公开(公告)号：US20150021518A1

公开(公告)日：2015-01-22

申请号：US14379924

申请日：2013-02-14

Applicant: Sumitomo Metal Mining Co., Ltd.

Inventor： Rei Kokado ,  Kensaku Mori ,  Masanori Takagi ,  Tetsutaro Hayashi

IPC: H01M4/36

CPC classification number: H01M4/1391 ,  B29B7/005 ,  B29C43/003 ,  B29C43/02 ,  B29K2105/16 ,  B29K2509/00 ,  B29K2995/0005 ,  B29L2031/3468 ,  C01G53/42 ,  C01G53/50 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/12 ,  C01P2006/40 ,  H01M4/043 ,  H01M4/131 ,  H01M4/364 ,  H01M4/485 ,  H01M4/525 ,  H01M4/622 ,  H01M4/624 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/028 ,  H01M2220/20

Abstract: Provided is a positive-electrode material for nonaqueous-electrolyte secondary batteries, the positive-electrode material being capable of achieving both high capacity and high output when used for a positive electrode for nonaqueous-electrolyte secondary batteries. Also, provided is a method for manufacturing the positive-electrode material for nonaqueous-electrolyte secondary batteries, wherein a lithium metal composite oxide powder is mixed with lithium tungstate, the lithium metal composite oxide powder being represented by a general formula LizNi1-x-yCoxMyO2 (wherein 0.10≦x≦0.35, 0≦y≦0.35, 0.97≦z≦1.20, and M is an addition element and at least one element selected from Mn, V, Mg, Mo, Nb, Ti, and Al) and comprising primary particles and secondary particles composed of aggregation of the primary particles.

Abstract translation: 本发明提供一种非水电解质二次电池用正极材料，正极材料在用于非水电解质二次电池用正极时，能够实现高容量，高输出。 此外，提供一种制造非水电解质二次电池用正极材料的方法，其中将锂金属复合氧化物粉末与钨酸锂混合，所述锂金属复合氧化物粉末由通式LizNi1-x-yCoxMyO2 （其中0.10和nlE; x和nlE; 0.35,0和nlE; y＆nlE; 0.35,0.97和nlE; z＆nlE; 1.20，M是添加元素和至少一种选自Mn，V，Mg，Mo，Nb，Ti和Al的元素） 并且包含由一次粒子的聚集构成的一次粒子和二次粒子。

公开(公告)号：US10818921B2

公开(公告)日：2020-10-27

申请号：US15824799

申请日：2017-11-28

Applicant: SUMITOMO METAL MINING CO., LTD.

Inventor： Mori Kensaku ,  Shin Imaizumi ,  Rei Kokado

IPC: H01M4/52 ,  H01M4/48 ,  H01M4/50 ,  C01G53/00 ,  H01M4/525 ,  H01M4/485 ,  H01M4/505

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.

公开(公告)号：US09991505B2

公开(公告)日：2018-06-05

申请号：US14379924

申请日：2013-02-14

Applicant: Sumitomo Metal Mining Co., Ltd.

Inventor： Rei Kokado ,  Kensaku Mori ,  Masanori Takagi ,  Tetsutaro Hayashi

IPC: H01M4/1391 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/485 ,  B29B7/00 ,  B29C43/00 ,  B29C43/02 ,  H01M4/04 ,  H01M4/36 ,  C01G53/00 ,  H01M4/525 ,  H01M4/02 ,  H01M4/131 ,  H01M10/052 ,  B29K105/16 ,  B29K509/00 ,  B29L31/34

CPC classification number: H01M4/1391 ,  B29B7/005 ,  B29C43/003 ,  B29C43/02 ,  B29K2105/16 ,  B29K2509/00 ,  B29K2995/0005 ,  B29L2031/3468 ,  C01G53/42 ,  C01G53/50 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/12 ,  C01P2006/40 ,  H01M4/043 ,  H01M4/131 ,  H01M4/364 ,  H01M4/485 ,  H01M4/525 ,  H01M4/622 ,  H01M4/624 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/028 ,  H01M2220/20

Abstract: Provided is a positive-electrode material for nonaqueous-electrolyte secondary batteries, the positive-electrode material being capable of achieving both high capacity and high output when used for a positive electrode for nonaqueous-electrolyte secondary batteries. Also, provided is a method for manufacturing the positive-electrode material for nonaqueous-electrolyte secondary batteries, wherein a lithium metal composite oxide powder is mixed with lithium tungstate, the lithium metal composite oxide powder being represented by a general formula LizNi1-x-yCoxMyO2 (wherein 0.10≤x≤0.35, 0≤y≤0.35, 0.97≤z≤1.20, and M is an addition element and at least one element selected from Mn, V, Mg, Mo, Nb, Ti, and Al) and comprising primary particles and secondary particles composed of aggregation of the primary particles.

公开(公告)号：US10056610B2

公开(公告)日：2018-08-21

申请号：US14892830

申请日：2014-05-22

Applicant: SUMITOMO METAL MINING CO., LTD.

Inventor： Tomoko Nakayama ,  Rei Kokado ,  Kensaku Mori

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

CPC classification number: H01M4/485 ,  C01G53/42 ,  C01P2002/30 ,  C01P2002/76 ,  C01P2006/12 ,  H01B1/08 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  H01M10/0525 ,  H01M2220/20 ,  H01M2220/30

Abstract: The purpose of the present invention is to easily provide at low cost, a cathode active material for non-aqueous electrolyte secondary batteries, which exhibits high particle strength and high weather resistance, while enabling achievement of excellent charge and discharge capacity and excellent output characteristics in cases where the cathode active material is used as a cathode material of a non-aqueous electrolyte secondary battery. A slurry of from 500 g/L to 2000 g/L is formed by adding water to a powder of a lithium nickel composite oxide represented by the general formula (A): LizNi1−x−yCoxMyO2, where 0.10≤x≤0.20, 0≤y≤0.10, 0.97≤z≤1.20, and M represents at least one element selected from among Mn, V, Mg, Mo, Nb, Ti and Al); the slurry is washed with water by stirring; and after filtration, the resulting material is subjected to a heat treatment at a temperature of from 120° C. to 550° C. (inclusive) in an oxygen atmosphere having an oxygen concentration of 80% by volume or more.

公开(公告)号：US10090514B2

公开(公告)日：2018-10-02

申请号：US15381171

申请日：2016-12-16

Applicant: SUMITOMO METAL MINING CO., LTD.

Inventor： Rei Kokado ,  Kensaku Mori ,  Masanori Takagi ,  Tetsutaro Hayashi

IPC: H01M4/62 ,  H01M4/525 ,  H01M4/485 ,  H01M4/36 ,  H01M4/04 ,  C01G53/00 ,  H01M4/1391 ,  H01M4/131 ,  H01M4/02 ,  B29B7/00 ,  B29C43/00 ,  B29C43/02 ,  H01M10/0525 ,  H01M10/052 ,  B29K105/16 ,  B29K509/00 ,  B29L31/34

Abstract: Provided is a positive-electrode material for nonaqueous-electrolyte secondary batteries, the positive-electrode material being capable of achieving both high capacity and high output when used for a positive electrode for nonaqueous-electrolyte secondary batteries. Also, provided is a method for manufacturing the positive-electrode material for nonaqueous-electrolyte secondary batteries, wherein a lithium metal composite oxide powder is mixed with lithium tungstate, the lithium metal composite oxide powder being represented by a general formula LizNi1−x−yCoxMyO2 (wherein 0.10≤x≤0.35, 0≤y≤0.35, 0.97≤z≤1.20, and M is an addition element and at least one element selected from Mn, V, Mg, Mo, Nb, Ti, and Al) and comprising primary particles and secondary particles composed of aggregation of the primary particles.

公开(公告)号：US20170098821A1

公开(公告)日：2017-04-06

申请号：US15381171

申请日：2016-12-16

Applicant: SUMITOMO METAL MINING CO., LTD.

Inventor： Rei Kokado ,  Kensaku Mori ,  Masanori Takagi ,  Tetsutaro Hayashi

IPC: H01M4/1391 ,  H01M4/04 ,  H01M4/36 ,  H01M4/525 ,  C01G53/00 ,  H01M4/62 ,  H01M10/0525 ,  B29C43/00 ,  B29C43/02 ,  B29B7/00 ,  H01M4/131 ,  H01M4/485

CPC classification number: H01M4/1391 ,  B29B7/005 ,  B29C43/003 ,  B29C43/02 ,  B29K2105/16 ,  B29K2509/00 ,  B29K2995/0005 ,  B29L2031/3468 ,  C01G53/42 ,  C01G53/50 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/12 ,  C01P2006/40 ,  H01M4/043 ,  H01M4/131 ,  H01M4/364 ,  H01M4/485 ,  H01M4/525 ,  H01M4/622 ,  H01M4/624 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/028 ,  H01M2220/20

Abstract: Provided is a positive-electrode material for nonaqueous-electrolyte secondary batteries, the positive-electrode material being capable of achieving both high capacity and high output when used for a positive electrode for nonaqueous-electrolyte secondary batteries. Also, provided is a method for manufacturing the positive-electrode material for nonaqueous-electrolyte secondary batteries, wherein a lithium metal composite oxide powder is mixed with lithium tungstate, the lithium metal composite oxide powder being represented by a general formula LizNi1-x-yCoxMyO2 (wherein 0.10≦x≦0.35, 0≦y≦0.35, 0.97≦z≦1.20, and M is an addition element and at least one element selected from Mn, V, Mg, Mo, Nb, Ti, and Al) and comprising primary particles and secondary particles composed of aggregation of the primary particles.

公开(公告)号：US09406928B2

公开(公告)日：2016-08-02

申请号：US14696745

申请日：2015-04-27

Applicant: Sumitomo Metal Mining Co., Ltd.

Inventor： Rei Kokado ,  Kensaku Mori

IPC: H01M4/131 ,  H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  B82Y30/00 ,  C01G53/00 ,  H01M4/485 ,  H01M10/0525 ,  H01M4/02

CPC classification number: H01M4/131 ,  B82Y30/00 ,  C01G53/42 ,  C01G53/50 ,  C01P2002/52 ,  C01P2002/54 ,  C01P2004/03 ,  C01P2004/45 ,  C01P2004/61 ,  C01P2004/64 ,  C01P2006/12 ,  H01M4/366 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/028 ,  Y02E60/122 ,  Y02P70/54 ,  Y02T10/7011

Abstract: Provided is a method for manufacturing the positive electrode active material for nonaqueous electrolyte secondary batteries, the method comprising: a first step, wherein an alkaline solution with a tungsten compound dissolved therein is added to and mixed with a lithium metal composite oxide powder represented by a general formula LizNi1—x—yCoxMyO2 (wherein, 0.10≦x≦0.35, 0≦y≦0.35, 0.97≦Z≦1.20, and M is at least one element selected from Mn, V, Mg, Mo, Nb, Ti, and Al), including primary particles and secondary particles composed of aggregation of the primary particles, and thereby W is dispersed on a surface of the primary particles; and a second step, wherein, by heat treating the mixture of the alkaline solution with the tungsten compound dissolved therein and the lithium metal composite oxide powder, fine particles containing W and Li are formed on a surface of the primary particles.

Abstract translation: 本发明提供一种非水电解质二次电池用正极活性物质的制造方法，其特征在于，包括：第一工序，将其中溶解有钨化合物的碱性溶液加入并与其混合，所述锂金属复合氧化物粉末由 通式LizNi1-x-yCoxMyO2（其中，0.10≤x≤0.35,0≤y≤0.35,0.97≤Z≤1.20，M是选自Mn，V，Mg，Mo，Nb，Ti和 Al），包括由一次粒子的聚集构成的一次粒子和二次粒子，由此将W分散在一次粒子的表面上; 和第二步骤，其中通过将溶解的钨化合物的碱溶液与锂金属复合氧化物粉末进行热处理，在一次颗粒的表面上形成含有W和Li的微粒。

公开(公告)号：US10516164B2

公开(公告)日：2019-12-24

申请号：US16034586

申请日：2018-07-13

Applicant: SUMITOMO METAL MINING CO., LTD.

Inventor： Tomoko Nakayama ,  Rei Kokado ,  Kensaku Mori

IPC: H01B1/08 ,  H01M4/485 ,  H01M4/525 ,  C01G53/00 ,  H01M10/0525 ,  H01M4/505 ,  H01M10/052

Abstract: The purpose of the present invention is to easily provide at low cost, a cathode active material for non-aqueous electrolyte secondary batteries, which exhibits high particle strength and high weather resistance, while enabling achievement of excellent charge and discharge capacity and excellent output characteristics in cases where the cathode active material is used as a cathode material of a non-aqueous electrolyte secondary battery. A slurry of from 500 g/L to 2000 g/L is formed by adding water to a powder of a lithium nickel composite oxide represented by the general formula (A): LizNi1-x-yCoxMyO2, where 0.10≤x≤0.20, 0≤y≤0.10, 0.97≤z≤1.20, and M represents at least one element selected from among Mn, V, Mg, Mo, Nb, Ti and Al); the slurry is washed with water by stirring; and after filtration, the resulting material is subjected to a heat treatment at a temperature of from 120° C. to 550° C. (inclusive) in an oxygen atmosphere having an oxygen concentration of 80% by volume or more.

公开(公告)号：US20180145326A1

公开(公告)日：2018-05-24

申请号：US15824799

申请日：2017-11-28

Applicant: SUMITOMO METAL MINING CO., LTD.

Inventor： Mori Kensaku ,  Shin Imaizumi ,  Rei Kokado

IPC: H01M4/525 ,  H01M4/485 ,  H01M4/505 ,  C01G53/00

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.

公开(公告)号：US20150228974A1

公开(公告)日：2015-08-13

申请号：US14696745

申请日：2015-04-27

Applicant: Sumitomo Metal Mining Co., Ltd.

Inventor： Rei Kokado ,  Kensaku Mori

IPC: H01M4/36 ,  H01M4/525 ,  H01M4/505 ,  H01M4/131

CPC classification number: H01M4/131 ,  B82Y30/00 ,  C01G53/42 ,  C01G53/50 ,  C01P2002/52 ,  C01P2002/54 ,  C01P2004/03 ,  C01P2004/45 ,  C01P2004/61 ,  C01P2004/64 ,  C01P2006/12 ,  H01M4/366 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/028 ,  Y02E60/122 ,  Y02P70/54 ,  Y02T10/7011

Abstract: Provided is a method for manufacturing the positive electrode active material for nonaqueous electrolyte secondary batteries, the method comprising: a first step, wherein an alkaline solution with a tungsten compound dissolved therein is added to and mixed with a lithium metal composite oxide powder represented by a general formula LizNi1—x—yCoxMyO2 (wherein, 0.10≦x≦0.35, 0≦y≦0.35, 0.97≦Z≦1.20, and M is at least one element selected from Mn, V, Mg, Mo, Nb, Ti, and Al), including primary particles and secondary particles composed of aggregation of the primary particles, and thereby W is dispersed on a surface of the primary particles; and a second step, wherein, by heat treating the mixture of the alkaline solution with the tungsten compound dissolved therein and the lithium metal composite oxide powder, fine particles containing W and Li are formed on a surface of the primary particles.

Abstract translation: 本发明提供一种非水电解质二次电池用正极活性物质的制造方法，其特征在于，包括：第一工序，将其中溶解有钨化合物的碱性溶液加入并与其混合，所述锂金属复合氧化物粉末由 通式LizNi1-x-yCoxMyO2（其中，0.10＆nlE; x＆nlE; 0.35,0和nlE; y＆nlE; 0.35,0.97＆nlE; Z＆nlE; 1.20，M是选自Mn，V，Mg，Mo，Nb，Ti中的至少一种元素 ，和Al），包括一次粒子和由一次粒子聚集构成的二次粒子，由此将W分散在一次粒子的表面上; 和第二步骤，其中通过将溶解的钨化合物的碱溶液与锂金属复合氧化物粉末进行热处理，在一次颗粒的表面上形成含有W和Li的微粒。