Abstract: Provided are: an alkali metal titanium oxide having a uniform composition and that is such that there are no residual by-products having a different composition or unreacted starting materials; and a method for producing a titanium oxide and proton exchange body obtained by processing the alkali metal titanium oxide. The method produces an alkali metal titanium oxide by firing the result of impregnating the surface and inside of pores of porous titanium compound particles with an aqueous solution of an alkali metal-containing component. The alkali metal titanium oxide is subjected to proton exchange, and with the proton exchange body of the alkali metal titanium oxide as the starting material, the titanium oxide is produced through a heat processing step.

Abstract: Provided is a titanate compound capable of further increasing the capacity of a power storage device when used as an electrode active material thereof. The titanate compound according to the present invention includes at least 60%, based on the number thereof, of particles having an anisotropic shape and a specific surface area of 10-30 m2/g as measured by a nitrogen adsorption BET one-point method, and having a long-axis diameter (L) in the range of 0.1<L?0.9 ?m as measured by electron microscopy.

Abstract: A non-aqueous electrolyte secondary battery includes: a positive electrode; a negative electrode that includes an active material containing a titanium oxide having a lithium ion storage potential of 1.2 V or higher (versus Li/Li+); a non-aqueous electrolyte containing a lithium salt including lithium hexafluorophosphate and lithium tetrafluoroborate; and a non-aqueous solvent including ethylene carbonate, cyclic carboxylic acid ester, or cyclic carbonate having four or more carbon atoms, and chain carbonate. The content of ethylene carbonate in the entire non-aqueous solvent is 5 to 20 vol %, and the concentration of lithium tetrafluoroborate in a non-aqueous electrolyte solution is 0.05 to 0.5 mol/l.

Abstract: Provided are: an alkali metal titanium oxide having a uniform composition and that is such that there are no residual by-products having a different composition or unreacted starting materials; and a method for producing a titanium oxide and proton exchange body obtained by processing the alkali metal titanium oxide. The method produces an alkali metal titanium oxide by firing the result of impregnating the surface and inside of pores of porous titanium compound particles with an aqueous solution of an alkali metal-containing component. The alkali metal titanium oxide is subjected to proton exchange, and with the proton exchange body of the alkali metal titanium oxide as the starting material, the titanium oxide is produced through a heat processing step.

Abstract: A non-aqueous electrolyte secondary battery includes: a positive electrode; a negative electrode that includes an active material containing a titanium oxide having a lithium ion storage potential of 1.2 V or higher (versus Li/Li+); and a non-aqueous electrolyte solution that contains a lithium salt and a non-aqueous solvent that dissolves the lithium salt therein. The non-aqueous electrolyte solution contains a dinitrile compound and/or a reaction product of the dinitrile compound.

Abstract: Provided are an alkali metal titanium oxide and titanium oxide that have a novel form and are industrially advantageous. The alkali metal titanium oxide is obtained by firing the result of impregnating the surface and interior of pores of porous titanium compound particles with an aqueous solution of an alkali metal-containing component, and has the form of secondary particles resulting from the aggregation of primary particles having an anisotropic structure. The titanium oxide is obtained using the alkali metal titanium oxide as a starting material. The secondary particles can further assume a clumped structure, have a suitable size, and are easily handled, and so are industrially advantageous. In particular, the H2Ti12O25 of the present invention is an electrode material that is for a lithium secondary battery, has a high capacity and a superior initial charging/discharging rate and cycling characteristics, and has an extremely high practical value.

Abstract: An opening of a packaging member containing a positive electrode, a negative electrode, and a non-aqueous electrolyte solution is temporarily sealed to produce a temporarily sealed battery. The temporarily sealed battery is initially charged so that a negative electrode potential becomes higher than 0.8 V and 1.4 V or lower (versus Li/Li+), and is stored in an atmosphere of 50° C. or higher and lower than 80° C. Thereafter, gas is discharged from the temporarily sealed battery, and the temporarily sealed battery is finally sealed to produce a non-aqueous electrolyte secondary battery. Lithium titanate with a spinel structure, lithium titanate with a ramsdellite structure, Li4+xTi5O12, Li2+xTi3O7, a titanic acid compound given by the general formula H2TinO2n+1, or a monoclinic titanium composite oxide such as a bronze titanium oxide may be used as the titanium composite oxide.

Abstract: Disclosed is a color electrophotographic method according to which color images of high quality can be stably obtained by digital signal processing of image information. This method comprises converting a read image signal to a digital signal, subjecting the digital signal to signal processing which includes tone correction of photoreceptor and tone correction of toner color density, exposing charged photoreceptor with a light having intensity modulated according to the signal to form a electrostatic latent image and then developing the latent image.