EFFECT ON PROPERTIES OF PVDF-HFP BASED COMPOSITE POLYMER ELECTROLYTE DOPED WITH NANO-SIO2

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LI YAN; LI XINHAI; GUO HUAJUN; WANG ZHIXING; LI TAO

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Journal: Iranian Polymer Journal Year:2014 | Volume:23 | Issue:6 Page(s): 487-494

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Title

EFFECT ON PROPERTIES OF PVDF-HFP BASED COMPOSITE POLYMER ELECTROLYTE DOPED WITH NANO-SIO2

Author(s)

Keywords

PVDF-HFP

COMPOSITE POLYMER ELECTROLYTE

NANO-SIO2

LITHIUM ION BATTERY

Abstract

Various kinds of nano-SiO2 using different catalysts were obtained and characterized by scanning electron microscope (SEM) technique. The results showed that the nano-SiO2 using NH3.H2O as catalyst presented the best morphology. Poly(vinylidenefluoride-co-hexafluoropropylene) (PVDF-HFP) based COMPOSITE POLYMER ELECTROLYTE (CPE) membranes doped with different contents of nano-SiO2 were prepared by phase inversion method. The as-prepared CPE membranes were immersed into 1.0 M LiPF6-EC/DMC/EMC electrolytes for 0.5 h to be activated. The physicochemical and electrochemical properties of the CPEs were characterized by SEM, X-ray diffraction (XRD), electrochemical impedance spectroscopy (EIS), and linear sweep voltammetry (LSV) techniques. The results indicate that the CPEs doped with 10 % nano-SiO2 exhibit the best performance. SEM micrographs showed that the CPE membranes have uniform surface with abundant interconnected micro-pores, and the uptake ratio was up to 104.4 wt%. EIS and LSV analysis also showed that the ionic conductivity at room temperature and electrochemical stability window of the modified membrane can reach 3.372 mS cm-1 and 4.7 V, respectively. The interfacial resistance R i was 670 W cm-2 in the first day, then increased to a stable value of about 850 W cm-2 in 10 days storage at room temperature. The Li/As-fabricated CPEs/LiCoO2 cell also showed good charge-discharge performance, which suggested that the prepared CPE membranes can be used as potential electrolytes for lithium ion batteries.

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APA: Copy

LI, YAN, LI, XINHAI, GUO, HUAJUN, WANG, ZHIXING, & LI, TAO. (2014). EFFECT ON PROPERTIES OF PVDF-HFP BASED COMPOSITE POLYMER ELECTROLYTE DOPED WITH NANO-SIO₂. IRANIAN POLYMER JOURNAL (ENGLISH), 23(6), 487-494. SID. https://sid.ir/paper/634226/en

Vancouver: Copy

LI YAN, LI XINHAI, GUO HUAJUN, WANG ZHIXING, LI TAO. EFFECT ON PROPERTIES OF PVDF-HFP BASED COMPOSITE POLYMER ELECTROLYTE DOPED WITH NANO-SIO₂. IRANIAN POLYMER JOURNAL (ENGLISH)[Internet]. 2014;23(6):487-494. Available from: https://sid.ir/paper/634226/en

IEEE: Copy

YAN LI, XINHAI LI, HUAJUN GUO, ZHIXING WANG, and TAO LI, “EFFECT ON PROPERTIES OF PVDF-HFP BASED COMPOSITE POLYMER ELECTROLYTE DOPED WITH NANO-SIO₂,” IRANIAN POLYMER JOURNAL (ENGLISH), vol. 23, no. 6, pp. 487–494, 2014, [Online]. Available: https://sid.ir/paper/634226/en

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