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公开(公告)号：US20200343547A1
公开(公告)日：2020-10-29
申请号：US16642912
申请日：2018-07-31
发明人： Jun Yokoyama , Kazuomi Ryoshi
IPC分类号： H01M4/525 , H01M10/0525 , H01M4/36 , H01M4/62 , C01G53/00
摘要： Provided is a positive electrode active material for non-aqueous electrolyte secondary batteries for making high capacity and high output compatible, non-aqueous electrolyte secondary batteries, having the positive electrode active material adopted thereto, and a production method for a positive electrode active material in which the positive electrode active material can be easily produced in an industrial scale. A positive electrode active material for non-aqueous electrolyte secondary batteries, contains: primary particles of a lithium nickel composite oxide represented by at least General Formula: LizNi1-x-yCoxMyO2 (0.95≤z≤1.03, 0
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公开(公告)号：US11831011B2
公开(公告)日：2023-11-28
申请号：US17480496
申请日：2021-09-21
发明人： Tsutomu Nozoe , Toyomasa Nakano
IPC分类号： H01M4/36 , H01M4/62 , H01M10/0525 , H01M4/02
CPC分类号： H01M4/366 , H01M4/625 , H01M10/0525 , H01M2004/021 , H01M2004/028
摘要： To provide a positive electrode material for a lithium ion battery from which a lithium ion battery capable of enhancing output characteristics at low temperatures can be obtained, a positive electrode for a lithium ion battery in which the positive electrode material for a lithium ion battery is used, and a lithium ion battery including the positive electrode for a lithium ion battery. A positive electrode material for a lithium ion battery consisting of primary particles coated with a carbonaceous film or an agglomerate of the primary particles, in which a powder resistance Y is 500 Ω·cm or more and 50000 Ω·cm or less, a mass X of the carbonaceous film per unit specific surface area is 0.7 mg/m2 or more and 1.1 mg/m2 or less, and Formula (1) below is satisfied.
Y≥4.91×106×e−9.021X (1)-
公开(公告)号：US20240318281A1
公开(公告)日：2024-09-26
申请号：US18575894
申请日：2022-03-25
发明人： Yu Yamashita , Toshihiko Nagakura , Tomoya Hagio
摘要： Provided is a method by which it is possible to collect valuable metals from raw material including waste lithium-ion batteries or the like. The present invention is a method which includes: a step for preparing raw material including at least Li, Al, and the valuable metals; a step for obtaining a reduction that includes slag and an alloy containing the valuable metals by subjecting the raw material to a reduction melting treatment; and a slag separation step for collecting the alloy by separating out the slag from the reduction, wherein, in a step for adding a flux containing calcium (Ca) to the raw material and performing reduction and melting thereof, the reduction melting treatment is performed such that the liquidus line temperature of ternary Al2O3—Li2O—CaO slag in a phase diagram is greater than the liquidus line temperature of a ternary Cu—Ni—Co alloy in a phase diagram.
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公开(公告)号：US20240269637A1
公开(公告)日：2024-08-15
申请号：US18682231
申请日：2022-08-09
发明人： Atsushi IGARI , Takeshi CHONAN , Seigou KAWAGUCHI , Takumi KUDO
IPC分类号： B01J13/14
CPC分类号： B01J13/14
摘要： Organic-inorganic hybrid infrared absorbing particles including: a resin capsule; and an infrared absorbing particle placed in the resin capsule, wherein a content of the infrared absorbing particle is 15 mass % or more and 55 mass % or less.
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公开(公告)号：US20240266526A1
公开(公告)日：2024-08-08
申请号：US18612166
申请日：2024-03-21
发明人： Hiroko Oshita , Kazuomi Ryoshi , Taira Aida , Koji Yamaji , Jiro Okada
CPC分类号： H01M4/505 , H01M4/0471 , H01M4/362 , H01M4/366 , H01M4/525 , H01M10/0525 , H01M2004/021 , H01M2004/028
摘要： The present invention provides a composite oxide that can achieve a high low-temperature output characteristic, a method for manufacturing the same, and a positive electrode active material in which the generation of soluble lithium is suppressed and a problem of gelation is not caused during the paste preparation. A positive electrode active material for non-aqueous electrolyte secondary batteries, including a lithium-metal composite oxide powder including a secondary particle configured by aggregating primary particles containing lithium, nickel, manganese, and cobalt, or a lithium-metal composite oxide powder including both the primary particles and the secondary particle, wherein the secondary particle has a hollow structure inside as a main inside structure, the slurry pH is 11.5 or less, the soluble lithium content rate is 0.5 [% by mass] or less, the specific surface area is 2.0 to 3.0 [m2/g], and the porosity is 20 to 50 [%].
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公开(公告)号：US12024466B2
公开(公告)日：2024-07-02
申请号：US17922096
申请日：2021-04-30
发明人： Masaki Ando
CPC分类号： C03C4/14 , C03C8/10 , C03C8/16 , H01C7/003 , C03C2204/00 , C03C2205/00
摘要： To provide a thick film resistor paste for a resistor having a smaller resistance change rate and excellent surge resistance, a thick film resistor using the thick film resistor paste, and an electronic component provided with the thick film resistor. A thick film resistor paste comprises an organic vehicle and a conductive substance-containing glass powder comprising ruthenium oxide and lead ruthenate, the conductive substance-containing glass powder comprises 10 to 70 mass % of conductive substances, a glass composition of the conductive substance-containing glass powder comprises 3 to 30 mass % of silicon oxide. 30 to 90 mass % of lead oxide, 5 to 50 mass % of boron oxide relative to 100 mass % of glass components, and, a combined amount of silicon oxide, lead oxide and boron oxide by mass % is 50 mass % or more relative to 100 mass % of the glass components.
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公开(公告)号：US20240215455A1
公开(公告)日：2024-06-27
申请号：US18556133
申请日：2022-04-19
发明人： Kazuhiko Okubo , Yuki Sendan , Kiyoshi Izumi
CPC分类号： H10N35/85 , C22C38/002 , H10N35/01 , H10N35/101
摘要： The magnetostrictive member contains an iron-based alloy crystal having magnetostrictive characteristics and is a plate-like body having front and back faces. In one of the front and back faces, a thickness and a surface roughness Ra of the magnetostrictive member satisfy Expression (1): log Ra≥0.48t−0.62. In Expression (1), log indicates a common logarithm, Ra the surface roughness (μm), and t the thickness of the magnetostrictive member (mm).
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公开(公告)号：US20240204275A1
公开(公告)日：2024-06-20
申请号：US18288876
申请日：2022-03-14
发明人： Tomoya Hagio , Yu Yamashita
摘要： Provided is a method for producing valuable metal from raw materials including, for example, waste lithium ion batteries by a pyrometallurgical method, said method making it possible to efficiently separate manganese included in the raw materials from metal into slag without lowering the valuable metal recovery rate. The present invention is a method for producing valuable metal from raw materials comprising: a reduction melting step for subjecting the raw materials to a reduction melting process so as to obtain a reduction product containing slag and molten metal that contains valuable metal; a slag separation step for recovering the molten metal from the reduction product; and an oxidation purification step for adding silicon dioxide (SiO2) as flux to the recovered molten metal and performing an oxidation melting process. In the oxidation purification step, SiO2 is added as the flux such that the SiO2/MnO weight ratio is 0.4-1.0 in the slag.
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公开(公告)号：US12009506B2
公开(公告)日：2024-06-11
申请号：US16930746
申请日：2020-07-16
IPC分类号： H01M4/36 , H01M4/02 , H01M4/131 , H01M4/485 , H01M10/0525
CPC分类号： H01M4/366 , H01M4/131 , H01M4/485 , H01M10/0525 , H01M2004/027
摘要： The present disclosure can bring excellent output characteristics to a nonaqueous electrolyte secondary battery that uses a cathode active material containing tungsten while desired durability is secured. The battery of the present disclosure includes a cathode, an anode, and a nonaqueous electrolyte. The cathode includes a cathode active material layer that contains a granular cathode active material. The cathode active material includes a core part that contains a lithium-transition metal composite oxide of a layered structure; a tungsten-concentrated layer that is formed over a surface of the core part and has a higher tungsten concentration than in the core part; and a lithium-tungsten compound particle that adheres to at least part of a surface of the tungsten-concentrated layer and contains tungsten and lithium. In the battery of the present disclosure, the tungsten-concentrated layer has an amorphous structure. This can bring excellent output characteristics while desired durability is secured.
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公开(公告)号：US11996556B2
公开(公告)日：2024-05-28
申请号：US16641810
申请日：2018-08-23
IPC分类号： H01M4/525 , H01M4/02 , H01M4/04 , H01M4/131 , H01M4/1391 , H01M4/36 , H01M4/505 , H01M10/0525
CPC分类号： H01M4/525 , H01M4/0471 , H01M4/131 , H01M4/1391 , H01M4/364 , H01M4/366 , H01M4/505 , H01M10/0525 , H01M2004/021 , H01M2004/028
摘要： An object is to provide a positive electrode active material for a non-aqueous electrolyte secondary battery that can suppress gelation of a positive electrode mixture paste and can improve stability when a non-aqueous electrolyte secondary battery is manufactured. A positive electrode active material for a non-aqueous electrolyte secondary battery has a hexagonal layered crystal structure, is represented by general formula (1): Li1+sNixCoyMnzMwBtO2+α, and includes a lithium-metal composite oxide containing a secondary particle with a plurality of aggregated primary particles and a lithium-boron compound present on at least a part of surfaces of the primary particles. The amount of lithium hydroxide that elutes when the positive electrode active material is dispersed in water, measured by a neutralization titration method, is 0.01% by mass or more and 0.5% by mass or less with respect to the entire positive electrode active material.
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