Electrochemical characterization of poly(vinylidene fluoride-co-hexafluoro propylene) based electrospun gel polymer electrolytes incorporating room temperature ionic liquids as green electrolytes for lithium batteries

Headway in rhodanide anion based ternary gel polymer electrolytes (TILGPEs) for applications in rechargeable lithium ion batteries: an efficient route to achieve high electrochemical and cycling performances

“…7(b), the value of E a reduces gradually with increase in electrolyte mixture content which may due to the enhancement 19216 | RSC Adv., 2017, 7,[19211][19212][19213][19214][19215][19216][19217][19218][19219][19220][19221][19222] This journal is © The Royal Society of Chemistry 2017 of exibility of polymer chain thereby increases the amorphous nature and charge carriers in polymer host matrix. 52 This result rmly strengthens the results obtained by XRD and DSC analyses as discussed earlier.…”

Lithium‐Ion Battery Separators for Ionic‐Liquid Electrolytes: A Review

“…EIS in a symmetrical lithium cell showed that during storage the electrolyte resistance is relatively constant which is consistent with a separator with high electrolyte retention. The interfacial resistance, however, did change during storage time which was attributed to formation of an SEI film on the metallic lithium electrode.…”

“…This separator has a smaller fiber diameter and correspondingly higher porosity compared to the PVDF–HFP electrospun separators produced, which had 2 µm diameter fibers and a porosity of 60% . The electrolyte uptake was 600% to 700% and a good electrolyte retention rate was noted, which the authors attributed to the small average fiber diameter . When wet with 1 m LiTFSI IL electrolyte the electrospun separator had an ionic conductivity from 2.4 mS cm −1 with BMITFSI up to 4.5 mS cm −1 with EMITFSI, this is in the range expected based on previous findings for PVDF–HFP electrospun separators with imidazolium‐ and TFSI − ‐based IL electrolytes …”

“…After studying separators containing ceramic particles, a pure PVDF–HFP electrospun separator was investigated with IL electrolytes, 1 m LiTFSI in imidazolium TFSI − IL electrolytes . The separator porosity, electrolyte uptake, ionic conductivity, lithium SEI characteristics, and LFP | Li cell capacity were reported with LiTFSI in EMITFSI, PMITFSI or BMITFSI IL electrolyte.…”

Effects of macromolecular configuration of thermally sensitive binder in lithium‐ion battery

“…The HFP component renders the binder phase thermally sensitive yet also more amorphous and more susceptive to electrolyte attack. Even though the ability to absorb electrolyte enhances the ionic conductivity, it is only favorable when the material is used as the membrane separator, and only with a low HFP content less than 24 wt % . When the HFP content is above 30 wt %, PVDF‐HFP absorbs much electrolyte, swells, and loosens the contact among the particles of AMs and current collector.…”