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.
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A video tape recorder (VTR) is a tape recorder designed to record and play back…
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invented by John Ambrose Fleming
The Fleming valve, also called the Fleming oscillation valve, was a thermionic…
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invented by Wallace Carothers
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