Chemical Engineering Journal, volume 461, pages 141995

Li+ affinity ultra-thin solid polymer electrolyte for advanced all-solid-state lithium-ion battery

Publication typeJournal Article
Publication date2023-04-01
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor15.1
ISSN13858947, 03009467
General Chemistry
General Chemical Engineering
Industrial and Manufacturing Engineering
Environmental Chemistry
Abstract
The chasing for all-solid-state lithium-ion batteries (ASSLIBs) is based on the need for safer and higher energy density batteries. In this regard, solid polymer electrolytes (SPEs) are well-renowned for their processability and electrochemical stability, yet slimmer and more flexible SPE with higher ionic conductivity is still desired. Herein, an ultrathin (35 µm), rigidity-enhancing co-blending SPEs design using electrospinning was proposed, blending bio-polyamide with a N-substituted pyrrolidone ring (IBD) with polyethylene oxide/lithium bis(trifluoromethanesulfonyl)imide (PEO/LiTFSI). IBD is confirmed to possess the dominant Li+ affinity. Then IBD with flexible chain segments of PEO, triggers a concerted ion-transport mechanism synergistically, in which IBD is responsible for the processes of enhanced ion-pair dissociation resulting in dynamic association between the mobile cations and the long-chain molecules that constitute the SPE. Meanwhile, it could broaden the ion transport channel in some extent. The ionic conductivity of the SPE is up to 4.26 × 10−4 S cm−1 at 50 ℃. Furthermore, the high strength modulus, low crystallinity, and ultra-thin characteristic of IBD-PEO/LiTFSI power-assisted the ASSLIBs of LiFePO4//Li to achieve extraordinary cycle performance (80.5 % capacity retention after 580 cycles at C/2 rate) and the average coulomb efficiency exceeds 99.5 % at 50 ℃. Moreover, it has the ability to withstand folding and bending conditions.

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GOST |
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GOST Copy
Wang S. et al. Li+ affinity ultra-thin solid polymer electrolyte for advanced all-solid-state lithium-ion battery // Chemical Engineering Journal. 2023. Vol. 461. p. 141995.
GOST all authors (up to 50) Copy
Wang S., Li T., Huang W., Wang L., Li J. Li+ affinity ultra-thin solid polymer electrolyte for advanced all-solid-state lithium-ion battery // Chemical Engineering Journal. 2023. Vol. 461. p. 141995.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1016/j.cej.2023.141995
UR - https://doi.org/10.1016/j.cej.2023.141995
TI - Li+ affinity ultra-thin solid polymer electrolyte for advanced all-solid-state lithium-ion battery
T2 - Chemical Engineering Journal
AU - Wang, Shuohan
AU - Li, Jian
AU - Li, Tengfei
AU - Huang, Weixiong
AU - Wang, Lihua
PY - 2023
DA - 2023/04/01 00:00:00
PB - Elsevier
SP - 141995
VL - 461
SN - 1385-8947
SN - 0300-9467
ER -
BibTex
Cite this
BibTex Copy
@article{2023_Wang,
author = {Shuohan Wang and Jian Li and Tengfei Li and Weixiong Huang and Lihua Wang},
title = {Li+ affinity ultra-thin solid polymer electrolyte for advanced all-solid-state lithium-ion battery},
journal = {Chemical Engineering Journal},
year = {2023},
volume = {461},
publisher = {Elsevier},
month = {apr},
url = {https://doi.org/10.1016/j.cej.2023.141995},
pages = {141995},
doi = {10.1016/j.cej.2023.141995}
}
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