Successfully built smartphone battery works well under -70 ° C

Under extreme low temperatures, conventional lithium-ion batteries can not function properly. The Li-ion battery will lose 50% of its original performance in just a few minutes at -20 ° C, making the smartphone slow down, and even causing unintentional power failure. want.

New Li-ion batteries developed by Chinese scientists are capable of stable operation even at temperatures down to -70 ° C. This not only allows smartphones to operate stably in the harshest parts of the world, but can also operate in outer space.

The research team used ethyl acetate , a very low temperature conductor to act as an electrolyte along with two other organic compounds, as two electrodes, including PTPAn (cathode) and PNTCDA (polar). positive).

Organic compounds will not react with lithium ions in the molecular matrix of the electrode, which limits the efficiency of the low-temperature environment that the current Li-ion battery is experiencing.

This new battery technology is environmentally friendly, using popular materials and not too expensive. The biggest problem in commercializing this technology is its low energy density compared to the current Li-ion battery.