on an outer surface of the active material composite, wherein the interconnected porous network is filled homogeneously with the active material composite and the second conductive material to form a super lattice structure, and an electrochemical device including the electrode having a three-dimensional structure.