Patent ID: 7083876

Claim:
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, and Mg, or at least one compound thereof, and the simple substance or the compound has an average primary particle diameter of 0.1 to 1,000 nm, and wherein fine particles of the simple substance or the compound are supported by the active carbon or the carbon black or the mixture thereof, and wherein the active carbon or the carbon black or the mixture thereof is a catalyst carrier, and wherein the active carbon is an active carbon produced from coconut husk, and the carbon black is a furnace black, and wherein fine particles of the simple substance or the compound are dispersed on a surface of the active carbon, the carbon black or the mixture thereof.