Lithium solar batteries are made of lithium-ion, a type of rechargeable battery that uses lithium ions as the primary component. The lithium-ion battery is one of the most popular battery technologies because of its high energy density, low self-discharge rate, and long cycle life.
On the other hand, gel solar batteries use gel electrolyte instead of liquid electrolyte. The gel is a thickening agent that makes the battery more stable and less likely to spill. The gel electrolyte also reduces the risk of acid leakage, making it a safer option for the environment.