Toyota Jidosha Kabushiki Kaisha

Toyota Motor Corporation

Ilika Technologies Limited

Chihiro Yada

Christopher Edward Lee

Brian Elliott Hayden

Duncan Clifford Alan Smith

Shoji Yokoishi

Thierry Le Gall

Hiroshi Suyama

Yushi Suzuki

Keisuke Morita

Xiaojuan Lu

Mark Stephen Beal

Shingo Ohta

Kazuto Ide

Yoshitaka Minamida

Brian Elliot Hayden

Keiichi Kohama

Laura Mary Perkins

Alexandros Anastasopoulos

David Michael Laughman

Duncan C A Smith

A method for producing an all solid state battery using a precipitation-dissolution reaction of metallic Li as a reaction of an anode, includes a preparation step, a liquid composition preparation step, a coating layer formation step, and a separator formation step. The preparation step includes preparing a sulfide solid electrolyte represented by LiPSX(X is at least one of Cl, Br, and I, and a satisfies 0≤a≤2), the liquid composition preparation step includes dissolving the sulfide solid electrolyte in an alcohol-based solvent to prepare a liquid composition, the coating layer formation step includes applying the liquid composition to an anode current collector to form a coating layer, the separator formation step includes forming a separator by volatilizing the alcohol-based solvent from the coating layer by drying, and the ratio of the sulfide solid electrolyte contained in the liquid composition is 10% by weight to 30% by weight.

Method for producing all solid state battery

A method for producing an all solid state battery using a precipitation-dissolution reaction of metallic Li as a reaction of an anode, includes a preparation step, a liquid composition preparation step, a coating layer formation step, and a separator formation step. The preparation step includes preparing a sulfide solid electrolyte represented by LiPSX(X is at least one of Cl, Br, and I, and a satisfies 0&#x2264;a&#x2264;2), the liquid composition preparation step includes dissolving the sulfide solid electrolyte in an alcohol-based solvent to prepare a liquid composition, the coating layer formation step includes applying the liquid composition to an anode current collector to form a coating layer, the separator formation step includes forming a separator by volatilizing the alcohol-based solvent from the coating layer by drying, and the ratio of the sulfide solid electrolyte contained in the liquid composition is 10% by weight to 30% by weight.

A vapour deposition method for preparing an amorphous lithium-containing oxide or oxynitride compound not containing phosphorous comprises providing a vapour source of each component element of the compound, including at least a source of lithium, a source of oxygen, a source of nitrogen in the case of an oxynitride compound, and a source or sources of one or more glass-forming elements; heating a substrate to substantially 180&#xb0; C. or above; and co-depositing the component elements from the vapour sources onto the heated substrate wherein the component elements react on the substrate to form the amorphous compound.

Vapour deposition method for preparing amorphous lithium-containing compounds

An oxide electrolyte sintered body with high lithium ion conductivity and a method for producing the same, which can obtain the oxide electrolyte sintered body with high lithium ion conductivity by sintering at lower temperature than ever before. The method for producing an oxide electrolyte sintered body may comprise the steps of: preparing crystal particles of a garnet-type ion-conducting oxide which comprises Li, H, at least one kind of element L selected from the group consisting of an alkaline-earth metal and a lanthanoid element, and at least one kind of element M selected from the group consisting of a transition element that can be 6-coordinated with oxygen and typical elements belonging to the Groups 12 to 15, and which is represented by a general formula (Li,E,H)LMO(where E is at least one kind of element selected from the group consisting of Al, Ga, Fe and Si, 3&#x2264;x&#x2212;3y&#x2212;z&#x2264;7, 0&#x2264;y&#x3c;0.22, 0&#x3c;z&#x2264;2.8, 2.5&#x2264;&#x3b1;&#x2264;3.5, 1.5&#x2264;&#x3b2;&#x2264;2.5, and 11&#x2264;&#x3b3;&#x2264;13); preparing a lithium-containing flux; and sintering a mixture of the crystal particles of the garnet-type ion-conducting oxide and the flux by heating at 400&#xb0; C. or more and 650&#xb0; C. or less.

Oxide electrolyte sintered body and method for producing the same

The present invention provides a vapour deposition process for the preparation of a phosphate compound, wherein the process comprises providing each component element of the phosphate compound as a vapour, and co-depositing the component element vapours on a common substrate, wherein the component elements react on the substrate to form the phosphate compound.

Vapour deposition process for the preparation of a phosphate compound

A main object of the present invention is to provide a Li&#x2014;La&#x2014;Ti&#x2014;O based solid electrolyte material having high Li ion conductivity in the crystal grain boundary. The present invention attains the object by providing solid electrolyte material represented by a general formula: Li(LaM1) (TiM2)O, wherein 'x' is 0&#x3c;x&#x3c;0.17; 'a' is 0&#x2266;a&#x2266;0.5; &#x201c;b&#x201d; is 0&#x2266;b&#x2266;0.5; &#x201c;M1&#x201d; is at least one selected from the group consisting of Sr, Na, Nd, Pr, Sm, Gd, Dy, Y, Eu, Tb, and Ba; and &#x201c;M2&#x201d; is at least one selected from the group consisting of Mg, W, Mn, Al, Ge, Ru, Nb, Ta, Co, Zr, Hf, Fe, Cr, and Ga, and wherein the solid electrolyte material is a crystalline material, is in thin film form, and has a thickness of 250 nm to 850 nm.

Solid electrolyte material, lithium battery, and method of producing solid electrolyte material

A main object of the present invention is to provide a solid electrolyte material having excellent Li ion conductivity. To attain the object, the present invention provides a solid electrolyte material represented by a general formula: Li(LaM1)(TiM2)O, characterized in that 'x' is 0&#x3c;x&#x2266;1; 'a' is 0&#x2266;a&#x2266;2; &#x201c;b&#x201d; is 0&#x2266;b&#x2266;3; &#x201c;&#x3b4;&#x201d; is &#x2212;2&#x2266;&#x3b4;&#x2266;2; &#x201c;M1&#x201d; is at least one selected from the group consisting of Sr, Na, Nd, Pr, Sm, Gd, Dy, Y, Eu, Tb, and Ba; and &#x201c;M2&#x201d; is at least one selected from the group consisting of Mg, W, Mn, Al, Ge, Ru, Nb, Ta, Co, Zr, Hf, Fe, Cr, and Ga.

A vapor deposition process for the preparation of a chemical compound, wherein the process comprises providing each component element of the chemical compound as a vapor, and co-depositing the component element vapors on a common substrate, wherein: the vapor of at least one component element is provided using a cracking source; the vapor of at least one other component element is provided using a plasma source; and at least one further component element vapor is provided; wherein the component elements react on the substrate to form the chemical compound.

Vapour deposition process for the preparation of a chemical compound

A secondary battery is provided with a positive electrode active material layer a containing a positive electrode active material, a negative electrode active material layer containing a negative electrode active material, an electrolyte layer formed between the positive electrode active material layer and the negative electrode active material layer, and a modification material disposed at an interface between an electrolyte material and at least one electrode active material among the positive electrode active material and the negative electrode active material, and having a higher relative permittivity than the relative permittivity of the electrolyte material.

Secondary battery

The present invention provides a method for producing a ceramic laminate capable of preventing coming-off of materials and warpage of the ceramic laminate by a heat treatment at a relatively-low temperature, and a ceramic laminate produced by the production method. Disclosed is a method for producing a ceramic laminate having a layer structure in which two or more layers are laminated, including: a step of producing a laminate including a first layer and a second layer, the first layer containing a solid electrolyte and the second layer containing at least composite particles obtained by covering an electrode active material with the solid electrolyte; and a step of performing a heat treatment on the laminate including the first and second layers at a temperature of 500&#xb0; C. or more and less than 700&#xb0; C.

Method for producing ceramic laminate

A main object of the present invention is to provide a solid electrolyte material having excellent Li ion conductivity. To attain the object, the present invention provides a solid electrolyte material represented by a general formula: Li(LaM1)(TiM2)O, characterized in that 'x', 'y', and &#x201c;z&#x201d; satisfy relations of x+y+z=1, 0.652&#x2266;x/(x+y+z)&#x2266;0.753, and 0.167&#x2266;y/(y+z)&#x2266;0.232; &#x201c;a&#x201d; is 0&#x2266;a&#x2266;1; &#x201c;b&#x201d; is 0&#x2266;b&#x2266;1; &#x201c;&#x3b4;&#x201d; is 0.8&#x2266;&#x3b4;&#x2266;1.2; &#x201c;M1&#x201d; is at least one selected from the group consisting of Sr, Na, Nd, Pr, Sm, Gd, Dy, Y, Eu, Tb, and Ba; and &#x201c;M2&#x201d; is at least one selected from the group consisting of Mg, W, Mn, Al, Ge, Ru, Nb, Ta, Co, Zr, Hf, Fe, Cr, and Ga.

A main object of the present invention is to provide a solid electrolyte material having excellent Li ion conductivity. To attain the object, the present invention provides a solid electrolyte material represented by a general formula: Li(LaM1)(TiM2)O, wherein 'x', 'y', and &#x201c;z&#x201d; satisfy relations of x+y+z=1, 0.850&#x2266;x/(x+y+z)&#x2266;0.930, and 0.087&#x2266;y/(y+z)&#x2266;0.115; &#x201c;a&#x201d; is 0&#x2266;a&#x2266;1; &#x201c;b&#x201d; is 0&#x2266;b&#x2266;1; &#x201c;&#x3b4;&#x201d; is 0.8&#x2266;&#x3b4;&#x2266;1.2; &#x201c;M1&#x201d; is at least one selected from the group consisting of Sr, Na, Nd, Pr, Sm, Gd, Dy, Y, Eu, Tb, and Ba; and &#x201c;M2&#x201d; is at least one selected from the group consisting of Mg, W, Mn, Al, Ge, Ru, Nb, Ta, Co, Zr, Hf, Fe, Cr, and Ga.

An object of the present invention is to simplify the process of producing an electrode composite material. Disclosed is a method for producing an electrode composite material, comprising the steps of: preparing a material comprising Li, La, Ti and O and heating the material, wherein the composition ratio between Li, La and Ti of the material is in the range of a triangle having three vertices at LiO:LaO:TiO=23:24:53, LiO:LaO:TiO=5:36:59 and LiO:LaO:TiO=8:28:64 in the LiO&#x2014;LaO&#x2014;TiOtriangular diagram.

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Susono, Japan

Chihiro Yada