“Water-in-LiCl” electrolyte boosting high voltage of MXene micro-supercapacitors (IMAGE)
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(a) The electrochemical stability window of high-concentrated LiCl aqueous electrolyte expands to ~ 2.7 V. (b) The voltage window of MXene electrode in high-concentrated LiCl aqueous electrolyte is broadened to 1.8 V. (c) Snapshots of equilibrium trajectories of high-concentrated LiCl aqueous electrolyte. (d) Galvanostatic charge-discharge profiles of MXene planar micro-supercapacitors with different microelectrode thicknesses. (e) Cyclic voltammetry curves of MXene planar micro-supercapacitors at different temperatures. (f) Optical images of the letter “DICP”, made up of LED lights, illuminated by serially-connected MXene planar micro-supercapacitors in bending wearable states. Photo credit: Yuanyuan Zhu and Shuanghao Zheng.
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