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公开(公告)号：US20230416111A1
公开(公告)日：2023-12-28
申请号：US18464921
申请日：2023-09-11
Applicant: SAMSUNG SDI CO., LTD.
Inventor： Jinhwa KIM , Minhan KIM , Donggyu CHANG , Jihyun SEOG , Yuntaek OH , Jungwoo SON
CPC classification number: C01G53/42 , C01G53/006 , H01M4/525 , C01P2002/72 , C01P2002/85 , C01P2004/03 , C01P2006/12 , C01P2006/40 , C01P2004/45 , C01P2004/10 , C01P2004/04 , C01P2002/78 , H01M2004/028
Abstract: A method of preparing a positive active material involves mixing a nickel compound, a cobalt compound, and optionally a metal compound to obtain a first mixture, subjecting the first mixture to a co-precipitation reaction to obtain a first resulting product, washing with water, filtering and drying the first resulting product to prepare a transition metal hydroxide precursor, subjecting the transition metal hydroxide precursor to a primary heat treatment to prepare a transition metal composite oxide precursor, mixing the transition metal composite oxide precursor and a dehydrated lithium salt to obtain a second mixture, and performing a secondary heat treatment on the second mixture to prepare a nickel-based lithium transition metal oxide. The dehydrated lithium salt is prepared by drying a hydrated lithium salt having an average particle diameter (D50) of about 400-600 μm and then pulverizing the resultant to have a D50 of about 3-30 μm.
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公开(公告)号：US11837723B2
公开(公告)日：2023-12-05
申请号：US16795539
申请日：2020-02-19
Applicant: NICHIA CORPORATION
Inventor： Kumi Yoshihara , Kosuke Shimokita , Kiyoto Ikebata , Takashi Sugimoto
IPC: H01M4/525 , H01M4/36 , H01M4/505 , H01M10/0525 , H01M4/131 , H01M4/1391 , H01M4/02 , C01G53/00
CPC classification number: H01M4/525 , C01G53/50 , H01M4/131 , H01M4/1391 , H01M4/366 , H01M4/505 , H01M10/0525 , C01P2002/52 , C01P2002/54 , C01P2004/03 , C01P2004/45 , C01P2004/51 , C01P2004/61 , C01P2004/62 , C01P2006/40 , H01M2004/028 , Y02E60/10
Abstract: Provided is a positive-electrode active material for a nonaqueous electrolyte secondary battery, including a lithium transition metal composite oxide particle having a layered structure and containing nickel, and an oxide containing lithium and aluminum and an oxide containing lithium and boron adhering to a surface of the lithium transition metal composite oxide particle. The lithium transition metal composite oxide particle includes a secondary particle formed by aggregation of primary particles containing a solid solution of aluminum in a surface layer. The lithium transition metal composite oxide particles have a composition with a difference of more than 0.22 mol % and less than 0.6 mol % between a ratio of the number of moles of aluminum in the solid solution in the surface layer of the primary particles relative to a total number of moles of metal other than lithium and a ratio of the number of moles of aluminum present in a region other than the surface layer of the primary particles relative to the total number of moles of metal other than lithium.
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公开(公告)号：US20180265358A1
公开(公告)日：2018-09-20
申请号：US15763627
申请日：2016-10-04
Applicant: Nippon Chemical Industrial Co., Ltd.
Inventor： Junya Fukazawa
CPC classification number: C01B25/45 , B01J2/06 , C01B25/372 , C01P2002/74 , C01P2004/32 , C01P2004/45 , C01P2004/61 , C01P2006/11 , C01P2006/12 , C01P2006/32 , C04B14/366 , C04B35/00 , C04B2103/52 , C09C1/00
Abstract: It is intended to provide an industrially advantageous method for obtaining zirconium tungsten phosphate that is useful as a negative thermal expansion material and exhibits a single phase in X-ray diffraction. The method for producing zirconium tungsten phosphate according to the present invention comprises using a mixture of a tungsten compound and an amorphous compound containing phosphorus and zirconium as a reaction precursor and calcining the reaction precursor. Preferably, the reaction precursor has an infrared absorption peak at least at 950 to 1150 cm−1, and the maximum value of the infrared absorption peak in this range appears at 1030 (±20) cm−1.
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公开(公告)号：US10077363B2
公开(公告)日：2018-09-18
申请号：US15470840
申请日：2017-03-27
Applicant: PACIFIC NANO PRODUCTS, INC.
Inventor： Vijay K Mathur
CPC classification number: C09C1/0093 , C01P2002/72 , C01P2002/74 , C01P2002/77 , C01P2004/03 , C01P2004/10 , C01P2004/45 , C01P2004/54 , C01P2004/61 , C01P2004/80 , C01P2006/10 , C01P2006/12 , C01P2006/19 , C01P2006/22 , C01P2006/62 , C01P2006/63 , C01P2006/65 , D21H19/12 , D21H19/385 , D21H19/40 , D21H19/58 , Y10T428/252
Abstract: A nano-composite structure. A synthetic nano-composite is described having a first component including a fibrous structured amorphous silica structure, and a second component including a precipitated calcium carbonate structure developed by pressure carbonation. The nano-composite may be useful for fillers in paints and coatings. Also, the nano-composite may be useful in coatings used in the manufacture of paper products.
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公开(公告)号：US20180251376A1
公开(公告)日：2018-09-06
申请号：US15759333
申请日：2016-10-04
Applicant: Nippon Chemical Industrial Co., Ltd.
Inventor： Junya Fukazawa , Toru Hata
IPC: C01B25/45
CPC classification number: C01B25/45 , B01J2/06 , C01B25/372 , C01P2002/74 , C01P2004/32 , C01P2004/45 , C01P2004/61 , C01P2006/11 , C01P2006/12 , C01P2006/32 , C04B14/366 , C04B35/00 , C04B2103/52 , C09C1/00
Abstract: The present application provides a negative thermal expansion material having excellent dispersibility and packing properties in a positive thermal expansion material. The negative thermal expansion material of the present invention comprises spherical zirconium tungsten phosphate having a BET specific surface area of 2 m2/g or smaller. The degree of sphericity is preferably 0.90 or more and 1 or less. Also preferably, the negative thermal expansion material further contains at least Mg and/or V as a subcomponent element. Also preferably, the content of the subcomponent element is 0.1% by mass or more and 3% by mass or less. Also preferably, the average particle size is 1 μm or larger and 50 μm smaller.
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Patent Agency Ranking
公开(公告)号：US20180244533A1
公开(公告)日：2018-08-30
申请号：US15747898
申请日：2016-07-29
Applicant: Imerys USA, Inc.
Inventor： Alexandra JAKOB , Didier SY , Cedric RABOTEAU
IPC: C01F11/18 , C07C309/07 , C07C309/24 , C09D7/62 , C09D7/40
CPC classification number: C01F11/185 , C01F11/181 , C01P2004/03 , C01P2004/16 , C01P2004/17 , C01P2004/45 , C01P2004/50 , C01P2004/64 , C01P2006/12 , C07C309/07 , C07C309/24 , C08K9/04 , C08K2003/265 , C08K2201/006 , C08K2201/011 , C09C1/021 , C09C1/024 , C09D1/00 , C09D7/62 , C09D7/66 , C09D7/67 , C09D7/68 , C09D7/70
Abstract: The present invention relates to precipitated calcium carbonate particles being at least partially in the form of nanofibers or nanochain like agglomerates, wherein the particles are at least partially coated with at least one coating agent, use of such precipitated calcium carbonate particles and a process for the manufacture of such precipitated calcium carbonate particles.
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公开(公告)号：US09859557B2
公开(公告)日：2018-01-02
申请号：US13513240
申请日：2010-12-02
Applicant: Kensaku Mori , Shin Imaizumi , Rei Kokado
Inventor： Kensaku Mori , Shin Imaizumi , Rei Kokado
CPC classification number: H01M4/525 , C01G53/00 , C01G53/006 , C01G53/42 , C01G53/50 , C01P2004/03 , C01P2004/32 , C01P2004/45 , C01P2004/51 , C01P2004/61 , H01M4/485 , H01M4/505 , Y10T428/2982
Abstract: Disclosed are: nickel complex hydroxide particles that have small and uniform particle diameters; and a method by which the nickel complex hydroxide particles can be produced. Specifically disclosed is a method for producing a nickel complex hydroxide by a crystallization reaction, which comprises: a nucleation step in which nucleation is carried out, while controlling an aqueous solution for nucleation containing an ammonium ion supplying material and a metal compound that contains nickel to have a pH of 12.0-13.4 at a liquid temperature of 25° C.; and a particle growth step in which nuclei are grown, while controlling an aqueous solution for particle growth containing the nuclei, which have been formed in the nucleation step, to have a pH of 10.5-12.0 at a liquid temperature of 25° C. In this connection, the pH in the particle growth step is controlled to be less than the pH in the nucleation step.
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公开(公告)号：US20170331106A1
公开(公告)日：2017-11-16
申请号：US15527426
申请日：2015-11-20
Applicant: TODA KOGYO CORP.
Inventor： Kazumichi KOGA , Hiroaki MASUKUNI , Kazutoshi MATSUMOTO
IPC: H01M4/505 , H01M10/0525 , H01M4/131 , C01G41/00 , C01G45/12
CPC classification number: H01M4/505 , C01G41/00 , C01G45/1214 , C01G45/1242 , C01P2002/32 , C01P2002/50 , C01P2002/54 , C01P2002/72 , C01P2002/76 , C01P2004/03 , C01P2004/41 , C01P2004/45 , C01P2004/61 , C01P2006/12 , H01M4/131 , H01M10/0525
Abstract: Positive electrode active material particle powder includes: lithium manganese oxide particle powder having Li and Mn as main components and a cubic spinel structure with an Fd-3m space group. The lithium manganese oxide particle powder is composed of secondary particles, which are aggregates of primary particles, an average particle diameter (D50) of the secondary particles being from 4 μm to 20 μm, and at least 80% of the primary particles exposed on surfaces of the secondary particles each have a polyhedral shape having at least one (110) plane that is adjacent to two (111) planes.
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9.发明申请公开(公告)号：US20170324088A1
公开(公告)日：2017-11-09
申请号：US15658014
申请日：2017-07-24
Applicant: Washington University
Inventor： Dror Elhassid , William Moller , Richard Axelbaum , Miklos Lengyel , Gal Atlas
IPC: H01M4/485 , B01J2/02 , H01M4/525 , H01M4/505 , H01M4/58 , C01D15/02 , C01G1/02 , C01G53/00 , H01M10/0525 , C01G45/12 , C01G51/00
CPC classification number: H01M4/485 , B01J2/02 , C01D15/02 , C01G1/02 , C01G45/1228 , C01G45/1257 , C01G51/42 , C01G51/50 , C01G51/56 , C01G53/42 , C01G53/50 , C01G53/56 , C01P2002/32 , C01P2002/52 , C01P2004/03 , C01P2004/30 , C01P2004/45 , C01P2004/61 , C01P2004/62 , C01P2004/80 , C01P2004/82 , C01P2006/11 , C01P2006/12 , C01P2006/16 , C01P2006/40 , H01M4/505 , H01M4/525 , H01M4/5825 , H01M10/0525
Abstract: A process for preparing a metal oxide-containing powder that comprises conducting spray pyrolysis that comprises aerosolizing a slurry that comprises solid-phase particles in a liquid that comprises at least one precursor compound, which comprises one or more metallic elements of at least one metal oxide, to form droplets of said slurry, and calcining the droplets to at least partially decompose the at least one precursor compound and form the metal oxide-containing powder having a non-hollow morphology.
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公开(公告)号：US20170155144A1
公开(公告)日：2017-06-01
申请号：US15322278
申请日：2015-04-24
Applicant: SUMITOMO METAL MINING CO., LTD.
Inventor： Mitsuru YAMAUCHI , Kazuomi RYOSHI
CPC classification number: H01M4/525 , C01G51/00 , C01G51/50 , C01G53/00 , C01G53/40 , C01G53/50 , C01P2002/50 , C01P2004/03 , C01P2004/20 , C01P2004/45 , C01P2004/51 , C01P2004/54 , C01P2004/61 , C01P2006/40 , H01M4/0471 , H01M4/131 , H01M4/1391 , H01M4/364 , H01M4/505 , H01M10/052 , H01M10/0525 , H01M2004/021 , H01M2004/028
Abstract: A positive electrode active material for non-aqueous electrolyte secondary batteries that can achieve a high output characteristic and a high battery capacity when used in a positive electrode of a battery and that can achieve a high electrode density, and a non-aqueous electrolyte secondary battery that uses such a positive electrode active material and can achieve a high capacity and a high output. A lithium-manganese-cobalt composite oxide includes plate-shaped secondary particles each obtained by aggregation of a plurality of plate-shaped primary particles caused by overlapping of plate surfaces of the plate-shaped primary particles, wherein a shape of the primary particles is any one of a spherical, elliptical, oval, or a planar projected shape of a block-shaped object, and the secondary particles have an aspect ratio of 3 to 20 and a volume-average particle size (Mv) of 4 μm to 20 μm as measured by a laser diffraction scattering process.
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