公开(公告)号：US11545663B2

公开(公告)日：2023-01-03

申请号：US17318692

申请日：2021-05-12

申请人： SUMITOMO METAL MINING CO., LTD.

发明人： Atsushi Fukui ,  Katsuya Inoue ,  Shuhei Oda ,  Hiroyuki Toya

IPC分类号： H01M4/525 ,  C01G53/00 ,  H01M4/505 ,  H01M10/0525 ,  H01M4/02

摘要： Provided are a cathode active material having a suitable particle size and high uniformity, and a nickel composite hydroxide as a precursor of the cathode active material. When obtaining nickel composite hydroxide by a crystallization reaction, nucleation is performed by controlling a nucleation aqueous solution that includes a metal compound, which includes nickel, and an ammonium ion donor so that the pH value at a standard solution temperature of 25° C. becomes 12.0 to 14.0, after which, particles are grown by controlling a particle growth aqueous solution that includes the formed nuclei so that the pH value at a standard solution temperature of 25° C. becomes 10.5 to 12.0, and so that the pH value is lower than the pH value during nucleation. The crystallization reaction is performed in a non-oxidizing atmosphere at least in a range after the processing time exceeds at least 40% of the total time of the particle growth process from the start of the particle growth process where the oxygen concentration is 1 volume % or less, and with controlling an agitation power requirement per unit volume into a range of 0.5 kW/m3 to 4 kW/m3 at least during the nucleation process.

公开(公告)号：US10483539B2

公开(公告)日：2019-11-19

申请号：US15500135

申请日：2015-07-01

申请人： SUMITOMO METAL MINING CO., LTD.

发明人： Katsuya Inoue ,  Hiroyuki Toya

IPC分类号： H01M4/505 ,  H01M4/525 ,  H01M4/04 ,  H01M10/0525 ,  C01G53/00 ,  H01M4/02

摘要： A positive electrode active material for a non-aqueous electrolyte secondary battery, which enables a non-aqueous electrolyte secondary battery to achieve great battery characteristics, and a process for producing the material, as well as a non-aqueous electrolyte secondary batter. Provided is a positive electrode active material for a non-aqueous electrolyte secondary battery, where secondary particles of lithium-nickel-cobalt-manganese composite oxide particles are composed of outer-shell parts with a high manganese concentration and central parts with a low manganese concentration, which are lower in manganese concentration than the outer-shell parts, primary particles constituting the outer-shell parts of the secondary particles with the high manganese concentration are composed of outer peripheral parts with a low manganese concentration and inner parts with a high manganese concentration, and the ratio of the manganese concentration in the inner part to the manganese concentration in the outer peripheral part is 1.5 to 2.5 in the primary particles.

公开(公告)号：US10044025B2

公开(公告)日：2018-08-07

申请号：US14692213

申请日：2015-04-21

申请人： SUMITOMO METAL MINING CO., LTD.

发明人： Hiroyuki Toya ,  Kazuomi Ryoshi ,  Toshiyuki Osako

IPC分类号： H01M4/131 ,  C01G53/00 ,  H01M10/052 ,  H01M4/36 ,  H01M4/48 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/1391 ,  H01M10/04 ,  H01M4/02

摘要： Provided are nickel manganese composite hydroxide particles that are a precursor for forming cathode active material comprising lithium nickel manganese composite oxide having hollow structure of particles having a small and uniform particle size for obtaining a non-aqueous electrolyte secondary battery having high capacity, high output and good cyclability. When obtaining the nickel manganese composite hydroxide particles from a crystallization reaction, an aqueous solution for nucleation, which includes at least a metallic compound that contains nickel and a metallic compound that contains manganese, and does not include a complex ion formation agent that forms complex ions with nickel, manganese and cobalt, is controlled so that the temperature of the solution is 60° C. or greater, and so that the pH value that is measured at a standard solution temperature of 25° C. is 11.5 to 13.5, and after nucleation is performed, an aqueous solution for particle growth, which includes the nuclei that were formed in the nucleation step and does not substantially include a complex ion formation agent that forms complex ions with nickel, manganese and cobalt, is controlled so that the temperature of the solution is 60° C. or greater, and so that the pH value that is measured at a standard solution temperature of 25° C. is 9.5 to 11.5, and is less than the pH value in the nucleation step.

公开(公告)号：US10038189B2

公开(公告)日：2018-07-31

申请号：US15144096

申请日：2016-05-02

申请人： SUMITOMO METAL MINING CO., LTD.

发明人： Hiroyuki Toya ,  Atsushi Fukui

IPC分类号： H01M4/505 ,  H01M4/525 ,  C01G53/00 ,  C01G45/00 ,  C01G51/00 ,  C01D15/02 ,  H01M4/485 ,  C30B29/22 ,  H01M2/02 ,  H01M2/16 ,  H01M4/131 ,  H01M4/134 ,  H01M4/38 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/0585 ,  H01M4/04 ,  H01M4/1391 ,  H01M4/02

CPC分类号： H01M4/525 ,  C01D15/02 ,  C01G45/006 ,  C01G51/006 ,  C01G53/006 ,  C01G53/42 ,  C01G53/50 ,  C01P2002/52 ,  C01P2004/01 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2004/84 ,  C01P2006/12 ,  C01P2006/40 ,  C30B29/22 ,  H01M2/0222 ,  H01M2/1653 ,  H01M4/043 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/134 ,  H01M4/1391 ,  H01M4/382 ,  H01M4/485 ,  H01M4/505 ,  H01M4/623 ,  H01M4/625 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/0585 ,  H01M2004/021 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2220/20 ,  H01M2220/30 ,  Y02P70/54

摘要： A transition metal composite hydroxide can be used as a precursor to allow a lithium transition metal composite oxide having a small and highly uniform particle diameter to be obtained. A method also is provided for producing a transition metal composite hydroxide represented by a general formula (1) MxWsAt(OH)2+α, coated with a compound containing the additive element, and serving as a precursor of a positive electrode active material for nonaqueous electrolyte secondary batteries. The method includes producing a composite hydroxide particle, forming nuclei, growing a formed nucleus; and forming a coating material containing a metal oxide or hydroxide on the surfaces of composite hydroxide particles obtained through the upstream step.

公开(公告)号：US20160244336A1

公开(公告)日：2016-08-25

申请号：US15144096

申请日：2016-05-02

申请人： SUMITOMO METAL MINING CO., LTD.

发明人： Hiroyuki Toya ,  Atsushi Fukui

IPC分类号： C01G53/00 ,  H01M4/505 ,  H01M4/525

CPC分类号： H01M4/525 ,  C01D15/02 ,  C01G45/006 ,  C01G51/006 ,  C01G53/006 ,  C01G53/42 ,  C01G53/50 ,  C01P2002/52 ,  C01P2004/01 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2004/84 ,  C01P2006/12 ,  C01P2006/40 ,  C30B29/22 ,  H01M2/0222 ,  H01M2/1653 ,  H01M4/043 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/134 ,  H01M4/1391 ,  H01M4/382 ,  H01M4/485 ,  H01M4/505 ,  H01M4/623 ,  H01M4/625 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/0585 ,  H01M2004/021 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2220/20 ,  H01M2220/30 ,  Y02P70/54

摘要： A transition metal composite hydroxide can be used as a precursor to allow a lithium transition metal composite oxide having a small and highly uniform particle diameter to be obtained. A method also is provided for producing a transition metal composite hydroxide represented by a general formula (1) MxWsAt(OH)2+α, coated with a compound containing the additive element, and serving as a precursor of a positive electrode active material for nonaqueous electrolyte secondary batteries. The method includes producing a composite hydroxide particle, forming nuclei, growing a formed nucleus; and forming a coating material containing a metal oxide or hydroxide on the surfaces of composite hydroxide particles obtained through the upstream step.

摘要翻译： 可以使用过渡金属复合氢氧化物作为前体，以获得具有小而高度均匀粒径的锂过渡金属复合氧化物。 还提供了一种制备由通式（1）MxWsAt（OH）2 +α表示的过渡金属复合氢氧化物的方法，所述过渡金属复合氢氧化物涂覆有含有添加元素的化合物，并且用作非水性正极活性材料的前体 电解质二次电池。 该方法包括制备复合氢氧化物颗粒，形成核，生长形成的核; 并且在通过上游步骤获得的复合氢氧化物颗粒的表面上形成含有金属氧化物或氢氧化物的涂料。

公开(公告)号：US20140377660A1

公开(公告)日：2014-12-25

申请号：US14366871

申请日：2012-12-20

申请人： SUMITOMO METAL MINING CO., LTD.

发明人： Atsushi Fukui ,  Hiroyuki Toya

IPC分类号： H01M4/36 ,  H01M4/525 ,  H01M10/0525 ,  H01M4/04 ,  H01M4/1391 ,  C01G53/00 ,  H01M4/505

CPC分类号： H01M4/364 ,  C01G53/006 ,  C01G53/42 ,  C01G53/44 ,  C01G53/50 ,  C01P2004/32 ,  C01P2004/45 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2004/84 ,  C01P2006/12 ,  H01M4/0471 ,  H01M4/0497 ,  H01M4/1391 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  Y02E60/122 ,  Y02P70/54

摘要： Provided is a lithium composite oxide having a uniform and suitable particle size and high specific surface area due to a hollow structure that can be produced on an industrial scale. A nickel composite hydroxide as a raw material thereof is obtained controlling the particle size distribution of the nickel composite hydroxide, the nickel composite hydroxide having a structure comprising a center section that comprises minute primary particles, and an outer-shell section that exists on the outside of the center section and comprises plate shaped primary particles that are larger than the primary particles of the center section, by a nucleation process and a particle growth process that are separated by controlling the pH during crystallization, and by controlling the reaction atmosphere in each process and the manganese content in a metal compound that is supplied in each process.

摘要翻译： 本发明提供一种锂复合氧化物，其具有均匀且适当的粒径和比表面积，由于可以工业规模生产的中空结构。 获得镍复合氢氧化物作为其原料，其控制镍复合氢氧化物的粒度分布，镍复合氢氧化物具有包括微小初级颗粒的中心部分的结构和存在于外部的外壳部分 的中心部分，并且通过成核过程和通过控制结晶期间的pH分离的成核过程和颗粒生长过程，并且通过控制每个过程中的反应气氛，包括大于中心部分的初级颗粒的板状初级颗粒 以及在各工序中供给的金属化合物中的锰含量。

公开(公告)号：US20130288129A1

公开(公告)日：2013-10-31

申请号：US13925971

申请日：2013-06-25

申请人： SUMITOMO METAL MINING CO., LTD.

发明人： Hiroyuki Toya ,  Kazuomi Ryoshi ,  Toshiyuki Osako

IPC分类号： H01M4/131

CPC分类号： H01M4/131 ,  C01G53/00 ,  C01G53/006 ,  C01G53/50 ,  C01P2002/52 ,  C01P2004/03 ,  C01P2004/32 ,  C01P2004/50 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2004/88 ,  H01M4/1391 ,  H01M4/362 ,  H01M4/483 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0427 ,  H01M10/052 ,  H01M2004/028 ,  Y02E60/122 ,  Y02P70/54

摘要： To obtain a non-aqueous electrolyte secondary battery having high capacity, high output and good cyclability, nickel manganese composite hydroxide particles are a precursor for a cathode active material having lithium nickel manganese composite oxide with a hollow structure and a small and uniform particle size.An aqueous solution for nucleation includes a metallic compounds that contains nickel and a metallic compound that contains manganese, but does not include a complex ion formation agent that forms complex ions with nickel, manganese and cobalt. After nucleation is performed, an aqueous solution for particle growth is controlled so that the temperature of the solution is 60° C. or greater, and so that the pH value that is measured at a standard solution temperature of 25° C. is 9.5 to 11.5, and is less than the pH value in the nucleation step.

摘要翻译： 为了获得具有高容量，高产出和良好循环性能的非水电解质二次电池，镍锰复合氢氧化物颗粒是具有中空结构和小而均匀粒径的具有锂镍锰复合氧化物的阴极活性材料的前体。 用于成核的水溶液包括含有镍的金属化合物和含有锰的金属化合物，但不包括与镍，锰和钴形成复合离子的复合离子形成剂。 在成核后，控制用于颗粒生长的水溶液使溶液的温度为60℃或更高，并且使得在25℃的标准溶液温度下测量的pH值为9.5至 11.5，并且小于成核步骤中的pH值。

公开(公告)号：US12087943B2

公开(公告)日：2024-09-10

申请号：US18220905

申请日：2023-07-12

申请人： SUMITOMO METAL MINING CO., LTD.

发明人： Taira Aida ,  Hiroyuki Toya

IPC分类号： H01M4/505 ,  C01G53/00 ,  H01M4/525 ,  H01M10/0525 ,  H01M4/02

CPC分类号： H01M4/505 ,  C01G53/50 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/028

摘要： Provided is a precursor of a positive electrode active material containing, in a reduced amount, impurities which do not contribute to a charge/discharge reaction but rather corrode a firing furnace and peripheral equipment and thus having excellent battery characteristics and safety, and production method thereof.
A method for producing a precursor of a positive electrode active material for nonaqueous electrolyte secondary batteries having a hollow structure or porous structure includes obtaining the precursor by washing nickel-manganese composite hydroxide particles having a particular composition ratio and a pore structure in which pores are present within the particles with an aqueous carbonate solution having a carbonate concentration of 0.1 mol/L or more.

公开(公告)号：US11283072B2

公开(公告)日：2022-03-22

申请号：US16539170

申请日：2019-08-13

申请人： SUMITOMO METAL MINING CO., LTD.

发明人： Yasutaka Kamata ,  Taira Aida ,  Hiroyuki Toya

IPC分类号： H01M4/525 ,  H01M4/485 ,  H01M4/505 ,  H01M10/052 ,  C01G53/04 ,  C01G53/00 ,  C30B1/04 ,  C30B1/10 ,  C30B7/14 ,  C30B29/10 ,  C30B29/22 ,  H01M4/02

摘要： 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. The secondary particles have a center section formed by the plate-shaped primary particles, a layered structure with a low-density section formed by the fine primary particles, and a high-density section formed by the plate-shaped primary particles on the outside of the center section. The average value of the ratio of the center section outer diameter to the particle size of the secondary particles is 30% to 80%, and the average value of the ratio of the high-density section radial direction thickness to the particle size of the secondary particles is 5% to 25%.

公开(公告)号：US11038168B2

公开(公告)日：2021-06-15

申请号：US15892681

申请日：2018-02-09

申请人： SUMITOMO METAL MINING CO., LTD.

发明人： Atsushi Fukui ,  Katsuya Inoue ,  Shuhei Oda ,  Hiroyuki Toya

IPC分类号： H01M4/525 ,  C01G53/00 ,  H01M4/505 ,  H01M10/0525 ,  H01M4/02

摘要： Provided are a cathode active material having a suitable particle size and high uniformity, and a nickel composite hydroxide as a precursor of the cathode active material. When obtaining nickel composite hydroxide by a crystallization reaction, nucleation is performed by controlling a nucleation aqueous solution that includes a metal compound, which includes nickel, and an ammonium ion donor so that the pH value at a standard solution temperature of 25° C. becomes 12.0 to 14.0, after which, particles are grown by controlling a particle growth aqueous solution that includes the formed nuclei so that the pH value at a standard solution temperature of 25° C. becomes 10.5 to 12.0, and so that the pH value is lower than the pH value during nucleation. The crystallization reaction is performed in a non-oxidizing atmosphere at least in a range after the processing time exceeds at least 40% of the total time of the particle growth process from the start of the particle growth process where the oxygen concentration is 1 volume % or less, and with controlling an agitation power requirement per unit volume into a range of 0.5 kW/m3 to 4 kW/m3 at least during the nucleation process.