Artificial solid electrolyte interphase based on polyacrylonitrile for homogenous and dendrite-free deposition of lithium metal

Xu Hang-Yu^{1, 2}, Li Quan^{1, 2}, Pan Hong-Yi^{1, 2}, Qiu Ji-Liang^{1, 2}, Cao Wen-Zhuo^{1, 2}, Yu Xi-Qian^{1, 2, ‡}, Li Hong^{1, 2, †}

Morphology of (a) pristine PAN coating and (b) heat-treated PAN coating on Cu electrode. Young modulus mapping of (c) pristine PAN coating and (d) heat-treated PAN coating on Cu electrode.