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The story of a missing gray seal camera

A rare piece of research equipment was recovered on the Scotian Shelf after it spent three years lost at sea, and its contents could contain valuable information about the behavior of gray seals on Sable Island.

Is battery recycling environmentally friendly?

The EU will be home to 30 million electric cars by 2030 and the European Commission is preparing tough targets for recycling these and other batteries. Yet the impacts of battery recycling, especially for the sizeable lithium-ion ...

The surprising strength of liquid crystals

Dendrites are the destructive by-products of the cycle of charging and discharging lithium ion batteries. These tiny deposits form between the battery's anode and cathode, building up over time. Inevitably, they diminish ...

Scientists develop a lithium-ion battery that won't catch fire

A flexible lithium-ion battery designed by a team of researchers from the Johns Hopkins Applied Physics Laboratory and built to operate under extreme conditions—including cutting, submersion, and simulated ballistic impact—can ...

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Battery (electricity)

In electronics, a battery or voltaic cell is a combination of many electrochemical Galvanic cells of identical type to store chemical energy and to deliver higher voltage or higher current than with single cells.

The battery cells create a voltage difference between the terminals of each cell and hence to its combination in battery. When an external electrical circuit is connected to the battery, then the battery drives electrons through the circuit and electrical work is done. Since the invention of the first Voltaic pile in 1800 by Alessandro Volta, the battery has become a common power source for many household and industrial applications, and is now a multi-billion dollar industry.

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