Kabushiki Kaisha Toyota Chuo Kenkyusho

Toyota Jidosha Kabushiki Kaisha

Shin-ichi Ogata

Yoshiaki Fukushima

Shinji Inagaki

Masaya Kawasumi

Mamoru Mizutani

The electrolyte composition at least includes an aprotic organic solvent, a lithium salt, a flame retardant, and inorganic oxide particles. The flame retardant is at least one selected from a group consisting of a phosphorus-based acid ester having a fluorinated alkyl group and a phosphate amide having a fluorinated alkyl group.

Electrolyte composition and lithium ion secondary battery

An ionic compound is represented by formula (1): AM(OY)(OY)(OY)(OY). A is a group 1 element. M is a group 13 element. Yis one selected from an oligoalkylene ether group, an oligoalkylene thioether group, and an oligoalkylene amino group and includes an electron donating group on carbon that is located in one of &#x3b1;-&#x3b3; positions with respect to oxygen atom adjacent to M. Y, Y, and Yare the same each other or different from each other or cross-linked to each other. Y, Y, and Yare each any one of an alkyl group, an alkyl group with a fluorinated terminal, an aryl group, and one selected from the group consisting of an oligoalkylene ether group, an oligoalkylene thioether group, and an oligoalkylene amino group and including an electron donating group on carbon that is located in one of &#x3b1;-&#x3b3; positions with respect to oxygen atom adjacent to M.

Ionic compound, method for producing the same, and ion conductive material

A process for producing a crosslinked type or non-crosslinked type layered metal phosphonate compound including a reaction step of reacting two or more members selected from organic diphosphonic acids or monophosphonic acids, or derivatives thereof having predetermined conditions and a metal source capable of forming an ion of a hexacoordinate metal atom as a central atom (M) of a metal oxide octahedron upon reaction under the presence of a sulfuric acid catalyst, a crosslinked or non-crosslinked metal phosphonate compound obtained by the process, as well as a stock solution used for the synthesis of the crosslinked or non-crosslinked type layered metal phosphonate compound described above.

Crosslinked type layered metal phosphonate compound, production process therefor, non-crosslinked type layered metal phosphonate compound, production process therefor, as well as stock solution

Provided is a mesopore material and the manufacturing method thereof characterized by having uniform diameter of each pore as well as a high crystallographic regularity, comprising primary particles having a small axe with uniformity, allowing for synthesizing the primary particles with the size freely controlled, and allowing for simple manufacturing at a reduced cost. The mesopore material comprising: pores having a diameter in a range of 2 to 10 nm; and a primary particle having a major axe in a range of 10 nm to 1 .mu.m. The diameter range is defined at a maximum peak in a pore distribution curve, and 75% or more of the pores is in a diameter range of -40% to +40% of the pore diameter at the maximum peak. Further provided is a laminar silicic acid composed of the uninvertible tetrahedral sheet and has a uniform shape and size. Also provided is a laminar silicic acid salt composed of the uninvertible tetrahedral sheet and has a uniform shape and size. The laminar silicic acid comprising a laminar silicon dioxide having a laminar six-membered ring skeleton and having a crystallographic regularity. A skeleton of a clay mineral having a 1:1 laminar structure or a 2:1 laminar structure consisting of an uninvertible tetrahedral sheet of a silicon dioxide and an octahedral sheet of an oxide of a metal remains in the laminar silicic acid. Acid acts on the clay mineral to form the laminar silicic acid.

Mesopore material, laminar silicic acid, and method of manufacturing

A silicon dioxide tetrahedron sheet having a specific morphology with the pseudomorphs of the starting raw material of clay minerals for the sheet is prepared, and this is reacted with an alkylonium salt whereby a desired number of the silicon dioxide tetrahedrons are removed from the sheet by the action of the micelles of the alkylonium salt formed on the surface of the sheet to thereby form mesopores in the sheet. The mesopore material of the sheet has phyllo-structured 6-membered skeletons as connected to each other, in which each one phyllo-structured 6-membered skeleton is formed by connecting 6 silicon dioxide tetrahedrons together, and its mesopores are formed by removing a desired number of the silicon dioxide tetrahedrons from the sheet.

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Nagakute, Japan

Shin-ichi Ogata