Energy Storage Materials, volume 48, pages 375-383

Topology crafting of polyvinylidene difluoride electrolyte creates ultra-long cycling high-voltage lithium metal solid-state batteries

Jinshuo Mi 1
Jiabin Ma 1
Likun Chen 1
Chen Lai 2
Yang Ke 1
Jie Biao 1
Heyi Xia 1
Xin Song 3
Wei Lv 1
Guiming Zhong 4
Yan-bing He 1
Publication typeJournal Article
Publication date2022-06-01
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor20.4
ISSN24058297, 24058297
General Materials Science
Energy Engineering and Power Technology
Renewable Energy, Sustainability and the Environment
Abstract
Solid-state polymer electrolytes (SPEs) present poor anti-oxidation ability, low ionic conductivity and high flammability, which greatly restrict their applications in high-voltage solid-state lithium metal batteries. Herein, we uniformly graft the lithium phenyl phosphate (LPPO) on polyvinylidene difluoride (PVDF) by dehydrofluorination and Friedel-Crafts alkylation reactions to create a multifunctional PVDF-LPPO SPE with branched topology. The LPPO serves as a single ion conductor, flame retardant and cathode electrolyte interface formation agent not only greatly improves the ionic conductivity, fireproof property and electrochemical stability of SPE, but also remarkably suppresses the side reactions with both cathode and lithium metal anode. An additional and uniform Li-ion transmission path is constructed by LPPO to remarkably reduce the activation energy and enhance the lithium-ion transference number of PVDF-LPPO SPE. The solid-state LiNi 0.8 Co 0.1 Mn 0.1 O 2 ||PVDF-LPPO||Li batteries stably cycle for 1550 times between 2.8 and 4.3 V at 1 C and 1000 times under a high charging voltage of 4.5 V. The transformation of layered structure to rock-salt phase of NCM811 particles is greatly suppressed during long cycling by a stable and uniform LPPO derived cathode electrolyte interface. This work provides a precise operation method for modifying structure of polymer electrolyte to achieve outstanding special properties of lithium metal solid-state batteries. A multifunctional solid-state polymer electrolyte (SPE) with branched topology is developed by accurately operate the molecular structure of PVDF and uniformly graft the phosphorus derivatives on its chains. The high-voltage lithium metal batteries assembled present good safety performance, excellent ions transport capability and ultra-long cyclic stability even charged to 4.5 V.

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GOST Copy
Mi J. et al. Topology crafting of polyvinylidene difluoride electrolyte creates ultra-long cycling high-voltage lithium metal solid-state batteries // Energy Storage Materials. 2022. Vol. 48. pp. 375-383.
GOST all authors (up to 50) Copy
Mi J., Ma J., Chen L., Lai C., Yang Ke, Biao J., Xia H., Song X., Lv W., Zhong G., He Y. Topology crafting of polyvinylidene difluoride electrolyte creates ultra-long cycling high-voltage lithium metal solid-state batteries // Energy Storage Materials. 2022. Vol. 48. pp. 375-383.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1016/j.ensm.2022.02.048
UR - https://doi.org/10.1016/j.ensm.2022.02.048
TI - Topology crafting of polyvinylidene difluoride electrolyte creates ultra-long cycling high-voltage lithium metal solid-state batteries
T2 - Energy Storage Materials
AU - Mi, Jinshuo
AU - Ma, Jiabin
AU - Chen, Likun
AU - Lai, Chen
AU - Yang Ke
AU - Biao, Jie
AU - Xia, Heyi
AU - Song, Xin
AU - Lv, Wei
AU - Zhong, Guiming
AU - He, Yan-bing
PY - 2022
DA - 2022/06/01 00:00:00
PB - Elsevier
SP - 375-383
VL - 48
SN - 2405-8297
SN - 2405-8297
ER -
BibTex
Cite this
BibTex Copy
@article{2022_Mi,
author = {Jinshuo Mi and Jiabin Ma and Likun Chen and Chen Lai and Yang Ke and Jie Biao and Heyi Xia and Xin Song and Wei Lv and Guiming Zhong and Yan-bing He},
title = {Topology crafting of polyvinylidene difluoride electrolyte creates ultra-long cycling high-voltage lithium metal solid-state batteries},
journal = {Energy Storage Materials},
year = {2022},
volume = {48},
publisher = {Elsevier},
month = {jun},
url = {https://doi.org/10.1016/j.ensm.2022.02.048},
pages = {375--383},
doi = {10.1016/j.ensm.2022.02.048}
}
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