Journal of Power Sources, volume 515, pages 230622

The high-strength and ultra-thin composite electrolyte using one-step electrospinning/electrostatic spraying process for interface control in all-solid-state lithium metal battery

Publication typeJournal Article
Publication date2021-12-01
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor9.2
ISSN03787753
Physical and Theoretical Chemistry
Electrical and Electronic Engineering
Energy Engineering and Power Technology
Renewable Energy, Sustainability and the Environment
Abstract
Using solid polymer electrolytes to replace liquid electrolytes is an effective strategy to improve the energy density and safety of lithium metal batteries. Herein, an ultra-thin and fast-ion-conducting composite polymer electrolyte is firstly prepared through novel one-step electrospinning/electrostatic spraying process. Different from the common solution casting method, the preparation process can ensure sufficient contact between the polymer and nanofibers, thereby effectively reducing the existence of internal defects in the electrolyte. Meanwhile, the ultra-thin thickness (∼40 μm) helps to achieve maximized interfacial contact and good compatibility, and the electrostatic spraying process can reduce the crystallinity of Polyethylene oxide (PEO) polymer under the action of electrostatic charge repulsion. Furthermore, multiple hydrogen bonding interactions can not only form a three-dimensional continuous ion conduction path at the polymer interface, but also enhance the mechanical and thermal stability of the composite electrolyte. The prepared Poly-m-phenyleneisophthalamide (PMIA)-PEO composite electrolyte exhibits superior ionic conductivity (2.9 × 10 −4 S cm −1 at 30 °C), high mechanical strength (10.4 MPa) and wide electrochemical stability window (5.4 V). In particular, the composite electrolyte-based Li/Li symmetric cell and high-voltage LiNi 0·8 Mn 0·1 Co 0·1 O 2 (NMC)/Li cell exhibit superior cycling stability, which verify the practical applicability of the all-solid-state composite electrolyte in Li metal batteries. • A novel process is used to prepare all-solid-state composite polymer electrolyte. • The prepared electrolyte has superior ionic conductivity and mechanical strength. • The high-voltage cell with the composite electrolyte shows excellent cycle stability.

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Gao L. et al. The high-strength and ultra-thin composite electrolyte using one-step electrospinning/electrostatic spraying process for interface control in all-solid-state lithium metal battery // Journal of Power Sources. 2021. Vol. 515. p. 230622.
GOST all authors (up to 50) Copy
Gao L., Liang H., Li J., Cheng B., Deng N., Kang W. The high-strength and ultra-thin composite electrolyte using one-step electrospinning/electrostatic spraying process for interface control in all-solid-state lithium metal battery // Journal of Power Sources. 2021. Vol. 515. p. 230622.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1016/j.jpowsour.2021.230622
UR - https://doi.org/10.1016/j.jpowsour.2021.230622
TI - The high-strength and ultra-thin composite electrolyte using one-step electrospinning/electrostatic spraying process for interface control in all-solid-state lithium metal battery
T2 - Journal of Power Sources
AU - Gao, Lu
AU - Liang, Haoran
AU - Li, Jianxin
AU - Cheng, Bowen
AU - Deng, Nanping
AU - Kang, Wei-min
PY - 2021
DA - 2021/12/01 00:00:00
PB - Elsevier
SP - 230622
VL - 515
SN - 0378-7753
ER -
BibTex
Cite this
BibTex Copy
@article{2021_Gao,
author = {Lu Gao and Haoran Liang and Jianxin Li and Bowen Cheng and Nanping Deng and Wei-min Kang},
title = {The high-strength and ultra-thin composite electrolyte using one-step electrospinning/electrostatic spraying process for interface control in all-solid-state lithium metal battery},
journal = {Journal of Power Sources},
year = {2021},
volume = {515},
publisher = {Elsevier},
month = {dec},
url = {https://doi.org/10.1016/j.jpowsour.2021.230622},
pages = {230622},
doi = {10.1016/j.jpowsour.2021.230622}
}
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