Effects of cycle times and C-rate on mechanical properties of copper foil and adhesive strength of electrodes in commercial LiCoO2 LIBs

It is important to appraise the evolution of mechanical properties of current collectors and the adhesive strength of electrodes to reveal the chemical-mechanical coupling failure mechanism of lithium-ion batteries (LIBs), and to improve their cycling performance and cycling life. In this work, the mechanical properties of copper foil, anode, and cathode of commercial LIBs were studied under different cycling conditions by means of tensions with...