A carbon-zinc battery is packaged in a zinc can that serves as both a container and anode. "Super" or "Heavy Duty" batteries, technically called zinc chloride cells, are an improved version from the cheaper "General Purpose" variety. The cathode is a mixture of manganese dioxide and carbon powder. The electrolyte is a paste of zinc chloride and ammonium chloride dissolved in water. Carbon zinc batteries are the least expensive primary batteries and thus a popular choice by manufacturers when devices are sold with batteries included. They can be used in remote controls, flashlights, toys, or transistor radios, where the power drain is not too heavy.
Know More about Carbon Zinc Battery
Carbon Zinc batteries work best with low or moderate power requirements. With every use the voltage drops until it is time to throw it away. The Carbon Zinc is limited for use in some of the newer portable electronic products with their higher drain requirements, but is still good for flashlights and intermittent use. General purpose batteries like Carbon Zinc don't withstand heat and cold very well. And long storage periods when temperatures soar above 100o F, such as in our cars during the summer, cause deterioration. The heat drives out the moisture from the chemical mix in the cell. It's not a good performer at low temperatures either. At 0o F or below, the cell's chemical activity is so decreased that there is little service life. Carbon zinc batteries had three big advantages: low cost, a wide number of sizes, and they are readily available. Advances in technology and manufacturing techniques have eliminated these advantages by lowering the costs of producing alkaline in a wide range of readily available sizes. Alkaline batteries have almost entirely replaced carbon zinc and zinc chloride in some productive line.
Carbon zinc battery Compared with other batteries Compared with original zinc-carbon batteries, while both produce approximately 1.5 volts per cell, alkaline batteries have a higher energy density and longer shelf-life. Compared with silver oxide batteries, which alkaline commonly compete against in button cells, they have lower energy density and shorter lifetimes. The alkaline battery gets its name because it has an alkaline electrolyte of potassium hydroxide, as opposed to the acidic electrolyte of the zinc-carbon batteries which are offered in the same nominal voltages and physical size.
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