Scientists Develop the World’s Most Efficient Lithium-Sulfur Battery

Sunday, January 5, 2020 - 10:44

A research team from Monash University in Melbourne, Australia, led by Mahdokht Shaibani and her colleagues have developed a battery with a capacity five times higher than that of lithium-ion batteries.

According to the New Scientist report, Mahdokht Shaibani and her colleagues at Monash University in Melbourne, Australia, developed a new lithium-sulphur battery with an ultra-high capacity that could lead to drastically cheaper electric cars and grid energy storage.

The battery maintains an efficiency of 99 per cent for more than 200 cycles, and a smartphone-sized version would be able to keep a phone charged for five days.

However, lithium-sulphur batteries may face similar ethical problems to lithium-ion batteries. The metal oxides in lithium-ion batteries are typically nickel, cobalt or manganese, which are expensive and diminishing in natural stores. They also have associated ethical problems: a significant proportion of cobalt is sourced by child miners in the Democratic Republic of the Congo, for example.

“In order to have much cheaper energy and more ethical batteries, we need a radically new energy storage system,” says Shaibani. The researchers will further test battery prototypes with a view to manufacturing them commercially in Australia in coming years.

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