A method for depositing lithium on a substrate to form an electrode is provided. The method includes applying a printable lithium composition comprised of lithium metal powder, a polymer binder compatible with the lithium metal powder, a rheology modifier compatible with the lithium metal powder and a solvent compatible with the lithium metal powder and with the polymer binder, to a substrate.

The invention pertains to an aqueous electrode-forming composition comprising:at least one fluoropolymer [polymer (F)];particles of at least one powdery active electrode material [particles (P)], said particles (P) comprising a core of an active electrode compound [compound (E)] and an outer layer of a metallic compound [compound (M)] different from Lithium, said outer layer at least partially surrounding said core; andwater, to a process for its manufacture, to a process for manufacturing an electrode structure using the same, to an electrode structure made from the same and to an electrochemical device comprising said electrode structure.

A process for preparing a structure acting both as a positive electrode for a lithium-sulfur battery and as a current collector, comprising the following operations: depositing one or more liquid compositions comprising the constituent ingredients of this structure on a removable substrate; drying the one or more deposited compositions; separating the removable substrate from the structure thus obtained, which forms the structure acting both as a positive electrode for a lithium-sulfur battery and as a current collector.

A screen-printable electrode battery ink is described comprising a slurry of an active ingredient, conductive additive, a binder, and a solvent, the slurry having a solids content from about 40% by weight to about 70% by weight that is uniformly distributed in the solvent, wherein the ink has a thixotropic recovery rate from about 30 seconds to about 90 seconds, and wherein the binder has untwisted molecular chains. Methods for making the screen-printable electrode battery ink are also described. The screen-printable electrode battery inks can be used to screen print electrodes, for use in fast-charging battery. Fast-charging batteries can be incorporated into electronic devices, such as electric vehicles.

A method including a deposition step comprising depositing a layer of graphene oxide; a deposition step including selectively exposing a region of the deposited graphene oxide layer to electromagnetic radiation to form a region of reduced graphene oxide adjacent to a neighboring region of unexposed graphene oxide, the graphene oxide and adjacent reduced graphene oxide regions forming a junction therebetween to produce a graphene oxide-reduced graphene oxide junction layer; and repeating the deposition and exposure steps for one or more further respective layers of graphene oxide, over an underlying graphene oxide-reduced graphene oxide junction layer, to produce an apparatus in which the respective junctions of the graphene oxide-reduced graphene oxide layers, when considered together, extend in the third dimension.

A method of manufacturing a battery is provided. The steps are as follows: forming an anode material and a cathode material on a first side and a second side of an isolation film, respectively, wherein the first side is opposite to the second side; forming a first protection layer on the first side of the isolation film; forming a first metal layer on the second side of the isolation film; forming a second protection layer on the first metal layer; removing the first protection layer; forming a second metal layer on the first side of the isolation film; and removing the second protection layer.

A system for spraying particles onto a substrate, including: at least one reactor including at least one inlet for liquid reagents, a reaction zone, and a zone for collection of the particles produced from the liquid reagents in the reaction zone; a dispensing device allowing the particles to be sprayed onto the substrate; and a mechanism guiding the particles from the collection zone towards the dispensing device.

A method for forming a pattern, a structural body, a method for producing a comb-shaped electrode, and a secondary cell. The pattern forming method, in which n patterns (n2) are formed on a support, includes forming a first resist layer on the support surface; and repeating: forming a guide hole through a kth resist layer by exposure and development, filling a kth pattern material into the guide hole by a screen printing process, removing the kth resist layer, and forming a (k+1)th resist layer on the support and all pattern materials, regarding kth (k=1 to n1) pattern material and resist layer in order of k=1 to n1; forming a guide hole and nth pattern material filling similarly, and removing the nth resist layer.

A method of producing a current collector for a thin battery includes a printing or spray deposition technique on a substrate formed of a battery packaging material. The layer obtained by printing or spray deposition includes particles of an electrically conductive material. The printing or spraying is followed by curing using a light source, to thereby obtain the current collector. The printed or sprayed layer is produced having the required form of the current collector, so that no stamping or other forming operations are required. Current collectors according to the method have comparable or improved mechanical and electrical properties to the traditional foil or mesh-based current collectors.

A metal oxide composite including a first metal oxide composite layer, and a second metal oxide layer, wherein the first metal oxide composite layer and the second metal oxide layer are alternately stacked in a thickness direction; and a third metal oxide layer that is disposed on a side surface of the stacked structure, wherein the third metal oxide layer includes a metal oxide that is a same metal oxide as a metal oxide included in the stacked structure.