公开(公告)号：US20200216321A1

公开(公告)日：2020-07-09

申请号：US16637511

申请日：2017-08-10

Applicant: NEC CORPORATION

Inventor： Ryota YUGE

IPC: C01B32/18 ,  B01J23/745

Abstract: In order to provide a means for industrially producing a fibrous carbon nanohorn aggregate (CNB), a production member is used which is a combination of a plurality of carbon targets containing a metal catalyst selected from Fe, Ni, Co or a single substance or a mixture of these two or three substances capable of generating carbon nanohorn aggregates including the fibrous carbon nanohorn aggregate by laser irradiation, and a target fixing jig for fixing the carbon target, wherein the target fixing jig has a plurality of grooves for fixing the target to a plate-shaped member, the carbon target has a thickness of a height equal to or greater than the top surface of the fixing jig from the groove, and the width of the carbon target is larger than the size of the spot of the laser beam in the width direction.

公开(公告)号：US20190382271A1

公开(公告)日：2019-12-19

申请号：US16488668

申请日：2018-02-23

Applicant: NEC CORPORATION

Inventor： Ryota YUGE

IPC: C01B32/18 ,  B01J23/745

Abstract: A method for producing a carbon nanohorn aggregate including a fibrous carbon nanohorn aggregate, comprising continuously irradiating with laser light a surface of a carbon target containing a metal catalyst such as iron, wherein a laser irradiation position is moved at a constant speed so that a power density of the laser light with which the surface of the carbon target is irradiated is generally constant, and irradiation is moved to a region adjacent to a region previously irradiated with the laser light, in a direction different from a moving and traveling direction of the laser irradiation position at an interval equal to or more than a width of a degradation region formed around the region irradiated with the laser light

公开(公告)号：US20190189358A1

公开(公告)日：2019-06-20

申请号：US16327664

申请日：2017-08-04

Applicant: NEC CORPORATION

Inventor： Ryota YUGE

IPC: H01G5/011 ,  G01B7/16 ,  G01L1/14 ,  H05K1/02

CPC classification number: H01G5/011 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/15 ,  G01B7/22 ,  G01L1/146 ,  H01B5/14 ,  H01C7/00 ,  H01C17/065 ,  H01G11/36 ,  H05K1/0277

Abstract: Provided are: a flexible electrode in which an increase in resistance change rate caused by repeated stretch is reduced; a sensor element comprising the flexible electrode; and a strain sensor, a pressure sensor, and a temperature sensor each comprising the sensor element, wherein the flexible electrode comprises: an insulating flexible substrate; and an electrode film comprising a fibrous carbon nanohorn aggregate and being laminated on the flexible substrate.

公开(公告)号：US20190111409A1

公开(公告)日：2019-04-18

申请号：US16085217

申请日：2017-02-28

Applicant: NEC CORPORATION

Inventor： Ryota YUGE

IPC: B01J20/20 ,  C01B32/18 ,  B01J20/28 ,  B01J20/30

Abstract: An adsorption material which includes a carbon nanohorn aggregate in which a plurality of single-walled carbon nanohorns aggregate in a fibrous state, particularly coexisting a globular carbon nanohorn aggregate and some of the single-walled carbon nanohorns included in the carbon nanohorn aggregate have an opening portion, is used. The adsorption material including such a fibrous carbon nanohorn aggregate is produced by a method including: preparing an inert gas atmosphere, a nitrogen gas atmosphere or a mixed atmosphere in a vessel in which a catalyst-containing carbon target is placed; and evaporating the target to obtain a carbon nanohorn aggregate including a fibrous carbon nanohorn aggregate in which a plurality of single-walled carbon nanohorns aggregate in a fibrous state.

公开(公告)号：US20180105425A1

公开(公告)日：2018-04-19

申请号：US15556342

申请日：2016-03-04

Applicant: NEC CORPORATION

Inventor： Ryota YUGE

IPC: C01B32/18 ,  B01J21/18 ,  B01J37/34 ,  B82Y30/00 ,  B82Y40/00 ,  H01M4/90

Abstract: Objects of the present invention is to provide a carbon nanohorn aggregate excellent in imparting conductivity, and to provide a carbon nanohorn aggregate excellent in both the impartation of conductivity and the dispersibility. The present invention provides a fibrous carbon nanohorn aggregate in which a plurality of single-walled carbon nanohorns are aggregated in a fibrous state. The fibrous carbon nanohorn aggregate is excellent in imparting conductivity, and can be produced by the same process as production of globular carbon nanohorn aggregates, whereby the carbon nanohorn aggregates containing fibrous ones and globular ones mixed therewith can satisfy both high conductivity and high dispersibility.

公开(公告)号：US20170301917A1

公开(公告)日：2017-10-19

申请号：US15511448

申请日：2015-09-08

Applicant: NEC Corporation

Inventor： Ryota YUGE

IPC: H01M4/587 ,  H01M4/133 ,  H01M10/0525 ,  H01M4/04 ,  H01M4/02

CPC classification number: H01M4/587 ,  C01B32/20 ,  H01M4/0471 ,  H01M4/133 ,  H01M4/366 ,  H01M4/625 ,  H01M10/0525 ,  H01M2004/027 ,  Y02T10/7011

Abstract: A negative electrode active material for a lithium ion secondary battery, the negative electrode active material including a porous carbon, wherein, in the porous carbon, a pore having a diameter of 20 nm to 1 μm is formed in the surface of a carbon matrix and a nanopore communicating with the pore and having a diameter of 15 nm or smaller is formed inside the carbon matrix.

公开(公告)号：US20170200941A1

公开(公告)日：2017-07-13

申请号：US15315491

申请日：2015-06-03

Applicant: NEC Corporation

Inventor： Ryota YUGE

IPC: H01M4/36 ,  C04B35/626 ,  C04B41/50 ,  H01M4/62 ,  H01M4/133 ,  H01M4/587 ,  H01M10/0525 ,  H01M4/48 ,  C04B35/80 ,  C04B41/00

CPC classification number: H01M4/364 ,  C04B35/532 ,  C04B35/6268 ,  C04B35/63496 ,  C04B35/80 ,  C04B35/806 ,  C04B41/009 ,  C04B41/5001 ,  C04B2235/3418 ,  C04B2235/422 ,  C04B2235/48 ,  C04B2235/52 ,  C04B2235/5248 ,  C04B2235/5288 ,  C04B2235/5436 ,  C04B2235/5454 ,  C04B2235/614 ,  C04B2235/616 ,  C04B2235/656 ,  C04B2235/658 ,  C04B2235/96 ,  H01M4/0428 ,  H01M4/0471 ,  H01M4/13 ,  H01M4/133 ,  H01M4/366 ,  H01M4/483 ,  H01M4/587 ,  H01M4/625 ,  H01M10/0525 ,  Y02T10/7011

Abstract: In order to provide a negative electrode material for a lithium-ion secondary battery that achieves both of high capacity and rapid charge/discharge performance, a nano-carbon composite is used as the negative electrode material. The nano-carbon composite 7 includes: low-crystallinity carbon 1; a composite in which a mixture of silicon oxide 2 containing silicon nanoparticles 3 and fibrous carbon 4 are partially or entirely coated with a carbon coating 5; and carbon nanohorn aggregates 6 supported on a surface of the composite.

公开(公告)号：US20160218360A1

公开(公告)日：2016-07-28

申请号：US14913892

申请日：2014-08-19

Applicant: NEC CORPORATION ,  TANAKA CHEMICAL CORPORATION

Inventor： Kentaro NAKAHARA ,  Ryota YUGE ,  Noriyuki TAMURA ,  Sadanori HATTORI ,  Kentaro KURATANI ,  Kyousuke DOUMAE ,  Hideka SHIBUYA ,  Mitsuharu TABUCHI

IPC: H01M4/505 ,  H01M4/525 ,  H01M10/0525

CPC classification number: H01M4/366 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/028 ,  Y02T10/7011

Abstract: There is provided a lithium-iron-manganese-based composite oxide capable of providing a lithium-ion secondary battery which has a high capacity retention rate in charge/discharge cycles and in which the generation of a gas caused by charge/discharge cycles is reduced. A lithium-iron-manganese-based composite oxide having a layered rock-salt structure, wherein at least a part of the surface of a lithium-iron-manganese-based composite oxide represented by the following formula (1) is coated with an inorganic material: LixM1(y-p)MnpM2(z-p)FeqO(2-δ) (1) (wherein 1.05≦x≦1.32, 0.33≦y≦0.63, 0.06≦z≦0.50, 0

Abstract translation: 提供一种锂 - 铁 - 锰基复合氧化物，其能够提供在充电/放电循环中具有高容量保持率的锂离子二次电池，并且其中由充电/放电循环引起的气体的产生减少 。 一种具有层状岩盐结构的锂 - 铁 - 锰基复合氧化物，其中由下式（1）表示的锂 - 铁 - 锰基复合氧化物的至少一部分表面被无机 材料：LixM1（yp）MnpM2（zp）FeqO（2-δ）（1）（其中1.05≤x≤1.32,0.33≤y≤0.63,0.06≤z≤0.50,0≤p≤0.63,0.06≤q≤0.50 ，0≤δ≤0.80，y≥p，z≥q; M1为选自Ti和Zr中的至少一种元素; M2为选自Co，Ni和Mn中的至少一种元素）。