Title:
LEAD-ACID BATTERY
Document Type and Number:
WIPO Patent Application WO/2022/113621
Kind Code:
A1
Abstract:
This lead-acid battery is provided with at least one cell comprising an electrode plate group and an electrolyte. The electrode plate group is provided with a negative electrode plate, a positive electrode plate, and a separator that is interposed between the negative electrode plate and the positive electrode plate. The negative electrode plate comprises a negative electrode material. The negative electrode material includes: an organic shrink-proofing agent; and a polymer compound having a peak in the range of 3.2 ppm to 3.8 ppm in a chemical shift in a 1H–NMR spectrum measured using a deuterated chloroform solvent. The median diameter (middle diameter) in a volume-based pore distribution of the negative electrode material is 2.15 μｍ or less.
Inventors:
KAGOHASHI HIROKI (JP)
Application Number:
PCT/JP2021/039741
Publication Date:
June 02, 2022
Filing Date:
October 28, 2021
Export Citation:
Assignee:
GS YUASA INT LTD (JP)
International Classes:
H01M4/14; H01M4/62; H01M10/06
Domestic Patent References:
| WO2020241878A1 | 2020-12-03 | |||
| WO2020241886A1 | 2020-12-03 |
Foreign References:
| JP2018018803A | 2018-02-01 | |||
| JPS60182662A | 1985-09-18 | |||
| JPH09147869A | 1997-06-06 | |||
| JPS5147237A | 1976-04-22 | |||
| CN108630937A | 2018-10-09 | |||
| CN101937996A | 2011-01-05 | |||
| JPS60182662A | 1985-09-18 | |||
| JP2014123525A | 2014-07-03 | |||
| JP2017525092W |
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