TY - JOUR
T1 - Ionic conductivity, Na plating-stripping, and battery performance of solid polymer Na ion electrolyte based on poly(vinylidene fluoride) and poly(vinyl pyrrolidone)
AU - Bristi, Afshana Afroj
AU - Samson, Alfred Junio
AU - Sivakumaran, Abinaya
AU - Butler, Shantel
AU - Thangadurai, Venkataraman
N1 - This work was funded by the Natural Sciences and Engineering Research Council of Canada (NSERC) Collaborative Research and Development (CRD) Grants and Geometric Energy Corporation, Calgary.
PY - 2022/7/25
Y1 - 2022/7/25
N2 - Solid-state sodium-ion batteries (ss-SIBs) are a promising alternative to commercially available lithium-ion batteries for next-generation energy storage applications due to the abundance and cost-effectiveness of sodium over lithium. Herein, using a facile solution casting process, a high sodium-ion conductive, filler-less composite solid polymer electrolyte (SPE) film based on poly(vinylidene fluoride) polymer, poly(vinyl pyrrolidone) (PVP) binder, and NaPF6salt for ss-SIB has been successfully fabricated. Total conductivities of 8.51 × 10-4and 8.36 × 10-3S cm-1at 23 and 83 °C, respectively, were observed from the SPE. A hybrid symmetric half-cell assembly using Na electrode and 1 M NaClO4in ethylene carbonate (EC) and propylene carbonate (PC) (EC/PC = 1:1 wt %) electrolyte showed excellent Na plating-stripping performance at 10 mA cm-2at 23 °C. The study showed that PVP binder played an important role in achieving good Na ion conductivity and excellent Na plating-stripping performance, highlighting the applicability of the as-prepared SPE in next-generation high-power rechargeable SIBs. A full cell with an SPE, a Na anode, and a Na3V2(PO4)3cathode showed a discharge capacity of 93.2 mAh g-1at 0.1 C with 86% capacity retention and 99.68% Coulombic efficiency for 100 cycles.
AB - Solid-state sodium-ion batteries (ss-SIBs) are a promising alternative to commercially available lithium-ion batteries for next-generation energy storage applications due to the abundance and cost-effectiveness of sodium over lithium. Herein, using a facile solution casting process, a high sodium-ion conductive, filler-less composite solid polymer electrolyte (SPE) film based on poly(vinylidene fluoride) polymer, poly(vinyl pyrrolidone) (PVP) binder, and NaPF6salt for ss-SIB has been successfully fabricated. Total conductivities of 8.51 × 10-4and 8.36 × 10-3S cm-1at 23 and 83 °C, respectively, were observed from the SPE. A hybrid symmetric half-cell assembly using Na electrode and 1 M NaClO4in ethylene carbonate (EC) and propylene carbonate (PC) (EC/PC = 1:1 wt %) electrolyte showed excellent Na plating-stripping performance at 10 mA cm-2at 23 °C. The study showed that PVP binder played an important role in achieving good Na ion conductivity and excellent Na plating-stripping performance, highlighting the applicability of the as-prepared SPE in next-generation high-power rechargeable SIBs. A full cell with an SPE, a Na anode, and a Na3V2(PO4)3cathode showed a discharge capacity of 93.2 mAh g-1at 0.1 C with 86% capacity retention and 99.68% Coulombic efficiency for 100 cycles.
KW - Ionic conductivity
KW - Plating-stripping
KW - Solid polymer electrolyte
KW - Solid-state sodium-ion battery
KW - Symmetric Na cell
U2 - 10.1021/acsaem.2c01296
DO - 10.1021/acsaem.2c01296
M3 - Article
AN - SCOPUS:85135087366
SN - 2574-0962
VL - 5
SP - 8812
EP - 8822
JO - ACS Applied Energy Materials
JF - ACS Applied Energy Materials
IS - 7
ER -
