Abstract: A battery according to the present disclosure includes a positive electrode, a negative electrode, and an electrolyte layer positioned between the positive electrode and the negative electrode. The positive electrode includes a positive electrode material. The positive electrode material includes a positive electrode active material and a first solid electrolyte material. The positive electrode active material includes LixMnyO2, where 0?x?1.05 and 0.9?y?1.1 are satisfied. The negative electrode includes an alloy as a negative electrode active material, and the alloy includes Ni and Bi.

Abstract: A positive electrode active material includes LixMnyO2, wherein 1.012?x?0.683 and 0.91?y?1.0.

Abstract: A battery according to the present disclosure includes a positive electrode, a negative electrode, and an electrolyte layer positioned between the positive electrode and the negative electrode. The positive electrode includes a positive electrode material. The positive electrode material includes a positive electrode active material and a first solid electrolyte material. The positive electrode active material includes LixMnyO2, where 0?x??1.05 and 0.9?y?1.1 are satisfied. The negative electrode includes Bi as a main component of a negative electrode active material.

Abstract: A battery according to the present disclosure includes: a positive electrode; a negative electrode; and an electrolyte layer positioned between the positive electrode and the negative electrode. The positive electrode includes a positive electrode material. The positive electrode material includes a positive electrode active material and a first solid electrolyte material. The positive electrode active material includes an oxide consisting of Li, Ni, Mn, and O. The first solid electrolyte material includes: Li; at least one selected from the group consisting of metalloid elements and metal elements except Li; and at least one selected from the group consisting of F, Cl, and Br. The negative electrode includes Bi as a main component of a negative electrode active material.

Abstract: A battery includes: a first electrode; a second electrode; and an electrolytic solution, wherein the first electrode includes a current collector and an active material layer, the active material layer contains Bi as a main component of an active material, and the electrolytic solution contains at least one selected from the group consisting of vinylene carbonate and fluoroethylene carbonate.

Abstract: A charge/discharge method of an air battery is a charge/discharge method of an air battery including a positive electrode, a negative electrode, and a nonaqueous electrolyte liquid containing a nonaqueous solvent and a lithium salt dissolved in the nonaqueous solvent, the nonaqueous electrolyte liquid being interposed between the positive electrode and the negative electrode, the charge/discharge method includes: discharging the air battery; and supplying a charging liquid different from the nonaqueous electrolyte liquid from the outside to the inside of the air battery so that a discharge product generated by the discharging is desorbed from the positive electrode while being in the form of a solid.

Abstract: A battery includes a first electrode, a second electrode, and a solid electrolyte layer disposed between the first electrode and the second electrode, the first electrode includes a current collector and an active material layer disposed between the current collector and the solid electrolyte layer, the active material layer contains Bi3Ni, and the Bi3Ni has a crystal structure of space group Pnma.

Abstract: A battery includes a first electrode, a second electrode, and a solid electrolyte layer disposed between the first electrode and the second electrode, the first electrode includes a current collector and an active material layer disposed between the current collector and the solid electrolyte layer, the active material layer contains BiNi, and the BiNi has a crystal structure of space group C2/m.

Abstract: A battery includes a first electrode, a second electrode, and a solid electrolyte layer disposed between the first electrode and the second electrode, in which the first electrode includes a current collector and an active material layer disposed between the current collector and the solid electrolyte layer, and the active material layer contains Bi as a main component of an active material.

Abstract: The lithium secondary battery of the present disclosure comprises an anode including an anode current collector and an anode active material; an electrolyte liquid; and a cathode including a cathode active material layer disposed on a cathode current collector. The anode includes a material capable of forming an alloy with lithium during charge. The electrolyte liquid contains lithium ions and the counter anions thereof, contains at least one substance selected from the group consisting of phenanthrene, biphenyl, triphenylene, acenaphthene, acenaphthylene, fluoranthene, and benzyl at a concentration of not less than 0.00625 mol/L and not more than 0.05 mol/L, and includes, as a solvent, at least one selected from the group consisting of a cyclic ether, a glyme, and a sulfolane.

Abstract: A non-aqueous magnesium battery includes a positive electrode, a negative electrode, and an electrolyte. The positive electrode contains a positive electrode active material and can occlude and release magnesium ions. The electrolyte solution contains, for example, a magnesium salt. The positive electrode active material contains nickel oxyhydroxide, and the nickel oxyhydroxide is layered.

Abstract: A flow battery includes a negative electrode, a positive electrode, a first liquid in contact with the negative electrode, a second liquid in contact with the positive electrode, and a lithium-ion-conductive film disposed between the first liquid and the second liquid. At least one of the first liquid or the second liquid contains a redox species and lithium ions. The lithium-ion-conductive film includes an inorganic member containing zeolite.

Abstract: A nonaqueous electrolyte secondary battery according to the present invention is provided with a negative electrode, a positive electrode and a nonaqueous electrolyte. A negative electrode active material contained in the negative electrode contains a zinc manganese alloy containing Zn, Mn and Fe that is in an amount of 1,000 ppm or less of the total mass of Zn and Mn. With respect to the zinc manganese alloy, the molar ratio of the Zn content to the Mn content is from 3 to 13.

Abstract: A nonaqueous electrolyte secondary battery according to the present invention is provided with a negative electrode, a positive electrode and a nonaqueous electrolyte. A negative electrode active material contained in the negative electrode contains a zinc manganese alloy that is represented by general formula MnZnx (3?x?13).

Abstract: A nonaqueous electrolyte secondary battery includes a positive electrode capable of occluding and releasing lithium, a negative electrode including a negative electrode current collector, and an electrolyte solution including a solvent. In the nonaqueous electrolyte secondary battery, lithium metal precipitates on the negative electrode during charging. The lithium metal dissolves in the electrolyte solution during discharging. The solvent is composed only of vinylene carbonate.

Abstract: A nonaqueous electrolyte secondary battery includes a positive electrode capable of occluding and releasing lithium, a negative electrode including a negative electrode current collector and a negative electrode active material, and an electrolyte solution including a solvent. In the nonaqueous electrolyte secondary battery, the negative electrode active material includes metal zinc or an alloy of metal zinc. The solvent is composed only of vinylene carbonate.

Abstract: A lithium ion secondary battery includes a positive electrode, a negative electrode, and an electrolyte disposed between the positive electrode and the negative electrode. The electrolyte includes a polymeric electrolyte. The polymeric electrolyte is composed of a polymer and a lithium salt of a fluorosulfonyl-group-containing compound, and the polymer is a polymer of a vinylene carbonate species. The lithium salt of a fluorosulfonyl-group-containing compound includes lithium bis(fluorosulfonyl)imide.

Abstract: A flow battery according to one aspect of the present disclosure includes: a first liquid containing dissolved therein a charge mediator and a discharge mediator; a first electrode immersed in the first liquid; and a first active material immersed in the first liquid. The equilibrium potential of the charge mediator is lower than the equilibrium potential of the first active material, and the equilibrium potential of the discharge mediator is higher than the equilibrium potential of the first active material.

Abstract: In a flow battery according to one aspect of the present disclosure, a first liquid does not include an undesired compound. The flow battery satisfies requirement (i), (ii), (iii) or (iv). (i) An anode active material 14 includes graphite, and the first liquid has an equilibrium potential of not more than 0.15 V vs. Li/Li+. (ii) An anode active material includes aluminum, and the first liquid has an equilibrium potential of not more than 0.18 V vs. Li/Li+. (iii) An anode active material includes tin, and the first liquid has an equilibrium potential of not more than 0.25 V vs. Li/Li+. (iv) An anode active material includes silicon, and the first liquid has an equilibrium potential of not more than 0.25 V vs. Li/Li+.

Abstract: The flow battery in an aspect of the present disclosure includes a first liquid containing a lithium ion and a first redox material, a first electrode in contact with the first liquid, a second electrode functioning as a counter electrode of the first electrode, an isolation unit that isolates the first electrode and the second electrode from each other, a first chamber, and a first circulation mechanism for circulating the first liquid between the first electrode and the first chamber, and in the flow battery, the first liquid is non-aqueous and the first circulation mechanism includes a magnetically driven pump.