Provided are a solid electrolyte composition including an inorganic solid electrolyte and a dispersion medium (A), in which the dispersion medium (A) includes a ketone compound (A1), and at least one dispersant (A2) selected from a ketone compound (A2-1) having a chemical structure different from the ketone compound (A1) or a alcohol compound (A2-2) and a method of manufacturing the same, a solid electrolyte-containing sheet, an electrode sheet for an all-solid state secondary battery, and a method of manufacturing an all-solid state secondary battery.

Provided is a laminate that is configured to suppress a deterioration in the all-solid-state battery even if the end part of the anode layer is cracked. The laminate may be a laminate comprising an anode layer, a solid electrolyte layer and a cathode layer in this order, wherein an area in a planar direction of the cathode layer is smaller than an area in a planar direction of the anode layer; wherein an end part of the cathode layer comprises, on the solid electrolyte layer, a thin film part having a smaller thickness than a thickness of a central part of the cathode layer; and wherein the end part of the cathode layer comprises, on the thin film part, a space part formed by a level difference between the thin film part and the central part.

The present disclosure relates to solid-state electrolytes and methods of making the same. The method includes admixing a sulfate precursor including one or more of Li.sub.2SO.sub.4 and Li.sub.2SO.sub.4.H.sub.2O with one or more carbonaceous capacitor materials. The first admixture is calcined to form an electrolyte precursor that is admixed with one or more additional components to form the solid-state electrolyte. When a ratio of the sulfate precursor to the one or more carbonaceous capacitor materials in the first admixture is about 1:2, the electrolyte precursor consists essentially of Li.sub.2S. When a ratio of the sulfate precursor to the one or more carbonaceous capacitor materials in the first admixture is less than about 1:2, the electrolyte precursor is a composite precursor including a solid-state capacitor cluster including the one or more carbonaceous capacitor materials and a sulfide coating including Li.sub.2S disposed on one or more exposed surfaces of the solid-state capacitor cluster.

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.

A solid-state battery that includes: a solid-state battery laminate including at least one battery constituent unit including: a positive electrode layer, the positive electrode layer containing a conductive carbon material; a positive electrode current collecting portion arranged at an end surface of the positive electrode layer; a negative electrode layer; and a solid-state electrolyte layer interposed between the positive electrode layer and the negative electrode layer in a stacking direction thereof; a positive electrode terminal electrically connected to the positive electrode current collecting portion; and a negative electrode terminal electrically connected to the negative electrode layer.

A traction battery includes a plurality of solid-state-battery cells arranged in a stack, a pair of endplates engaging with opposing ends of the stack and configured to generate a predetermined magnitude of stack pressure in the stack, and a plate of shape-memory alloy disposed in the stack. The plate of shape-memory alloy is configured to expand or contract in thickness responsive to volume changes within the battery cells to maintain the stack pressure within a range of the predetermined magnitude.

A solid-state electrolyte film includes a first lithium salt, a first polymer, a second polymer, and a solid-state electrolyte. The first polymer has a weight average molecular weight of between 60,000 g/mol and 1,800,000 g/mol. The second polymer has a granular shape. The solid-state electrolyte has a granular shape and a particle size (D50) of between 50 nm and 2 .Math.m.

The present disclosure provides a structural unit cell, and an all-solid-state battery stack in which the structural unit cells are layered, whereby it is possible to inhibit dislocation during stacking and short circuiting. The structural unit cell comprises a first current collector layer, a first active material layer, a solid electrolyte layer, a second active material layer and a second current collector layer stacked in that order, and having an insulation frame which is disposed surrounding the outer periphery of the first active material layer, and is bonded to the first current collector layer and/or second current collector layer, wherein, as seen from the stacking direction, the first active material layer is disposed on the inner side of the outer periphery of the second active material layer, and the insulation frame has its inner periphery on the inner side of the outer periphery of the second active material layer.

A method for producing a conductive composite material for a battery such as a solid-state battery includes providing an ion-conducting electrolyte matrix that can be plasticized and that includes an ion-conducting first substance a base substance that can be plasticized and/or a polyelectrolyte; providing a second ion-conducting substance in the form of ion-conducting particles; introducing the ion-conducting particles into the electrolyte matrix to produce a mixture consisting of the ion-conducting particles and the electrolyte matrix; and homogenizing the mixture.

High-power battery architecture comprising unique anode and cathode conductive means procuring improved battery life.