What is the difference between a carbon battery and an alkaline battery?

Date:2019-03-01
Summary:

First, carbon batteries and alkaline batteries are dry […]

First, carbon batteries and alkaline batteries are dry batteries, but in two categories according to the different materials.
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. The carbon battery contains heavy metal cadmium, so it 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).
3. Alkaline batteries are also called alkaline dry batteries or alkaline zinc-manganese dry batteries. They 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 carbon and alkaline batteries is 1.5V, but the same volume of alkaline battery capacity is larger, more suitable for large current discharge.
5. 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!
6. Alkaline batteries are 4-5 times the capacity of carbon batteries, and the price is 1.5-2 times that of carbon batteries. 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.
The capacity of alkaline batteries is five to six times that of carbon batteries, so it is more economical to use alkaline batteries than carbon batteries, especially in places with large power consumption, such as digital cameras, flashlights, electric toys, and shaving cutters. When the power consumption is small, the advantages of alkaline batteries, such as electronic clocks, LED flashlights, etc., are not reflected.