428 patents
Page 10 of 22
Utility
Conductive composition and method for producing terminal electrode
16 Nov 21
A conductive composition has excellent adhesiveness and conductivity.
Shingo Awagakubo, Katsuhiro Kawakubo
Filed: 20 Apr 18
Utility
Positive electrode active material for nonaqueous electrolyte secondary battery, method for producing same, and nonaqueous electrolyte secondary battery using said positive electrode active material
9 Nov 21
Provided is a method for producing a positive electrode active material for nonaqueous electrolyte secondary batteries, the method including: a mixing step of obtaining a W-containing mixture of Li metal composite oxide particles represented by the formula: LizNi1-x-yCOxMyO2 and composed of primary particles and secondary particles formed by aggregation of the primary particles, 2 mass % or more of water with respect to the oxide particles, and a W compound or a W compound and a Li compound, the W-containing mixture having a molar ratio of the total amount of Li contained in water and the solid W compound or the W compound and the Li compound of 3 to 5 with respect to the amount of W contained therein; and a heat treatment step of heating the W-containing mixture to form lithium tungstate on the surface of the primary particles of the Li metal composite oxide particles.
Takashi Ozaki, Yuki Furuichi, Jun Yokoyama, Tetsufumi Komukai
Filed: 27 Nov 15
Utility
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2 Nov 21
A conductive composition has excellent adhesiveness to a substrate and conductivity.
Shingo Awagakubo, Katsuhiro Kawakubo
Filed: 20 Apr 18
Utility
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2 Nov 21
Provided is a positive electrode active material with which a nonaqueous electrolyte secondary battery can be obtained that achieves both high energy density and output characteristics and thermal stability at the time of short-circuit owing to low conductivity.
Haruki Kaneda, Yuki Koshika
Filed: 31 Aug 17
Utility
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21 Oct 21
Provided is a more efficient dry refining process for improving the recovery rate of phosphorus-free valuable metals from waste lithium ion batteries.
Yu Yamashita, Ryo Togashi
Filed: 11 Jul 19
Utility
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7 Oct 21
A positive electrode active material for a lithium ion secondary battery containing lithium nickel manganese complex oxide particles, wherein the lithium nickel manganese complex oxide particles are composed of secondary particles in which primary particles of a lithium nickel manganese complex oxide represented by a general formula LidNi1-a-b-cMnaMbZrcO2+α (where M is at least one element selected from Co, W, Mo, Mg, Ca, Al, Ti, Cr, and Ta, and is 0.05≤a<0.60, 0≤b<0.60, 0.00003≤c≤0.03, 0.05≤a+b+c≤0.60, 0.95≤d≤1.20, and −0.2≤α≤0.2), wherein at least a portion of zirconium is dispersed in the primary particle, and wherein an amount of a positive active material for a lithium ion secondary battery in which an amount of excessive lithium determined by a neutralization titration method is 0.02 mass % or more and 0.09 mass % or less.
Takuma NAKAMURA, Haruki KANEDA, Yuki KOSHIKA
Filed: 31 Jul 19
Utility
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5 Oct 21
Heat ray shielding fine particles contain calcium lanthanum boride fine particles represented by a general formula CaxLa1-xBm, a shape of each fine particle of the calcium lanthanum boride fine particles satisfies at least one of the following: 1) when scattering intensity of the calcium lanthanum boride fine particles diluted and dispersed in a solvent is measured using small-angle X-ray scattering, value Ve of a slope of a straight line is −3.8≤Ve≤−1.5, 2) the particle shape is a flat cylindrical shape, or a flat spheroidal (wherein a length of a long axis is d and a length of a short axis is h) shape, with a value of aspect ratio d/h being 1.5≤d/h≤20.
Kenji Adachi, Satoshi Yoshio
Filed: 22 Nov 17
Utility
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30 Sep 21
Haruki KANEDA, Yuki KOSHIKA, Takuma NAKAMURA
Filed: 30 Jul 19
Utility
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30 Sep 21
To provide a cathode active material capable of reducing cathode resistance of a secondary battery by enhancing electron conductivity thereof without reducing discharge capacity of the secondary battery.
Satoshi Kanada, Tetsutaro Hayashi, Ryuta Sugiura
Filed: 3 Jul 19
Utility
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30 Sep 21
A method for producing a positive electrode active material for a nonaqueous electrolyte secondary battery includes crystallizing a nickel-cobalt-manganese composite hydroxide by neutralizing a salt containing at least nickel, a salt containing at least cobalt, and a salt containing at least manganese; and firing a lithium mixture obtained by mixing the nickel-cobalt-manganese composite hydroxide with a lithium compound in an oxygen atmosphere to obtain a lithium-metal composite oxide, wherein in the crystallization process, an oxygen concentration in an atmosphere above a solution surface of the aqueous reaction solution is controlled in a range of 0.2% to 2% by volume, a temperature of the aqueous reaction solution is controlled between 38° C. to 45° C., a pH value of the aqueous reaction solution is controlled between 11.0 to 12.5, and a dissolved nickel concentration in the aqueous reaction solution is controlled in a range of 300 mg/L to 900 mg/L.
Takaaki Ando, Haruki Kaneda, Jun Suzuki
Filed: 14 May 21
Utility
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28 Sep 21
Heat ray shielding fine particles, heat ray shielding fine particle dispersion liquid, heat ray shielding film, heat ray shielding glass, heat ray shielding dispersion body, and heat ray shielding laminated transparent substrate that exhibit heat ray shielding properties and suppress scorching sensation on skin when employed in window materials and the like, also enable usage of communication devices, imaging devices, sensors, etc. that employ near-infrared light across these structures.
Mika Okada, Kenji Adachi
Filed: 2 Dec 16
Utility
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28 Sep 21
A nickel complex oxide having a carbon content of 0.15% by mass or lower.
Yuji Kawakami, Tomomichi Nihei
Filed: 25 Oct 18
Utility
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23 Sep 21
Hiroshi TAKENOUCHI, Nobuyuki KAJI, Toshihiko NAGAKURA, Kenji TAKEDA, Satoshi ASANO
Filed: 30 Jan 17
Utility
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16 Sep 21
Provided is a method for producing, from scandium oxalate crystals obtained through an oxalate conversion process, a readily-soluble scandium compound that dissolves easily in an aqueous solution such as an acid.
Tatsuya Higaki, Hiroshi Kobayashi
Filed: 23 Aug 17
Utility
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16 Sep 21
Provided is a method for recovering scandium as scandium oxide that contains high-quality scandium and in which coarse particles having good handling properties are formed.
Tatsuya Higaki, Masaki Imamura, Osamu Nakai, Hiroshi Kobayashi
Filed: 21 Aug 17
Utility
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14 Sep 21
An object of the present invention is to provide a positive electrode material for a nonaqueous electrolyte secondary battery, which is capable of inhibiting the gelation of a positive electrode composite material paste without decreasing the charge and discharge capacity and the output characteristics, when used as a positive electrode material for batteries.
Koji Yamaji, Taira Aida, Ryozo Ushio
Filed: 31 Oct 16
Utility
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9 Sep 21
Provided is a positive electrode active material with which a nonaqueous electrolyte secondary battery can be obtained that achieves both high energy density and output characteristics and thermal stability at the time of short-circuit owing to low conductivity.
Haruki KANEDA, Yuki KOSHIKA
Filed: 31 Aug 17
Utility
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31 Aug 21
An infrared-shielding nanoparticle dispersion has a property whereby visible light is adequately transmitted, and light in the near-infrared region is adequately shielded.
Hiromitsu Takeda, Kenji Adachi
Filed: 23 Feb 18
Utility
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31 Aug 21
A positive electrode composite material for a lithium ion secondary battery that makes it possible to appropriately reduce the electric resistance in a positive electrode and to realize a high-performance lithium ion secondary battery.
Daisuke Horikawa, Ryuta Sugiura, Taira Aida, Satoshi Kanada
Filed: 8 Feb 18
Utility
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31 Aug 21
Provided is a method for producing a positive electrode active material for nonaqueous electrolyte secondary batteries, including: a water-washing step of mixing, with water, Li—Ni composite oxide particles represented by the formula: LizNi1-x-yCoxMyO2 and composed of primary particles and secondary particles formed by aggregation of the primary particles to water-wash it, and performing solid-liquid separation to obtain a washed cake; a mixing step of mixing a W compound powder free from Li with the washed cake to obtain a W-containing mixture; and a heat treatment step of heating the W-containing mixture, the heat treatment step including: a first heat treatment step of heating the W-containing mixture to disperse W on the surface of the primary particles; and subsequently, a second heat treatment step of heating it at a higher temperature than in the first heat treatment step to form a lithium tungstate compound on the surface of the primary particles.
Kentaro Kondo, Jun Yokoyama, Yuki Furuichi, Tetsufumi Komukai
Filed: 23 Oct 19