COLLECTOR FOR BIPOLAR LITHIUM ION SECONDARY BATTERIES, AND BIPOLAR LITHIUM ION SECONDARY BATTERY

Title:

COLLECTOR FOR BIPOLAR LITHIUM ION SECONDARY BATTERIES, AND BIPOLAR LITHIUM ION SECONDARY BATTERY

Document Type and Number:

WIPO Patent Application WO/2014/080853

Kind Code:

A1

Abstract:

A collector for bipolar lithium ion secondary batteries, which comprises a conductive polyimide layer that is obtained by dispersing a conductivity-imparting agent in a polyimide resin that is obtained by imidizing a polyamide acid that is obtained by reacting at least one tetracarboxylic acid dianhydride component selected from among biphenyl tetracarboxylic acid dianhydride, 3,3',4,4'-benzophenone tetracarboxylic acid dianhydride, pyromellitic acid dianhydride and [isopropylidene bis(p-phenyleneoxy)]diphthalic acid dianhydride and at least one diamine component selected from among oxydianiline, phenylenediamine and 2,2-bis[4-(4-aminophenoxy)phenyl]propane. This collector for bipolar lithium ion secondary batteries has excellent electrolyte solution solvent blocking performance, and a bipolar lithium ion secondary battery having high reliability can be obtained using this collector for bipolar lithium ion secondary batteries.

Inventors:

KIKUCHI TAKASHI
YANAGIDA MASAMI
ITO TAKASHI
OGAWA KOHEI
OKU SATOSHI
WAKABAYASHI KEISUKE
WAKI NORIHISA
MUROYA YUJI
SHIMOIDA YOSHIO
ISHIMOTO SEIJI
MATSUNO TOMOHISA

Application Number:

PCT/JP2013/080981

Publication Date:

May 30, 2014

Filing Date:

November 18, 2013

Export Citation:

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Assignee:

KANEKA CORP (JP)
NISSAN MOTOR (JP)

International Classes:

H01M4/66; H01M4/64; H01M10/052; H01M10/0585

Foreign References:

JP2012204182A	2012-10-22
JP2011210635A	2011-10-20
JP2009238659A	2009-10-15
JP2008034352A	2008-02-14
JP2012003918A	2012-01-05
JP2011181520A	2011-09-15
JP2000200619A	2000-07-18

Other References: