One variation of a battery unit includes: a series of anode collectors; a set of anode electrodes including anode material arranged on both side of the anode collectors; a set of anode interconnects interposed between and electrically coupling adjacent anode collectors and folded to locate the anode collectors in a boustrophedonic anode stack; a series of cathode collectors; a set of cathode electrodes including cathode material arranged on both side of the cathode collectors; a set of cathode interconnects interposed between and electrically coupling adjacent cathode collectors and folded to locate the cathode collectors in a boustrophedonic cathode stack with cathode collectors interdigitated between anode collectors in the boustrophedonic anode stack; and a set of separators arranged between the anode and cathode electrodes and transporting solvated ions between the anode and cathode electrodes.

Interlayers are included between electrode(s) and solid state electrolyte in electrochemical devices such as thin film batteries (TFBs), electrochromic (EC) devices, etc., Second Electrode in order to reduce the interfacial resistance and over-potential for promoting ion transport, such as lithium ion transport, through certain of the interfaces in the electrochemical device stack. Methods of manufacturing these electrochemical devices, and equipment for the same, are disclosed herein.

A method for using an integrated battery and device structure includes using two or more stacked electrochemical cells integrated with each other formed overlying a surface of a substrate. The two or more stacked electrochemical cells include related two or more different electrochemistries with one or more devices formed using one or more sequential deposition processes. The one or more devices are integrated with the two or more stacked electrochemical cells to form the integrated battery and device structure as a unified structure overlying the surface of the substrate. The one or more stacked electrochemical cells and the one or more devices are integrated as the unified structure using the one or more sequential deposition processes. The integrated battery and device structure is configured such that the two or more stacked electrochemical cells and one or more devices are in electrical, chemical, and thermal conduction with each other.

An all solid electrode structure having a solid electrolyte concentration gradient is provided and a method of improving an output performance is provided with improved ion diffusion and obtaining a high capacity battery, by disposing an anode or cathode electrode having a substantially continuous concentration gradient to have a greater solid electrolyte ratio as being closer to a solid electrolyte interface and have a greater active material ratio as being close to a current collector interface. The active material/solid electrolyte ratio of anode and cathode active material layers has a concentration gradient by a single process using an aerosol deposition method.

A device can be used as an electrode for a lithium-ion battery. The device comprises an electrically conductive substrate to the surface of which nanofilaments having an ion-absorbing coating are applied. The nanofilaments are combined by the application of light into a plurality of bundles, each having multiple nanofilaments. A spacer gap is formed between neighboring bundles.

A process for coating a carrier material with an active material for production of an electrode foil of a battery cell with a Laval nozzle, wherein the Laval nozzle has at least one converging first portion, one second portion having a smallest flow cross section, and one diverging third portion arranged one after the other along a flow direction.

A processing system for producing a product material from a liquid mixture includes an array of one or more power jet modules adapted to jet the liquid mixture into one or more streams of droplets and force the one or more streams of droplets into the processing system adapted to process the one or more streams of droplets into the product material. A method for producing a product material, from a liquid mixture on a processing system includes moving each of the one or more power jet modules and be connected to an opening of a dispersion chamber, opening one or more doors of the one or more power jet modules, processing the one or more streams of droplets inside a reaction chamber, closing the one or more doors of the power jets modules and moving each of the one or more power jet modules in a second direction.

A layer combination for an electrode can be used in rechargeable electrochemical cells. The rechargeable electrochemical cells are in the form of lithium batteries, e.g. a lithium-sulfur battery or a lithium-oxygen battery. The layer combination includes at least one superhydrophobic, nanostructured protective layer which repels polar substances.

The present invention provides a method of preparing a battery electrode, comprising: (a) providing electroactive particles; (b) mixing the electroactive particles with a graphene-based material to form a composite; and (c) spray coating the composite onto a substrate to form the battery electrode; wherein the percentage of the electroactive particles to the graphene-based material is 40-95 wt %. Furthermore, the present invention provides a high performance battery electrode and lithium sulfur battery or Lithium Metal Oxide-Sulfur battery.

The present invention aims to provide a multi-layer electrode. A method of manufacturing the multi-layer electrode according to the present invention is used in a secondary battery. The manufacturing method includes a process of sequentially spraying suspension liquid 51 to 54 that contain an active material onto a base material 50 to form two, three, four or more electrode layers 56 to 59. The process of forming the electrode layers 56 to 59 includes a process of spraying suspension liquid onto the base material 50 having a predetermined surface temperature to form an electrode layer 56 and a process of spraying suspension liquid onto the electrode layer 56 or another electrode layer having a surface temperature different from the predetermined surface temperature to form an electrode layer that is more distal than the electrode layer 56 with respect to the base material 50.