Large scale flexible solid state symmetric supercapacitor through inexpensive solution processed V2O5 complex surface architecture Articles uri icon

publication date

  • July 2017

start page

  • 382

end page

  • 389


  • 242

International Standard Serial Number (ISSN)

  • 0013-4686

Electronic International Standard Serial Number (EISSN)

  • 1873-3859


  • Complex nanostructured morphology of V2O5 has been grown on pliable stainless steel substrate (SS) through simple and inexpensive chemical bath deposition (CBD) for all-solid state flexible supercapacitor (SC). The structure and morphology of the synthesized V2O5 thin films revealed the formation of intermixed flakes. High specific capacitance of 735 F g(-1\) (at scan rate of 1 mV s(-1)) of V2O5 through liquid configuration motivated us to form complete flexible all-solid state symmetric supercapacitor (FASC) device. Remarkable specific capacitance of 358 F g(-1). With 1.8 V wide potential window and high value of capacitive retention of 88% over 1000 cycles has been achieved for FASC. Furthermore, the origin of capacitive behavior from dual contributions of surface-controlled and diffusion-controlled charge components has been evaluated to identify the dominating nature in electrochemical reactions. As practical applicability, pliability of electrode has been tested at 175 degrees bending angle along with the integration to large scale electrode dimension (11 x 4 cm(2)).


  • Chemistry


  • chemical method; v2o5 lakes; supercapacitor; symmetric device