ENCLOSED LEAD BATTERY−USE SEPARATOR AND ECLOSED LEAD BATTERY

Title:

ENCLOSED LEAD BATTERY−USE SEPARATOR AND ECLOSED LEAD BATTERY

Document Type and Number:

WIPO Patent Application WO/2003/028126

Kind Code:

A1

Abstract:

An enclosed lead battery−use separator comprising fine glass fibers (1) as a main component, inorganic powder (3), beaten natural pulp (2) and heat fusing organic fibers (4). The heat fusing organic fibers (4) each have a size of up to 1.5 d (denier) and a fiber length of at least 1 mm, and is contained in an amount of 3−15 wt.%. The separator is excellent in short−circuiting resistance between the anode plate and the cathode plate of a battery including electrochemical and mechanical short−circuitings such as lead infiltration short−circuiting, excellent in bending strength, resistance against repeated bending and tear strength, easily formed into a bag−like separator, and free from a problem of an active matter coming off from a side portion. This separator improves the output, capacity, stability and life of an enclosed lead battery.

Inventors:

SUGIYAMA SHOJI (JP)
ASADA ATSUSHI (JP)
NAGAKUBO SHUHEI (JP)

Application Number:

PCT/JP2002/009428

Publication Date:

April 03, 2003

Filing Date:

September 13, 2002

Export Citation:

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Assignee:

NIPPON SHEET GLASS CO LTD (JP)
SUGIYAMA SHOJI (JP)
ASADA ATSUSHI (JP)
NAGAKUBO SHUHEI (JP)

International Classes:

H01M50/437; H01M10/06; H01M10/34; (IPC1-7): H01M2/16; H01M10/04

Domestic Patent References:

WO2000055930A1

2000-09-21

Foreign References:

JPH11250889A	1999-09-17
JPH11297293A	1999-10-29
JP2001084986A	2001-03-30
JPH09199100A	1997-07-31

Other References: