In:
CrystEngComm, Royal Society of Chemistry (RSC), Vol. 23, No. 48 ( 2021), p. 8650-8659
Abstract:
With the increase in the demand for future deformable and wearable devices, flexible aqueous zinc-ion batteries are deemed to show promise as a flexible electronic power supply. In this study, a type of a binder-less cathode material with a mass loading of 4.5 mg cm −2 is successfully synthesized by a one-pot solvothermal method. By using a VO 2 (B)@CFS (carbon fiber sheet) nanoflake array as the cathode material in zinc-ion batteries, the specific discharge capacity of the VO 2 (B)@CFS nanoparticle array reaches up to 386.2 mA h g −1 at 0.2 A g −1 , with an 88.6% capacity retention after 100 cycles; the excellent electrochemical performance is mainly attributed to the rapid ion or electron transfer rendered by the CFS-supported nano-chip array structure. Moreover, the electrochemical performance of VO 2 (B)@CFS using the cost-effective ZnSO 4 electrolyte is compared with that using the Zn(CF 3 SO 3 ) 2 electrolyte. In addition, two assembled 3 cm × 1 cm Zn/VO 2 (B)@CFS flexible batteries connected in series can power a small light-emitting diode (LED) for up to 150 h without going out, providing a suitable design for a flexible cathode in aqueous zinc-ion batteries. This excellent cathode material is an ideal material for high-power flexible water-borne zinc-ion batteries.
Type of Medium:
Online Resource
ISSN:
1466-8033
Language:
English
Publisher:
Royal Society of Chemistry (RSC)
Publication Date:
2021
detail.hit.zdb_id:
2025075-7
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