Cauliflower-like nanostructured ZnV2S4 as a potential cathode material to boost-up high capacity and durability of the aqueous zinc-ion battery

Hierarchical Structured SrV2O6/2D-V2CTX MXene Nanohybrid Material for Robust and High-Capacity Aqueous Zn-Ion Batteries

“…Charge transfer resistance ( R ct ) is defined by a compressed semicircle, and the Warburg impedance is indicated by an inclined line. The rapid decrease in charge-transfer resistance demonstrates the SrV 2 O 6 -V 2 CT x electrode’s excellent cycle stability …”

“…The rapid decrease in charge-transfer resistance demonstrates the SrV 2 O 6 -V 2 CT x electrode's excellent cycle stability. 58 ■ CONCLUSION In summary, SrV 2 O 6 decorated layered 2D-V 2 CT x MXene is synthesized by a hydrothermal method, which is used as a cathode material for an aqueous Zn-ion battery. The material confirmation is completed by different physical characterization.…”

Porous layered ZnV2O4@C synthesized based on a bimetallic MOF as a stable cathode material for aqueous zinc ion batteries

“…6 (a) Cycling performance of ZVO and ZVO@C at 0.5 A g −1 ; (b) cycling performance of ZVO@C at 10 A g −1 ; and (c and d) comparison of ZVO@C and other reported vanadium-based cathodes. 21,22,28,[42][43][44][45][46][47][48][49]…”

“…It can be clearly seen that at small current densities of 0.05-0.5 A g −1 , the initial discharge specific capacity of the present cathode materials synthesized based on bimetallic organic frameworks is significantly higher than that of other spinel-type and vanadiumbased oxide cathode materials obtained by doping with heteroatoms and carbon coating, as reported in the literature. 21,22,28,[42][43][44][45][46][47][48][49] Meanwhile, compared with vanadiumbased oxides reported in the existing literature, the currently designed electrode materials have a higher capacity retention rate. From Fig.…”

High-capacity vanadium nitride anode materials synthesized by melamine-assisted pyrolysis

“…However, its disadvantages limit its development: repeated charging and discharging in an alkaline electrolyte cause the dissolution of vanadium nitride materials, and this irreversible dissolution will continue to consume the electrode material, leading to the degradation of the capacity. Accordingly, in an attempt to solve this problem, researchers proposed four solutions: (i) preparing composites or nanosizing; 42 (ii) preparing composites with unique structures; (iii) preparing gel electrolytes; and (iv) adding a protective film on the surface of the material. Among them, the preparation of composites 43 with special structures is essential for ameliorating the structural stability and electrochemical properties of vanadium nitride, from which a number of preparation methods have been derived.…”