Abstract: A method to prepare an electrode active material of formula (1) for a secondary battery, comprising: preparing carbon coated particles of a lithium metal phosphate composite of formula (1): LiFe1?xMxPO4 ??(1) wherein x is a number from 0 to 1, inclusive, M is at least one metallic element selected from the group consisting of Mn, Co, Ni and V; preparing a first active material of the carbon coated particles of formula (1) comprising secondary particles of a coated.

Abstract: A composition for forming an electrode of a lithium secondary battery of the present invention includes: an active material represented by the following general formula (1), which is coated with conductive carbon; a dispersant; a binder; and a solvent, wherein, as the active material, secondary particles with different particle diameters are used in combination with granulated particles wherein the secondary particles are respectively formed from fine primary particles having an average primary particle diameter of 50 to 300 nm. LiFe1-xMxPO4(0?x?1)??General formula (1): (In the formula, M denotes a metallic element of at least one type selected from the group consisting of Mn, Co, Ni and V.

Abstract: The present invention relates to recording material having a laser coloring layer, wherein the laser coloring layer comprises one or more materials selected from among pigments, dyes and inorganic materials, and the laser coloring layer exhibits absorption at a wavelength within a range from 700 to 12,000 nm. The recording material of the present invention has a laser coloring layer of a desired hue, such as yellow, cyan, magenta, orange, white or black, and by conducting printing by laser irradiation, a recorded item with excellent color tone can be obtained.

Abstract: The present invention relates to recording material having a laser coloring layer, wherein the laser coloring layer comprises one or more materials selected from among pigments, dyes and inorganic materials, and the laser coloring layer exhibits absorption at a wavelength within a range from 700 to 12,000 nm. The recording material of the present invention has a laser coloring layer of a desired hue, such as yellow, cyan, magenta, orange, white or black, and by conducting printing by laser irradiation, a recorded item with excellent color tone can be obtained.