公开(公告)号：US11955662B2

公开(公告)日：2024-04-09

申请号：US16647477

申请日：2018-11-19

Applicant: ASAHI KASEI KABUSHIKI KAISHA ,  CELGARD, LLC

Inventor： Shinya Hamasaki ,  Masaki Takahashi ,  Shohei Mori ,  Yoshiyuki Ishii ,  Kenji Ebara ,  Changqing Adams

IPC: H01M50/491 ,  B29C48/00 ,  B29C48/08 ,  B29C71/02 ,  B29K23/00 ,  B29L31/00 ,  B29L31/34 ,  H01M50/406 ,  H01M50/417 ,  H01M50/44

CPC classification number: H01M50/491 ,  B29C48/0018 ,  B29C48/08 ,  B29C71/02 ,  H01M50/406 ,  H01M50/417 ,  H01M50/44 ,  B29C2071/022 ,  B29K2023/12 ,  B29L2031/3468 ,  B29L2031/755

Abstract: The present invention provides (I) a dry-stretched microporous membrane and a separator for an electric storage device excellent in balance among the required performances such as product safety, charge/discharge characteristics, dimension stability, energy cost, consideration to the environment, etc., (II) a separator for an electric storage device superior in product safety obtained by controlling a puncture depth of a microporous membrane comprised in the separator for an electric storage device, or/and (III) a dry-stretched microporous membrane and a separator for an electric power storage device excellent in product safety realized by controlling a porosity and a puncture strength of a thin microporous membrane.

公开(公告)号：US11981772B2

公开(公告)日：2024-05-14

申请号：US17275755

申请日：2019-09-10

Applicant: ASAHI KASEI KABUSHIKI KAISHA

Inventor： Chihiro Suemitsu ,  Hitoshi Mizomoto ,  Kenji Ebara ,  Tatsuya Suzuki

IPC: C08G2/04 ,  C08G2/06 ,  C08G2/10 ,  C08G2/18

CPC classification number: C08G2/10 ,  C08G2/04 ,  C08G2/06 ,  C08G2/18 ,  C08G2650/22 ,  C08G2650/38

Abstract: Polyoxymethylene, where a ratio of a low molecular weight component having a molecular weight of 10,000 or less in a molecular weight distribution is 7.0% or less of the total, and the molecular weight distribution is obtained by measurement by gel permeation chromatography (GPC) using polymethyl methacrylate (PMMA) as a standard substance.

公开(公告)号：US20210367309A1

公开(公告)日：2021-11-25

申请号：US16647477

申请日：2018-11-19

Applicant: ASAHI KASEI KABUSHIKI KAISHA ,  CELGARD, LLC

Inventor： Shinya Hamasaki ,  Masaki Takahashi ,  Shohei Mori ,  Yoshiyuki ishii ,  Kenji Ebara ,  Changqing Adams

IPC: H01M50/491 ,  H01M50/406 ,  H01M50/417 ,  H01M50/44 ,  B29C48/00 ,  B29C71/02 ,  B29C48/08

Abstract: The present invention provides (I) a dry-stretched microporous membrane and a separator for an electric storage device excellent in balance among the required performances such as product safety, charge/discharge characteristics, dimension stability, energy cost, consideration to the environment, etc., (II) a separator for an electric storage device superior in product safety obtained by controlling a puncture depth of a microporous membrane comprised in the separator for an electric storage device, or/and (III) a dry-stretched microporous membrane and a separator for an electric power storage device excellent in product safety realized by controlling a porosity and a puncture strength of a thin microporous membrane.