Abstract: A nanosized particle has a first phase that is a simple substance or a solid solution of element A, which is Si, Sn, Al, Pb, Sb, Bi, Ge, In or Zn, and a second phase that is a compound of element D, which is Fe, Co, Ni, Ca, Sc, Ti, V, Cr, Mn, Sr, Y, Zr, Nb, Mo, Ru, Rh, Ba, lanthanoid elements (not including Ce and Pm), Hf, Ta, W or Ir, and element A, or a compound of element A and element M, which is Cu, Ag, or Au. The first phase and second phase are bound via an interface, and are exposed to the outer surface. The surface of the first phase other than the interface is approximately spherical. Furthermore, a lithium ion secondary battery includes the nanosized particle as an anode active material.

Abstract: In a nonaqueous-electrolyte battery, a positive active material contains oxyhydroxide of nickel and aluminum. The positive active material may further contain oxyhydroxide of cobalt.

Abstract: An alkaline storage battery is described including a positive electrode comprising as an active material a cobalt hydroxide base containing from about 15 to 65 wt % nickel hydroxide and a negative electrode comprising zinc or cadmium as an active material; the alkaline storage battery can be charged rapidly, has a high energy density, and the residual capacity of the battery can be easily measured by detection of the electromotive force of the battery.

Abstract: A nickel electrode for use in an alkaline battery using a network-like alkaline-proof metal mesh having pores at the inside thereof as a core metal current collector, as well as an alkaline battery using such a nickel electrode. Inexpensive nickel electrode having high performance, great capacity can be obtained at high productivity.

Abstract: Provided are sealed pouch-cell batteries that are alkaline batteries or non-aqueous proton-conducing batteries. A pouch cell includes a flexible housing such as is used for pouch cell construction where the housing is in the form of a pouch, a cathode comprising a cathode active material suitable for use in an alkaline battery, an anode comprising an anode active material suitable for use in an alkaline battery, an electrolyte that is optionally an alkaline or proton-conducting electrolyte, and wherein the pouch does not include or require a safety vent or other gas absorbing or releasing system. The batteries provided function contrary to the art recognized belief that such battery systems were impossible due to unacceptable gas production during cycling.

Abstract: A compound represented by chemical formula: H.sub.x Li.sub.y NiO.sub.2 (0<x.ltoreq.1; 0.ltoreq.y<1; and 0.25.ltoreq.(x+y).ltoreq.2) is used as a positive active material of a lithium battery. The average oxidation number of nickel of the compound varies within a range of from 2.0 to 3.75 with charges and discharges of the battery.

Abstract: The present invention relates a high-temperature Ni—MH battery and the method for making the same. By adding a titanium additive in the anode materials at an amount of 0.1-15.0% (weight), based on the weight of the active spherical nickel hydroxide, the high-temperature charging efficiency of the Ni—MH battery can be greatly improved. The charging efficiency of the Ni—MH battery of the present invention can reach 95% at a temperature higher than 50° C. The Ni—MH battery of the present invention can be used at a temperature of 50° C. or higher.

Abstract: In a method according to the present invention for manufacturing a nickel-metal-hydride battery, a positive electrode including nickel hydroxide, a negative electrode including a hydrogen occlusion alloy, and a separator are assembled, and the assembled components are placed in a battery vessel. The battery vessel is filled with an alkali electrolyte, and the vessel is sealed so as to produce a sealed nickel-metal-hydride battery. Thereafter, a formation step including at least one charging/discharging cycle of the nickel-metal-hydride battery is carried out, and after the formation step, the nickel-metal-hydride battery is charged. After the charging, the nickel-metal-hydride battery is left in a charged state for from one day until a time when there is no discharge capacity due to self-discharge.

Abstract: Positive active material pastes for flooded deep discharge lead-acid batteries, methods of making the same and lead-acid batteries including the same are provided. The positive active material paste includes lead oxide, a sulfate additive, and an aqueous acid. The positive active material paste contains from about 0.1 to about 1.0 wt % of the sulfate additive. Batteries using such positive active material pastes exhibit greatly improved performance over batteries with conventional positive active material pastes.

Abstract: Positive active material pastes for flooded deep discharge lead-acid batteries, methods of making the same and lead-acid batteries including the same are provided. The positive active material paste includes lead oxide, a sulfate additive, and an aqueous acid. The positive active material paste contains from about 0.1 to about 1.0 wt % of the sulfate additive. Batteries using such positive active material pastes exhibit greatly improved performance over batteries with conventional positive active material pastes.

Abstract: Positive active material pastes for flooded deep discharge lead-acid batteries, methods of making the same and lead-acid batteries including the same are provided. The positive active material paste includes lead oxide, a sulfate additive, and an aqueous acid. The positive active material paste contains from about 0.1 to about 1.0 wt % of the sulfate additive. Batteries using such positive active material pastes exhibit greatly improved performance over batteries with conventional positive active material pastes.

Abstract: A positive electrode active material for lithium battery which is represented by general formula Li.sub.x Mn.sub.2-y M.sub.y O.sub.4 (M: a 2-valency metal, 0.45.ltoreq.y.ltoreq.0.60, 1.ltoreq.x.ltoreq.2.1) having cubic spinel structure of lattice constant within 8.190 angstroms.

Abstract: An alkaline secondary battery comprising a positive electrode, a negative electrode, and an alkaline electrolyte, wherein the positive electrode comprises a conductive substrate and a mixture held by the conductive substrate, the mixture containing nickel hydroxide and a conductive cobalt compound, and the positive electrode has pores, substantially all of the pores each having a diameter with a range of 0.0001 .mu.m to 10 .mu.m.

Abstract: Lithium-ion battery comprising: (a) a positive electrode comprising an amorphous chalcogenide which comprises lithium ions or which can conduct lithium ions; (b) a negative electrode; (c) a separator between the positive electrode and the negative electrode, wherein the separator comprises a non-woven material composed of fibres, preferably polymer fibres; (d) a non-aqueous electrolyte.

Abstract: A hydrogen storage battery with improved cycle life and a method for making the same. The battery has a negative electrode with an electrochemically active negative material and a negative electrode capacity and a positive electrode electrochemically coupled with the negative electrode, the positive electrode having a positive electrode capacity and an electrochemically active positive material with a precharge. Also described herein is a positive electrode material for a hydrogen storage battery and a method for making the same. The positive electrode material includes a preoxidized positive active material which is partially non-oxidized. The preoxidized material may be used to provide a precharge to the positive electrode.

Abstract: A prismatic sealed alkaline storage battery with a nickel hydroxide electrode comprising a nickel substrate having a porosity of from 86 to 98% and containing as an active material from 10 to 20% by weight of cobalt based on the sum of nickel and cobalt; the alkaline storage battery using the same as a positive electrode and a mixed solution as an electrolyte comprising sodium hydroxide and potassium hydroxide. The battery has a high Ah efficiency in a wide temperature range, a higher energy density and a longer operating life in a low termperature of 0.degree. C. or less and a high temperature of 50.degree. C. or more, thereby providing a prismatic sealed alkaline storage battery for the power sources including cycle service use, such as electric vehicles.

Abstract: A positive active material contains lithium nickel-cobaltate, and its crystal structure is amorphous. The positive active material can further contain phosphorus. The cobalt in the positive active material can be present in a content in the range of 2 to 60 mol % (Co/(Ni+Co)). A lithium battery can contain the positive active material.

Abstract: In a method of producing a positive active material for a lithium battery, a compound represented by the chemical formula HxLiyMO2 in a solution containing lithium ions is chemically oxidized, where 0≦x≦2, 0≦y≦2, 1<(x+y)≦2, and M is one or two kinds of transition metals selected from Co and Ni.

Abstract: A positive active material for lithium battery, includes a lithium-containing amorphous nickel oxide represented by a chemical composition formula of Li.sub.x NiO.sub.2 ; wherein x is from greater than 0.25 to 2. Preferably, x is from greater than 1 to 2. More preferably, x is from greater than 1.4 to 2. The positive active material may contains cobalt from 2 to 60 mol % {(Co/(Ni+Co)}.

Abstract: A high-capacity enclosed nickel-zinc primary battery excellent in characteristics such as capacity maintenance factor, energy density, and high-efficient discharge characteristics, an anode using it, and a production method for them. An enclosed nickel-zinc primary battery which uses as an anode an anode active material of nickel hydroxide compound, such as nickel oxyhydroxide, particles and uses zinc alloy gel as a cathode material, wherein a ratio of anode theoretical capacity to cathode theoretical capacity is 1.0-1.6, and a ratio of alkali electrolyte to anode theoretical capacity is 1.0-1.6 ml/Ah.