公开(公告)号：US20180062179A1

公开(公告)日：2018-03-01

申请号：US15556993

申请日：2016-05-10

Applicant: SEKISUI CHEMICAL CO., LTD.

Inventor： Takuya WADA ,  Hiroki MASUDA ,  Naoki SASAGAWA ,  Akira NAKASUGA ,  Shoji NOZATO

IPC: H01M4/62 ,  H01M10/0525 ,  H01M4/131 ,  H01M4/36 ,  H01M4/525 ,  C01G51/00 ,  C01B32/05

CPC classification number: H01M4/625 ,  C01B32/05 ,  C01G51/42 ,  C01P2006/40 ,  H01M4/131 ,  H01M4/364 ,  H01M4/525 ,  H01M4/622 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/028

Abstract: Provided is a carbonaceous material capable of enhancing the initial charge and discharge efficiency and the cycle characteristics of lithium ion secondary batteries. The carbonaceous material is used as an electrode material for a lithium ion secondary battery and has a volume resistivity of 0.7 Ω·cm or less as measured at a pressure of 13 MPa in the form of a mixture of 5 wt % of the carbonaceous material and 95 wt % of lithium cobaltate.

公开(公告)号：US20230065099A1

公开(公告)日：2023-03-02

申请号：US17792462

申请日：2021-03-30

Applicant: SEKISUI CHEMICAL CO., LTD.

Inventor： Kazuhiko NAKAYAMA ,  Hiroki MASUDA

IPC: B32B17/10

Abstract: The interlayer film for laminated glass according to the present invention includes at least one graphene-based material selected from the group consisting of graphene and graphite.

公开(公告)号：US20210265633A1

公开(公告)日：2021-08-26

申请号：US17252526

申请日：2019-06-19

Applicant: SEKISUI CHEMICAL CO., LTD.

Inventor： Kazuho UCHIDA ,  Akihiko FUJIWARA ,  Hiroki MASUDA ,  Yuuki SAWADA

IPC: H01M4/62 ,  C01B32/182

Abstract: There is provided a carbon material capable of enhancing the capacity of a power storage device and battery characteristics such as rate characteristics and cycle characteristics. The carbon material is one having a graphene layered structure, in which: a BET specific surface area of the carbon material is 1 m2/g or more and 25 m2/g or less; and when a particle concentration of the carbon material and an integrated value of particle areas of the carbon material are measured by a flow-type particle image analyzer using an N-methyl-2-pyrrolidone solution containing 20 ppm of the carbon material, the particle concentration of the carbon material is 3,000 particles/μL or more and 50,000 particles/μL or less, and the integrated value of the particle areas of the carbon material is 1,000 mm2/mg or more and 10,000 mm2/mg or less.

公开(公告)号：US20210184219A1

公开(公告)日：2021-06-17

申请号：US17052681

申请日：2019-04-24

Applicant: SEKISUI CHEMICAL CO., LTD.

Inventor： Yuuki SAWADA ,  Hiroki MASUDA

IPC: H01M4/66 ,  H01M10/0562 ,  H01M6/18

Abstract: A current collector layer for an all-solid-state battery is provided with which a good electron path can be easily formed and rate characteristic can be improved. A current collector layer 5 for an all-solid-state battery 1, the current collector layer 5 including: a carbon material; and a solid electrolyte, the all-solid-state battery 1 including a group 1 or 2 ion conductive solid electrolyte layer 2, the carbon material being mixed with Si at a weight ratio of 1:1 to produce a mixture, the mixture having an X-ray diffraction spectrum having a ratio of a peak height a to a peak height b, a/b, of 0.2 or more and 10.0 or less as being measured, the peak height a being highest in a range of 2θ of 24° or more and less than 28°, and the peak height b being highest in a range of 2θ of 28° or more and less than 30°.