Sodium-ion battery, cathode

That’s because all those items rely on cobalt as a key component for the lithium-ion rechargeable batteries that make them ...
The power bank has a 20,000 mAh rechargeable lithium-ion battery used to charge laptops, cell phones, and other devices when an electrical outlet is not available. The power bank is black and ...
a hand warmer is basically a big rechargeable battery that puts out heat. But in practice it tries to do too many things. Although the warmer itself charges via USB-C, the port to power a phone ...
Batteries are made in certain sizes and shapes for reasons of cost and manufacturability, but in other cases because of ...