One variation of a battery unit includes: a substrate including silicon and defining a cell, wherein the cell includes a base encompassed by a continuous wall and a set of posts extending normal to the base; an electrolyte material coating vertical surfaces of each post, in the set of posts, and vertical surfaces of the continuous wall in the cell; a cathode material filling the cell over the electrolyte material, between posts in the set of posts, and between the set of posts and the continuous wall; a seal extending along a top of the continuous wall; and a cathode current collector bonded to the seal, electrically coupled to the cathode material, and cooperating with the substrate to enclose the cell to form a single-cell battery.

The present disclosure relates to a method of manufacturing a cathode composite for an all-solid-state battery and a method of manufacturing an all-solid-state battery including the same. In particular, the present disclosure relates to a method of manufacturing a cathode composite for an all-solid-state battery in which the cathode composite is manufactured by mixing a solid electrolyte, a conductive material and a cathode active material with a solvent, and then performing two-step vacuum drying, whereby interfacial resistance between the cathode active material, the solid electrolyte and the conductive material is reduced to thus increase ionic conductivity, thereby improving battery performance and capacity, and a method of manufacturing an all-solid-state battery including the same.

A sheathing material for an all solid state battery, the sheathing material including at least: a stack including a substrate layer, a barrier layer, and a heat fusible resin layer in this order; and an insulating layer provided on the heat fusible resin layer on the opposite side from the substrate layer side, wherein when an all solid state battery obtained by accommodating, in a packaged formed from the sheathing material for an all solid state battery, a battery element which includes at least a unit cell including a positive electrode active material layer, a negative electrode active material layer, and a solid state electrolyte layer stacked between the positive and negative electrode active material layers is seen in plan view, the insulating layer is disposed at a position covering the entire surface of the positive electrode active material layer in the all solid state battery.

Disclosed are an anode current collector including double coating layers and an all-solid-state battery including the anode current collector.

The present disclosure relates to a binder for a solid-state battery and a manufacturing method thereof. The binder may include a polymer comprising a carbonyl group and a linker comprising amino groups at both ends.

A method for preparing a lithium ion solid-state accumulator comprising an anode, a cathode, and a solid-state electrolyte includes pressing and sintering pre-calcined electrolyte powder to an electrolyte layer. The pre-calcined electrolyte powder comprises at least one phosphate compound, at least one silicide compound, or at least one phosphorus sulfide. The method further includes applying, on both sides of the electrolyte layer, one electrode each. Prior to the application of the at least one electrode layer on a surface of the sintered electrolyte layer, first, at least one intermediate layer, and, then, on this intermediate layer, the electrode layer is applied. The at least one intermediate layer is a layer of electrolyte and anode material and/or a layer of electrolyte and cathode material.

A negative electrode includes a metal substrate and a polymeric single-ion conductor coating formed on a surface of the metal substrate. The metal substrate is selected from the group consisting of lithium, sodium, and zinc. The polymeric single-ion conductor coating is formed of i) a metal salt of a sulfonated tetrafluoroethylene-based fluoropolymer copolymer or ii) a polymeric metal salt having an initial polymeric backbone and pendent metal salt groups attached to the initial polymeric backbone.

A solid ion conductor including a garnet-type oxide represented by Formula 1, a solid electrolyte including the solid ion conductor, an electrochemical device including the ion conductor, and a method of preparing the ion conductor are disclosed.

Li.sub.AM1.sub.BLa.sub.CM2.sub.DZr.sub.EM3.sub.FM4.sub.GO.sub.HX.sub.I  Formula 1

In Formula 1, M1 is a monovalent cation, a divalent cation, a trivalent cation, or a combination thereof, M2 is a monovalent cation, a divalent cation, a trivalent cation, or a combination thereof, M3 is a divalent cation, a trivalent cation, a tetravalent cation, a pentavalent cation, a hexavalent cation, or a combination thereof, M4 is Ir, Ru, Mn, Sn, or a combination thereof, X is a monovalent anion, a divalent anion, a trivalent anion, or a combination thereof, and 6≤A≤8, 0≤B<2, 2.8≤C≤3, 0≤D≤0.2, 0<E<2.0, 0<F<2.0, 0<G≤0.2, 9≤H≤12, and 0≤I≤2 are satisfied.

An electrode structure and its method of manufacture are disclosed. The disclosed electrode structures may be manufactured by depositing a first release layer on a first carrier substrate. A first protective layer may be deposited on a surface of the first release layer and a first electroactive material layer may then be deposited on the first protective layer. Subsequently, the first carrier substrate may be delaminated from the first release layer. The first release layer may then be removed from the first protective layer by dissolution in an electrolyte. The first protective layer may have a low mean peak to valley surface roughness and/or may be thin. In some embodiments, an interface between the first protective layer and the first electroactive material layer has a low mean peak to valley surface roughness. In some embodiments, a thickness of the first protective layer is greater than a mean peak to valley roughness of the first release layer. In some embodiments, an adhesive strength between the first release layer and the first protective layer is greater than an adhesive strength between the first release layer and the first carrier substrate.

A thin film battery may comprise: a substrate comprising a substrate surface; a first current collector (FCC) layer formed on the substrate surface, the FCC layer having a first FCC surface and a second FCC surface and wherein the first FCC surface is in contact with the substrate and the second FCC surface is a first three-dimensional surface; a first electrode layer deposited on the first current collector, and an electrolyte layer deposited on the first electrode layer; wherein the interface between the first electrode layer and the electrolyte layer is a second three-dimensional surface roughly in conformity with the first three-dimensional surface. In embodiments, the substrate surface is a third three-dimensional surface and the first three-dimensional surface is roughly in conformity with the third three-dimensional surface. One of the first or the third three-dimensional surfaces may be formed by a laser ablation patterning process.