fig10

Figure 10. (A) XRD characterization of the VOP cathode at different charge-discharge stages and (B) phase transition disclosed from the differential capacity curve at various concentrations. Reproduced with permission^[162]. Copyright 2019, Wiley-VCH GmbH. (C) Cycling performance of Co_0.247V₂O₅·0.944H₂O at 4 A g^-1. Reproduced with permission^[151]. Copyright 2019, Wiley-VCH GmbH. (D) Charge-discharge curves of H₁₁Al₂V₆O_23.2 at 0.1-5.0 A g^-1. Reproduced with permission^[56]. Copyright 2020, Elsevier. (E) Cycling performance of (NH₄)_0.38V₂O₅/CNTs paper electrode. Reproduced with permission^[160]_. Copyright 2021, Elsevier. (F) Typical charge-discharge curves of NH₄V₃O₈·0.5H₂O and PANI- NH₄V₃O₈·0.5H₂O electrodes at 1 A g^-1. Reproduced with permission^[57]. Copyright 2022, Elsevier. Typical charge-discharge curves of NH₄V₄O₁₀ at (G) 0.2-1.4 V, (H) 0.2-1.6 V, and (I) 0.2-1.8 V. Reproduced with permission under the terms of the Creative Commons Attribution^[161]. Copyright 2023, the Author(s), Wiley-VCH GmbH.