L · Glossary
Lithium-ion battery
Also known as Li-ion
A lithium-ion battery is a rechargeable battery type that moves lithium ions between electrodes as it charges and discharges.
A lithium-ion battery is a rechargeable battery type in which lithium ions move between the battery's electrodes through an electrolyte during charge and discharge. In home energy, the term may appear as an umbrella label for a battery storage product rather than a complete specification. The label identifies the broad battery family, but not the system's usable capacity, charge or discharge limits, backup support or likely service life in a particular home.
Category
Battery storage terms
Applies to
Battery storage, Solar
Last reviewed
31 May 2026