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. Carbon batteries and alkaline batteries are completely opposite in structure
The shell of the carbon battery is a zinc cylinder as the negative electrode, the center of the battery is a graphite rod as the positive electrode conductive material, the positive electrode area is powdered manganese dioxide and carbon powder surrounding the graphite rod, and the negative electrode area is a paste-like mixture of ZnCl2 and NH4Cl.
The structure of the alkaline battery is completely opposite to that of the acid battery. The center of the battery is the negative electrode, the zinc is in powder form, the positive electrode area is in the outer layer, which is a mixture of MnO2 and KOH, and the outer shell is a steel cylinder. Alkaline zinc-manganese batteries overcome the shortcomings of acid batteries' storage time and voltage instability, but are still disposable batteries.
Second, the nominal voltage of carbon batteries and alkaline batteries is 1.5V, but the capacity of alkaline batteries of the same volume is larger. Therefore, it is much more durable than carbon batteries, and it is not as easy to 'run off' and corrode as carbon batteries.
Third, alkaline batteries are 4-5 times the power of carbon batteries, and the price is 1.5-2 times that of carbon batteries. In terms of shelf life, the shelf life of alkaline batteries is 7 years, while the shelf life of carbon batteries is 2 years. .
Fourth, 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 BP players, CD players, electric toothbrushes, electric toys, and handheld computers. Wait.