Title:
CURRENT COLLECTION SHEET FOR LEAD STORAGE BATTERY, LEAD STORAGE BATTERY, AND BIPOLAR LEAD STORAGE BATTERY
Document Type and Number:
WIPO Patent Application WO/2022/202443
Kind Code:
A1
Abstract:
Provided is a current collection sheet suitable as a positive electrode current collection plate used by being affixed to a resin substrate surface of a space forming member constituting a bipolar lead storage battery. The positive electrode current collection plate (111a), which is a current collection sheet for a lead storage battery, comprises a rolled sheet which is formed of a lead alloy containing 1.0-1.9 mass% of tin (Sn), and 0.005-0.028 mass% of calcium (Ca), with the remainder consisting of lead (Pb) and inevitable impurities, and which has no holes passing through in the plate surface direction, wherein the number of crystal grains, which have a particle diameter of at least 10 µm and which, in any cross section, are present within a range excluding above and below 10% in the thickness direction of the rolled sheet, is 25-55 per 1 mm2 of the area of the range.
Inventors:
KOIDE AYANO (JP)
YAMADA KEIZO (JP)
SATO ATSUSHI (JP)
KANEKO HIROSHI (JP)
OGIWARA YOSHIAKI (JP)
YAMADA KEIZO (JP)
SATO ATSUSHI (JP)
KANEKO HIROSHI (JP)
OGIWARA YOSHIAKI (JP)
Application Number:
PCT/JP2022/011330
Publication Date:
September 29, 2022
Filing Date:
March 14, 2022
Export Citation:
Assignee:
FURUKAWA BATTERY CO LTD (JP)
FURUKAWA ELECTRIC CO LTD (JP)
FURUKAWA ELECTRIC CO LTD (JP)
International Classes:
H01M4/68
Domestic Patent References:
| WO2013073420A1 | 2013-05-23 |
Foreign References:
| JPS49106431A | 1974-10-09 | |||
| JP2006114236A | 2006-04-27 | |||
| JP2005290421A | 2005-10-20 | |||
| JP2010113913A | 2010-05-20 | |||
| JP6124894B2 | 2017-05-10 | |||
| JP2008210698A | 2008-09-11 | |||
| JP2019067522A | 2019-04-25 | |||
| JP2016177909A | 2016-10-06 |
Attorney, Agent or Firm:
TANAKA Hidetetsu et al. (JP)
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