The present exemplary embodiments relates to a negative electrode for a lithium secondary battery, a manufacturing method thereof, and a lithium secondary battery comprising the same. An exemplary embodiment may provide a negative electrode for a lithium secondary battery comprising current collector and a negative active material layer positioned on at least one surface of the current collector, and comprising a lithium metal layer, wherein the negative active material layer comprising the lithium metal layer, comprises a coating layer positioned on the current collector and comprising a metal seed, and a lithium metal layer positioned on the coating layer.

Methods for forming anode structures are provided and include transferring a flexible substrate a first deposition chamber arranged downstream from a first spool chamber, the first deposition chamber containing a first coating drum capable of guiding the flexible substrate past a first plurality of deposition units, and guiding the flexible substrate past the first plurality of deposition units while depositing a lithium metal film on the flexible substrate via the first plurality of deposition units. The method also includes transferring the flexible substrate from the first deposition chamber to a second deposition chamber, the second deposition chamber containing a second coating drum capable of guiding the flexible substrate past a second deposition unit containing a crucible capable of depositing ceramic on the lithium metal film, and guiding the flexible substrate past the crucible while depositing a ceramic protective film on the lithium metal film via the evaporation crucible.

The disclosure provides a multi-layer prelithiated anode including (a) a conducting substrate having a first primary surface and a second primary surface; (b) a first layer of lithium metal deposited onto the first primary surface of the conducting substrate; (c) a first graphitic layer that substantially covers the first lithium metal layer; and (d) a first anode active layer deposited on a primary surface of the first graphitic layer. The first anode active layer includes an anode active material. Also provided are a lithium battery including such a prelithiated anode and a method of producing such an anode.

Anodic materials for lithium ions batteries include a current collector and a superlattice disposed on at least a portion of the current collector, the superlattice comprising: alternating layers of an anode active material and an anode inactive material; and a plurality of channels that extend from the current collector through the alternating layers of anode active material and anode inactive material.

Disclosed is a process for producing graphene-semiconductor nanowire hybrid material, comprising: (A) preparing a catalyst metal-coated mixture mass, which includes mixing graphene sheets with micron or sub-micron scaled semiconductor particles to form a mixture and depositing a nano-scaled catalytic metal onto surfaces of the graphene sheets and/or semiconductor particles; and (B) exposing the catalyst metal-coated mixture mass to a high temperature environment (preferably from 100° C. to 2,500° C.) for a period of time sufficient to enable a catalytic metal-catalyzed growth of multiple semiconductor nanowires using the semiconductor particles as a feed material to form the graphene-semiconductor nanowire hybrid material composition. An optional etching or separating procedure may be conducted to remove catalytic metal or graphene from the semiconductor nanowires.

A method is provided for fabricating a component material for a battery cell. The method comprises the steps of: providing a partially-fabricated battery cell, the partially-fabricated battery cell comprising a substrate having a planar deposition surface consisting of a first face of the substrate and a first battery component layer provided on the planar deposition surface, the substrate having a plurality of further surfaces, the planar deposition surface and the plurality of further surfaces defining the body of the substrate therebetween; wherein: the first battery component layer contains charge-carrying metal species and has an exposed surface; one or more electrically conductive or semi-conductive pathways extend through at least a portion of the substrate, each of the one or more pathways connecting the planar deposition surface to one of the plurality of further surfaces; and the partially-fabricated battery cell is held in position within a deposition chamber by a holding structure and each site of connection between one of the one or more pathways and the holding structure is electrically insulating; the method further comprising the step of depositing a second battery component layer on the first battery component layer, wherein the depositing comprises forming a plasma within the deposition chamber.

The present disclosure provides a positive electrode of lithium-ion battery, an all-solid-state lithium-ion battery and a preparation method thereof, and an electrical device. The all-solid-state lithium-ion battery of the present disclosure includes a positive electrode, a solid electrolyte, and a negative electrode; wherein the positive electrode includes a positive electrode current collector and a positive electrode material layer provided on a surface of the positive electrode current collector, a positive electrode active material in the positive electrode material layer is a manganese oxygen compound; and the negative electrode includes a negative electrode current collector and a negative electrode material layer provided on a surface of the negative electrode current collector, a negative electrode active material in the negative electrode material layer is a titanium oxygen compound.

A method is described herein for forming a high-capacity thin-film battery. The thin-film battery utilizes a cathode containing each of lithium, ruthenium, cobalt, and oxygen. The cathode composition is synthesized as a solution of LiRu.sub.2O.sub.3 and LiCoO.sub.2 and deposited on a substrate using a physical vapor deposition sputtering technique. The cathode is then covered by an electrolyte and an anode to form a thin film battery. The cathode within the resulting thin film battery may be as-deposited and without being annealed to have an amorphous composition, or the cathode may be annealed after depositing the cathode.

Integrated devices comprising integrated circuits and energy storage devices are described. Disclosed energy storage devices correspond to an all-solid-state construction, and do not include any gels, liquids, or other materials that are incompatible with microfabrication techniques. Disclosed energy storage device comprises energy storage cells with electrodes comprising metal-containing compositions, like metal oxides, metal nitrides, or metal hydrides, and a solid state electrolyte.

A method and apparatus for forming metal electrode structures, more specifically lithium-containing anodes, high performance electrochemical devices, such as primary and secondary electrochemical devices, including the aforementioned lithium-containing electrodes. In one implementation, the method comprises forming a lithium metal film on a current collector. The current collector comprises copper and/or stainless steel. The method further comprises forming a protective film stack on the lithium metal film, comprising forming a first protective film on the lithium metal film. The first protective film is selected from a bismuth chalcogenide film, a copper chalcogenide film, a tin chalcogenide film, a gallium chalcogenide film, a germanium chalcogenide film, an indium chalcogenide film, a silver chalcogenide film, a dielectric film, a lithium fluoride film, or a combination thereof.