4.6 Article

Aqueous rechargeable Zn-ion batteries: an imperishable and high-energy Zn2V2O7 nanowire cathode through intercalation regulation

Journal

JOURNAL OF MATERIALS CHEMISTRY A
Volume 6, Issue 9, Pages 3850-3856

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c7ta11237h

Keywords

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Funding

  1. Global Frontier Program through the Global Frontier Hybrid Interface Materials (GFHIM) of the National Research Foundation of Korea (NRF) - Ministry of Science, ICT & Future Planning [2013M3A6B1078875]
  2. National Research Foundation of Korea (NRF) - Korea government (MSIP) [2017R1A2A1A17069397]
  3. National Research Foundation of Korea [2017R1A2A1A17069397] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)

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The use of transition-metal vanadium oxides (TMVOs) for the production of safe and low-cost aqueous rechargeable zinc-ion batteries (ARZIBs) has not been fully explored in detail so far. The electrochemistry involved in multistep Zn2+ insertion/de-insertion induced by vanadium reduction/oxidation in layered -Zn2V2O7 upon cycling has been interpreted. Layered -Zn2V2O7 exhibits an excellent specific energy of 166 W h kg(-1) and a high capacity retention of 85% after 1000 cycles at an ultra-high current drain of 4000 mA g(-1).

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