Abstract: An electrode for an all-solid-state battery comprises an active material layer. The active material layer includes an active material, a first solid electrolyte, and a second solid electrolyte. The active material, the first solid electrolyte, and the second solid electrolyte satisfy a relationship of the following expression (1) “G2<G1<GA”. GA represents a compressive elastic modulus of the active material. G1 represents a compressive elastic modulus of the first solid electrolyte. G2 represents a compressive elastic modulus of the second solid electrolyte. Further, the active material and the first solid electrolyte satisfy a relationship of the following expression (2) “0.41rA<r1”. rA represents a particle radius of the active material. r1 represents a particle radius of the first solid electrolyte.

Abstract: A rectifier and a vehicle AC generator that can suppress the cost, the rectification loss, and the leakage current from increasing are provided. A rectifier is configured in such a way that in each of n sets, one of a positive electrode side semiconductor device and a negative electrode side semiconductor device is a MOSFET, in such a way that in at least one of the n sets, the other one of the positive electrode side semiconductor device and the negative electrode side semiconductor device is a specific diode, and in such a way that the specific diode is a Schottky barrier diode or a MOS diode, which is a MOSFET whose drain terminal and gate terminal are short-circuited.

Abstract: A secondary battery system of the present disclosure includes a secondary battery and a heating device, wherein the secondary battery includes a positive electrode and a negative electrode, and one or both of the positive electrode and the negative electrode include an active material and a granulated body, the active material includes a material whose volume changes with charge and discharge of the secondary battery, the granulated body includes an inorganic solid electrolyte and an alkali metal-containing salt, and a target heated by the heating device includes the alkali metal-containing salt.

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: 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 main object of the present disclosure is to provide a sulfide solid electrolyte with high ion conductivity. The present disclosure achieves the object by providing a sulfide solid electrolyte including a LGPS-type crystal phase containing a Li element, an M element, a P element, and a S element, wherein: the M element is at least one kind or more of an element selected from Sb, Si, Ge, Sn, B, Al, Ga, In, Ti, Zr, V, and Nb; and in a 31P-NMR measurement, when y (ppm) designates a half value width of a peak having an apex at a position of 77 ppm±1 ppm, and x (%) designates a rate of impurity phase measured, the sulfide solid electrolyte satisfies a below formula (1): y??0.0431x+4.28??(1).

Abstract: The lithium ion conductor of the present disclosure includes a first compound and a second compound, wherein the first compound is a complex halide represented by LiGaX4 (X is one or more halogens), the second compound is tetrabutylammonium bis(trifluoromethanesulfonyl)imide, and the ratio of the second compound to the sum of the first compound and the second compound is more than 0 mol % and 30 mol % or less.

Abstract: The secondary battery system according to the present disclosure includes a secondary battery, a heating device, and a control device, and the secondary battery includes a positive electrode and a negative electrode, and one or both of the positive electrode and the negative electrode include an active material, a solid electrolyte, and a Li containing salt, and the active material includes a material whose volume changes with charging and discharging of the secondary battery, and a target heated by the heating device includes Li containing salt, and the control device controls the heating by the heating device such that when it is determined that the performance of the secondary battery is equal to or lower than a certain level, the temperature of Li containing salt becomes equal to or higher than the melting point of Li containing salt.

Abstract: The present disclosure provides an ionic conductor containing Li, P, S, BH4, and I, and includes a crystalline phase X having peaks at a position of 2?=29.1°±0.5° and 30.4°±0.5° in XRD measurement using a CuK? ray.

Abstract: A main object of the present disclosure is to provide a sulfide solid electrolyte including water resistance while maintaining an argyrodite type crystal structure. The present disclosure achieves the object by providing a sulfide solid electrolyte including an argyrodite type crystal phase, and containing Li, Ge, Sb, S, I, and A, the A is an anion with ionic radius larger than that of a sulfide ion.

Abstract: Disclosed is an alkali metal ion conductor capable of improving filling ratio and ionic conductivity. The alkali metal ion conductor of the present disclosure comprises an alkali metal salt, wherein said alkali metal salt comprises a quaternary ammonium cation, an alkali metal ion, a first sulfonylamide anion, and a second sulfonylamide anion different from said first sulfonylamide anion.

Abstract: Disclosed is a technique capable of improving the filling rate of an electrolytic material and inhibiting a decrease in ionic conductivity of the electrolytic material. The electrolytic material of the present disclosure is an electrolytic material used in secondary cells, comprising a sulfide solid electrolyte and an alkali metal salt, wherein the alkali metal salt comprises a quaternary ammonium cation, an alkali metal ion, and a bistrifluoromethanesulfonylamide anion.

Abstract: A sulfide-based solid electrolyte having a composition represented by LiaGe1+bSbcP2?b?cS12, wherein 10?a?10.65, 0.35?b?0.65, and 0.075?c?0.15 are satisfied.

Abstract: A main object of the present disclosure is to provide a sulfide solid electrolyte with excellent water resistance. The present disclosure achieves the object by providing a sulfide solid electrolyte including a LGPS type crystal phase, and containing Li, Ge, P, and S, wherein: when an X-ray photoelectron spectroscopy measurement is conducted to a surface of the sulfide solid electrolyte, a proportion of Ge2+ with respect to total amount of Ge is 20% or more.

Abstract: A main object of the present disclosure is to provide a sulfide solid electrolyte with high ion conductivity. In the present disclosure, the above object is achieved by providing a sulfide solid electrolyte comprising: a Li element, an M element (M is at least one kind of P, Ge, Si and Sn), and a S element, and the sulfide solid electrolyte has an argyrodite type crystal phase, in 31P-MAS-NMR, the sulfide solid electrolyte has peak A at 82.1 ppm±0.5 ppm and peak B at 86.1 ppm±0.5 ppm, and when an area ratio of the peak A is regarded as SA, and an area ratio of the peak B is regarded as SB, a proportion of the SB to the SA, that is SB/SA, is 0.23 or less.

Abstract: Provided are sulfide solid electrolyte particles which have sufficient ion conductivity and which are, when used in an all-solid-state battery, configured to suppress a resistance increase rate after charge-discharge cycles, and an all-solid-state battery comprising the sulfide solid electrolyte particles. The sulfide solid electrolyte particles may be sulfide solid electrolyte particles comprising a sulfide solid electrolyte that comprises Li, P, S and a halogen as constituent elements, wherein an oxygen/sulfur element ratio of a particle surface measured by XPS, is 0.79 or more and 1.25 or less, and an oxygen/sulfur element ratio at a depth of 30 nm (in terms of a SiO2 sputter rate) from the particle surface measured by XPS, is 0.58 or less.

Abstract: Provided are sulfide solid electrolyte particles which have sufficient ion conductivity and which are configured to suppress hydrogen sulfide generation, and an all-solid-state battery comprising the sulfide solid electrolyte particles. Disclosed are sulfide solid electrolyte particles comprising Li, P, S and a halogen as constituent elements and having a Li/P molar ratio of more than 3, wherein an oxygen/sulfur element ratio of a particle surface measured by XPS is 0.29 or more and 0.81 and less, and an oxygen/sulfur element ratio at a depth of 30 nm (in terms of a SiO2 sputter rate) from the particle surface measured by XPS, is 0.29 or less.

Abstract: Provided are sulfide solid electrolyte particles which have sufficient ion conductivity and which are configured to suppress hydrogen sulfide generation, and an all-solid-state battery comprising the sulfide solid electrolyte particles. Disclosed are sulfide solid electrolyte particles comprising Li, P, S and a halogen as constituent elements and having a Li/P molar ratio of more than 3, wherein an oxygen/sulfur element ratio of a particle surface measured by XPS is 0.29 or more and 0.81 and less, and an oxygen/sulfur element ratio at a depth of 30 nm (in terms of a SiO2 sputter rate) from the particle surface measured by XPS, is 0.29 or less.

Abstract: A main object of the present disclosure is to provide a sulfide solid electrolyte having excellent ion conductivity and water resistance. The present disclosure achieves the object by providing a sulfide solid electrolyte comprising Li, P, S and CO32?; wherein the sulfide solid electrolyte includes a crystal phase with Li7P3S11 structure as a main phase; in an X-ray diffraction measurement using a CuK? ray, when IA designates a peak intensity of Li2S that appears at the position of 2?=27.0°±0.5°, and IB designates a peak intensity of the crystal phase that appears at the position of 2?=23.65°±0.50°, IA/IB is 0 or more and 0.39 or less; and a peak of a heterogeneous phase that appears at the position of 2?=16.5°±0.5° is not included.

Abstract: A photocurable composition includes a compound having one (meth)acryloyl group in one molecule and not having a urethane bond and a photoradical polymerization initiator as essential components, and further includes a compound having one (meth)acryloyl group in one molecule and not having a urethane bond, a compound having a (meth)acryloyl group and a urethane bond, and a compound having another ethylenically unsaturated group as optional components, in which a viscosity of the photocurable composition at 25° C. is 1 Pa·s to 100 Pa·s. The photocurable composition is a material for forming a resin layer on at least a part of a side surface of a laminated electrode body in an all-solid-state battery.