The difference between alkaline batteries and carbon batteries


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

First, carbon batteries and alkaline batteries are both dry batteries, but they are divided into two categories according to different materials.
Second, the full name of a carbon battery should be a carbon-zinc battery (because it is generally a carbon rod for the positive stage and a zinc skin for the negative electrode), also known as a zinc-manganese battery, which is currently the most common dry battery. It has low price and safe use. Reliable features. Because carbon batteries contain heavy metal cadmium, they must be recycled to avoid damage to the global environment. (So ​​the positive grade we usually use is carbon rod, and the battery whose negative electrode is zinc skin should be recycled).
Third, alkaline batteries are also called alkaline dry batteries or alkaline zinc-manganese dry batteries, which are suitable for instruments that require large discharge capacity and long-term use. Alkaline batteries have low internal resistance, so the current generated is larger than that of ordinary zinc-manganese batteries. , While the environmentally friendly alkaline battery contains only 0.025% mercury and does not need to be recycled. Based on the environmental protection and high current characteristics of alkaline batteries, more alkaline batteries are now offered.
Fourth, the nominal voltage of carbon batteries and alkaline batteries are both 1.5V, but alkaline batteries of the same volume have a larger capacity and are more suitable for high-current discharge.
Fifth, the essential difference between carbon batteries and alkaline batteries lies in the difference in internal materials. In short, carbon batteries are composed of carbon rods and zinc skins, but there are cadmium and mercury inside, which are not good for environmental protection, but they are cheap, so they still have a place in the market. Alkaline batteries do not contain heavy metal ions and have high current. Conducive to environmental protection, is the direction of future battery development!
Sixth, 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 low-current electrical appliances, such as quartz clocks, remote controls, radios, etc.; alkaline batteries are suitable for high-current electrical appliances