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KONG Long1,2, LI Yun-Jiao1,2, LI Wei-Jian2, Li Pu-Liang2, LI Hua-Cheng2
Fig. 5 Electrochemical impedance spectra EIS of the two samples in the discharged state about 3.0 V, vs Li + Li after 3 cycles with an equivalent circuit diagram is inserted