Kao Corporation

Nissan Motor Company Limited

Kazuo Oki

Mikio Sakaguchi

Hiroji Hosokawa

Takamitsu Saito

Tamaki Miura

Kyoichi Watanabe

Kenichi Nishimura

Hitoshi Takaya

Akito Itoi

Hiroaki Kitayama

Yasuhisa Fukumoto

Minoru Sawai

Ryuichi Akagi

Hiroshi Kitagaito

Kazuo Taguchi

Hideki Goto

Shu Yamaguchi

Masayuki Kato

Mikio Kawai

Kazuhiro Otsuka

Atsushi Hiraishi

Motomitsu Hasumi

Kyoichi Shirota

Kazuo Kuwahara

Taketo Kaneko

Jun Kozuka

Kimihiro Mizusawa

Kei Takahashi

Mieko Kawai, Legal Representative

Takashi Miyaji

Taiki Fukuda

Tadanobu Asada

Yuya Kozaki

An aspect of the present disclosure relates to a dispersant for an electrode of a power storage device. The dispersant contains a repeating unit represented by the following general formula (1), where a, b, and c each represent a mole fraction, provided that a+b+c=1, and b and c satisfy the relationship expressed by 0.50<b+c≤1.00 and 0.50≤b/b+c)≤0.95. Ris preferably a branched alkyl group. Ris preferably an alkyl group with 1 to 12 carbon atoms, a saturated hydrocarbon group with 1 to 12 carbon atoms that includes an alicyclic hydrocarbon group, or a saturated hydrocarbon group with 1 to 12 carbon atoms that has a hydroxyl group.

Dispersant for power storage device electrode

An aspect of the present disclosure relates to a dispersant composition for an electrode of a power storage device. The dispersant composition contains an acrylic polymer (A), a compound (B) represented by the following formula (1), and an organic solvent (C). The acrylic polymer (A) contains a constitutional unit a represented by the following formula (3). In the formula (1), Rrepresents a group represented by the following formula (2), and Rrepresents a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or —CHCH—OH. In the formula (2), R, R, R, and Rare the same or different and represent a hydrogen atom, a methyl group, or —CHOH.

Dispersant composition for electricity storage device electrodes

One aspect provides a resin composition that is used for an electrode of a power storage device and that has excellent ion permeability while ensuring good binding properties with an electrode. One aspect of the present disclosure relates to a resin composition for an electrode of a power storage device. The resin composition contains polymer particles. The polymer particles have ion permeability. A rate of change in elasticity of the polymer particles before and after treatment with an electrolyte solution [(modulus of elasticity after treatment)/(modulus of elasticity before treatment)] is 30% or less.

Resin composition for power storage device electrode

The burned composite metal oxide of the present invention is a burned composite metal oxide which is porous and particulate and which is obtained by subjecting a slurry comprising at least one metal oxide (a), at least one metal compound (b) and a solvent to spray granulation to obtain granules, and burning the granules, the metal oxide (a) selected from the group consisting of a transition metal oxide and an oxide of a metal belonging to 3B, 4B and 5B of a periodic table, the metal compound (b) selected from the group consisting of an alkali metal compound and an alkali earth metal compound, wherein the metal oxide (a) and the metal compound (b) are sparingly soluble in the solvent; the burning is conducted after a heat-maintaining step of heating the granules obtained by the spray granulation at a temperature in a range of &#xb1;200&#xb0; C. based on the decomposition temperature of the metal compound (b); and the metal compound (b) contains at least a nonmetallic element component desorbed in the heat-maintaining step.

Burned composite metal oxide and process for producing the same

The present invention provides a composite material for positive electrodes of lithium batteries, which provides a lithium battery having excellent high rate electrical discharge characteristics, has a sufficiently secured diffusion passage for Li, and has high conductivity, a process for producing the same, as well as a positive electrode and a battery using the composite material for positive electrodes of lithium batteries. The present invention relates to a composite material for positive electrodes of lithium batteries, comprising composite particles containing positive electrode active material particles and fibrous carbons, wherein the composite particles have a form in which the positive electrode active material particles are supported by the fibrous carbons.

Composite material for positive electrode of lithium battery

The present invention provides a method for producing a composite material for positive electrodes of lithium batteries which is particularly excellent in high-rate discharge characteristics. The method for producing a composite material for positive electrodes of lithium batteries, contains: a dispersing step of dispersing at least the positive electrode active material and the conductive material 1 in a solvent to be in a forcibly dispersed state; and a composite particle-forming step of obtaining composite particles containing the positive electrode active material and the conductive material 1 by a process for agglutinating the conductive material 1 together with the positive electrode active material in the solvent or by a process for removing the solvent.

Method for producing composite material for positive electrode of lithium battery

In the present invention, ceramic particles are used as an optical diffusible filler. The present invention provides an optical diffusible material containing ceramic particles, wherein the ceramic particles satisfy the following requirements (I) and (II): (I) the total amount of AlOor MgO and SiOis 80% by weight or more; and (II) the weight ratio of AlOor MgO to SiO((AlOor MgO)/SiO) is 0.1 to 15.

Optical diffusible material

It is an object of the present invention to provide a light diffusing member which has excellent optical transparency and light resistance and has excellent light diffusibility despite of a small amount of filler to be added, and a method for producing the same. The light diffusing member of the present invention is a light diffusing member including a base material and ceramic particles contained in the base material, wherein the ceramic particles have a composition in which the total amount of MgO and AlOis 80% by weight or more and the weight ratio [MgO/AlO] of MgO and AlOis 0.05 to 5.

Light diffusing member with ceramic particles containing magnesium oxide and aluminum oxide

The present invention provides a composite positive electrode material for a lithium ion battery, which is particularly excellent in high-rate discharge characteristics in a battery, and also provides a slurry, positive electrode and battery using the composite positive electrode material. The composite positive electrode material for a lithium ion battery contains: a positive electrode active material (a); a conductive material (b) having a primary particle diameter of 10 to 100 nm and/or a fibrous conductive material (c) having a fiber diameter of 1 nm to 1 &#x3bc;m; and a conductive material (d) having an aspect ratio of 2 to 50.

Composite positive electrode material for lithium ion battery and battery using the same

A ceramics particle produced by a flame fusion method, containing MgO and SiOas main components, and having a MgO/SiOweight ratio of from 1.0:1 to 1.45:1, and an average particle size of from 0.001 to 1.5 mm; a spherical molding sand containing MgO and SiOas main components, and having a MgO/SiOweight ratio of from 1.0:1 to 1.45:1, and an average particle size of from 0.001 to 1.5 mm, produced by a flame fusion method; a spherical molding sand, comprising MgO and SiOas main components, and having a MgO/SiOweight ratio of from 1.0:1 to 1.45:1, an average particle size of from 0.001 to 1.5 mm, and a spherical degree of 0.95 or more; a process for producing the above spherical molding sand; a casting mold containing the spherical molding sand as defined above; and a casting produced by casting with the mold as defined above.

Ceramics particle

The present invention relates to use of an aluminosilicate particle for deodorization, wherein the aluminosilicate particle has the composition of: s M(1)Ot M(2)O.AlOu SiOv RQw HO, wherein M(1) is one or more members selected from the group consisting of Ag, Cu, Zn and Fe, M(2) is one or more members selected from the group consisting of Na, K and H, R is one or more members selected from the group consisting of Na, K, Ca and Mg, Q is one or more members selected from the group consisting of CO, SO, NO, and Cl, s satisfies 0&#x3c;s&#x2266;3, and t satisfies 0&#x2266;t&#x2266;3, with proviso that s+t is from 0.5 to 3, and u satisfies 0.5&#x2266;u&#x2266;6, v satisfies 0&#x3c;v&#x2266;2, w satisfies w&#x2267;0, x satisfies 1&#x2266;x&#x2266;2, y satisfies 1&#x2266;y&#x2266;3, m satisfies 1&#x2266;m&#x2266;2, and n satisfies 1&#x2266;n&#x2266;3, and wherein the aluminosilicate particle has a specific surface area of 1 m/g or more and less than 70 m/g.

Deodorant

A process for efficiently preparing fine zeolite particles comprising synthesizing zeolite in the presence of an alkaline earth metal-containing compound and/or with controlling the preparation process of zeolite, thereby giving fine zeolite particles being composed of crystalline aluminosilicate, the fine zeolite particles having a fine average primary particle size, being excellent in the cationic exchange properties and the oil-absorbing ability, having a fine average aggregate particle size, and being excellent in the dispersibility; fine zeolite particles obtainable by the above process; and a detergent composition comprising the fine zeolite particles, the detergent composition being excellent in the detergency.

Process for preparing fine zeolite particles

Base particles for supporting a surfactant, obtainable by a step of spray-drying a slurry comprising (A) a zeolite having an average aggregate particle diameter of 15 &#x3bc;m or less and a variation coefficient of a distribution of an aggregate particle diameter of 29% or less, (B) a water-soluble polymer; (C) a water-soluble salt, and (D) a surfactant in an amount of 5% by weight or less of the slurry; detergent particles comprising the base particles; and a zeolite for a laundry detergent, wherein the zeolite has an average aggregate particle diameter of 15 &#x3bc;m or less and a variation coefficient of a distribution of an aggregate particle diameter of 29% or less; and a process for preparing base particles for supporting a surfactant, comprising a step of spray-drying a slurry comprising a zeolite (A) having an average aggregate particle diameter of 15 &#x3bc;m or less and a variation coefficient of a distribution of an aggregate particle diameter of 29% or less, a water-soluble polymer (B), a water-soluble salt (C), and optionally a surfactant (D) so as to give base particles comprising 1 to 90% by weight of the zeolite (A), 2 to 25% by weight of the water-soluble polymer (B), 5 to 75% by weight of the water-soluble salt (C), and optionally 0 to 5% by weight of the surfactant (D).

Base particles and detergent particles

Process for preparing fine alkaline earth metal zeolite particles

A fine A-type zeolite particle having an average primary particle size of 0.1 &mgr;m or less and a variation coefficient of 90% or less, wherein a ratio of a peak area above a background level to all peak are in the range of 2&thgr;&equals;20&deg; to 40&deg; in a powder X-ray diffraction spectrum of said fine A-type zeolite particle is 30% or more; a process for preparing the fine A-type zeolite particle, comprising reacting a silica source with an aluminum source in the presence of an organic compound having an oxygen-containing functional group and a molecular weight of 100 or more; and a detergent composition comprising a surfactant and the fine A-type zeolite particle. The fine zeolite particle is suitably used for detergent builders, water treatment agents, fillers for paper, resin fillers, oxygen-nitrogen separating agents, adsorbents, catalyst carriers, soil improvers for gardening, polishing agents, and the like.

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Wakayama, Japan

Kazuo Oki