Zinc silver battery is generally called silver zinc battery. Potassium hydroxide or sodium hydroxide is used as electrolyte, silver is used as positive material, and zinc is used as negative material. The active substance on the positive electrode made of silver is porous silver, while the active substance on the negative electrode made of zinc is mainly zinc oxide. After the electrolyte is poured in and charged, the silver of the positive electrode becomes divalent Silver oxide and the zinc oxide of the negative electrode becomes zinc. Zinc silver batteries are generally installed in plastic shells or in aluminum alloy or stainless steel shells.

　　The main advantage of zinc silver batteries is their high specific energy, with an energy to mass ratio (effective electrical energy generated per unit mass) of 100W · h/kg to 130W · h/kg (3-4 times that of lead-acid batteries). Zinc silver batteries suitable for high current discharge are used in military, aviation, mobile communication equipment, electronic instruments, artificial satellites, aerospace and other aspects. Made into button type miniature zinc silver batteries for use in electronic watches, hearing aids, computers, and pacemakers.

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