Abstract: The present invention provides a method for producing a disulfonylamine alkali metal salt, including a step of subjecting a disulfonylamine onium salt represented by formula [I] (wherein each of R1 and R2 independently represents a fluorine atom or a fluorinated alkyl group having 1 to 6 carbon atoms, provided that at least one of R1 and R2 represents a fluorine atom, and each of R3, R4, R5 and R6 independently represents a hydrogen atom or the like) to a cation exchange reaction in an organic solvent, thereby producing a disulfonylamine alkali metal salt represented by formula [II] (wherein M+ represents an alkali metal cation, and R1 and R2 are as defined in formula [I]), and a step of filtering the organic solvent solution containing the disulfonylamine alkali metal salt through a filter having a particle retention size of 0.1 to 10 ?m to obtain a filtrate.

Abstract: A solid electrolyte comprising: LiBH4; and an alkali metal compound represented by the following formula (1): MX??(1) (in the formula (1), M represents an alkali metal atom, and X represents one selected from the group consisting of halogen atoms, NR2 groups (each R represents a hydrogen atom or an alkyl group) and N2R groups (R represents a hydrogen atom or an alkyl group)).

Abstract: The present invention provides a method for producing a disulfonylamine alkali metal salt, including a step of subjecting a disulfonylamine onium salt represented by formula [I] (wherein each of R1 and R2 independently represents a fluorine atom or a fluorinated alkyl group having 1 to 6 carbon atoms, provided that at least one of R1 and R2 represents a fluorine atom, and each of R3, R4, R5 and R6 independently represents a hydrogen atom or the like) to a cation exchange reaction in an organic solvent, thereby producing a disulfonylamine alkali metal salt represented by formula [II] (wherein M+ represents an alkali metal cation, and R1 and R2 are as defined in formula [I]), and a step of filtering the organic solvent solution containing the disulfonylamine alkali metal salt through a filter having a particle retention size of 0.1 to 10 ?m to obtain a filtrate.

Abstract: The present invention provides a polydialkylsilane, and a method for producing a polydialkylsilane, including a step of adding a compound represented by formula (I) (in formula (I), R1 and R2 independently represent an alkyl group, and X1 and X2 independently represent a halogen atom) to an organic solvent containing an alkali metal, in which 0.010 [hr?1]?the average addition rate of compound (I) [moles·hr?1]/the amount of the alkali metal [moles]?0.055 [hr?1].

Abstract: A process for producing a cyclic silane compound, in which a chained polysilane is subjected to pyrolysis in the presence of an oxide of a transition metal belonging to Group 8 or Group 11 of the periodic table; and a process for producing a cyclic carbosilane compound, that includes subjecting a chained polysilane to pyrolysis in the presence of a simple substance of a metal selected from the group consisting of transition metal elements and elements belonging to Groups 12 to 15 of the periodic table, or a compound thereof.

Abstract: The present invention provides a polydialkylsilane, and a method for producing a polydialkylsilane, including a step of adding a compound represented by formula (I) (in formula (I), R1 and R2 independently represent an alkyl group, and X1 and X2 independently represent a halogen atom) to an organic solvent containing an alkali metal, in which 0.010 [hr?1]?the average addition rate of compound (I) [moles·hr?1]/the amount of the alkali metal [moles]?0.055 [hr?1].

Abstract: A process for producing a cyclic silane compound, in which a chained polysilane is subjected to pyrolysis in the presence of an oxide of a transition metal belonging to Group 8 or Group 11 of the periodic table; and a process for producing a cyclic carbosilane compound, that includes subjecting a chained polysilane to pyrolysis in the presence of a simple substance of a metal selected from the group consisting of transition metal elements and elements belonging to Groups 12 to 15 of the periodic table, or a compound thereof.

Abstract: An all-solid-state battery includes: a positive electrode having a positive electrode current collector and a positive electrode layer on the positive electrode current collector; a negative electrode having a negative electrode current collector and a negative electrode layer on the negative electrode current collector; and an electrolyte between the positive and negative electrodes. The electrolyte is made of a first solid-state electrolyte having lithium ionic conductivity. The positive electrode layer includes a base portion and an active material portion. The base portion is made of a second solid-state electrolyte having lithium ionic conductivity in a continuous phase. The active material portion is dispersed in the base portion, and includes a positive electrode active material. The first and second solid-state electrolytes are lithium ionic conductive material having a hydride solid-state electrolyte, respectively.

Abstract: The present invention relates to: a process for producing a cyclic silane compound, which comprises subjecting a chained polysilane to pyrolysis in the presence of an oxide of a transition metal belonging to Group 8 or Group 11 of the periodic table; and a process for producing a cyclic carbosilane compound, which comprises subjecting a chained polysilane to pyrolysis in the presence of a simple substance of a metal selected from the group consisting of transition metal elements and elements belonging to Groups 12 to 15 of the periodic table or a compound thereof.

Abstract: A solid electrolyte comprising: LiBH4; and an alkali metal compound represented by the following formula (1): MX??(1) (in the formula (1), M represents an alkali metal atom, and X represents one selected from the group consisting of halogen atoms, NR2 groups (each R represents a hydrogen atom or an alkyl group) and N2R groups (R represents a hydrogen atom or an alkyl group)).