An aqueous lithium-ion battery is a special type of battery that can store a lot of energy and it uses something called lithium-ions to do this. Imagine you have a toy car and you want it to go fast, but you need to put some energy into it first. The same thing happens with a battery, it stores energy so you can use it when you need it.
Now, this special battery uses water instead of other liquids that are usually inside batteries. Water is something we drink and use to water plants, so it's very safe to use. This water has some special stuff added to it called lithium-salts. These lithium-salts are important because they help the battery store more energy.
The best part about this battery is that it's very eco-friendly because it doesn't use harmful chemicals that can damage the environment. This battery is also very useful for things like electric cars, phones, and laptops.
In conclusion, an aqueous lithium-ion battery is a special type of battery that stores a lot of energy, uses water and lithium-salts instead of harmful chemicals, and is really good for the environment.