What are the differences between alkaline batteries and carbon batteries? According to the introduction, the full name of carbon - based batteries should be carbon zinc batteries (because it is usually positive carbon rods, negative electrode is zinc skin), also known as zinc manganese batteries, is the most common dry battery at present. Alkaline battery is also called alkaline dry battery or alkaline zinc manganese dry battery. It is suitable for large and long time use of the instrument, the alkaline battery internal resistance is low, so the current is larger than the general zinc manganese battery.
Carbon batteries are suitable for low current electric appliances, such as quartz clocks, remote controls, radios, and so on. Alkaline batteries are suitable for high current electric appliances, such as CD, PDA and so on. Master Kim told bloomer that the essential difference between carbon and alkaline batteries is the difference in internal materials. The nominal voltage of carbon battery and alkaline battery is 1.5V, but the same volume of alkaline battery has larger capacity and more suitable for large current discharge.
In addition, bloomer learned that carbon batteries are made up of carbon rods and zinc skin, which have cadmium and mercury inside, and are not environmentally friendly. Because of their low price, they still have a place in the market, and alkaline batteries do not contain heavy metal ions, current and environmental protection, which are the future direction of battery development.
In this regard, technology experts said that carbon batteries contain heavy metal cadmium, so they must be recycled to avoid damage to the environment. The environmental friendly alkaline battery contains only 0.025% mercury and no need to recycle. Based on the characteristics of alkaline batteries and environmental protection and current, alkaline batteries now sell more. At the same time, the structure of the alkaline battery is completely opposite to the acid battery. The center of the battery is the negative electrode, the zinc is powdery, the positive zone is in the outer layer, the mixture of MnO2 and KOH, and the shell is the steel tube. Alkaline Zn / MnO 2 battery overcomes the shortcomings of acid battery's storage time and voltage instability, and the storage time is longer.
