The World Runs on Batteries Lithium batteries power everything - including cell phones, laptops, toys, appliances, power tools, and electric toothbrushes. High-tech devices usually contain rechargeable lithium-ion batteries because it is much more convenient to charge a device than it is to frequently dismantle it and replace a standard alkaline disposable battery (commonly used in basic devices like tv remotes or flashlights). Lithium-ion batteries last much longer and have higher power density than traditional batteries.   What’s in a Lithium Battery? Lithium batteries are composed of various elements, including lithium-ion or lithium-polymer cells, a protective casing, electrolytes, and valuable metals like cobalt, nickel, and copper. Despite being rechargeable, they will eventually require replacement due to a loss of capacity. You should NOT dispose of them in regular trash or recycling bins, because they contain harmful substances that could be hazardous to the environment if released.   Types of Lithium Batteries There are several different types of lithium batteries, each with its [...]