A lead-acid battery includes an electrode plate assembly, a battery case, a positive electrode strap, a negative electrode strap, a positive electrode post, a negative electrode post, a cover, and an electrolyte solution. A negative electrode bushing provided in the cover and the negative electrode post together constitute a negative electrode terminal. A maximum value of a gap between an outer circumferential surface of the negative electrode post and an inner circumferential surface of the negative electrode bushing in the negative electrode terminal is 0.5 mm or more and 2.5 mm or less. A rib is provided in a lower part of the negative electrode bushing, and a minimum value of a protrusion height of the rib is 1.5 mm or more and 4.0 mm or less. A distance between a surface of the electrolyte solution and a lowermost portion of the negative electrode bushing is 15 mm or less.

A lead-acid battery includes a positive electrode plate, a negative electrode plate, and an electrolyte solution. The negative electrode plate includes a negative electrode material. The negative electrode material contains a polymer compound, 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 .sup.1H-NMR spectrum. Alternatively, the negative electrode material contains a polymer compound having a repeating structure of oxy C.sub.2-4 alkylene units. A ratio: C.sub.n/S.sub.n of a content C.sub.n of the polymer compound in the negative electrode material to a specific surface area S.sub.n of the negative electrode material is 25 ppm.Math.m.sup.−2.Math.g or more.

The invention provides an energy generating system that includes ferromagnetic crystals in solution providing for improved longevity and operability at below zero temperatures and exhibiting superconductivity.

The invention provides an energy generating system that includes ferromagnetic crystals in solution providing for improved longevity and operability at below zero temperatures and exhibiting superconductivity.

A lead-acid battery includes a positive electrode plate, a negative electrode plate, and an electrolyte solution. The negative electrode plate includes a negative electrode material. The negative electrode material contains a polymer compound. 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 .sup.1H-NMR spectrum, or the negative electrode material contains a polymer compound having a repeating structure of oxy C.sub.2-4 alkylene units.

A lead-acid battery includes a positive electrode plate, a negative electrode plate, and an electrolyte solution. The negative electrode plate includes a negative electrode material. The negative electrode material contains a polymer compound. 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 .sup.1H-NMR spectrum, or the negative electrode material contains a polymer compound having a repeating structure of oxy C.sub.2-4 alkylene units.

An electrolyte system for improving electrolyte performance characteristics is provided. The electrolyte system includes an electrolyte, and a synthetic proton-conductive polymer additive. A cell comprising said electrolyte system and a method of making the same is also disclosed herein. The synthetic proton-conductive polymer additive may be used in conjunction with a bipolar overvoltage battery pulser to improve overall battery performance.

An electrolyte system for improving electrolyte performance characteristics is provided. The electrolyte system includes an electrolyte, and a synthetic proton-conductive polymer additive. A cell comprising said electrolyte system and a method of making the same is also disclosed herein. The synthetic proton-conductive polymer additive may be used in conjunction with a bipolar overvoltage battery pulser to improve overall battery performance.

The present disclosure pertains to motion-generating particles for desulfation of lead-acid batteries, lead-acid batteries including such motion-generating particles, and methods of making and using the same. For example, the present disclosure provides a lead-acid battery including one or more electroactive plates disposed within a casing; an electrolyte disposed within the casing and surrounding the electroactive plates; a plurality of ferromagnetic particles disposed with the electrolyte within the casing; and one or more electromagnets. The one or more electromagnets may be configured to direct a magnetic field towards the electrolyte to selectively cause movement of the plurality of ferromagnetic particles so as to agitate the electrolyte.

The present disclosure pertains to motion-generating particles for desulfation of lead-acid batteries, lead-acid batteries including such motion-generating particles, and methods of making and using the same. For example, the present disclosure provides a lead-acid battery including one or more electroactive plates disposed within a casing; an electrolyte disposed within the casing and surrounding the electroactive plates; a plurality of ferromagnetic particles disposed with the electrolyte within the casing; and one or more electromagnets. The one or more electromagnets may be configured to direct a magnetic field towards the electrolyte to selectively cause movement of the plurality of ferromagnetic particles so as to agitate the electrolyte.