The porous spongy nest structure compressible anode fabricated by gas forming technique toward high performance lithium ions batteries

This work is innovative based on the construction of compressible nest-like spongy CNFs composite electrode to improve performance of flexible LIBs. Novelty gas-forming technique and efficient electrospinning fabricate unique macro sponge-like structure. It endows excellent electrochemical performance under compress state and superior compressible as well as recovery ability. The anode exhibits fast permeability and various pores morphology, and nest-like structure effectively relieve stress from expansion of particles in CNFs. Thus, the compressible spongy anode possesses long cycling life under deformation which could be hopefully applied in Flexible batteries.