Subzero temperature promotes stable lithium storage in SnO2

It is known that low operating temperature reduces significantly the discharging capacity and cycling stability of lithium ion battery (LIB). In addition LIBs are unable to charge at subzero temperatures because of the propensity for Li dendrite formation on graphite anodes. The present work we found that SnO2 anode can deliver high capacity under subzero temperature, 71% of its 30°C capacity at –20°C in a commercial LiPF6-EC/PC based...