Wikipedia
A lithium-ion battery or Li-ion battery is a type of rechargeable battery in which lithium ions move from the negative electrode through an electrolyte to the positive electrode during discharge, and back when charging Li-ion batteries use an intercalated lithium compound as the material at the positive electrode and typically graphite at the negative electrode Li-ion batteries have a high energy density, no memory effect (other than LFP cells) and low self-discharge Cells can be manufactured to either prioritize energy or power density They can however be a safety hazard since they contain flammable electrolytes, and if damaged or incorrectly charged can lead to explosions and fires
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