Solvothermal synthesis and electrochemical performance of Ag-doped V6O13 as cathode material for lithium-ion battery

Ultrafine β-AgVO3 nanoribbons derived from α-AgVO3 nanorods by water evaporation method and its application for lithium ion batteries

“…This kind of formation of silver nanoparticles can be attributed to the electron beam irradiation in the process of TEM or HRTEM characterization. Based on the recent reports, [20][21][22] it can be seen that the existence of silver in the active material may promote the conductivity of vanadium oxides, 21 which could present better electrochemical performance. HRTEM image of nanoribbons indicated with the white frame II in Fig.…”

Recent progress in rate and cycling performance modifications of vanadium oxides cathode for lithium-ion batteries

“…The substitution of vanadium atoms with hetero-cations (Ag [129], Al [130], Cu [131], Mn, [132]) is a pivotal approach to modify the electrochemical properties of V 6 O 13 . Zhengguang et al [62] researched the influence of the guest Al 3+ amount on the electrode performance of the V 6 O 13 .…”

“…The results showed that Al-doped V 6 O 13 with the Al/V mole ratio of 0.041 possessed the highest initial discharge capacity of 496 mAh/g and the capacity retention was 91% after 30 cycles. Jinyun et al [129] synthesized rod-like Ag-doped V 6 O 13 via solvothermal method followed by annealing. The heteroatoms Ag in the proper content can decrease the charge-transfer resistance and electrochemical polarization by improving the conductivity of V 6 O 13 .…”

Understanding the Mechanism for Capacity Decay of V6O13-Based Lithium-Metal Polymer Batteries

“…Vanadium oxides have been widely investigated as cathode materials due to their low cost, ease of synthesis, and high theoretical capacities. − The vanadium oxide V 6 O 13 is less toxic than V 2 O 5 , has long been known to exhibit a high capacity and its use in cathodes continues to attract attention. − Theoretically, V 6 O 13 can electrochemically incorporate up to eight lithium ions in each formula unit with all of the vanadium ions being reduced to an oxidation state of +3, which would enable the capacity to reach 417 mAh g –1 . However, the reported capacity of V 6 O 13 cathode materials listed in Table S1, − with an average measured value of approximately 320 mAh g –1 , is still a major challenge since it is significantly smaller than the theoretical value.…”