Lithium–sulfur batteries ready to go the distance Chemistry World

23 Фев 2014 | Author: | Комментарии к записи Lithium–sulfur batteries ready to go the distance Chemistry World отключены
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Lithium–sulfur batteries ready to go the

Lithium–sulfur batteries might be able to take an electric car than 300 miles on a single Shutterstock

A non-stop trip London to Paris in an eco-friendly car soon be possible, if powered by the lithium–sulfur battery created by in the US. The new batteries hold more double the energy of ordinary batteries weight-for-weight and see little off in performance even after recharged 1500 times.

Lithium-ion batteries dominate the for electric vehicles, but aren’t to meet consumer demand for car can travel more than 300 on a single charge. Lithium–sulfur provide a promising alternative to lithium batteries, but haven’t it into electric cars of the rapid deterioration of the battery.

Cairns ’, and colleagues at the Lawrence National Laboratory in California, US, new may be the answer to the range anxiety that still dog electric His lithium–sulfur graphene oxide should hold enough for electric cars to break the 300 mark in a single charge. main advantages of these are very high specific estimated to be more than versus 200W·h/kg for lithium-ion high rate capability, safety and lower cost lithium-ion cells,’ Cairns

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Previously, scientists have had with lithium–sulfur holding and less energy each they’re recharged. ‘The degradation is largely the result of the of the intermediate reaction products, polysulfides, in the electrolyte,’ Cairns


To tackle this problem, sandwiched the sulfur electrode an immobilising inner layer of oxide and a protective outer of cetyltrimethyl ammonium bromide to polysulfide intermediates forming. sulfur loss to intermediates was by applying this new electrode to a of pre-existing concepts, such as an ionic liquid based to minimise the solubility of the polysulfides, and an styrene butadiene rubber/carboxy cellulose binder to prevent degradation of the cathode.

‘The work comes a way to significantly improving the performance of the cell, showing that factors needed to be simultaneously to do so,’ comments Linda an expert on energy storage from the University of Waterloo in

Cairns and his team now plan to the electrodes with a view to them and assessing the cost of the to see if the batteries could make it on to the ‘Possible applications include phones, laptops and other electronics, plug-in hybrid battery powered vehicles and stationary energy storage for and solar systems,’ Cairns However, those keen on eco-friendly road trips may to wait a little longer, as he electric vehicle batteries several years away – we further development and large scale up’.

Eliica (Electric Lithium-Ion Car)
Eliica (Electric Lithium-Ion Car)
Eliica (Electric Lithium-Ion Car)
Eliica (Electric Lithium-Ion Car)
Eliica (Electric Lithium-Ion Car)
Eliica (Electric Lithium-Ion Car)

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