Scientists design new cathode sodium-based batteries
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Scientists design new cathode sodium-based batteries


Scientists at the Institute of Chemistry (IOC) of Chinese Academy of Sciences (CAS) and the US Department of Energy’s (DOE) Brookhaven National Laboratory have designed a new type of cathode that could make the mass production of sodium batteries more feasible.

Batteries based on plentiful and low-cost sodium are of great interest to both scientists and industry as they could facilitate a more cost-efficient production process for grid-scale energy storage systems, consumer electronics and electric vehicles.

Lithium batteries are commonly found in consumer electronics such as smartphones and laptop computers, but in recent years, the electric vehicle industry also began using lithium batteries, significantly increasing the demand on existing lithium resources.

“Just last year, the price of lithium carbonate tripled, because the Chinese electric vehicle market started booming,” said Xiao-Qing Yang, a physicist at the chemistry division of Brookhaven Lab and the lead Brookhaven researcher on this study.

In addition, the development of new electrical grids that incorporate renewable energy sources like wind and solar is also driving the need for new battery chemistries. Because these energy sources are not always available, grid-scale energy storage systems are needed to store the excess energy produced when the sun is shining and the wind is blowing.

Scientists have been searching for new battery chemistries using materials that are more readily available than lithium. Sodium is one of the most desirable options for researchers because it exists nearly everywhere and is far less toxic to humans than lithium.

Read more: https://goo.gl/JTzGr4
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