Stable Lithium Storage at Subzero Temperatures for High‐capacity Co₃O₄@graphene Composite Anodes

Achieving high energy density and long‐term stability at subzero temperatures remains one of the main challenges for the development of lithium‐ion batteries. Shortcomings in energy density and stability mainly highlight on the increase in internal resistance and electrode polarization at subzero temperatures, which greatly affect the reversible capacities of lithium‐ion batteries. In this work, a conversion type Co 3 O 4 @graphene (Co 3 O 4 @G)...