Homonym: lithium (Medication)
Lithium is a soft, silvery-white metal that is the lightest of all solid elements. It is highly reactive and is primarily used in rechargeable batteries, such as those found in smartphones and electric vehicles. Because of its ability to store and release energy efficiently, lithium has become essential in the growing field of renewable energy.
In addition to its role in batteries, lithium is also used in mood-stabilizing medications for conditions like bipolar disorder. This makes it an important element not just in technology, but also in healthcare, helping many people manage their mental health effectively.