Abstract: A main object of the present invention is to provide an anode current collector that is capable of inhibiting the reaction with liquid electrolyte. The present invention achieves the object by providing an anode current collector to be used for a fluoride ion battery; and the anode current collector being a simple substance of Fe, Mg, or Ti, or an alloy containing one or more of these metal elements.

Abstract: A main object of the present invention is to provide an anode current collector that is capable of inhibiting the reaction with liquid electrolyte. The present invention achieves the object by providing an anode current collector to be used for a fluoride ion battery; and the anode current collector being a simple substance of Fe, Mg, or Ti, or an alloy containing one or more of these metal elements.

Abstract: An object of the present disclosure is to provide a liquid electrolyte for a fluoride ion battery in which decomposition of a solvent is restrained. The present disclosure attains the object by providing a liquid electrolyte for a fluoride ion battery comprising a plurality of carbonate-based solvents and a fluoride salt, wherein the plurality of carbonate-based solvents contain: i) only propylene carbonate (PC) and dimethyl carbonate (DMC), ii) only ethylene carbonate (EC) and ethyl methyl carbonate (EMC), or iii) only ethyl methyl carbonate (EMC) and dimethyl carbonate (DMC).

Abstract: An object of the present disclosure is to provide a secondary battery system that functions at high voltage. The present disclosure attains the object by providing a secondary battery system comprising: a hybrid ion battery provided with a cathode active material layer having a cathode active material that contains a metal element capable of taking two kinds or more of a positive valence, an anode active material layer having an anode active material that contains a metal element capable of taking a valence of +2 or more, and an electrolyte layer containing an alkali metal ion and fluoride anion, and formed between the cathode active material layer and the anode active material layer; and a controlling portion that controls charging and discharging of the hybrid ion battery; wherein the controlling portion controls discharging so that a potential of the cathode active material includes a potential range higher than 0.23 V (vs. SHE).

Abstract: The object of the present invention is to provide an electrolyte for a fluoride ion battery with high activity for fluoridating an active material. The present invention solves the problem by providing an electrolyte for a fluoride ion battery comprising a fluoride complex salt as at least one of LiPF6 and LiBF4, and an organic solvent; and B/A is 0.125 or more in the case where a substance amount of the organic solvent is regarded as A (mol) and a substance amount of the fluoride complex salt is regarded as B (mol).

Abstract: An alkaline storage battery contains: a positive electrode; a negative electrode containing, as an active material, at least one of a metal capable of forming a dendrite and a metal compound thereof; and an alkaline electrolyte. The alkaline electrolyte contains a compound which is a chain saturated hydrocarbon at least partially having a hydrophilic functional group other than a hydroxyl group and having a molecular weight of 400 or more and less than 220000 in an amount of less than 15 g per 100 mL of the electrolyte.

Abstract: A method for manufacturing a fluoride ion conducting electrolyte solution which can improve ionic conductivity includes a step of heating a fluoride and/or a solvent when the fluoride and the solvent are mixed, wherein a heating temperature at the step is lower than a temperature at which the solvent decomposes.

Abstract: The present application provides an electrochemical energy storage device with a desirable reaction reversibility by using a metal halide as an electrode active material. The electrochemical energy storage device disclosed herein includes: a positive electrode; a negative electrode; and a non-aqueous electrolyte in contact with the positive electrode and the negative electrode, wherein: at least one of the positive electrode and the negative electrode contains a metal halide as an electrode active material; and the non-aqueous electrolyte contains, as a solvent, an ionic liquid of which a component is a cation having an alkoxyalkyl group.

Abstract: A zinc anode material for secondary cells includes zinc-containing particles that are coated with a coating composition containing at least one oxide of a metal selected from titanium, zirconium, magnesium, tin and yttrium. The surface localization ratio of the coating composition of Equation (1) ranges from 1.6 to 16. In Equation (1), the surface metal atomic ratio of the coating composition is represented by Equation (2), and the bulk metal atomic ratio of the coating composition is represented by Equation (3).

Abstract: A zinc anode material for secondary cells includes zinc-containing particles that are coated with a coating composition containing at least one oxide of a metal selected from titanium, zirconium, magnesium, tin and yttrium. The surface localization ratio of the coating composition of Equation (1) ranges from 1.6 to 16. In Equation (1), the surface metal atomic ratio of the coating composition is represented by Equation (2), and the bulk metal atomic ratio of the coating composition is represented by Equation (3).

Abstract: The main object of the present invention is to provide an active material that has a favorable cycle property. The present invention achieves the object by providing an active material to be used for a fluoride ion battery comprising a crystal phase having a layered perovskite structure, and represented by An+1BnO3n+1??Fx (A is composed of at least one of an alkaline earth metal element and a rare earth element; B is composed of at least one of Mn, Co, Ti, Cr, Fe, Cu, Zn, V, Ni, Zr, Nb, Mo, Ru, Pd, W, Re, Bi, and Sb; “n” is 1 or 2; “?” satisfies 0???2; and “x” satisfies 0?x?2.2).

Abstract: The problem to be solved is to provide a liquid electrolyte for a fluoride ion battery which allows a larger capacity of the battery. Solving the problem by providing a liquid electrolyte for a fluoride ion battery including a fluoride salt and a solvent to dissolve the fluoride salt, characterized in that the solvent is an aromatic material having an aromatic cation and an anion, and a molar ratio of the aromatic cation to a fluoride ion is more than 1.

Abstract: An object of the present disclosure is to provide an anode layer for a fluoride ion battery in which decomposition of a binder is restrained. The present disclosure attains the object by providing an anode layer to be used for a fluoride ion battery, the anode layer comprising an anode active material and a non-fluorine-based binder having aromaticity.

Abstract: A problem of the present invention is to provide a liquid electrolyte for a fluoride ion battery, in which fluoride anion conductivity is imparted to an ionic liquid containing fluoride complex anions. The present invention solves the problem by providing a liquid electrolyte for a fluoride ion battery, which comprises an ionic liquid containing specific fluoride complex anions and an anion acceptor having a specific acceptor number.

Abstract: A secondary battery in which the difference between the voltage at the time of discharging and the voltage at the time of charging is small, ensuring good energy efficiency, and the charge/discharge life is long. Therefore, in order to attain the above-described object, a secondary battery containing a positive electrode, a negative electrode, and an electrolytic solution, wherein at least one of the positive electrode and the negative electrode contains, as the active material, at least one selected from the group consisting of a metal ion-containing fluoride, a metal oxide, a metal sulfide, a metal nitride, and a metal phosphide; the electrolytic solution contains an anion receptor; and the anion receptor forms a salt or a complex with an anion contained in the active material, thereby enabling the active material to dissolve in the electrolytic solution.

Abstract: An electrolytic: solution for electrochemical devices includes: a salt consisting of a bifluoride anion and a cation; a compound containing boron; and an organic solvent.

Abstract: An object of the present disclosure is to provide a secondary battery system that functions at high voltage. The present disclosure attains the object by providing a secondary battery system comprising: a fluoride ion battery including a cathode active material layer, an anode active material layer, and an electrolyte layer formed between the cathode active material layer and the anode active material layer; and a controlling portion that controls charging and discharging of the fluoride ion battery; wherein the cathode active material layer contains a cathode active material with a crystal phase that has a Perovskite layered structure and is represented by An+1BnO3n+1-?Fx (A comprises at least one of an alkali earth metal element and a rare earth element; B comprises at least one of Mn, Co, Ti, Cr, Fe, Cu, Zn, V, Ni, Zr, Nb, Mo, Ru, Pd, W, Re, Bi, and Sb; “n” is 1 or 2; “?” satisfies 0???3.5; and “x” satisfies 0?x?5.

Abstract: A storage battery includes a negative electrode including, as an active material, at least one of a metal capable of forming a dendrite and a metal compound thereof, a positive electrode, a separator, and an electrolyte containing an additive. In the storage battery, a concentration of the additive in the electrolyte in a region on a side of the negative electrode defined by the separator is higher than a concentration of the additive in a region on a side of the positive electrode.

Abstract: The present invention provides: a non-aqueous electrolyte for an electrochemical device, having ion conductivity sufficient for practical use and capable of improving energy density; a method for producing the same; and an electrochemical device using the same. The non-aqueous electrolyte for an electrochemical device includes a non-aqueous solvent and an alkaline earth metal chloride. The alkaline earth metal chloride is dissolved in an amount of 0.015 mol or more relative to 1 mol of the non-aqueous solvent. The total content of the non-aqueous solvent and the alkaline earth metal chloride is 70 mass % or more in the non-aqueous electrolyte.

Abstract: The present invention aims to a liquid electrolyte for a fluoride ion battery having high stability with respect to a fluoride ion. The present invention attains the object by providing a liquid electrolyte for a fluoride ion battery comprising: a fluoride salt; an alkali metal amide salt having an alkali metal cation and an amide anion; and a glyme represented by general formula: R1—O(CH2CH2O)n—R2 (in which R1 and R2 each independently represent an alkyl group with 4 or less carbon atoms or a fluoroalkyl group with 4 or less carbon atoms, and n is in the range of 2 to 10).