公开(公告)号：US20180351199A1

公开(公告)日：2018-12-06

申请号：US15778905

申请日：2016-10-31

Applicant: NEC CORPORATION

Inventor： Katsumi MAEDA ,  Sadanori HATTORI

IPC: H01M10/058 ,  H01M4/505 ,  H01M4/525 ,  H01M4/583 ,  H01M4/38 ,  H01M4/66 ,  H01M4/36 ,  H01M10/0569 ,  H01M10/0525

CPC classification number: H01M10/058 ,  H01M4/366 ,  H01M4/386 ,  H01M4/505 ,  H01M4/525 ,  H01M4/58 ,  H01M4/583 ,  H01M4/661 ,  H01M10/0525 ,  H01M10/0569 ,  H01M10/0585 ,  H01M2004/027 ,  H01M2004/028 ,  Y02E60/122 ,  Y02T10/7011

Abstract: An object of the present invention is to provide a positive electrode active substance capable of suppressing gas generation associated with charge and discharge in a lithium secondary battery, and capable of suppressing gas generation associated with charge and discharge particularly even in cases where the use voltage of the lithium secondary battery is high, a positive electrode and a lithium secondary battery using the positive electrode active substance, and methods for producing these. The present invention is a positive electrode active substance for a lithium secondary battery, comprising a coated positive electrode active substance wherein a surface of a positive electrode active substance is directly coated with lithium metaphosphate.

公开(公告)号：US20180115020A1

公开(公告)日：2018-04-26

申请号：US15560807

申请日：2016-03-02

Applicant: NEC Corporation

Inventor： Katsumi MAEDA

IPC: H01M10/0569 ,  C07C43/12 ,  H01M10/0525 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587 ,  H01M10/42

CPC classification number: H01M10/0569 ,  C07C41/22 ,  C07C43/126 ,  H01M4/131 ,  H01M4/133 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/4235 ,  H01M2300/0034 ,  H01M2300/004

Abstract: A nonaqueous electrolyte solution including a hydrofluoroether compound represented by the following formula (1): [Formula 1] CF3CF2CF2OCHFCF2OR1  (1) wherein R1 represents a difluoromethyl group, a 2,2-difluoroethyl group, a 2,2,2-trifluoroethyl group, a 2,2,3,3,3-pentafluoropropyl group, a 2,2,3,3-tetrafluoropropyl group, a 1,1,1,3,3,3-hexafluoroisopropyl group, a 2,2,3,3,4,4,4-heptafluorobutyl group, a 2,2,3,3,4,4-hexafluorobutyl group, or a 2,2,3,3,4,4,5,5-octafluoropentyl group.

公开(公告)号：US20240327704A1

公开(公告)日：2024-10-03

申请号：US18616357

申请日：2024-03-26

Applicant: NEC Corporation

Inventor： Katsumi MAEDA

IPC: C09K11/07 ,  G01N21/01 ,  G01N21/64 ,  G01N21/84

CPC classification number: C09K11/07 ,  G01N21/6428 ,  C09K2211/182 ,  G01N2021/0181 ,  G01N2021/6439 ,  G01N2021/6463 ,  G01N2021/8466

Abstract: The present invention provides a reagent for detecting methyl salicylate, which is a plant hormone released when a plant is infected with a disease, in the cultivation of plants including agricultural crops, and a method for sensing methyl salicylate using the same, thereby providing a method for detection of pathogen infection in a plant.
A reagent for detecting methyl salicylate, comprising a terbium complex salt having two or more types of counter anions; a methyl salicylate sensor comprising a capture section of methyl salicylate having the reagent and a detection section detecting that methyl salicylate is captured in the capture section; and a method for sensing methyl salicylate using the above reagent to detect methyl salicylate.

公开(公告)号：US20230384219A1

公开(公告)日：2023-11-30

申请号：US18200066

申请日：2023-05-22

Applicant: NEC Corporation

Inventor： Katsumi MAEDA

IPC: G01N21/64

CPC classification number: G01N21/64 ,  G01N2021/6497 ,  C07C233/55

Abstract: Provided is a method for sensing methyl salicylate, which is a plant hormone released when a plant is infected with a disease. One aspect of the present embodiment relates to a method for sensing methyl salicylate, including detecting a reaction product of a terbium-sulfoxide complex represented by the predetermined formula and methyl salicylate.

公开(公告)号：US20190181494A1

公开(公告)日：2019-06-13

申请号：US16321891

申请日：2017-07-14

Applicant: NEC CORPORATION

Inventor： Katsumi MAEDA ,  Qian CHENG

IPC: H01M10/0525 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569 ,  H01M4/525

Abstract: A nonaqueous electrolytic solution comprising a nonaqueous solvent, an electrolyte, lithium difluorophosphate, and a difluoroboron complex compound represented by general formula (1): wherein R1 and R2 each independently represent a substituted or unsubstituted alkyl group having one to six carbon atoms, a substituted or unsubstituted aryl group, a substituted or unsubstituted heteroaryl group, or a substituted or unsubstituted alkoxy group, and R3 represents a hydrogen atom, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heteroaryl group, wherein the content of lithium bis(fluorosulfonyl)imide as the electrolyte is 0 to 80 mol % based on the total amount of moles of the electrolyte.

公开(公告)号：US20150183912A1

公开(公告)日：2015-07-02

申请号：US14456425

申请日：2014-08-11

Applicant: NEC Corporation

Inventor： Katsumi MAEDA ,  Shigeyuki IWASA ,  Kaichiro NAKANO ,  Etsuo HASEGAWA

IPC: C08F222/14 ,  C08F220/32 ,  G03F7/038

CPC classification number: C08F222/14 ,  C07D307/93 ,  C08F20/28 ,  C08F120/28 ,  C08F220/32 ,  G03F7/004 ,  G03F7/0045 ,  G03F7/038 ,  G03F7/0382 ,  G03F7/039 ,  Y10S430/111

Abstract: A photoresist material for lithography using a light of 220 nm or less which comprises at least a polymer represented by the following formula (2) and a photo-acid generator for generating an acid by exposure: wherein R1, R2, R3 and R5 are each a hydrogen atom or a methyl group; R4 is an acid-labile group or one of a specified subset of alicyclic hydrocarbon groups, alicyclic hydrocarbon groups, or hydrocarbon groups; R6 is a hydrogen atom or one of a specified subset of hydrocarbon groups or alicyclic hydrocarbon groups; x, y and z are optional values which meet x+y+z=1, 0

Abstract translation: 一种用于光刻的光致抗蚀剂材料，其使用220nm以下的光，其至少包含由下式（2）表示的聚合物和通过曝光产生酸的光酸发生剂：其中R1，R2，R3和R5各自 氢原子或甲基; R4是酸不稳定基团或脂环族烃基，脂环族烃基或烃基的特定子集之一; R6是氢原子或烃基或脂环烃基的特定子集之一; x，y和z是满足x + y + z = 1,0,0

公开(公告)号：US20130122419A1

公开(公告)日：2013-05-16

申请号：US13687959

申请日：2012-11-28

Applicant: NEC Corporation

Inventor： Katsumi MAEDA ,  Shigeyuki Iwasa ,  Kaichiro Nakano ,  Etsuo Hasegawa

IPC: G03F7/004

CPC classification number: C08F222/14 ,  C07D307/93 ,  C08F20/28 ,  C08F120/28 ,  C08F220/32 ,  G03F7/004 ,  G03F7/0045 ,  G03F7/038 ,  G03F7/0382 ,  G03F7/039 ,  Y10S430/111

Abstract: A photoresist material for lithography using a light of 220 nm or less which comprises at least a polymer represented by the following formula (2) and a photo-acid generator for generating an acid by exposure: wherein R1, R2, R3 and R5 are each a hydrogen atom or a methyl group; R4 is an acid-labile group or one of a specified subset of alicyclic hydrocarbon groups, alicyclic hydrocarbon groups, or hydrocarbon groups; R6 is a hydrogen atom or one of a specified subset of hydrocarbon groups or alicyclic hydrocarbon groups; x, y and z are optional values which meet x+y+z=1, 0

Abstract translation: 一种用于光刻的光致抗蚀剂材料，其使用220nm以下的光，其至少包含由下式（2）表示的聚合物和通过曝光产生酸的光酸发生剂：其中R1，R2，R3和R5各自 氢原子或甲基; R4是酸不稳定基团或脂环族烃基，脂环族烃基或烃基的特定子集之一; R6是氢原子或烃基或脂环烃基的特定子集之一; x，y和z是满足x + y + z = 1,0

公开(公告)号：US20210399300A1

公开(公告)日：2021-12-23

申请号：US17421361

申请日：2020-01-08

Applicant: NEC Corporation

Inventor： Katsumi MAEDA

IPC: H01M4/587 ,  C01B32/198 ,  C01B32/21

Abstract: An object of the present invention is to provide a reduced graphene oxide-graphite composite material capable of improving battery characteristics such as the charge and discharge efficiency and the capacity retention ratio of a lithium ion secondary battery, and a method for producing the same. The present invention relates to a reduced graphene oxide-graphite composite material in which a reduced graphene oxide and a graphite are formed into a composite, wherein the functional group ratio (C—O/C═O) between C—O bond and CO=bond is 3 to 6 as obtained from a C1s spectrum based on surface analysis measured by X-ray photoelectron spectroscopy (XPS).

公开(公告)号：US20190312306A1

公开(公告)日：2019-10-10

申请号：US16307657

申请日：2017-06-13

Applicant: NEC Corporation

Inventor： Noriyuki TAMURA ,  Katsumi MAEDA ,  Qian CHENG

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M4/587 ,  H01M4/36 ,  H01M10/0568 ,  H01M10/0569 ,  H01M4/505 ,  H01M4/525

Abstract: In order to provide a lithium ion secondary battery having both high energy density and an excellent charging-rate characteristic, in the lithium ion secondary battery comprising a positive electrode, a negative electrode and an electrolyte solution, the electrolyte solution comprises 0.5 mol/l or more of Li[(FSO2)2N], 0.5 mol/l or more of LiPF6, and LiPO2F2; and the negative electrode comprises graphite deposited with amorphous carbon or graphite coated with amorphous carbon and having a specific surface area of 4 m2/g or less, as a negative electrode active material.

公开(公告)号：US20190305317A1

公开(公告)日：2019-10-03

申请号：US16339853

申请日：2016-10-06

Applicant: NEC CORPORATION

Inventor： Qian CHENG ,  Katsumi MAEDA ,  Noriyuki TAMURA

IPC: H01M4/62 ,  H01M10/0525 ,  H01M10/0568 ,  H01M4/66 ,  H01M10/0569 ,  H01M10/0567

Abstract: The object of the invention is to provide a new lithium ion battery system that can have both high energy density and fast chargeable capability. The invention provides a lithium ion battery, comprising an anode comprising an anode active material layer on an anode current collector, the anode active material layer having a mass load higher than 60 g/m2, a cathode comprising a cathode active material layer on a cathode current collector, the cathode active material layer having a mass load higher than 100 g/m2, and an electrolytic solution comprising an imide anion based lithium salt and LiPO2F2, wherein at least one of the anode and cathode active material layers comprises a spacer composed of a hard carbon.