The distinction between alkaline batteries and carbon batteries：
The electronic clock usually uses one of the （LR6）AA batteries, and the electronic watch uses a button type silver oxide cell.(1.55V) the remote control is usually made with two AAA (LR03) batteries. (sometimes use AA batteries), Ordinary camera (film) usually USES two buttons to oxidize silver battery when displaying exposure.
Digital camera (DC) is commonly used in nickel - hydrogen batteries or lithium-ion batteries, Dry batteries do not apply to DC machines.
The first practical battery to enter the market is zinc-manganese dry cell. In 1860, the Frenchman George Leclanche invented the prototype of the acid zinc-manganese battery, which is also called the Leclanche battery. It is as the cathode zinc tube shell, battery center is the graphite rod as the anode conductive material, the anode zone surrounding the graphite rod powder powder, manganese dioxide and carbon anode area for paste ZnCl2 and NH4Cl mixtures.
Alkaline zinc-manganese batteries did not enter the market until the 1950s.In recent years, in our country market, acidic zinc manganese battery is being taken by the more expensive alkaline zinc-manganese battery.
The electrolyte of alkaline zinc-manganese battery is KOH. The alkaline battery has the opposite structure to the acid battery. The battery center is the negative electrode, the zinc is in powder form and the positive electrode area is in the outer layer. It is a mixture of MnO2 and KOH, and the shell is the steel cylinder. Alkaline zinc-manganese battery overcomes the disadvantage of acid battery storage time and voltage instability, but it is still a disposable battery.
Both have the same voltage, both of which are 1.5v, but the same volume of alkaline batteries is larger and more suitable for large current discharge.
Both carbon and alkaline batteries are dry cells, but they are divided into two categories according to the quality of the material.
Zinc carbon batteries should be the full name of carbon batteries (because it is carbon, general level is the cathode zinc), also known as zinc manganese battery, is by far the most common dry cell, it has the characteristics of cheap and safe and reliable in use, due to carbon batteries contain heavy metal cadmium, so must be recycled, so as to avoid damage to the earth's environment.
The nominal voltage of both carbon and alkaline batteries is 1.5v, but the same volume of alkaline batteries is larger and more suitable for large current discharge.
The essential difference between a carbon battery and an alkaline battery is the difference in internal materials Anyhow, carbon batteries by carbon, zinc, but its interior with cadmium and mercury, is not conducive to environmental protection, but it's cheap, so still have a place on the market, and alkaline batteries do not contain heavy metal ions, large current, environmentally friendly, is the future developing direction of the battery
Alkaline batteries are 4-5 times the amount of carbon batteries and 1.5 to 2 times the price 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 such as the BP machine, CD player, electric toothbrush, electric toy, PDA, etc.