What lead–acid battery is made of
The first rechargeable battery (Gaston Planté).
- Lead plates — has part. Negative electrodes.
- Lead dioxide plates — has part. Positive electrodes.
- Separator — has part. Separators between the plates.
- Electrochemical reaction — uses. A reversible reaction of lead and lead dioxide in sulfuric acid.
- Sulfuric acid — uses. The electrolyte.
- Hydrometer — uses. A car battery's charge is checked with a hydrometer by the density of its acid.
- Sulfuric acid — is made of. The electrolyte.