Title:
CATALYST DEVICE FOR LEAD-ACID BATTERY, AND LEAD-ACID BATTERY
Document Type and Number:
WIPO Patent Application WO/2020/110179
Kind Code:
A1
Abstract:
Provided is a catalyst device for a lead-acid battery, the catalyst device being capable of reducing gas release from an electrolyte solution and a decrease in electrolyte solution due to the leakage, thus providing a lead-acid battery having a long life, and being capable of ensuring safety even in excessive flow of gas. Also provided is a lead-acid battery including the catalyst device. A catalyst device for a lead-acid battery, including: a catalyst layer including a catalyst to accelerate a reaction for generating water or water vapor from oxygen and hydrogen; and a porous membrane including thermoplastic resin having a melting point or a glass transition temperature of 160℃ or less, and wherein at least one surface of the catalyst layer is in contact with the porous membrane, and the porous membrane has a planar size being equal to or greater than that of the catalyst layer. Also a lead-acid battery including the catalyst device.
Inventors:
KOBAYASHI KOTARO (JP)
Application Number:
PCT/JP2018/043437
Publication Date:
June 04, 2020
Filing Date:
November 26, 2018
Export Citation:
Assignee:
GORE W L & ASS CO LTD (JP)
International Classes:
H01M2/12; H01M10/06
Foreign References:
| JP2017201594A | 2017-11-09 | |||
| US20030113612A1 | 2003-06-19 | |||
| JP2018506825A | 2018-03-08 | |||
| JPS538742A | 1978-01-26 | |||
| JPS51121726U | 1976-10-02 | |||
| JP2017201594A | 2017-11-09 | |||
| US7326489B2 | 2008-02-05 |
Other References:
See also references of EP 3888160A4
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
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