Separator for battery, laminated separator, lithium ion secondary battery, and battery pack

Invention Grant

US10944086B2 Separator for battery, laminated separator, lithium ion secondary battery, and battery pack 有权

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Patent Title: Separator for battery, laminated separator, lithium ion secondary battery, and battery pack
Application No.: US15519420

Application Date: 2015-10-16
Publication No.: US10944086B2

Publication Date: 2021-03-09
Inventor: Hiroya Umeyama , Harunari Shimamura
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Applicant Address: JP Toyota
Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
Current Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
Current Assignee Address: JP Toyota
Agency: Sughrue Mion, PLLC
Priority: JPJP2014-212929 20141017
International Application: PCT/IB2015/001913 WO 20151016
International Announcement: WO2016/059466 WO 20160421
Main IPC: H01M2/16
IPC: H01M2/16 ; H01M10/0525 ; H01M10/0587

Separator for battery, laminated separator, lithium ion secondary battery, and battery pack

Abstract:

Provided is a separator for a battery in which, when a ratio of a total length of line segments (Sa), in which an arbitrary straight line (La) intersects with resin fibers (4), to a total length of the straight line (La) on a cross-section of the separator in a thickness direction (TD) is represented by s (%) and when a thickness of the separator is represented by d (μm), 0

Public/Granted literature

US20170244086A1 SEPARATOR FOR BATTERY, LAMINATED SEPARATOR, LITHIUM ION SECONDARY BATTERY, AND BATTERY PACK Public/Granted day:2017-08-24

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