“…This is consistent with lithiation-induced softening predicted by the DFT calculations, 31 and it has the same magnitude as in the results reported by MOSS. 11,15,18,23,25 It should be noted that the elastic modulus of Si composite electrodes measured here is much smaller than that of the Si material itself due to the influence of the pores and other electrode components ( e.g. , binder and carbon tubes).…”