noun
- a substance used in a battery or electrochemical cell to prevent the buildup of hydrogen gas at the negative electrode, thereby improving performance and preventing polarization
Usage: technical; chemistry
Examples
- Manganese dioxide is a common depolarizer used in dry cells.
- The depolarizer in the battery helps maintain a steady voltage output.
- Without a depolarizer, the battery would lose efficiency quickly due to polarization.
- Modern alkaline batteries use depolarizers to extend their shelf life.
- The chemical depolarizer prevents the accumulation of gases inside the cell.