26 Dec '15, 3pm

Sony's New Sulfur Rechargeable Battery Has an Increased Lifespan of 40%

In five years, your smartphone could be powered completely differently. Sony has revealed that is developing new sulfur rechargeable battery technology that would replace lithium-ion (li-ion) units. The goal is to have them ready for the market in 2020. By using sulfur compounds as material for the electrode, the energy density per volume (i.e. the energy stored based on the size of the battery) would increase from 700Wh/L to 1,000Wh/L. Compared to a battery already in existence with the same volume, this sulfur battery could have an increased lifespan by 40%. As Sony works on the sulfur rechargeable battery technology, two different compounds have emerged: lithium-sulfur (Li-S) and magnesium-sulfur (Mg-S). The Li-S unit uses the sulfur compound for the positive electrode and metal lithium for the negative electrode. Though the compound has a low voltage, the theoretical v...

Full article: http://www.greenoptimistic.com/sony-rechargeable-battery-...

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