Abstract: A lithium metal composite oxide powder including: secondary particles that are aggregates of primary particles, and single particles that are present independently of the secondary particles, wherein the lithium metal composite oxide is represented by composition formula (I), and the single particles have an average crushing strength exceeding 80 MPa: Li[Lix(Ni(1-y-z-w)CoyMnzMw)1-x]O2??(I) wherein M is one or more metal elements selected from the group consisting of Fe, Cu, Ti, Mg, Al, W, B, Mo, Nb, Zn, Sn, Zr, Ga, La and V, ?0.1?x?0.2, 0?y?0.4, 0?z?0.4, and 0?w?0.1.

Abstract: According to one embodiment, a secondary battery including a positive electrode, a negative electrode, an insulating layer, and a nonaqueous electrolyte is provided. The positive electrode includes a positive electrode active material-containing layer containing a lithium nickel cobalt manganese composite oxide. The negative electrode includes a negative electrode active material-containing layer having a first surface. The insulating layer includes a solid electrolyte layer having a second surface that is at least partly opposed to or partly in contact with the first surface and containing a Li ion conductive oxide. At least part of the second surface or the first and second surfaces includes a Mn-containing substance. An abundance ratio of Mn on the second surface is higher than that on the first surface.

Abstract: A solid electrolyte material according to the present disclosure is represented by the chemical formula Li6?4b+ab(Zr1?aMa)bX6 (I). M denotes at least one element selected from the group consisting of Al, Ga, Bi, Sc, Sm, and Sb, X denotes at least one halogen element, and the two mathematical formulae 0<a<1 and 0<b<1.5 are satisfied.

Abstract: A cylindrical battery includes a metal can, an electrode assembly mounted in the metal can, a top cap closing an upper end of the metal can, the top cap having an exhaust hole, a safety vent located at an upper end of the electrode assembly, and a gas discharge member provided in the safety vent, in which the gas discharge member includes a thin film part having at least two thin films.

Abstract: A solid electrolyte material according to the present disclosure is represented by the chemical formula Li6-4aMaX6. M denotes at least one element selected from the group consisting of Zr, Hf, and Ti, X denotes at least one halogen element, and a is greater than 0 and less than 1.5.

Abstract: Provided are electrochemical cells, comprising water-retaining components, and methods of fabricating such electrochemical cells. A water-retaining component is configured to deliver water to the positive active material during the operation of the electrochemical cell. The water-retaining component may be a part of the positive active material layer, a part of the electrolyte layer, and/or a standalone component. In some examples, the water-retaining component comprises one or more crystal hydrates (e.g., MgSO4, MgCl2, Na2SO4, Na2HPO4, CuSO4, CaCl2, KAl(SO4)2, and Mg(NO3)2), one or more water-retaining polymers (e.g., sodium polyacrylate, potassium polyacrylate, ammonium polyacrylate, and a cellulose derivative), one or more inorganic compounds (e.g., fumed silica, precipitated silica). In some examples, a method of forming an electrochemical cell comprises printing a positive active material layer, a negative active material layer, and an electrolyte layer, e.g.

Abstract: An all-solid-state battery includes a case, a battery element, and a restraint component. The case accommodates the battery element. The battery element includes an electrode part and a resin part. The resin part covers at least a part of a side face of the electrode part. The restraint component applies a first pressure to the electrode part. The restraint component applies a second pressure to the resin part. The ratio of the second pressure to the first pressure is from 1.5 to 18.

Abstract: A solid-state ion conductor includes a compound of Formula (I): Li4+(b?a)y+c?+(a??)xM13+x+yM23?yM?xO12X1cX21?c??Formula (I) wherein, M1 is a cationic element having an oxidation state of +2 or +3; M2 is a cationic element having an oxidation state of +4 or +5; M? is a cationic element having an oxidation state of ?, wherein ? is less than b; X1 is a cluster anion having an oxidation state of (?1-?), wherein ? is 0 or 1; X2 is a halogen; 0<c?1; 0?x?1; and 0?y?2.

Abstract: A battery with a fire protection device, wherein the battery includes a plurality of battery cells and a battery housing, wherein a respective battery cell is arranged in an interior space of the battery housing. The fire protection device includes a composite layer with a thermal insulation layer and with a protective layer arranged on the insulation layer, wherein the composite layer is arranged on a battery housing interior side facing the interior space of the battery housing, and the insulation layer is arranged as an intermediate layer between a surface of the battery housing interior side and the protective layer and is protected by the protective layer against a gas and/or flame stream exiting the respective battery cell in the event of damage, whereby its thermally insulating properties are maintained.

Abstract: A solid electrolyte for an all-solid-state sodium battery, represented by formula: Na3?xSb1?x?xS4, wherein ? is selected from elements that provide Na3?xSb1?x?xS4 exhibiting a higher ionic conductivity than Na3SbS4, and x is 0<x<1.

Abstract: A non-catalytic microcombustion based FFC for the direct use of hydrocarbons for power generation. The potential for high FFC performance (450 mW·cm?2 power density and 50% fuel utilization) in propane/air microcombustion exhaust was demonstrated. The micro flow reactor was used as a fuel reformer for equivalence ratios from 1-5.5. Soot formation in the micro flow reactor was not observed at equivalence ratios from 1 to 5.5 and maximum wall temperatures ranging from 750 to 900° C. H2 and CO concentrations in the exhaust were found to have a strong temperature dependence that varies with the maximum wall temperature and the local flame temperature.

Abstract: Disclosed herein are improved methods and devices for recycling lithium cathodes from batteries using a Soxhlet extractor.