Abstract: An object of the present disclosure is to provide a negative electrode active material for a fluoride-ion battery capable of improving battery capacity, and a method for manufacturing thereof. The negative electrode active material for a fluoride-ion battery of the present disclosure is represented by the following formula (1): Mg1?xMIIIxF2+x (1), wherein, MIII is a trivalent metal, and x is greater than 0 and less than 0.5. The method for the present disclosure for manufacturing a negative electrode active material comprises the following steps: providing raw materials comprising a magnesium fluoride and a fluoride of the trivalent metal, and applying mechanical impact to the raw materials to cause them to react.

Abstract: A main object of the present disclosure is to provide an anode material that is used in a fluoride ion battery of a car and can prevent the decrease in operating voltage while inhibiting occurrence of short circuit. The present disclosure achieves the object by providing a car including a fluoride ion battery, wherein the fluoride ion battery comprises a cathode layer, an anode layer, and a solid electrolyte layer formed between the cathode layer and the anode layer. The anode layer contains an anode material comprising a Mg metal powder and a fluoride ion conductive material comprised of Ca1-xBaxF2 in which x satisfies 0.5?x?0.60.

Abstract: An object of the present disclosure is to provide a fluoride-ion battery capable of achieving high charge and discharge capacities. The fluoride-ion battery of the present disclosure comprises a positive electrode active material layer, a negative electrode active material layer, and an electrolyte layer formed between the positive electrode active material layer and the negative electrode active material layer. In the fluoride-ion battery of the present disclosure, the negative electrode active material layer contains metallic magnesium, magnesium fluoride, and calcium barium fluoride, wherein a mass ratio of metallic magnesium to magnesium fluoride is 0.1 to 10.0.

Abstract: A main object of the present disclosure is to provide an anode material that is used in a fluoride ion battery of a car and can prevent the decrease in operating voltage while inhibiting occurrence of short circuit. The present disclosure achieves the object by providing a car including a fluoride ion battery, wherein the fluoride ion battery comprises a cathode layer, an anode layer, and a solid electrolyte layer formed between the cathode layer and the anode layer. The anode layer contains an anode material comprising a Mg metal powder and a fluoride ion conductive material comprised of Ca1-xBaxF2 in which x satisfies 0.5?x?0.60.

Abstract: Disclosed is a positive electrode active material capable of improving the energy density of a fluoride ion battery. The positive electrode active material for a fluoride ion battery of the present disclosure comprises copper selenide.

Abstract: A main object of the present disclosure is to provide an anode material that is used in a fluoride ion battery and can prevent the decrease in operating voltage while inhibiting occurrence of short circuit. The present disclosure achieves the object by providing an anode material to be used in a fluoride ion battery, the anode material comprising a Mg material containing a Mg element, and a fluoride ion conductive material containing at least one kind of metal element excluding a Mg element, and a F element.

Abstract: A positive electrode active material for a fluoride ion battery, and a fluoride ion battery, having reduced irreversible capacity. The positive electrode active material for a fluoride ion battery of the disclosure is iron sulfide. The iron sulfide is preferably iron(II) sulfide or iron disulfide. The fluoride ion battery of the disclosure includes the positive electrode active material of the disclosure. The fluoride ion battery of the disclosure has a positive electrode layer, an electrolyte layer and a negative electrode layer. The positive electrode layer may be constructed of a positive electrode active material layer and a positive electrode collector. The negative electrode layer may be constructed of a negative electrode active material layer and a negative electrode collector.

Abstract: A main object of the present disclosure is to provide an anode material that is used in a fluoride ion battery and can prevent the decrease in operating voltage while inhibiting occurrence of short circuit. The present disclosure achieves the object by providing an anode material to be used in a fluoride ion battery, the anode material comprising a Mg material containing a Mg element, and a fluoride ion conductive material containing at least one kind of metal element excluding a Mg element, and a F element.

Abstract: The present invention provides a production method that can produce a garnet-type compound containing zirconium and lithium, the compound being in the form of fine particles, with high productivity. The method produces a garnet-type compound containing Zr, Li, and element M1 (wherein M1 is at least one element selected from the group consisting of La, Sc, Y, and Ce) as constituent elements. The method includes a first step of (1) mixing a first raw material and a second raw material to obtain a precipitate, the first raw material being a solution containing a zirconium carbonate complex and having a pH of at least 7.0 and not more than 9.5, and the second raw material containing a compound containing the above element M1 as a constituent element; and (2) a second step of mixing the precipitate and a third raw material containing Li as a constituent element to obtain a mixture, and then firing the mixture at a temperature of less than 1,000° C. to obtain a fired product.

Abstract: The present invention provides a production method that can produce a garnet-type compound containing zirconium and lithium, the compound being in the form of fine particles, with high productivity. The method produces a garnet-type compound containing Zr, Li, and element M1 (wherein M1 is at least one element selected from the group consisting of La, Sc, Y, and Ce) as constituent elements. The method includes a first step of (1) mixing a first raw material and a second raw material to obtain a precipitate, the first raw material being a solution containing a zirconium carbonate complex and having a pH of at least 7.0 and not more than 9.5, and the second raw material containing a compound containing the above element M1 as a constituent element; and (2) a second step of mixing the precipitate and a third raw material containing Li as a constituent element to obtain a mixture, and then firing the mixture at a temperature of less than 1,000° C. to obtain a fired product.