A lithium-ion battery or Li-ion battery is a type of rechargeable battery in which lithium ions move from the negative electrode through an electrolyte to the positive electrode during discharge and back when charging. Li-ion batteries use an intercalated lithium compound as the material at the positive electrode and typically graphite at the negative electrode.
invented by James Martin
In aircraft, an ejection seat or ejector seat is a system designed to rescue…
invented by Norikazu Sawazaki
A video tape recorder (VTR) is a tape recorder designed to record and play back…
invented by John Ambrose Fleming
The Fleming valve, also called the Fleming oscillation valve, was a thermionic…
invented by Wallace Carothers
Nylon is a generic designation for a family of synthetic polymers composed of…
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