LAUSR

Due to its highly in-plane oriented crystal structure, flexible graphite film (GF) possesses excellent electrochemical corrosion resistance, high planar electrical conductivity and considerable mechanical strength. In this work, laser-drilled integrated graphite film (porous-GF, PGF) is unprecedentedly used as a key to fabricate a high performance high-energy 5 V-class flexible PGF/PGF-LiNi0.5Mn1.5O4 full-cell, where flexible PGF is a self-standing flexible graphite anode for lithium ion intercalation/deintercalation and a high-voltage resistance cathode current collector. This unique designing based on flexible PGF will endow the future flexible batteries with excellent characteristics of thin, lightweight, simple fabrication and high-energy. More encouragingly, unlike previously reported flexible electrodes using carbon nanomaterials as non-metal current collector, the mass production and processability of flexible GF and PGF is feasible with the aid of commercially available roll-to-roll laser-drilling technology.