公开(公告)号：US20240304788A1

公开(公告)日：2024-09-12

申请号：US18547869

申请日：2022-02-17

Applicant: NICHIA CORPORATION

Inventor： Takashi SUGIMOTO ,  Hideki YOSHIDA

IPC: H01M4/36 ,  H01M4/02 ,  H01M4/583 ,  H01M4/62

CPC classification number: H01M4/364 ,  H01M4/583 ,  H01M2004/021 ,  H01M2004/028 ,  H01M4/623 ,  H01M4/625

Abstract: Provided is a carbon material having a large specific surface area and good filling properties. The carbon material has a circularity of more than 0.83 and a specific surface area of not less than 400 m2/g. The carbon material is produced by a production method includes: providing a suspension containing first carbon particles having a specific surface area of not less than 50 m2/g, a water-soluble binder, and water; obtaining granular bodies from the suspension; and subjecting the granular bodies to heat treatment to obtain second carbon particles.

公开(公告)号：US20180340051A1

公开(公告)日：2018-11-29

申请号：US15989112

申请日：2018-05-24

Applicant: NICHIA CORPORATION

Inventor： Hideki YOSHIDA ,  Hirofumi OOGURI ,  Yuji AKAZAWA

IPC: C08K3/34 ,  C01B33/24

Abstract: A method of producing a modified fibrous wollastonite is provided. The method includes hydrothermally treating a fibrous wollastonite.

公开(公告)号：US20150270539A1

公开(公告)日：2015-09-24

申请号：US14667636

申请日：2015-03-24

Applicant: Nichia Corporation

Inventor： Hideki YOSHIDA

IPC: H01M4/36 ,  H01M4/1391 ,  H01M4/04 ,  H01M4/525 ,  H01M4/505

CPC classification number: H01M4/1391 ,  H01M4/0402 ,  H01M4/0471 ,  H01M4/1315 ,  H01M4/366 ,  H01M4/505 ,  H01M4/525 ,  H01M4/62 ,  H01M10/0525 ,  H01M2004/028 ,  Y02E60/122 ,  Y02P70/54

Abstract: A positive electrode active material for non-aqueous secondary battery includes core particles containing a lithium transition metal composite oxide, and a covering layer covering, that covers a surface of the core particle. The covering layer contains niobium and carbonate ions, and the carbonate ions are present at a concentration of from 0.2 weight % to 0.4 weight %. The positive electrode active material for non-aqueous secondary battery exhibits infrared absorption peaks at a wavenumber range of from 1320 cm−1 to 1370 cm−1, and at a wavenumber range of from 1640 cm−1 to 1710 cm−1.

Abstract translation: 非水系二次电池用正极活性物质包含含有锂过渡金属复合氧化物的芯粒子和覆盖芯粒子的表面的覆盖层。 覆盖层含有铌和碳酸根离子，碳酸根离子以0.2重量％至0.4重量％的浓度存在。 非水系二次电池用正极活性物质，在波数范围1320cm -1至1370cm -1，波数范围1640cm -1至1710cm -1处呈现红外吸收峰。

公开(公告)号：US20230187609A1

公开(公告)日：2023-06-15

申请号：US17995303

申请日：2021-03-31

Applicant: NICHIA CORPORATION

Inventor： Takashi SUGIMOTO ,  Hideki YOSHIDA ,  Toru KOIZUKA ,  Shoma HATA

IPC: H01M4/36 ,  H01M10/052 ,  H01M4/485 ,  H01M4/525 ,  H01M4/587 ,  H01M4/62 ,  H01M4/04

CPC classification number: H01M4/364 ,  H01M10/052 ,  H01M4/485 ,  H01M4/525 ,  H01M4/587 ,  H01M4/624 ,  H01M4/0404 ,  H01M2004/028

Abstract: Provided is a positive electrode composition with which a lithium sulfur battery may achieve a high cycle capacity retention. The positive electrode composition for lithium sulfur batteries includes a sulfur-carbon composite including a carbon material having void spaces and an elemental sulfur containing material disposed in the void spaces of the carbon material, and a lithium transition metal composite oxide.

公开(公告)号：US20220089457A1

公开(公告)日：2022-03-24

申请号：US17457505

申请日：2021-12-03

Applicant: NICHIA CORPORATION

Inventor： Hideki YOSHIDA ,  Masato SONOO ,  Takahiro KITAGAWA

IPC: C01G53/04 ,  H01M4/525 ,  H01M4/505 ,  C30B7/14 ,  C30B29/10 ,  C30B1/10 ,  C30B29/22 ,  C30B29/68 ,  C01G45/12 ,  C01G51/00 ,  C01G51/04 ,  C01G53/00

Abstract: A method for producing a nickel cobalt complex hydroxide includes first crystallization of supplying a solution containing Ni, Co and Mn, a complex ion forming agent and a basic solution separately and simultaneously to one reaction vessel to obtain nickel cobalt complex hydroxide particles, and a second crystallization of, after the first crystallization, further supplying a solution containing nickel, cobalt, and manganese, a solution of a complex ion forming agent, a basic solution, and a solution containing said element M separately and simultaneously to the reaction vessel to crystallize a complex hydroxide particles containing nickel, cobalt, manganese and said element M on the nickel cobalt complex hydroxide particles crystallizing a complex hydroxide particles comprising Ni, Co, Mn and the element M on the nickel cobalt complex hydroxide particles.

公开(公告)号：US20200307998A1

公开(公告)日：2020-10-01

申请号：US16829635

申请日：2020-03-25

Applicant: NICHIA CORPORATION

Inventor： Hideki YOSHIDA

IPC: C01B21/064

Abstract: A method of manufacturing hexagonal boron nitride fibers includes: providing amorphous fibrous boron nitride; performing heat treatment on the amorphous fibrous boron nitride at a first temperature of 500° C. or greater and less than 900° C. in an oxygen-containing atmosphere to obtain a first heat-treated product; and performing heat treatment on the first heat-treated product at a second temperature in a range of 1000° C. to 1800° C. in a nitrogen-containing atmosphere to obtain a second heat-treated product containing hexagonal boron nitride.

公开(公告)号：US20240270932A1

公开(公告)日：2024-08-15

申请号：US18643873

申请日：2024-04-23

Applicant: NICHIA CORPORATION

Inventor： Hideki YOSHIDA ,  Hirofumi OOGURI ,  Yuji AKAZAWA

IPC: C08K3/34 ,  C01B33/24 ,  C08K7/10

CPC classification number: C08K3/34 ,  C01B33/24 ,  C08K7/10

Abstract: A method of producing a modified fibrous wollastonite is provided. The method includes hydrothermally treating a fibrous wollastonite.

公开(公告)号：US20200052296A1

公开(公告)日：2020-02-13

申请号：US16597416

申请日：2019-10-09

Applicant: NICHIA CORPORATION

Inventor： Hideki YOSHIDA ,  Masato SONOO ,  Takahiro KITAGAWA

IPC: H01M4/525 ,  C01G53/00 ,  H01M4/02

Abstract: A method of producing a nickel-cobalt composite hydroxide includes: preparing a first solution containing nickel ions and cobalt ions; preparing a second solution containing tungsten ions and having a pH of 10 or more; preparing a third solution containing a complex ion-forming factor; preparing a liquid medium having a pH in a range of 10 to 13.5; supplying the first solution, the second solution, and the third solution separately and simultaneously to the liquid medium to obtain a reacted solution having a pH in a range of 10 to 13.5; and obtaining the nickel-cobalt composite hydroxide containing nickel, cobalt, and tungsten from the reacted solution.

公开(公告)号：US20160359163A1

公开(公告)日：2016-12-08

申请号：US15243369

申请日：2016-08-22

Applicant: Nichia Corporation

Inventor： Hideki YOSHIDA

IPC: H01M4/1391 ,  H01M4/04 ,  H01M4/1315 ,  H01M4/525 ,  H01M10/0525 ,  H01M4/36 ,  H01M4/505

CPC classification number: H01M4/1391 ,  H01M4/0402 ,  H01M4/0471 ,  H01M4/1315 ,  H01M4/366 ,  H01M4/505 ,  H01M4/525 ,  H01M4/62 ,  H01M10/0525 ,  H01M2004/028 ,  Y02E60/122 ,  Y02P70/54

Abstract: A positive electrode active material for non-aqueous secondary battery includes core particles containing a lithium transition metal composite oxide, and a covering layer covering, that covers a surface of the core particle. The covering layer contains niobium and carbonate ions, and the carbonate ions are present at a concentration of from 0.2 weight % to 0.4 weight %. The positive electrode active material for non-aqueous secondary battery exhibits infrared absorption peaks at a wavenumber range of from 1320 cm−1 to 1370 cm−1, and at a wavenumber range of from 1640 cm−1 to 1710 cm−1.

公开(公告)号：US20190263675A1

公开(公告)日：2019-08-29

申请号：US16410726

申请日：2019-05-13

Applicant: NICHIA CORPORATION

Inventor： Hideki YOSHIDA ,  Masato SONOO ,  Takahiro KITAGAWA

IPC: C01G53/04 ,  C01G51/00 ,  C01G51/04 ,  C01G53/00 ,  C01G45/12 ,  C30B7/14 ,  C30B29/10 ,  C30B1/10 ,  C30B29/22 ,  C30B29/68 ,  H01M4/525 ,  H01M4/505

Abstract: A method for producing a nickel cobalt complex hydroxide includes first crystallization of supplying a solution containing Ni, Co and Mn, a complex ion forming agent and a basic solution separately and simultaneously to one reaction vessel to obtain nickel cobalt complex hydroxide particles, and a second crystallization of, after the first crystallization, further supplying a solution containing nickel, cobalt, and manganese, a solution of a complex ion forming agent, a basic solution, and a solution containing said element M separately and simultaneously to the reaction vessel to crystallize a complex hydroxide particles containing nickel, cobalt, manganese and said element M on the nickel cobalt complex hydroxide particles crystallizing a complex hydroxide particles comprising Ni, Co, Mn and the element M on the nickel cobalt complex hydroxide particles.