公开(公告)号：US20220006080A1

公开(公告)日：2022-01-06

申请号：US17288785

申请日：2019-10-25

Applicant: GS Yuasa International Ltd.

Inventor： Ryo HARADA ,  Akira KISHIMOTO

IPC: H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  H01M10/0568

Abstract: A nonaqueous electrolyte secondary battery including a positive electrode, a negative electrode, and a nonaqueous electrolyte, the positive electrode containing, as a positive active material, a lithium transition metal composite oxide having an α-NaFeO2 type crystal structure, a molar ratio of Li to Me, Li/Me of more than 1, Me representing transition metal elements including Ni and Mn or including Ni, Mn, and Co, and a molar ratio of Mn to Me, Mn/Me of 0.40 or more and 0.65 or less, and the nonaqueous electrolyte containing, as an electrolyte salt, LiPF6 and a lithium imide salt.

公开(公告)号：US20240339663A1

公开(公告)日：2024-10-10

申请号：US18713249

申请日：2022-11-28

Applicant: GS Yuasa International Ltd.

Inventor： Akira KISHIMOTO ,  Takashi OKUBO

IPC: H01M10/0567 ,  H01M4/02 ,  H01M4/525

CPC classification number: H01M10/0567 ,  H01M4/525 ,  H01M2004/028 ,  H01M2300/0025

Abstract: A nonaqueous electrolyte energy storage device according to an aspect of the present invention has an end-of-discharge voltage of 3.2 V or higher in normal use. and includes a nonaqueous electrolyte containing sulfates including a plurality of sulfur atoms in one molecule.

公开(公告)号：US20180233777A1

公开(公告)日：2018-08-16

申请号：US15771181

申请日：2016-11-02

Applicant: MITSUI CHEMICALS, INC. ,  GS YUASA INTERNATIONAL LTD.

Inventor： Masataka MIYASATO ,  Takashi HAYASHI ,  Satoko FUJIYAMA ,  Akira KISHIMOTO ,  Hiroe NAKAGAWA

IPC: H01M10/0567 ,  C07F5/04

CPC classification number: H01M10/0567 ,  C07F5/04 ,  H01M10/0525 ,  H01M2300/0025

Abstract: A non-aqueous electrolyte solution for a secondary battery, including a boron compound represented by Formula (1). In Formula (1), R represents an alkyl group having from 1 to 12 carbon atoms, an alkenyl group having from 2 to 12 carbon atoms, or a group represented by Formula (2). In Formula (2), each of R1 to R3 independently represents a hydrogen atom, a halogen atom, an alkyl group having from 1 to 12 carbon atoms, an alkenyl group having from 2 to 12 carbon atoms, or an aryl group having from 6 to 12 carbon atoms, and * represents a bonding site with an oxygen atom in Formula (1).

公开(公告)号：US20210257665A1

公开(公告)日：2021-08-19

申请号：US17252765

申请日：2019-06-19

Applicant: GS Yuasa International Ltd.

Inventor： Hiromasa MURAMATSU ,  Shinya OTANI ,  Ryo HARADA ,  Akira KISHIMOTO

IPC: H01M10/0568 ,  H01M10/0525 ,  H01M10/0569 ,  H01M4/525 ,  H01M4/505 ,  H01M10/44

Abstract: A nonaqueous electrolyte secondary battery including a positive electrode, a negative electrode, and a nonaqueous electrolyte, in which the positive electrode includes, as an active material, a lithium-transition metal composite oxide that has an α-NaFeO2-type crystal structure, and is represented by the general formula Li1+αMe1−αO2 (0