Developed a lithium-sulfur battery, lithium-ion superior in many ways




Developed a lithium-sulfur battery, lithium-ion superior in many ways


We have heard stories about the explosion of batteries of mobile phones and laptops. Affected are lithium-ion batteries, which are very susceptible to overheating. Scientists at Oak Ridge National Laboratory, U.S. Department of Energy have developed and tested a completely solid-state lithium-sulfur battery energy density which is about four times higher than that of conventional lithium-ion batteries used in today’s consumer electronics. Also solved the question of cost and explosion .

“Our approach is completely different from the concept of two electrodes in a liquid electrolyte, which is used by the last 150-200 years. The transition from the liquid to the solid electrolyte eliminates the problem of dissolution of sulfur, which allows us to keep a promise regarding lithium-sulfur batteries, “- says the study’s lead author Chengdu Lian.

High-energy density lithium-sulfur battery is a long charge retention compared to the lithium ion equivalent. Moreover, the material used in lithium-sulfur batteries are not so susceptible to heat, to self-ignite or explode.

Lithium-sulfur battery

To date, lithium-ion batteries are mainly used in consumer electronics, from smartphones and ending with plug electric cars and planes.

For many years, scientists have worked hard to eliminate the shortcomings of lithium-ion batteries, but researchers at Oak Ridge National Laboratory, managed to create a strong battery is fully enriched with sulfur cathode, lithium anode and the solid electrolyte material.

According to the authors of the development, another positive aspect of lithium-sulfur batteries is the cost. Sulphur is a cheap by-product contained in abundance in natural gas.

“Extraction of sulfur are cheap. Sulfur not only holds more power than the compounds of the transition metals used in the cathodes of lithium-ion batteries, sulfur batteries help to re-use by-product “, – says Lian.

Lithium-sulfur batteries are still at the demonstration stage, but at the Oak Ridge National Laboratory are not going to sit back and plan for the foreseeable future, to commercialize the technology.

Last month, 18-year-old student presented an invention that allows you to charge your smartphone battery for 20-30 seconds .
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