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A primary cell is a battery that is made to be used one time only. It cannot be recharged. Once all the power is used up, the battery must be thrown away. It no longer makes electricity. Primary cells are often used to give power to small appliances that are used in the home.
The advantages about this kind of disposable battery are:
- it costs less money
- it is easier to make
- it can last longer before being used (shelf life)
- it is easily available to buy
The disadvantages about this kind of disposable batteries are:
Historic primary cells
The following primary cells are only of historical interest. The dry cell is now almost universal.
|Name||Positive plate||Negative plate||Electrolyte||Depolarizer||Voltage||Link|
|Bunsen cell||Carbon||Zinc||Sulphuric acid||Nitric acid||1.9|||
|Daniell cell||Copper||Zinc||Sulphuric acid||Copper sulphate||1.1|||
|Grove cell||Platinum||Zinc||Sulphuric acid||Nitric acid||1.9|||
|Poggendorff cell||Carbon||Zinc||Sulphuric acid||Chromic acid||2.0|||