公开(公告)号：US09711786B2

公开(公告)日：2017-07-18

申请号：US14433842

申请日：2014-02-25

Applicant: SEKISUI CHEMICAL CO., LTD.

Inventor： Shoji Nozato ,  Akira Nakasuga ,  Akihiko Fujiwara ,  Hiroshi Yoshitani ,  Yasushi Uematsu ,  Shotaro Kobaru

IPC: B82Y30/00 ,  H01M4/36 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/38 ,  H01M4/587 ,  H01M4/62 ,  H01M4/1395 ,  H01M4/02

CPC classification number: H01M4/364 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/366 ,  H01M4/38 ,  H01M4/386 ,  H01M4/587 ,  H01M4/622 ,  H01M4/623 ,  H01M4/624 ,  H01M4/625 ,  H01M2004/027

Abstract: There is provided a method for producing a negative electrode material for lithium ion secondary batteries that is easily produced and is less likely to cause deterioration in charge and discharge cycle characteristics. A method for producing a negative electrode material for lithium ion secondary batteries, comprises steps of heating a raw material composition comprising resin-retained partially exfoliated graphite having a structure in which graphene is partially exfoliated and Si particles to dope the partially exfoliated graphite with the Si particles, the partially exfoliated graphite being obtained by pyrolyzing a resin in a composition in which the resin is fixed to graphite or primary exfoliated graphite, thereby exfoliating the graphite or primary exfoliated graphite while allowing part of the above resin to remain; providing a composition comprising the above partially exfoliated graphite doped with the Si particles, a binder resin, and a solvent; and shaping the above composition.

公开(公告)号：US20200276581A1

公开(公告)日：2020-09-03

申请号：US16759974

申请日：2018-11-21

Applicant: SEKISUI CHEMICAL CO., LTD.

Inventor： Kazuhiko Imamura ,  Nobuhiko Inui ,  Shotaro Kobaru ,  Takamasa Kouno ,  Tatsunori Takamatsu ,  Ryoma Ishii ,  Ryosuke Takahashi ,  Tsutomu Nakamura

IPC: B01L3/00

Abstract: Provided is a micro-fluid chip that enables reducing contamination between branch channels, has a relatively simple channel structure and facilitates miniaturization. A micro-fluid chip 1 having a channel structure 3 through which a fluid is delivered, wherein the channel structure 3 includes: a main channel 4 having an inflow port 5 and an outflow port 6; a plurality of branch channels 11 to 13 connected to the main channel 4, each branch channel having an inflow end on a side connected to the main channel 4 and an outflow end that is an end portion on an opposite side to the inflow end; and a sub-branch channel 14 connected to the main channel 4 between at least one pair of adjacent branch channels 11 and 12 among the plurality of branch channels 11 to 13, the sub-branch channel 14 having an inflow end on a side connected to the main channel 4.

公开(公告)号：US20190240655A1

公开(公告)日：2019-08-08

申请号：US16329866

申请日：2017-09-07

Applicant: SEKISUI CHEMICAL CO., LTD.

Inventor： Tatsunori Takamatsu ,  Nobuhiko Inui ,  Shotaro Kobaru ,  Takamasa Kouno

IPC: B01L3/00 ,  F04B43/06

CPC classification number: B01L3/50273 ,  B01L2300/0819 ,  B01L2300/0848 ,  B01L2300/0861 ,  B01L2400/0406 ,  B81B3/00 ,  F04B43/06 ,  G01N35/08 ,  G01N37/00

Abstract: The present invention provides a microchip that allows to highly accurately control a transported amount of a fluid. The microchip 1 includes: a container 3 encapsulating a liquid reagent X (fluid) filled in the container 3; and a substrate 2 including an accommodation section 4 in which the container 3 is placed. The accommodation section 4 includes a top surface and a bottom surface 2b. The accommodation section 4 is opened to the top surface of the substrate 2. At least a part of the inflow passage 5 that is connected to the accommodation section 4 and into which a medium for transporting the liquid reagent X flows is provided on the substrate 2. At least a part of the outflow passage 6 that is connected to the accommodation section 4 and through which the liquid reagent X flows out is provided on the substrate 2. The microchip 1 further includes a sheet member 7 that is provided on the top surface of the substrate 2 so as to close the opening of the accommodation section 4.

公开(公告)号：US20150270534A1

公开(公告)日：2015-09-24

申请号：US14433842

申请日：2014-02-25

Applicant: SEKISUI CHEMICAL CO., LTD.

Inventor： Shoji Nozato ,  Akira Nakasuga ,  Akihiko Fujiwara ,  Hiroshi Yoshitani ,  Yasushi Uematsu ,  Shotaro Kobaru

IPC: H01M4/36 ,  H01M4/62 ,  H01M4/587 ,  H01M4/133

CPC classification number: H01M4/364 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/366 ,  H01M4/38 ,  H01M4/386 ,  H01M4/587 ,  H01M4/622 ,  H01M4/623 ,  H01M4/624 ,  H01M4/625 ,  H01M2004/027

Abstract: There is provided a method for producing a negative electrode material for lithium ion secondary batteries that is easily produced and is less likely to cause deterioration in charge and discharge cycle characteristics. A method for producing a negative electrode material for lithium ion secondary batteries, comprises steps of heating a raw material composition comprising resin-retained partially exfoliated graphite having a structure in which graphene is partially exfoliated and Si particles to dope the partially exfoliated graphite with the Si particles, the partially exfoliated graphite being obtained by pyrolyzing a resin in a composition in which the resin is fixed to graphite or primary exfoliated graphite, thereby exfoliating the graphite or primary exfoliated graphite while allowing part of the above resin to remain; providing a composition comprising the above partially exfoliated graphite doped with the Si particles, a binder resin, and a solvent; and shaping the above composition.

Abstract translation: 提供一种易于制造并且不太可能导致充放电循环特性劣化的锂离子二次电池用负极材料的制造方法。 一种锂离子二次电池用负极材料的制造方法，其特征在于，包括：将具有石墨烯部分剥离的结构的树脂保留部分剥离石墨和Si粒子加热至部分脱落石墨与Si 颗粒，通过将树脂固定在石墨或初级剥离石墨上的组合物中热解树脂得到的部分剥离石墨，从而使石墨或初级剥离石墨脱落，同时允许保留上述树脂的一部分; 提供包含掺杂有Si颗粒的上述部分剥离的石墨，粘合剂树脂和溶剂的组合物; 并成型上述组合物。

公开(公告)号：US20140335423A1

公开(公告)日：2014-11-13

申请号：US14363896

申请日：2012-12-07

Applicant: Sekisui Chemical Co., Ltd.

Inventor： Shotaro Kobaru ,  Yuki Sakurai

IPC: H01M2/16 ,  B29C71/02 ,  H01M2/14 ,  B29C47/00

CPC classification number: H01M2/1653 ,  B29C47/0021 ,  B29C47/0057 ,  B29C71/02 ,  B29C2071/022 ,  B29K2023/12 ,  B29L2031/3468 ,  C08J5/18 ,  C08J2323/10 ,  H01M2/145

Abstract: The present invention provides a propylene-based resin microporous film which has excellent electrolyte solution retention property, and can provide a lithium ion battery in which a decrease in discharge capacity is highly reduced even after repeated charge and discharge.The propylene-based resin microporous film is a propylene-based resin microporous film having micropores, wherein a propylene-based resin having a weight average molecular weight of 250,000 to 500,000, a melting point of 160 to 170° C., and a pentad fraction of 96% or more is contained, the surface aperture ratio is 27 to 42%, the ratio of a surface aperture ratio to a porosity is 0.6 or less, and the degree of gas permeability is 50 to 400 s/100 mL.

Abstract translation: 本发明提供了具有优异的电解液保留性能的丙烯类树脂微多孔膜，并且可以提供即使在重复充放电之后放电容量的降低也显着降低的锂离子电池。 丙烯类树脂微多孔膜是具有微孔的丙烯类树脂微孔膜，其中重均分子量为250,000〜500,000，熔点为160〜170℃的丙烯类树脂和五元组分数 为96％以上，表面开口率为27〜42％，表面开口率与孔隙率的比例为0.6以下，透气度为50〜400s / 100mL。

公开(公告)号：US11291993B2

公开(公告)日：2022-04-05

申请号：US16759974

申请日：2018-11-21

Applicant: SEKISUI CHEMICAL CO., LTD.

Inventor： Kazuhiko Imamura ,  Nobuhiko Inui ,  Shotaro Kobaru ,  Takamasa Kouno ,  Tatsunori Takamatsu ,  Ryoma Ishii ,  Ryosuke Takahashi ,  Tsutomu Nakamura

IPC: B01L3/00

Abstract: Provided is a micro-fluid chip that enables reducing contamination between branch channels, has a relatively simple channel structure and facilitates miniaturization. A micro-fluid chip (1) having a channel structure (3) through which a fluid is delivered, wherein the channel structure (3) includes: a main channel (4) having an inflow port (5) and an outflow port (6); a plurality of branch channels (11) to (13) connected to the main channel (4), each branch channel having an inflow end on a side connected to the main channel (4) and an outflow end that is an end portion on an opposite side to the inflow end; and a sub-branch channel (14) connected to the main channel (4) between at least one pair of adjacent branch channels (11) and (12) among the plurality of branch channels (11) to (13), the sub-branch channel (14) having an inflow end on a side connected to the main channel (4).

公开(公告)号：US20210121881A1

公开(公告)日：2021-04-29

申请号：US16617315

申请日：2018-05-25

Applicant: SEKISUI CHEMICAL CO., LTD.

Inventor： Kazuhiko Imamura ,  Nobuhiko Inui ,  Shotaro Kobaru ,  Takamasa Kouno ,  Tatsunori Takamatsu ,  Ryoma Ishii

IPC: B01L3/00 ,  G01N35/08

Abstract: Provided is a micro fluid device capable of reliably performing measurement of a fluid into a branched flow path and dispensing of a predetermined amount of a fluid into a plurality of the branched flow paths. A micro fluid device is provided in which a micro flow path 11 has a main flow path 12 and branched flow paths 15 to 17, the main flow path 12 has a first expanded flow path portion 12d, the branched flow paths 15 to 17 have second expanded flow path portions 15c to 17c, and a difference (TB−TE) between a TB value as a T value in the branched flow path and a TE value as a T value in the main flow path is 5 or more, with respect to a T value represented by the following formula (1): T={1/(x2·R)}·(θ/90)  Formula (1) where x is a flow path width at a starting point of the first, second expanded flow path portion; R is a radius of curvature of curved surface portion in the first, second expanded flow path portion; and θ indicates a central angle of a circular arc with a radius of curvature R having the starting point of the first, second expanded flow path portion and an end point of the expanded flow path portion as end portions.

公开(公告)号：US09748545B2

公开(公告)日：2017-08-29

申请号：US14363896

申请日：2012-12-07

Applicant: Sekisui Chemical Co., Ltd.

Inventor： Shotaro Kobaru ,  Yuki Sakurai

IPC: H01M2/16 ,  H01M2/14 ,  B29C47/00 ,  B29C71/02 ,  C08J5/18 ,  B29L31/34 ,  B29K23/00

CPC classification number: H01M2/1653 ,  B29C47/0021 ,  B29C47/0057 ,  B29C71/02 ,  B29C2071/022 ,  B29K2023/12 ,  B29L2031/3468 ,  C08J5/18 ,  C08J2323/10 ,  H01M2/145

Abstract: The present invention provides a propylene-based resin microporous film which has excellent electrolyte solution retention property, and can provide a lithium ion battery in which a decrease in discharge capacity is highly reduced even after repeated charge and discharge. The propylene-based resin microporous film is a propylene-based resin microporous film having micropores, wherein a propylene-based resin having a weight average molecular weight of 250,000 to 500,000, a melting point of 160 to 170° C., and a pentad fraction of 96% or more is contained, the surface aperture ratio is 27 to 42%, the ratio of a surface aperture ratio to a porosity is 0.6 or less, and the degree of gas permeability is 50 to 400 s/100 mL.