First, carbon batteries and alkaline batteries are dry […]
First, carbon batteries and alkaline batteries are dry batteries, but only in two categories depending on the material.
Second, the full name of the carbon battery should be a carbon-zinc battery (because it is generally a carbon rod, the anode is zinc skin), also known as zinc-manganese battery, is currently the most common dry battery, it is cheap and safe to use. Reliable features, because carbon batteries contain heavy metal cadmium, they must be recycled to avoid damage to the global environment. (So we usually use the positive carbon rod, the negative electrode is the zinc skin battery to be recycled).
Third, alkaline batteries, also known as alkaline dry batteries or alkaline zinc-manganese dry batteries, are suitable for instruments that require large discharge and long-term use. Alkaline batteries have lower internal resistance, so the current generated is larger than that of ordinary zinc-manganese batteries. The environmentally friendly alkaline battery contains only 0.025% of mercury and does not need to be recycled. Based on the environmental protection and large current characteristics of alkaline batteries, alkaline batteries are now being raised more.
Fourth, the nominal voltage of both carbon and alkaline batteries is 1.5V, but the same volume of alkaline batteries has a larger capacity and is more suitable for large current discharge.
Fifth, the essential difference between a carbon battery and an alkaline battery is the difference in internal materials. In short, the carbon battery is composed of carbon rods and zinc skin, but it has cadmium and mercury inside, which is not conducive to environmental protection, but it is cheap, so there is still a place in the market, and alkaline batteries do not contain heavy metal ions, and the current is large. Conducive to environmental protection, is the direction of battery development in the future!
Sixth, the alkaline battery is 4-5 times the carbon battery, and the price is 1.5-2 times that of the carbon battery. Carbon batteries are suitable for use in low-current appliances such as quartz clocks, remote controls, radios, etc. Alkaline batteries are used in high-current appliances such as BP machines, CD players, electric toothbrushes, electric toys, and palmtop computers.