Abstract: An alkaline storage battery includes a positive electrode, a negative electrode containing, as an active material, at least one of a metal capable of forming dendrites and a metal compound thereof, and an alkaline electrolyte solution, wherein a compound having a primary amino group and having no carboxyl group is contained in the alkaline electrolyte solution in an amount greater than or equal to 7% by volume.

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).

Abstract: An object of the present invention is to provide a liquid electrolyte for a lithium battery in which lowering of reactivity of a Li ion and an electrode active material due to a glyme is suppressed. In the present invention, the above object is achieved by providing a liquid electrolyte for a lithium battery comprising: 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); a Li amide salt having a Li ion and a sulfonylamide anion; and a fluoride salt represented by XF (in which X represents Li, Na, K, Rb, or Cs).

Abstract: An object of the present invention is to provide a liquid electrolyte for a fluoride ion battery allowing a reaction between an active material and a fluoride ion. By providing a liquid electrolyte for a fluoride ion battery comprising: a fluoride salt; and a sulfonium compound having a cation in which R1, R2, and R3 (R1, R2, and R3 each independently represent hydrogen, an alkyl group, or a fluoroalkyl group) are bound to the S element, and an anion, wherein the molar ratio of the cation relative to the total of the cation and the fluoride ion (S+/(S++F?)) is 0.96 or more, the present invention achieves the aforementioned object.

Abstract: An electrolytic solution for a fluoride ion battery includes: a fluoride salt; and a solvent for dissolving the fluoride salt, in which the solvent is an ether-containing material having a cation and an anion, and in the cation, an ether group represented by —CH2—O—R (where R represents an alkyl group or a fluoroalkyl group) binds to a cation central element which is N or P.

Abstract: An electrochemical energy storing device disclosed herein includes a positive electrode containing a positive-electrode active material, a negative electrode, and a nonaqueous electrolyte solution which is in contact with the positive electrode and the negative electrode. The positive-electrode active material in a discharged state contains at least one selected from the group consisting of an alkali metal chloride, an alkaline-earth metal chloride, and a quaternary alkylammonium chloride. The nonaqueous electrolyte solution contains, as a solvent, an ionic liquid including cations having an alkoxyalkyl group as a component.

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 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: 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: 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: Disclosed is a high-capacity electrochemical energy storage device in which a conversion reaction proceeds as the oxidation-reduction reaction, and the separation (hysteresis) between the electrode potentials for oxidation and reduction is small. The electrochemical energy storage device includes a first electrode including a first active material, a second electrode including a second active material, and a non-aqueous electrolyte interposed between the first and second electrodes. At least one of the first and second active materials is a metal salt having a polyatomic anion and a metal ion, and the metal salt is capable of oxidation-reduction reaction involving reversible release and acceptance of the polyatomic anion.

Abstract: An object of the present invention is to provide a liquid electrolyte for a fluoride ion battery with improved fluoride ion stability. By providing a liquid electrolyte for a fluoride ion battery comprising a fluoride salt and a diol compound in which one or two ether bonds are disposed between two OH groups, the present invention achieves the aforementioned object.

Abstract: An exemplary electrochemical energy storage device includes: a positive electrode including a positive electrode active material; a negative electrode including a negative electrode active material; and a non-aqueous electrolytic solution. The non-aqueous electrolytic solution includes an electrolyte salt represented by Li(XSO2NSO2Y) (where X and Y are any of F, CnF2n+1 and (CF2)m, and (CF2)m forms a cyclic imide anion), an organic solvent which is capable of dissolving the electrolyte salt, and a polyethylene glycol of which both terminals are not OH. The positive electrode active material includes a chloride of Cu, Bi or Ag, and the negative electrode active material includes lithium.

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: An exemplary electrochemical energy storage device includes: a positive electrode including a positive electrode active material; a negative electrode including a negative electrode active material; and a non-aqueous electrolytic solution including LiCl, at least one of Li(XSO2NSO2Y) (where X and Y are any of F, CnF2n+1 and (CF2)m, and (CF2)m forms a cyclic imide anion) and LiBF4, and at least one of tetrahydrofuran and a polyethylene glycol of which both terminals are alkyl groups, the non-aqueous electrolytic solution being in contact with the positive electrode and the negative electrode, wherein the positive electrode active material includes a chloride of Cu, Bi or Ag, or the negative electrode active material includes magnesium chloride.

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: 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 invention is to provide a fluoride ion battery in which excess voltage at the time of charging is decreased. The present invention achieves the object by providing a fluoride ion battery comprising a cathode active material layer containing a cathode active material, an anode active material layer containing an anode active material, and an electrolyte layer formed between the cathode active material layer and the anode active material layer; wherein the anode active material is an alloy containing at least a Ce element and a Pb element.

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 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.