Sumitomo Metal Mining Company, Ltd.

Yoshihiro Otsuka

Masaya Yukinobu

Kazuomi Ryoshi

Yuki Murayama

Takahito Nagano

Hiroko Oshita

Motoaki Saruwatari

Oshita Hiroko

Shuuzou Ozawa

The positive electrode active material for a nonaqueous electrolyte secondary battery contains a lithium-nickel composite oxide represented by a general formula: LiNiCoMO(where 0.01≤x≤0.35, 0≤y≤0.10, 0.95≤a≤1.10, and 0≤α≤0.2; and M is at least one element selected from Mn, V, Mg, Mo, Nb, Ti, and Al) and a boron compound. At least part of the boron compound is present on the surface of the lithium-nickel composite oxide in the form of LiBOand LiBO, and a mass ratio (LiBO/LiBO) between LiBOand LiBOis at least 0.005 and up to 10. Boron is contained in an amount of at least 0.011% by mass and up to 0.6% by mass relative to the entire amount of the positive electrode active material.

Positive electrode active material for nonaqueous electrolyte secondary battery, method for producing the same, positive electrode mixture paste for nonaqueous electrolyte secondary battery, and nonaqueous electrolyte secondary battery

The positive electrode active material is for a non-aqueous electrolyte secondary battery, suppressing deterioration of battery characteristics due to exposure to the atmosphere and having excellent battery capacity. A positive electrode active material for a non-aqueous electrolyte secondary battery includes a lithium-nickel composite oxide represented by general formula (1): LiNiCoMO(in which 0.05≤x≤0.35, 0≤y≤0.10, 0.95≤a≤1.10, 0≤a≤0.2, and M represents at least one element selected from Mn, V, Mg, Mo, Nb, Ti, W, and Al) and LiBO. At least a part of a surface of the lithium-nickel composite oxide is coated with LiBO. The content of boron in the positive electrode active material is 0.001% by mass or more and 0.2% by mass or less with respect to the entire positive electrode active material.

Positive electrode active material for non-aqueous electrolyte secondary battery and method for producing the same, and non-aqueous electrolyte secondary battery and method for producing the same

A positive electrode active material for a nonaqueous electrolyte secondary battery contains a first lithium-metal composite oxide represented by General Formula: LiNiCoMnMOand containing a secondary particle formed of a plurality of flocculated primary particles and either one or both of a first compound containing lithium and boron and a second compound containing lithium and tungsten. Either one or both of the following characteristics (1) and (2) are satisfied: (1) the first compound covers surfaces of the primary particles, and a boron content is at least 0.01% by mass and up to 0.5% by mass relative to the entire positive electrode active material; and (2) the second compound covers the surfaces of the primary particles, and a tungsten content is at least 0.01% by mass and up to 1.0% by mass relative to the entire positive electrode active material.

Provided is a method for producing a coating liquid for forming a transparent conductive film, capable of forming a transparent conductive film having excellent transparency and electrical conductivity using a wet-coating method. Disclosed is the method for producing a coating liquid for forming a transparent conductive film, the method including a heating and dissolution step and a dilution step, in which the conditions for heating and dissolution/reaction of the heating and dissolution step are such that the heating temperature is in the range of 130&#xb0; C.&#x2264;T&#x2264;180&#xb0; C., and the heating time is in the range shown in FIG.

Production method for coating liquid for formation of transparent conductive film

By using a coating method, which is a simple method of manufacturing a transparent conductive film at low cost, a transparent conductive film formed with heating at a low temperature, in particular, lower than 300&#xb0; C. with both of excellent transparency and conductivity and also with excellent film strength and a method of manufacturing this transparent conductive film are provided.

Method of manufacturing transparent conductive film, the transparent conductive film, element and transparent conductive substrate using the film, as well as device using the substrate

Provided is a method for producing surface-treated oxide particles which can be used in an active-material layer for a positive electrode or a negative electrode in a storage battery. Oxide particles in which an alkaline compound is contained in a part or the whole area of the surface of each of the particles are brought into contact with a gas containing a volatile acidic compound to produce a neutralization product by a gas phase reaction, thereby producing surface-treated oxide particles in which the neutralization product is contained. The alkaline compound comprises at least one compound selected from compounds respectively containing lithium (Li), sodium (Na) and magnesium (Mg), the volatile acidic compound comprises at least one compound selected from compounds respectively containing boron (B), phosphorus (P) and silicon (Si), and the oxide particles comprise an alkali-composited oxide containing at least one transition metal selected from manganese, cobalt, nickel, iron and titanium.

Method for producing surface-treated oxide particles, and oxide particles produced by said production method

Provided is a method for producing a transparent conductive film which is formed via a coating step, a drying step and a baking step, wherein the baking step is characterized in that the dried coating film containing the organic metal compound as the main component is baked by being heated to a baking temperature or higher, at which at least the inorganic component is crystallized, under an oxygen-containing atmosphere having a dewpoint of &#x2212;10&#xb0; C. or lower, whereby an organic component contained in the dried coating film is removed therefrom by a heat decomposition, a combustion or the combination thereof to thereby form a conductive oxide microparticle layer densely filled with conductive oxide microparticles containing the metal oxide as a main component.

Method for producing transparent conductive film, transparent conductive film, transparent conductive substrate and device comprising the same

By using a coating method, which is a method of manufacturing a transparent conductive film, with low-temperature heating lower than 300&#xb0; C., a transparent conductive film with excellent transparency, conductivity, film strength, and resistance stability and a method of manufacturing this film are provided. In the method of manufacturing a transparent conductive film, a heat energy ray irradiating step is a step of irradiating with the energy rays while heating under an oxygen-containing atmosphere to a heating temperature lower than 300&#xb0; C. to form the inorganic film, and the plasma processing step is a step of performing the plasma processing on the inorganic film under a non-oxidizing gas atmosphere at a substrate temperature lower than 300&#xb0; C. to promote mineralization or crystallization of the film, thereby forming a conductive oxide fine-particle layer densely packed with conductive oxide fine particles having a metal oxide as a main component.

Method of manufacturing transparent conductive film, the transparent conductive substrate using the film, as well as device using the substrate

Provided is a method of manufacturing a metal oxide film to be formed through the following processes: a coating process of forming a coating film on a substrate by using a coating liquid for forming metal oxide film containing any of various organometallic compounds; a drying process of making the coating film into a dried coating film; and a heating process of forming an inorganic film from the dried coating film under an oxygen-containing atmosphere having a dew-point temperature equal to or lower than &#x2212;10&#xb0; C.

Method of manufacturing metal oxide film

It is aimed at providing: a coating liquid for nickel film formation suitable for forming a nickel film combinedly possessing an excellent electroconductivity and an excellent film-forming ability (surface flatness), by a coating method, particularly inkjet printing; a nickel film obtained by using the nickel film formation coating liquid; and a production method of such a nickel film. A coating liquid for nickel film formation comprises: nickel formate; and an amine based solvent having a boiling point within a range between 180&#xb0; C. inclusive and 300&#xb0; C. exclusive, as a main solvent, thereby allowing obtainment of a coating liquid for nickel film formation suitable for inkjet printing; and there can be obtained a uniform and flat nickel film having a low resistance and being excellent in film strength (adhesion force), by coating the nickel film formation coating liquid onto a substrate; drying the coated coating liquid; and subsequently calcining the dried coating liquid at a temperature of 200&#xb0; C. or higher in an inert atmosphere or reducing atmosphere.

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Ichikawa, Japan

Yoshihiro Otsuka