Abstract: To provide an anode material configured to increase the reversible capacity of lithium ion secondary batteries, and a method for producing the anode material. The anode material is an anode material for lithium ion secondary batteries, comprising a P element and a C element and being in an amorphous state.

Abstract: To provide an anode material configured to increase the reversible capacity of lithium ion secondary batteries, and a method for producing the anode material. The anode material is an anode material for lithium ion secondary batteries, comprising a P element and a C element and being in an amorphous state.

Abstract: The present disclosure relates to a solid electrolyte for a secondary battery which inhibits growth of lithium dendrite and is superior in cycle performance, a method for manufacturing the same, and a lithium secondary battery using the solid electrolyte. The solid electrolyte includes a polymer matrix, a lithium salt, a nitrile compound, and an additive ingredient, wherein the additive ingredient is at least one selected from a polymer or a copolymer polymerized from a monomer represented by the following Formula (1), and a polymer represented by the following Formula (2): where R1 is an olefin functional group having 2 to 6 carbon atoms; where R2 is a functional group having an ionic liquid structure such as —COOCH3, imidazole, pyrrole, piperidine, and a quaternary ammonium.

Abstract: To provide an anode material configured to increase the reversible capacity of lithium ion secondary batteries, and a method for producing the anode material. The anode material is an anode material for lithium ion secondary batteries, comprising a P element and a C element and being in an amorphous state.

Abstract: A composite solid electrolyte with excellent formability and chemical stability and high lithium ion conductivity. The composite solid electrolyte may comprise an oxide-based solid electrolyte and a sulfide-based solid electrolyte, wherein the oxide-based solid electrolyte is (Li7-3Y-Z, AlY)(La3)(Zr2-Z, MZ)O12 (where M is at least one element selected from the group consisting of Nb and Ta; Y is a number in a range of 0?Y<0.22; and Z is a number in a range of 0?Z?2), and wherein the sulfide-based solid electrolyte is VLiX-(1?V)((1?W)Li2S-WP2S5) (where X is a halogen element; V is a number in a range of 0<V<1; and W is a number in a range of 0.125?W?0.30).

Abstract: The method for manufacturing a particulate electrode active material provided by the present invention uses a carbon source supply material prepared by dissolving a carbon source (102) for forming a carbon coating film in a predetermined first solvent, and an electrode active material supply material prepared by dispersing a particulate electrode active material (104) in a second solvent that is compatible with the first solvent and is a poor solvent with respect to the carbon source. The carbon source supply material and the electrode active material supply material are mixed and a mixture of the electrode active material and the carbon source obtained after the mixing is calcined, thereby forming a conductive carbon film derived from the carbon source on the surface of the electrode active material.

Abstract: A composite solid electrolyte with excellent formability and chemical stability and high lithium ion conductivity. The composite solid electrolyte may comprise an oxide-based solid electrolyte and a sulfide-based solid electrolyte, wherein the oxide-based solid electrolyte is (Li7?3Y?Z, AlY)(La3)(Zr2?Z, MZ)O12 (where M is at least one element selected from the group consisting of Nb and Ta; Y is a number in a range of 0?Y<0.22; and Z is a number in a range of 0?Z?2), and wherein the sulfide-based solid electrolyte is VLiX—(1?V)((1?W)Li2S—WP2S5) (where X is a halogen element; V is a number in a range of 0<V<1; and W is a number in a range of 0.125?W?0.30).

Abstract: Provided is a lithium-ion secondary battery that uses a non-carbonaceous negative electrode active material capable of exhibiting capacitance properties. The lithium-ion secondary battery includes a positive electrode, a negative electrode, and a non-aqueous electrolyte solution. The negative electrode includes a mica group mineral having at least one transition metal in its composition as a negative electrode active material.

Abstract: A lithium secondary battery provided by this invention has electrodes and configured in a structure in which active material layers, including active materials and binders, are held by collectors. The active material of at least one of the positive electrode and the negative electrode of the electrodes is formed from a metal compound which stores and releases lithium ions through conversion reactions. The lithium secondary battery includes a polyimide-base resin as a binder.

Abstract: A power storage device includes a fuel cell (33), a battery holder (1) and an end plate (40) for sandwiching and binding the fuel cell, and an interposed member (11) disposed between the end plate (40) and the fuel cell (33). The battery holder (1) and the end plate (40) are made of resin, and have a positive coefficient of thermal expansion at a temperature lower than a predetermined temperature. The interposed member (11) is formed to have a substantially negative coefficient of thermal expansion at a temperature lower than the predetermined temperature.

Abstract: A negative-electrode active material characterized by containing a silicon oxide represented by a general formula SiOx (0<x<2) and a silicate compound represented by a composition formula MaSibOc-m(OH)-n(H20), and a method for the production of a negative-electrode active material which includes a mixing step of mixing a silicon oxide that is represented by a general formula SiOy (0<y<2) and a metal oxide, and a heat treatment step of performing a heat treatment on the mixture that is obtained in the mixing step in a non-oxidizing atmosphere and in which the negative absolute value of the standard Gibbs energy of the oxidation reaction of the metal oxide at the heating temperature in the heat treatment step is smaller than the negative absolute value of the standard Gibbs energy of the oxidation reaction of Si at the heating temperature in the heat treatment step.

Abstract: A lithium secondary battery provided by this invention has electrodes and configured in a structure in which active material layers, including active materials and binders, are held by collectors. The active material of at least one of the positive electrode and the negative electrode of the electrodes is formed from a metal compound which stores and releases lithium ions through conversion reactions. The lithium secondary battery includes a polyimide-base resin as a binder.

Abstract: Provided is a lithium-ion secondary battery that uses a non-carbonaceous negative electrode active material capable of exhibiting capacitance properties. The lithium-ion secondary battery includes a positive electrode, a negative electrode, and a non-aqueous electrolyte solution. The negative electrode includes a mica group mineral having at least one transition metal in its composition as a negative electrode active material.

Abstract: A lithium secondary battery 100 provided by this invention has electrodes 30 and 40 configured in a structure in which active material layers 34 and 44, including active materials and binders, are held by collectors 32 and 42. The active material of at least one of the positive electrode 30 and the negative electrode 40 of the electrodes is formed from a metal compound which stores and releases lithium ions through conversion reactions. The lithium secondary battery 100 includes a polyimide-base resin as a binder.

Abstract: A negative-electrode active material characterized by containing a silicon oxide represented by a general formula SiOx (0<x<2) and a silicate compound represented by a composition formula MaSibOc-m(OH)-n(H20), and a method for the production of a negative-electrode active material which includes a mixing step of mixing a silicon oxide that is represented by a general formula SiOy (0<y<2) and a metal oxide, and a heat treatment step of performing a heat treatment on the mixture that is obtained in the mixing step in a non-oxidizing atmosphere and in which the negative absolute value of the standard Gibbs energy of the oxidation reaction of the metal oxide at the heating temperature in the heat treatment step is smaller than the negative absolute value of the standard Gibbs energy of the oxidation reaction of Si at the heating temperature in the heat treatment step.

Abstract: The method for manufacturing a particulate electrode active material provided by the present invention uses a carbon source supply material prepared by dissolving a carbon source (102) for forming a carbon coating film in a predetermined first solvent, and an electrode active material supply material prepared by dispersing a particulate electrode active material (104) in a second solvent that is compatible with the first solvent and is a poor solvent with respect to the carbon source. The carbon source supply material and the electrode active material supply material are mixed and a mixture of the electrode active material and the carbon source obtained after the mixing is calcined, thereby forming a conductive carbon film derived from the carbon source on the surface of the electrode active material.

Abstract: In the method for manufacturing a particulate electrode active material provided by the present invention, a compound comprising phosphorus or boron is added to a mixed material prepared by mixing a carbon source supply material prepared by dissolving a carbon source (102) in a predetermined first solvent and an electrode active material supply material prepared by dispersing a particulate electrode active material (104) in a second solvent which is a poor solvent with respect to the carbon source, and a mixture of the electrode active material particles and the carbon source obtained after the addition is calcined, thereby producing a particulate electrode active material in which a conductive carbon coat derived from the carbon source is formed on the surface.

Abstract: A lithium secondary battery 100 provided by this invention has electrodes 30 and 40 configured in a structure in which active material layers 34 and 44, including active materials and binders, are held by collectors 32 and 42. The active material of at least one of the positive electrode 30 and the negative electrode 40 of the electrodes is formed from a metal compound which stores and releases lithium ions through conversion reactions. The lithium secondary battery 100 includes a polyimide-base resin as a binder.

Abstract: A negative electrode element for a lithium-ion secondary battery includes: a negative electrode current collector; and a negative electrode layer that includes an alloying active material layer formed on the negative electrode current collector and a resin layer formed on a surface of the alloying active material layer so as to have an opening that exposes part of the alloying active material layer to a surface of the negative electrode layer. The surface of the alloying active material layer, exposed to the opening, and a surface of the resin layer form a step so that the surface of the resin layer is farther from a surface of the negative electrode current collector than the exposed surface of the alloying active material layer.

Abstract: An electroactive material and a method of manufacturing the same is provided, in which the primary component of the electroactive material is a metal boron oxide complex, and the electroactive material exhibits excellent charge/discharge characteristics. The electroactive material of the present invention is primarily composed of an amorphous metal complex represented by the general formula M2-2xO2xO3. M is one or two or more metal elements selected from the transition metal elements, e.g., Fe or V. In addition, x is 0<x<1, e.g., ½. This type of electroactive material can be manufactured by amorphizing the metal complex represented by the general formula M2-2xO2xO3 by means of a mechanical milling method. In addition, the electroactive material can be manufactured by rapidly cooling and solidifying a mixture containing an oxide in which M is a constituent metal element and a boron oxide from the melted state.