Applied Surface Science, volume 574, pages 151593

PVDF-HFP based polymer electrolytes with high Li+ transference number enhancing the cycling performance and rate capability of lithium metal batteries

Publication typeJournal Article
Publication date2022-02-01
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor6.7
ISSN01694332
Surfaces, Coatings and Films
General Chemistry
General Physics and Astronomy
Condensed Matter Physics
Surfaces and Interfaces
Abstract
• PVDF-HFP based polymer films possess good wettability and liquid retention ability. • GPEs present a high ionic conductivity of 1.82×10 −3 S·cm −1 at 25 °C. • The lithium ions transference number of GPEs is up to 0.513 at 25 °C. • LFP|GPEs|Li cell displays the capacity retention of 92% after 1000 cycles at 1 C. Lithium metal batteries are confronted with safety issues in liquid electrolyte systems owing to rapid growth of lithium dendrite and uneven lithium deposition. Exploration of gel polymer electrolytes (GPEs) with excellent ionic conductivity and high Li + migration number is a possible strategy to replace liquid electrolyte. Herein, a high-powered GPEs relied on poly (vinylidene fluoride-hexafluoro propylene) (PVDF-HFP) modified by polymer polyethylene glycol (PEG) and lithium montmorillonite (LiMNT) via bond interactions is reported. The prepared porous polymer electrolyte presents a captivating ionic conductivity of 1.82 × 10 −3 S·cm −1 and lithium ions transference number up to 0.513 at 25 °C. In view of the eminent ionic conductivity and efficient migration number of Li + , the three-dimensional porous polymer electrolyte is very conducive to the fast transport and stable deposition of lithium ions, restraining the occurrence and growth rate of lithium dendrites, which improves the cycle performance and rate capability of lithium battery. LiFePO 4 | PPL122 electrolyte |Li battery delivers a desired cycling performance with a capacity retention of 92% after 1000 cycles at 1 C.

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Wang Y. et al. PVDF-HFP based polymer electrolytes with high Li+ transference number enhancing the cycling performance and rate capability of lithium metal batteries // Applied Surface Science. 2022. Vol. 574. p. 151593.
GOST all authors (up to 50) Copy
Wang Y., Huang K., Zhang P., Li H., Mi H. PVDF-HFP based polymer electrolytes with high Li+ transference number enhancing the cycling performance and rate capability of lithium metal batteries // Applied Surface Science. 2022. Vol. 574. p. 151593.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1016/j.apsusc.2021.151593
UR - https://doi.org/10.1016/j.apsusc.2021.151593
TI - PVDF-HFP based polymer electrolytes with high Li+ transference number enhancing the cycling performance and rate capability of lithium metal batteries
T2 - Applied Surface Science
AU - Wang, YanYi
AU - Huang, Kaixiong
AU - Zhang, Peixin
AU - Li, Haowen
AU - Mi, Hongwei
PY - 2022
DA - 2022/02/01 00:00:00
PB - Elsevier
SP - 151593
VL - 574
SN - 0169-4332
ER -
BibTex
Cite this
BibTex Copy
@article{2022_Wang,
author = {YanYi Wang and Kaixiong Huang and Peixin Zhang and Haowen Li and Hongwei Mi},
title = {PVDF-HFP based polymer electrolytes with high Li+ transference number enhancing the cycling performance and rate capability of lithium metal batteries},
journal = {Applied Surface Science},
year = {2022},
volume = {574},
publisher = {Elsevier},
month = {feb},
url = {https://doi.org/10.1016/j.apsusc.2021.151593},
pages = {151593},
doi = {10.1016/j.apsusc.2021.151593}
}
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