The Difference Between Carbon And Alkaline Batteries
- Jan 31, 2018 -

The difference between carbon and alkaline batteries

The essential difference between carbon and alkaline batteries derives from the difference in their internal materials. In addition, the structure of the carbon and alkaline batteries is completely the opposite.


The first practical battery to enter the market is a zinc and manganese combined dry battery. In the early 1860s the French Pavilion (George Leclanche) le Krone invented the acidic zinc manganese battery prototype, which is also called Leclanche battery battery. Its outer shell is the zinc tube as the negative pole. The center of the battery is graphite rod as the conductive material of positive electrode. The positive electrode area is the powder manganese dioxide and carbon powder around the graphite rod, and the negative pole is ZnCl2 and NH4Cl mixture.


Alkaline zinc manganese batteries began to enter the market since the 1950s. In recent years, acid zinc manganese batteries are being replaced by alkaline zinc manganese batteries with more expensive prices in China market. The electrolyte of alkaline zinc manganese battery is KOH.


The structure of alkaline battery is the same as that of acid battery. The center of battery is negative electrode, zinc is powdery, the positive electrode is outer layer, it is a mixture of MnO2 and KOH, and its outer shell is steel cylinder. The alkaline zinc manganese battery has overcome the disadvantage of the unstable storage time and voltage of the acid battery, but it is still a one-time battery.


The alkaline battery is 4-5 times powerful than a carbon battery, and the price is 1.5-2 times cheaper than a carbon battery. Carbon battery is suitable for use in low current electrical appliances, such as quartz clock, radio remote control, etc. While alkaline battery is applied in high current electrical appliances, such as a pager, CD player, electric toothbrush, electric toys, handheld computer etc..


The difference between carbon and alkaline batteries

Steps / methods


Carbon and alkaline batteries are dry batteries, only two categories that are divided according to the different material.

The battery should be full carbon carbon zinc batteries (because it is the general level is the carbon rod electrode is the zinc skin), also known as zinc manganese battery, is currently the most common dry battery, it has the characteristics of low price and safe and reliable use, because carbon batteries contain cadmium, therefore it must be recovered in order to avoid damage to the environment of the earth (This is why we usually use the positive level of carbon rods and the anode in zinc battery is recycled).

Alkaline batteries are also called alkaline zinc manganese battery and they are suitable for large power and long time instruments used for resistance (resulting in the current general zinc manganese batteries, alkaline batteries and environmental mercury content of only 0.025%, without recovery). Based on the environmental and current characteristics of alkaline batteries, they started to have arouses more interest.

The nominal voltage of both carbon and alkaline batteries is 1.5V, but the same volume of alkaline battery has a larger capacity, which is more suitable for large current discharge.

The essential difference between a carbon battery and an alkaline battery lies in the difference in the internal material. In short, carbon batteries by carbon, zinc skin, but its internal cadmium and mercury, is not conducive to environmental protection, but it is cheap, so it still has a space for one person in the market, while alkaline batteries do not contain heavy metal ions, high current, conducive to environmental protection, is the future development direction of the battery!