Consumer & Gadgets

Why do smoke alarms keep going off even when there's no smoke?

Editor's note: MVS Chandrashekhar is a professor of electrical engineering at the University of South Carolina. In this interview, he explains how smoke detectors work and why they sometimes sound an alarm for what seems ...

Electronics & Semiconductors

A way to make zinc batteries rechargeable

A team of researchers from China, Germany and the U.S. has developed a way to make zinc batteries rechargeable. In their paper published in the journal Science, the group describes how, by using a non-alkaline electrolyte, ...

Energy & Green Tech

Future material demand for automotive lithium-based batteries

As the world shifts to electric vehicles to reduce climate change, it is important to quantify future demands for key battery materials. In a new report, Chengjian Xu, Bernhard Steubing and a research team at the Leiden University, ...

Energy & Green Tech

How to power up battery manufacturing in India

India is one of only a few countries whose national emissions reduction target is in line with the Paris Agreement's goal of reducing global warming before Earth's temperature reaches a dangerous threshold. But to successfully ...

Energy & Green Tech

Serving up renewable energy

As decisions about nuclear power installations, wind farms, solar plants, and other energy sources are being discussed, new research published in the International Journal of Business Continuity and Risk Management, reviews ...

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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.

This text uses material from Wikipedia, licensed under CC BY-SA