227 patents
Page 4 of 12
Utility
Nickel Powder, Method for Manufacturing Nickel Powder, Internal Electrode Paste Using Nickel Powder, and Electronic Component
1 Sep 22
To provide a fine nickel powder for an internal electrode paste of an electronic component, the nickel powder obtained by a wet method and having high crystallinity, excellent sintering characteristics, and heat-shrinking characteristics.
Junji ISHII, Shingo MURAKAMI, Hiroyuki TANAKA, Takahiro KAMATA, Toshiaki TERAO, Masaya YUKINOBU, Yuji WATANABE, Tsutomu TANIMITSU, Yoshiyuki KUNIFUSA, Haruo NISHIYAMA
Filed: 13 May 22
Utility
Positive Electrode Active Material for Lithium-ion Secondary Batteries, Method for Producing Same, and Lithium-ion Secondary Battery
25 Aug 22
The method includes: a dry mixing process of mixing a tungsten compound with a lithium nickel manganese cobalt-containing composite oxide that is a base material to obtain a mixture; a water spray mixing process of spraying water to the mixture while the mixture is stirred, to mix the mixture; a heat treatment process of subjecting the mixture obtained after the water spray mixing process to a heat treatment at a temperature of 500° C. or lower; and a drying process of drying the mixture obtained after the heat treatment process at a temperature of 500° C. or lower to obtain a W- and Li-containing compound-coated lithium nickel manganese cobalt-containing composite oxide in which fine particles and coating films of a W- and Li-containing compound exist on a surface of the primary particles, and in at least drying process, the drying is performed using a vacuum dry mixing apparatus in a vacuum atmosphere.
Toshihiro Kato, Tetsutaro Hayashi, Willy Shun Kai Bong
Filed: 8 Jun 20
Utility
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11 Aug 22
Provided is a nickel powder in which growth of the nickel hydroxide component into a plate-shaped crystal is suppressed in the oxide film, and the content of coarse particles containing plate-shaped nickel hydroxide is small, and provided is a method for manufacturing the nickel powder by a wet process in which the nickel powder can be produced further simply and easily.
Yuki Kumagai, Atsushi Igari, Minseob Shin, Shingo Suto, Masaya Yukinobu
Filed: 30 Jul 20
Utility
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11 Aug 22
An infrared-absorbing fine particle-containing composition, including: infrared absorbing fine particles, a dispersant, and a solvent, wherein the dispersant has a polyether structure, has a glass transition temperature of −150° C. or higher and 0° C. or lower, and is contained in an amount of 10 parts by mass or more with respect to 100 parts by mass of the infrared absorbing fine particles, and a solvent content is 10 mass % or less.
Hirofumi TSUNEMATSU, Takeshi CHONAN, Mika OKADA, Hideaki FUKUYAMA
Filed: 9 Jul 20
Utility
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28 Jul 22
A positive-electrode active material precursor for lithium-ion secondary battery includes: a metal complex hydroxide particle, that includes nickel (Ni), manganese (Mn), zirconium (Zr), and an additive element M (M).
Haruki KANEDA, Yuki KOSHIKA, Takaaki ANDO
Filed: 28 May 20
Utility
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21 Jul 22
The present invention provides an anti-counterfeit ink composition including organic-inorganic hybrid infrared absorbing particles, and either a dispersant or a surfactant, or both, wherein the organic-inorganic hybrid infrared absorbing particles include infrared absorbing particles and a coating resin that covers at least a part of a surface of the infrared absorbing particles.
Hirofumi TSUNEMATSU, Takeshi CHONAN
Filed: 25 May 20
Utility
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9 Jun 22
A positive electrode active material for a lithium ion secondary battery, in which a lithium-nickel-manganese composite oxide has a hexagonal layered structure, a mole number ratio of metal elements is represented as Li:Ni:Mn:M:Ti=a:(1−x−y−z):x:y:z, provided that 0.97≤a≤1.25, 0.05≤x≤0.15, 0≤y≤0.15, and 0.01≤z≤0.05, a ratio of a total amount of peak intensities of most intense lines of a titanium compound to a (003) diffraction peak intensity in XRD measurement is 0.2 or less, and a volume resistivity as determined by powder compact resistivity measurement compressed to 4.0 g/cm3 is 1.0×102 Ω·cm or more and 1.0×104 Ω·cm or less.
Yuki Koshika, Haruki Kaneda
Filed: 21 Feb 20
Utility
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9 Jun 22
A positive electrode active material for a lithium ion secondary battery, in which a lithium-nickel-manganese composite oxide has a hexagonal layered structure, a mole number ratio of metal elements is represented as Li:Ni:Mn:M:Ti=a:(1-x-y-z):x:y:z, provided that 0.97≤a≤1.25, 0.05≤x≤0.15, 0≤y≤0.15, and 0.01≤z≤0.05, a ratio of a total amount of peak intensities of most intense lines of a titanium compound to a (003) diffraction peak intensity in XRD measurement is 0.2 or less, a crystallite diameter at (003) plane is 160 nm to 300 nm, and an amount of lithium to be eluted in water when the positive electrode active material is immersed in water is 0.07% by mass or less.
Yuki Koshika, Haruki Kaneda
Filed: 21 Feb 20
Utility
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5 May 22
A method of manufacturing a positive electrode active material for a lithium ion secondary battery includes a mixing step of mixing a lithium-nickel composite oxide which is a starting material with a tungsten compound powder without lithium, while being heated, to prepare a tungsten mixture, and a heat treatment step of heat-treating the tungsten mixture.
Jun SUZUKI
Filed: 18 Feb 20
Utility
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5 May 22
A positive electrode active material for a lithium-ion secondary battery contains a lithium-metal composite oxide.
Takahiro TOMA, Takahiro OGAWA, Yoshiyuki MATSUURA, Kazuomi RYOSHI
Filed: 26 Feb 20
Utility
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28 Apr 22
A nickel manganese cobalt composite hydroxide, which is a precursor of a positive electrode active material and is composed of secondary particles to which primary particles containing a nickel, manganese, and cobalt are aggregated, or composed of the primary and secondary particles, wherein a sodium content contained in the nickel manganese cobalt composite hydroxide is less than 0.0005% by mass, and a void ratio of particles is more than 50% to 80%.
Hiroko OSHITA, Kazuomi RYOSHI
Filed: 26 Dec 19
Utility
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28 Apr 22
A positive electrode active material for a lithium ion secondary battery contains lithium composite oxide particles, the lithium composite oxide particles including lithium (Li), nickel (Ni), manganese (Mn), zirconium (Zr), and an additive element M (M) in an amount of substance ratio of Li:Ni:Mn:Zr:M=a:b:c:d:e, wherein 0.95≤a≤1.20, 0.10≤b<0.70, 0.01≤c≤0.50, 0.0003≤d≤0.02, and 0.01≤e≤0.50, and the additive element M is one or more elements selected from Co, W, Mo, V, Mg, Ca, Al, Ti, and Ta, wherein, a half-value width of a peak of (003) plane calculated from an X-ray diffraction pattern in the lithium composite oxide is 0.055° or more and 0.065° or less.
Haruki KANEDA, Takuma NAKAMURA
Filed: 19 Feb 20
Utility
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28 Apr 22
A positive electrode active material for a lithium ion secondary battery containing lithium composite oxide particles, the lithium composite oxide particles including lithium (Li), nickel (Ni), manganese (Mn), zirconium (Zr), and an additive element M (M) in an amount of substance ratio of Li:Ni:Mn:Zr:M=a:b:c:d:e, wherein 0.95≤a≤1.20, 0.70≤b≤0.98, 0.01≤c≤0.20, 0.0003≤d≤0.01, and 0.01≤e≤0.20, and the additive element M is one or more elements selected from Co, W, Mo, V, Mg, Ca, Al, Ti, and Ta, wherein, a unit lattice volume V (Å3) determined from lattice constants a and c that are calculated from an X-ray diffraction pattern in the lithium composite oxide is 117.5 Å3 or more and 118.0 Å3 or less, and a ratio I(003)/I(104) of a peak strength I(003) of a (003) plane to a peak strength In(104) of a (104) plane is 1.70 or more.
Haruki KANEDA, Yuki KOSHIKA
Filed: 19 Feb 20
Utility
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28 Apr 22
A positive electrode active material for a lithium ion secondary battery contains a lithium metal composite oxide.
Takahiro TOMA, Takahiro OGAWA, Yoshiyuki MATSUURA, Kazuomi RYOSHI
Filed: 26 Feb 20
Utility
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21 Apr 22
A nickel manganese cobalt composite hydroxide, which is a precursor of a positive electrode active material, and which is composed of secondary particles to which primary particles containing a nickel, a manganese, and a cobalt are aggregated, or composed of the primary particles and the secondary particles, wherein a sodium content contained in the nickel manganese cobalt composite hydroxide is less than 0.0005% by mass.
Hiroko OSHITA, Kazuomi RYOSHI
Filed: 26 Dec 19
Utility
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21 Apr 22
A method of manufacturing a positive electrode active material for a lithium-ion secondary battery includes a water-washing step of washing a lithium-nickel composite oxide containing Li, Ni, and an element M with water, and conducting a filtration to form a washed-cake, a mixing step of mixing, while heating, the washed-cake and a tungsten compound without lithium while heating to obtain a tungsten mixture, and a heat treatment step of heat-treating the tungsten mixture, wherein a water content of the washed-cake is 3.0% by mass or more and 10.0% by mass or less, a ratio of a number of tungsten atoms contained in the tungsten mixture to a total number of nickel and the element M atoms contained in the lithium-nickel composite oxide is 0.05 at. % or more and 3.00 at. % or less, and a temperature of the mixing step is 30° C. or higher and 70° C. or lower.
Shuhei ODA
Filed: 18 Feb 20
Utility
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14 Apr 22
The cathode active material is 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
Filed: 3 Jul 19
Utility
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31 Mar 22
The present invention provides a method of manufacturing a positive electrode active material for a lithium ion secondary battery.
Shuhei ODA
Filed: 18 Feb 20
Utility
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31 Mar 22
A nickel manganese cobalt composite hydroxide, which is a precursor of positive electrode active material, and composed of secondary particles wherein primary particles containing nickel, manganese, and cobalt are aggregated, or composed of primary and secondary particles, wherein sodium content contained in nickel manganese cobalt composite hydroxide is less than 0.0005% by mass, and void ratio of particles of nickel manganese cobalt composite hydroxide is 20% to 50%.
Hiroko OSHITA, Kazuomi RYOSHI
Filed: 26 Dec 19
Utility
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24 Mar 22
Provided is an industrial manufacturing method for producing a cathode active material for a non-aqueous electrolyte secondary battery capable of improving output characteristics in low-temperature environment use.
Shuhei ODA, Hiroyuki TOYA, Katsuya INOUE
Filed: 1 Dec 21