Abstract: A secondary battery control device, on a Q-dQ/dV curve, when a capacity between two characteristic points or two points mathematically equivalent thereto is represented by ?, a dQ/dV value at any extreme point of a plurality of extreme points plotted on the Q-dQ/dV curve or a point mathematically equivalent thereto is represented by ?, a product of the ? and the ? is represented by X, and constants obtained in advance from a relationship between the X in a correction sample and a deterioration degree of the correction sample are represented by A and B, a deterioration degree SOH of the secondary battery is corrected to SOH=AX+B . . . (1). A battery pack including this secondary battery control device is highly safe, contributes to the stable supply of energy and contributes to sustainable development goals.

Abstract: A battery includes a positive electrode, a negative electrode, and an electrolyte. At least one of the positive electrode and the negative electrode is an electrode containing an active material and an inorganic oxide. The inorganic oxide is in a state of being extractable with tetrahydrofuran or methyl ethyl ketone at normal temperature.

Abstract: A battery includes a positive electrode, a negative electrode, and an electrolyte. At least one of the positive electrode and the negative electrode is an electrode containing an active material and an inorganic oxide. The inorganic oxide is in a state of being extractable with tetrahydrofuran or methyl ethyl ketone at normal temperature.

Abstract: A battery device, including a negative electrode; an air electrode; an electrolyte layer that is positioned between the negative electrode and the air electrode; a first current collector on a first surface of the air electrode closest to the negative electrode; and a second current collector on a second surface of the air electrode positioned opposite to the negative electrode; where the first current collector and the second current collector are each electrically connected to the air electrode.

Abstract: A battery device, including a negative electrode; an air electrode; and an electrolyte layer that is provided between the negative electrode and the air electrode, where the air electrode includes a plurality of portions having discharge over-voltages that are different between each portion in a direction from the negative electrode to the air electrode, and where a discharge over-voltage of a portion of the air electrode closest to the negative electrode is lower than a discharge over-voltage of the other of the plurality of portions

Abstract: A battery device, including a negative electrode; an air electrode; an electrolyte layer that is positioned between the negative electrode and the air electrode; a first current collector on a first surface of the air electrode closest to the negative electrode; and a second current collector on a second surface of the air electrode positioned opposite to the negative electrode; where the first current collector and the second current collector are each electrically connected to the air electrode.

Abstract: The invention provides a battery with improved battery characteristics such as battery capacity and a cycle characteristic. The battery has a rolled electrode body obtained by rolling strip-shaped cathode and anodes sandwiching a separator in between. A lithium metal is deposited on the anode during charging, and the capacity of the anode is expressed by the sum of a capacity component determined by insertion/extraction of lithium and a capacity component determined by deposition/dissolution of a lithium metal. The separator is impregnated with an electrolyte obtained by dissolving a lithium salt in a solvent. To the electrolyte, carboxylate ester is added. Consequently, a film is formed on the surface of the anode, thereby suppressing a decomposition reaction of the solvent and a reaction between the deposited lithium metal and the solvent. By CO2 generated by decomposition of the carboxylate ester, the deposition/dissolution efficiency of the lithium in the anode is improved.

Abstract: A non-aqueous electrolyte cell equipped with an anode made of a carbonaceous material capable of intercalating and deintercalating light metal ions and imparted with high capacity characteristics and favorable cyclic properties, wherein the carbonaceous material is obtained by irradiating the carbonaceous material, in a gaseous atmosphere, with an electron beam, accelerated in high vacuum.

Abstract: A non-aqueous electrolyte cell equipped with an anode made of a carbonaceous material capable of intercalating and deintercalating light metal ions and imparted with high capacity characteristics and favorable cyclic properties, wherein the carbonaceous material is obtained by irradiating, in a gaseous atmosphere, an electron beam accelerated in high vacuum. The anode made of a carbonaceous material is subjected to electron beam irradiation at a dose ranging from 300 kGy to 1000 kGy.

Abstract: An aluminum non-aqueous electrolyte secondary cell having excellent rechargeable characteristics and comprising an aluminum or an aluminum alloy negative electrode, characterized in that it comprises a negative electrode made from aluminum or an aluminum alloy, a non-aqueous electrolyte containing a non-aqueous solvent with an aluminum halide and an organic halide dissolved therein, and a positive electrode containing FeS.sub.2 as the active material.