Title:
SEPARATOR FOR LEAD-ACID BATTERY
Document Type and Number:
WIPO Patent Application WO/2022/149543
Kind Code:
A1
Abstract:
[Problem] To provide a separator for a lead-acid battery, the separator being capable of suppressing electrolyte stratification and of improving battery reliability of the lead-acid battery (an extended lifespan during an idle stop operation, and capacity detection stability). [Solution] A separator for a lead-acid battery comprises: a porous back web; and a plurality of ribs extending from each of the two surfaces of the back web. The separator for a lead-acid battery is characterized in that the ribs, which are on a surface that makes contact with a positive electrode plate, are fractured ribs, wherein the fractured ribs are linear fractured ribs which each have a shape with two or more bend points and which are each bent in a zigzag at two consecutive bend points, or curved fractured ribs that each have one or more inflection points.
Inventors:
KAGEYAMA HIROKI (JP)
SHIDOMI TAKASHI (JP)
ONISHI MASAKI (JP)
SHIDOMI TAKASHI (JP)
ONISHI MASAKI (JP)
Application Number:
PCT/JP2021/048800
Publication Date:
July 14, 2022
Filing Date:
December 28, 2021
Export Citation:
Assignee:
ENTEK ASIA INC (JP)
International Classes:
H01M10/12; H01M50/463
Foreign References:
| JP2019517713A | 2019-06-24 | |||
| JP2005197145A | 2005-07-21 | |||
| JP2001210302A | 2001-08-03 | |||
| JP2006228637A | 2006-08-31 | |||
| JP2013508917A | 2013-03-07 |
Attorney, Agent or Firm:
SHIMIZU, Yoshihiro (JP)
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