428 patents
Page 8 of 22
Utility
Method of Manufacturing Positive Electrode Active Material for Lithium Ion Secondary Battery
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
Chemical reaction device and particle production method using chemical reaction device
19 Apr 22
A chemical reaction device that supplies a raw material liquid into a solution and causes particles to precipitate in the solution is provided.
Shuhei Nakakura, Kazuhiko Tsuchioka, Koichiro Maki, Motoaki Saruwatari, Kazuomi Ryoshi, Masafumi Yoshida
Filed: 12 Jun 17
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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5 Apr 22
Provided are a positive electrode active material with which a nonaqueous electrolyte secondary battery having a high energy density can be obtained, a nickel-manganese composite hydroxide suitable as a precursor of the positive electrode active material, and production methods capable of easily producing these in an industrial scale.
Haruki Kaneda, Yuki Koshika, Takaaki Ando
Filed: 28 Jul 17
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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29 Mar 22
A method for producing a positive electrode active material for nonaqueous electrolyte secondary batteries is disclosed which includes cleaning a powder formed of a lithium-nickel composite oxide represented by a general formula LizNi1-x-yCoxMyO2 where 0≤x≤0.35; 0≤y≤0.10; 0.95≤z≤1.10; and M is at least one element selected from Mn, V, Mg, Mo, Nb, Ti, and Al with an aqueous lithium carbonate solution and drying the cleaned powder.
Hiroko Oshita, Kazuomi Ryoshi
Filed: 19 Nov 20
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
Utility
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22 Mar 22
Transition metal composite hydroxide particles as a precursor to a cathode active material for use in a non-aqueous electrolyte rechargeable battery, where the transition metal composite hydroxide has secondary particles formed by an aggregation of plate-shaped primary particles and fine primary particles, are described.
Yasutaka Kamata, Taira Aida, Hiroyuki Toya
Filed: 13 Aug 19
Utility
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17 Mar 22
Provided are surface-treated infrared-absorbing fine particles that are infrared-absorbing fine particles each having a crystallite size greater than or equal to 30 nm and a surface that is coated with a coating layer that contains at least one selected from a hydrolysis product of a metal chelate compound, a polymer of the hydrolysis product of the metal chelate compound, a hydrolysis product of a metal cyclic oligomer compound, and a polymer of the hydrolysis product of the metal cyclic oligomer compound.
Hirofumi TSUNEMATSU, Takeshi CHONAN
Filed: 12 Dec 19
Utility
ln8vmtpjrvrqt1ro1hlqx17lij3qm976nbofobagvms7kbix8npi
10 Mar 22
A froth bubble moving speed measuring device includes a light source configured to illuminate an upper surface of a flotation tank, an imaging unit configured to capture at least a part of the upper surface of the flotation tank, and an arithmetic processing unit configured to calculate a moving speed of a froth bubble by calculating a moving distance of the froth bubble based on the image processed by the image processing unit.
Jun SUGIHARA
Filed: 16 Nov 21
Utility
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10 Mar 22
A positive electrode active material precursor for a nonaqueous electrolyte secondary battery is provided that includes a nickel-cobalt-manganese carbonate composite represented by general formula NixCoyMnzMtCO3 (where x+y+z+t=1, 0.05≤x≤0.3, 0.1≤y≤0.4, 0.55≤z≤0.8, 0≤t≤0.1, and M denotes at least one additional element selected from a group consisting of Mg, Ca, Al, Ti, V, Cr, Zr, Nb, Mo, and W) and a hydrogen-containing functional group.
Satoshi MATSUMOTO, Kazuomi RYOSHI, Kikoo UEKUSA
Filed: 17 Nov 21
Utility
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1 Mar 22
Disclosed herein is a roll-to-roll long base material surface processing device capable of performing surface processing on a long base material with little occurrence of wrinkling in the long base material at low costs.
Hideharu Okami
Filed: 23 Aug 17
Utility
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24 Feb 22
Provided is a production method and a production apparatus that increase a throughput of nickel sulfate per equipment.
Hitoshi ISHIDA
Filed: 23 Oct 19
Utility
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17 Feb 22
A positive electrode active material containing a lithium metal composite oxide composed of secondary particles formed by aggregated primary particles, comprising lithium, at least one metal element and at least one additive element, the lithium metal composite oxide having a crystal structure of layered rock salt structure and the metal element including nickel in a content of 60 to 90 atomic percent and the additive element including boron in content of more than 1.0 atomic percent and 6.0 atomic percent or less, the nickel content and the boron content each with respect to the sum of the metal element and the additive element, the porosity of the secondary particles being 8% or more and 20% or less; a non-aqueous electrolyte secondary battery containing the positive electrode active material; and a process for producing the positive electrode active material.
Jun SUZUKI, Koji YAMAJI
Filed: 1 Nov 21
Utility
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17 Feb 22
A method of producing organic-inorganic hybrid infrared absorbing particles includes a dispersion liquid preparing step of preparing a dispersion liquid containing infrared absorbing particles, a dispersant, and a dispersion medium; a dispersion medium removing step of removing the dispersion medium from the dispersion liquid by an evaporation; a raw material mixture liquid preparing step of preparing a raw material mixture liquid containing the infrared absorbing particles collected after the dispersion medium removing step, a coating resin material, an organic solvent, an emulsifying agent, water, and a polymerization initiator; a stirring step of stirring the raw material mixture liquid while cooling; and a polymerizing step of polymerizing the coating resin material after deoxygenation treatment which reduces an amount of oxygen in the raw material mixture liquid.
Hirofumi TSUNEMATSU, Takeshi CHONAN, Atsushi TOFUKU, Seigou KAWAGUCHI, Naohiro KOBAYASHI
Filed: 16 Dec 19
Utility
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15 Feb 22
A near infrared absorbing-fine-particle dispersion liquid having absorption in a near infrared region, having clear contrast, and being applicable to offset printing; a method for producing the same; an anti-counterfeit ink composition using the near infrared absorbing-fine-particle dispersion liquid; and anti-counterfeit printed matter using the near infrared absorbing-fine-particles.
Mika Okada, Hideaki Fukuyama
Filed: 24 Oct 19
Utility
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15 Feb 22
A method for manufacturing a positive electrode active material includes: (a) preparing a fired powder of a lithium nickel composite oxide by mixing a nickel compound selected from a nickel hydroxide including nickel, and an element selected from other transition metal elements, elements of the second group and elements of the thirteenth group of the Periodic System, a nickel oxyhydroxide thereof, and a nickel oxide obtained by roasting thereof, and a lithium compound, and firing the mixture at a maximum temperature of 650° C. to 850° C. under oxygen atmosphere; and (b) preparing a lithium nickel composite oxide powder by mixing the fired powder with water to obtain a slurry, washing the fired powder with water at a temperature of 10° C. to 40° C., while controlling an electrical conductivity of a liquid portion of the slurry to 30 mS/cm to 60 mS/cm, then filtering and drying the resultant fired powder.
Tomoko Iwanaga, Hideo Sasaoka, Satoshi Matsumoto, Yutaka Kawatate, Shinji Arimoto
Filed: 7 Feb 20
Utility
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10 Feb 22
Provided are a positive electrode active material with which a nonaqueous electrolyte secondary battery having a high energy density can be obtained, a nickel-manganese composite hydroxide suitable as a precursor of the positive electrode active material, and production methods capable of easily producing these in an industrial scale.
Haruki Kaneda, Yuki Koshika, Takaaki Ando
Filed: 26 Oct 21
Utility
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10 Feb 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