Lead-acid battery
First Claim
1. A lead-acid battery comprising an anode, a cathode and an electrolytic solution, wherein into the anode is added a carbon containing a simple substance and/or a compound, both having a catalysis for desulfurization or SOx oxidation.
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Abstract
The present invention provides a lead-acid battery superior in high-efficiency charging characteristic to conventional lead-acid batteries; and a carbon material used in the lead-acid battery, having excellent charge acceptability. That is, the present invention provides a lead-acid battery which uses, as an additive to the anode active material, a simple substance and/or a compound thereof, both having a catalysis for desulfurization or a catalysis for SOx oxidation by adding to or loading on a carbon material such as active carbon, carbon black or the like and thereby has superior high-efficiency charging characteristic and improved charging acceptability. When such a lead-acid battery whose anode contains a carbon material containing or loading thereon the above simple substance and/or compound, is applied to electric cars, various hybrid cars, power storage systems, elevators, electromotive tools and power source systems such as uninterruptible power source, distributed power source and the like, all having high input and output requirements, stable control can be obtained.
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Citations
18 Claims
- 1. A lead-acid battery comprising an anode, a cathode and an electrolytic solution, wherein into the anode is added a carbon containing a simple substance and/or a compound, both having a catalysis for desulfurization or SOx oxidation.
- 6. A lead-acid battery comprising an anode, a cathode and an electrolytic solution, wherein into the anode is added a loaded material obtained by loading, on a carbon, at least one simple substance selected from the group consisting of Hf, Nb, Ta, W, Ag, Zn, Ni, Co, Mo, Cu, V, Mn, Ba, K, Cs, Rb, Sr and Na, or at least one oxide, sulfate, hydroxide or carbide thereof.
- 13. A lead-acid battery comprising a cathode, an anode and an electrolytic solution, wherein into the anode is added an active carbon or a carbon black or a mixture thereof containing at least one simple substance selected from the group consisting of Cu, Ni, Zn, Mn, Al, Si, K and Mg, or at least one compound thereof.
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16. A carbon material for use in a lead-acid battery, which is a carbon powder containing or loading thereon at least one simple substance selected from the group consisting of Hf, Nb, Ta, W, Ag, Zn, Ni, Co, Mo, Cu, V, Mn, Ba, K, Cs, Rb, Sr and Na, or at least one oxide, sulfate, hydroxide or carbide thereof.
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17. A carbon material for use in a lead-acid battery, which is a carbon powder containing a simple substance and/or a compound, both having a catalysis for desulfurization or SOx oxidation.
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18. A carbon material for use in a lead-acid battery, which is an active carbon and/or carbon black containing at least one simple substance selected from the group consisting of Cu, Ni, Zn, Mn, Al, Si, K and Mg, or at least one compound thereof.
Specification