公开(公告)号：US11552292B2

公开(公告)日：2023-01-10

申请号：US16805990

申请日：2020-03-02

Applicant: TODA KOGYO CORP.

Inventor： Hiroyasu Watanabe ,  Xiang Sun

IPC: H01M4/04 ,  H01M4/525 ,  C23C16/455 ,  H01M4/62 ,  H01M4/1391 ,  C23C16/40 ,  C23C16/56 ,  H01M4/36 ,  H01M4/48 ,  H01M10/0525 ,  H01M10/052 ,  H01M4/02

Abstract: The present invention provides lithium nickelate-based positive electrode active substance particles having a high energy density which are excellent in charge/discharge cycle characteristics when highly charged, and hardly suffer from generation of gases upon storage under high-temperature conditions, and a process for producing the positive electrode active substance particles, as well as a non-aqueous electrolyte secondary battery. The present invention relates to positive electrode active substance particles each comprising a core particle X comprising a lithium nickelate composite oxide having a layer structure which is represented by the formula: Li1+aNi1−b−cCobMcO2 wherein M is at least one element selected from the group consisting of Mn, Al, B, Mg, Ti, Sn, Zn and Zr; a is a number of −0.1 to 0.2 (−0.1•a•0.2); b is a number of 0.05 to 0.5 (0.05•b•0.5); and c is a number of 0.01 to 0.4 (0.01•c•0.4); a coating compound Y comprising at least one element selected from the group consisting of Al, Mg, Zr, Ti and Si; and a coating compound Z comprising an Li element, in which a content of lithium hydroxide LiOH in the positive electrode active substance particles is not more than 0.40% by weight, a content of lithium carbonate Li2CO3 in the positive electrode active substance particles is not more than 0.65% by weight, and a weight ratio of the content of lithium carbonate to the content of lithium hydroxide is not less than 1.

公开(公告)号：US11127940B2

公开(公告)日：2021-09-21

申请号：US16712161

申请日：2019-12-12

Applicant: TODA KOGYO CORP.

Inventor： Kazumichi Koga ,  Hiroaki Masukuni ,  Kazutoshi Matsumoto

IPC: H01M4/131 ,  H01M4/04 ,  H01M4/1391 ,  H01M4/505 ,  C01G45/12 ,  H01M10/0525 ,  H01M4/02

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 in which each (111) plane thereof is adjacent to at least one (100) plane thereof.

公开(公告)号：US11120932B2

公开(公告)日：2021-09-14

申请号：US14205894

申请日：2014-03-12

Applicant: TODA KOGYO CORP.

Inventor： Nobuhiro Katayama ,  Hirofumi Kawasaki ,  Koichiro Morimoto

IPC: H01F1/057 ,  C21D6/00 ,  B22F9/04 ,  C22C38/06 ,  C22C33/02 ,  C22C38/00 ,  C22C38/10 ,  C22C38/14

Abstract: An object of the present invention is to enhance a coercive force of magnetic particles by promoting formation of a continuous R-rich grain boundary phase in a crystal grain boundary of a magnetic phase of the particles, and to thereby obtain R-T-B-based rare earth magnet particles further having a high residual magnetic flux density. The present invention relates to production of R-T-B-based rare earth magnet particles capable of exhibiting a high coercive force even when a content of Al therein is reduced, and a high residual magnetic flux density, in which formation of an R-rich grain boundary phase therein can be promoted by heat-treating Al-containing R-T-B-based rare earth magnet particles obtained by HDDR treatment in vacuum or in an Ar atmosphere at a temperature of not lower than 670° C. and not higher than 820° C. for a period of not less than 30 min and not more than 300 min.

公开(公告)号：US20190393605A1

公开(公告)日：2019-12-26

申请号：US16481900

申请日：2018-01-29

Applicant: TODA KOGYO CORP.

Inventor： Satoshi NOMURA ,  Jun KOUJIMA ,  Yasushi NISHIO ,  Manato NAKATSUKASA ,  Yasuhiko FUJII

IPC: H01Q7/06 ,  H01Q1/22 ,  G06K19/077

Abstract: The present invention relates to an electronic component, and also relates to an antenna for information communication using a magnetic field component, which is capable of satisfying both of downsizing and improvement in communication sensitivity. The electronic component of the present invention comprises a ferrite core and a coil, in which a ferrite constituting the ferrite core has a spinel structure and comprises Fe, Ni, Zn, Cu and Co as constitutional metal elements, and when contents of the respective constitutional metal elements in the ferrite are calculated in terms of Fe2O3, NiO, ZnO, CuO and CoO, contents of Fe2O3, NiO, ZnO, CuO and CoO in the ferrite are 46 to 50 mol %, 20 to 27 mol %, 15 to 22 mol %, 9 to 11 mol % and 0.01 to 1.0 mol %, respectively, based on a total content of Fe2O3, NiO, ZnO, CuO and CoO.

公开(公告)号：US10128029B2

公开(公告)日：2018-11-13

申请号：US15032711

申请日：2014-10-30

Applicant: TODA KOGYO CORP.

Inventor： Yoji Okano ,  Tomohiro Dote ,  Makoto Sadai ,  Shingo Honda ,  Katsumi Nakai ,  Yasuhiko Fujii

IPC: H01F1/10 ,  H01F1/34 ,  C04B35/26 ,  B32B3/30 ,  B32B18/00 ,  C04B35/626 ,  C04B35/638 ,  H01Q1/24 ,  H01Q1/38

Abstract: An object or technical task of the present invention is to provide a ferrite sintered sheet having a dense ferrite microfine structure which has a large μ′ value, a small μ″ value, and a small temperature-dependent change of the μ′ value thereof. The present invention relates to a ferrite ceramics having a composition comprising 47.5 to 49.8 mol % of Fe2O3, 13.5 to 19.5 mol % of NiO, 21 to 27 mol % of ZnO, 7.5 to 12.5 mol % of CuO and 0.2 to 0.8 mol % of CoO, all of the molar amounts being calculated in terms of the respective oxides, the ferrite ceramics further comprising 0.2 to 1.4% by weight of SnO2 and 0.005 to 0.03% by weight of S and having a density of 5.05 to 5.30 g/cm3; and a ferrite sintered sheet comprising the ferrite sintered plate on a surface of which a groove or grooves are formed, and an adhesive layer and/or a protective layer formed on the ferrite sintered plate.

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.

公开(公告)号：US09698420B2

公开(公告)日：2017-07-04

申请号：US14436244

申请日：2013-10-15

Applicant: TODA KOGYO CORP.

Inventor： Kazutoshi Ishizaki ,  Kazuhiko Kikuya ,  Takahiko Sugihara ,  Teruaki Santoki ,  Takamitsu Harada ,  Masaki Nishimura ,  Yuji Mishima ,  Hideaki Sadamura

IPC: H01M4/52 ,  H01M4/525 ,  C01G53/00 ,  H01M4/485 ,  H01M4/505 ,  H01M10/0525 ,  H01M10/052

CPC classification number: H01M4/525 ,  C01G53/006 ,  C01G53/42 ,  C01G53/50 ,  C01P2002/50 ,  C01P2004/03 ,  C01P2004/32 ,  C01P2004/61 ,  C01P2006/12 ,  H01M4/485 ,  H01M4/505 ,  H01M10/052 ,  H01M10/0525 ,  Y02P70/54

Abstract: The present invention relates to Li-Ni composite oxide particles that exhibit a high initial discharge capacity and are excellent in thermal stability when used as a positive electrode active substance for non-aqueous electrolyte secondary batteries, and a process for producing the Li-Nicomposite oxide particles. The Li-Ni composite oxide particles of the present invention have a composition of LixNi1−y−a−bCoyM1aM2bO2 wherein x, y, a and b represent 1.00≦x≦1.10; 0

公开(公告)号：US09564634B2

公开(公告)日：2017-02-07

申请号：US14388931

申请日：2013-03-14

Applicant: TODA KOGYO CORP.

Inventor： Manabu Yamamoto ,  Daisuke Nishikawa ,  Taisei Inoue ,  Osamu Sasaki ,  Hideaki Sadamura

IPC: H01M4/88 ,  H01M4/505 ,  H01M4/525 ,  C01G51/00 ,  C01G53/00 ,  H01M10/052 ,  H01M4/02

CPC classification number: H01M4/505 ,  C01G51/50 ,  C01G51/56 ,  C01G53/006 ,  C01G53/50 ,  C01G53/56 ,  C01P2002/50 ,  C01P2002/52 ,  C01P2002/76 ,  C01P2004/03 ,  C01P2004/50 ,  C01P2004/61 ,  C01P2006/11 ,  C01P2006/12 ,  C01P2006/80 ,  H01M4/525 ,  H01M10/052 ,  H01M2004/021 ,  H01M2004/028 ,  Y02E60/122 ,  Y02P70/54

Abstract: The present invention relates to positive electrode active substance particles comprising a compound having at least a crystal system belonging to a space group of R-3m and a crystal system belonging to a space group of C2/m, the positive electrode active substance particles having a specific intensity ratio; a content of Mn in the positive electrode active substance particles being controlled such that a molar ratio of Mn/(Ni+Co+Mn) therein is not less than 0.55; and the positive electrode active substance particles comprising an element A (that is at least one element selected from the group consisting of Si, Zr and Y) in an amount of 0.03 to 5% by weight and having a tap density of 0.8 to 2.4 g/cc and a compressed density of 2.0 to 3.1 g/cc. The positive electrode active substance particles can be produced by calcining a mixture of precursor particles comprising the element A, Mn, Ni and/or Co, and a lithium compound.

Abstract translation: 本发明涉及包含至少具有属于R-3m的空间群的晶体系的化合物和属于C2 / m的空间群的晶体系的正极活性物质粒子，所述正极活性物质粒子具有 比强度比; 控制正极活性物质粒子中的Mn含量使得其中Mn /（Ni + Co + Mn）的摩尔比不小于0.55; 并且包含0.03〜5重量％的元素A（即选自Si，Zr和Y的至少一种元素）并且振实密度为0.8〜2.4g的正极活性物质粒子 / cc，压缩密度为2.0〜3.1g / cc。 正极活性物质颗粒可以通过煅烧包含元素A，Mn，Ni和/或Co的前体颗粒和锂化合物的混合物来制备。

公开(公告)号：US20160276079A1

公开(公告)日：2016-09-22

申请号：US15033355

申请日：2014-10-30

Applicant: TODA KOGYO CORP.

Inventor： Kazushi NISHIMOTO ,  Yoji OKANO ,  Hiromitsu SAKURAI ,  Kazumi YAMAMOTO ,  Tomohiro DOTE ,  Yasushi NISHIO ,  Yasuhiko FUJII

IPC: H01F1/37 ,  H02J7/02 ,  H02J50/10 ,  H01F38/14

CPC classification number: H01F1/37 ,  C22C2202/02 ,  H01F27/255 ,  H01F38/14 ,  H01F41/0246 ,  H02J7/025 ,  H02J50/10

Abstract: An object of the present invention is to provide a power transmission device for a non-contact power feeder system which has high power transmission efficiency and high impact resistance. The above object of the present invention can be achieved by a soft magnetic ferrite resin composition molded product comprising a filler and a binder, in which the filler comprises soft magnetic ferrite particles having an average particle diameter of 5 to 35 μm, the binder comprises at least one material selected from the group consisting of a thermoplastic resin and a soft polyolefin resin, and the soft magnetic ferrite resin composition molded product has a molding density of 3.2 to 4.7 g/cm3 and a magnetic permeability of 5 to 15, and a power transmission device for a non-contact power feeder system which comprises the above soft magnetic ferrite resin composition molded product.

Abstract translation: 本发明的目的是提供一种具有高功率传输效率和高抗冲击性的非接触式馈电系统的电力传输装置。 本发明的上述目的可以通过包含填料和粘合剂的软磁性铁氧体树脂组合物模制产品来实现，其中填料包括平均粒径为5至35μm的软磁铁氧体颗粒，粘合剂包含在 选自热塑性树脂和软质聚烯烃树脂中的至少一种材料，软磁性铁氧体树脂组合物成型体的成型密度为3.2〜4.7g / cm 3，磁导率为5〜15，功率 包括上述软磁性铁氧体树脂组合物成型体的非接触供电系统的传动装置。

公开(公告)号：US20160225500A1

公开(公告)日：2016-08-04

申请号：US15010539

申请日：2016-01-29

Applicant: TODA KOGYO CORP.

Inventor： Shohei KANEKO ,  Kuniyoshi SHIGEOKA ,  Nobuhiro KATAYAMA ,  Koichiro MORIMOTO

IPC: H01F1/08 ,  C22C38/10 ,  B22F9/02 ,  C22C38/00 ,  H01F1/053 ,  C22C38/14 ,  C22C38/06

CPC classification number: H01F1/083 ,  B22F9/023 ,  B22F2201/013 ,  B22F2203/13 ,  B22F2301/355 ,  B22F2998/10 ,  C22C38/002 ,  C22C38/005 ,  C22C38/06 ,  C22C38/10 ,  C22C38/14 ,  C22C2202/02 ,  H01F1/0572 ,  H01F1/0573 ,  H01F1/0578

Abstract: A process for producing R-T-B-based rare earth magnet powder having excellent coercive force and high remanent flux density. A process for producing R-T-B-based rare earth magnet powder by HDDR treatment, in which a raw material alloy for the R-T-B-based rare earth magnet powder includes R (wherein R represents at least one rare earth element including Y), T (wherein T represents Fe, or Fe and Co) and B (wherein B represents boron), and has a composition including R in an amount of between 12.0 atom % and 17.0 atom %, and B in an amount of between 4.5 atom % and 7.5 atom %; the HDDR treatment includes a DR step including a preliminary evacuation step and a complete evacuation step; and a rate of pressure reduction caused by evacuation in the preliminary evacuation step is not less than 1 kPa/min and not more than 30 kPa/min.

Abstract translation: 一种制造具有优良的矫顽力和高剩磁通密度的R-T-B系稀土磁体粉末的方法。 一种通过HDDR处理生产RTB的稀土磁体粉末的方法，其中用于RTB的稀土磁体粉末的原料合金包括R（其中R表示至少一种包含Y的稀土元素），T（其中T 表示Fe或Fe和Co）和B（其中B表示硼），并且其组成包括R为12.0原子％至17.0原子％的量，B为4.5原子％至7.5原子％ ; HDDR处理包括DR步骤，包括预抽真空步骤和完全抽空步骤; 并且在预抽真空步骤中由排气引起的压力降低率不小于1kPa / min且不大于30kPa / min。