An elastic germanium–carbon nanotubes–copper foam monolith as an anode for rechargeable lithium batteries

In the germanium–carbon nanotubes–copper monolith anode, the carbon nanotube (CNT) network enhances the electron migration in the electrode and the elastic matrix buffers the volume expansion of Ge active particles. The improved rate and cycling performance endow this elastic monolith as an attractive candidate for lithium batteries' anode.