Commonly used 5 alkaline battery, 7 alkaline battery
Use LR6, LR03 to identify the model
And carbon cell number five and carbon cell number seven
Marked with R6, R03, no “L”
Distinguish between alkalinity or carboniness
Fastest way to see if there’s an “L.”
Alkaline batteries weigh more than carbon batteries
For example, the No. 5 alkaline battery weighs about 23 grams each
The No. 5 carbon battery weighs about 11 grams each
Another example is the No. 7 alkaline battery, which weighs 9g each
The number 7 carbon battery weighs 5g each
To the touch, the battery weight is different
The shell of the alkaline battery is a steel shell
The case of the carbon battery is zinc copper
The essential difference between carbon batteries and alkaline batteries
It’s the difference in the materials inside
Carbon batteries consist of carbon rods and zinc skins
However, there is cadmium and mercury inside, which is not conducive to environmental protection
So it’s cheap
Alkaline batteries do not contain heavy metal ions
Preventing leakage is good for the environment
Is the future direction of battery development
The alkaline battery is on the end near the bottom of the negative electrode
You can feel the annular slot
Carbon batteries generally do not have any slots on the cylinder
This is due to the two sealing methods are different
There are some carbon batteries on the market
It deforms when we squeeze it hard
The appearance of the alkaline battery is stainless steel, hard and not deformed
Alkaline batteries use electrolytic manganese dioxide to make a ring anode
Zinc powder and additives are configured with zinc paste as the negative electrode
Because the electrolyte is highly conductive
The surface area of anode and cathode materials is much better than that of carbon batteries
And the promotion of electrochemical reaction of zinc-manganese system under strong alkaline condition
The output power and capacity of the alkaline battery are far better than that of the carbon battery