公开(公告)号：US20210111463A1

公开(公告)日：2021-04-15

申请号：US16772886

申请日：2018-12-25

Applicant: KURARAY CO., LTD.

Inventor： Tomoki SAKAI ,  Hiroyuki KAWAI ,  Tomohiro HAYAKAWA ,  Toshimichi KUSUNOKI

IPC: H01M50/429 ,  H01M50/44 ,  H01M50/449 ,  H01M6/06 ,  H01G11/52 ,  H01G9/02

Abstract: To provide a separator which has a combination of a preferable air permeability enabling high prevention of internal short circuit and a high retention rate of such an air permeability in an electrolytic solution, and has more improved uniformity of the air permeability.
A separator comprising a porous sheet and cellulose nanofibers, wherein the porous sheet comprises a binder component having the SP value of 11 to 16 (cal/cm3)1/2, and the porous sheet has the cellulose nanofibers at the inside and on the surface thereof, and wherein the cellulose nanofibers are combined with the porous sheet by fusion of the binder component.

公开(公告)号：US20230096613A1

公开(公告)日：2023-03-30

申请号：US17758639

申请日：2020-12-23

Applicant: KURARAY CO., LTD.

Inventor： Tomoki SAKAI ,  Takashi KATAYAMA ,  Hiroyuki KAWAI ,  Masashi NISHIDA ,  Tsugumi YOSHIDA

IPC: D06M11/83 ,  D02G3/04

Abstract: A metal-covered liquid crystal polyester multifilament, comprising: two or more metal-covered liquid crystal polyester monofilaments in which a surface of each liquid crystal polyester monofilament is covered with a metal having a thickness of 0.1 to 20 μm, wherein in a cross-sectional photograph measured by X-ray CT, a percentage of a number of stuck fibers in which the two or more metal-covered liquid crystal polyester monofilaments are stuck is 75% or less with respect to a total number of fibers.