Rechargeable

There are plenty of trackers to promote healthy habits, but how about a device that discourages a not so healthy one? Quitbit is a smart lighter designed to help rein in smoking addiction by keeping tabs on how often you light up.

Powerful microbatteries developed at the University of Illinois combine the energy capacity of lithium batteries and the power delivery of a supercapacitor.

MIT researchers have designed a new battery that could allow EVs to be "refueled" in a similar way to conventional gas-powered vehicles.

In figuring out how a molecule called fulvalene diruthenium works to store and release heat, researchers at MIT may have paved the way for a rechargeable battery that stores heat instead of electricity.

The SoundBite hearing system from Sonitus Medical transmits sound to the inner ear via the teeth using bone conduction.