CPC H01M 4/68 (2013.01) [H01M 4/14 (2013.01); H01M 10/06 (2013.01)] | 16 Claims |
1. A lead-acid battery comprising a positive electrode plate, a negative electrode plate, an electrolyte solution, and a polymer compound, wherein
the positive electrode plate includes a positive current collector and a positive electrode material,
the negative electrode plate includes a negative current collector and a negative electrode material, wherein at least the negative electrode material contains the polymer compound,
the Ca content of the positive current collector is 0.13% by mass or less, and
the polymer compound has a peak in a range of 3.2 ppm or more and 3.8 ppm or less in a chemical shift of 1H-NMR spectrum, and the polymer compound contains a repeating structure of oxy C2-4 alkylene units.
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