Journal of Energy Storage, volume 26, pages 100947
PEO/LAGP hybrid solid polymer electrolytes for ambient temperature lithium batteries by solvent-free, “one pot” preparation
Giulia Piana
1
,
Federico Bella
1
,
Francesco Geobaldo
2
,
Giuseppina Meligrana
1
,
Jijeesh Ravi Nair
1
Publication type: Journal Article
Publication date: 2019-12-01
Journal:
Journal of Energy Storage
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor: 9.4
ISSN: 2352152X, 2352152X
Electrical and Electronic Engineering
Energy Engineering and Power Technology
Renewable Energy, Sustainability and the Environment
Abstract
Here, we report hybrid solid polymer electrolytes (HSPE) obtained by rapid, truly solvent-free, thus scalable preparation process. HSPE composition is very simple: a LiTFSI added poly(ethylene oxide) (PEO) polymer matrix encompassing NASICON-type Li1.5Al0.5Ge1.5(PO4)3 (LAGP) super Li+ ion conducting ceramic. Homogeneous, self-standing, mechanically robust solid electrolyte films are obtained by simply mixing in “one pot” and hot pressing the solid mixture of dry powders at moderate temperature. Noteworthy, unlike several other super ionic conductors used for composite electrolytes, LAGP is relatively stable in air atmosphere and can be processed in a dry-room, which is more favorable, cheap and scalable than Ar-filled dry glove box for industrial fabrication of safe lithium batteries. The proper, homogeneous mixing of LAGP powder, PEO and LiTFSI leads to HSPE with interesting electrochemical behavior in lab-scale lithium cells, especially under high current regimes, and even at ambient temperature. HSPE-based cells outperform the PEO-LiTFSI-based counterpart, in terms of specific capacity output (about 70% of the theoretical value retained at very high 2C rate), limited fading and excellent Coulombic efficiency (>99.5%) even at low rate. Interfacial stability issues remain to be solved, chiefly linked to the reactivity of LAGP in contact with lithium metal, but results here proposed represent a step further toward truly all-solid-state batteries conceived for high energy/power technologies, assuring safety and performance in a wide range of operating conditions.
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Citations by publishers
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Elsevier
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1 publication, 0.77%
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1 publication, 0.77%
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- We do not take into account publications without a DOI.
- Statistics recalculated only for publications connected to researchers, organizations and labs registered on the platform.
- Statistics recalculated weekly.
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Piana G. et al. PEO/LAGP hybrid solid polymer electrolytes for ambient temperature lithium batteries by solvent-free, “one pot” preparation // Journal of Energy Storage. 2019. Vol. 26. p. 100947.
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Piana G., Bella F., Geobaldo F., Meligrana G., Nair J. R. PEO/LAGP hybrid solid polymer electrolytes for ambient temperature lithium batteries by solvent-free, “one pot” preparation // Journal of Energy Storage. 2019. Vol. 26. p. 100947.
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TY - JOUR
DO - 10.1016/j.est.2019.100947
UR - https://doi.org/10.1016/j.est.2019.100947
TI - PEO/LAGP hybrid solid polymer electrolytes for ambient temperature lithium batteries by solvent-free, “one pot” preparation
T2 - Journal of Energy Storage
AU - Piana, Giulia
AU - Bella, Federico
AU - Geobaldo, Francesco
AU - Meligrana, Giuseppina
AU - Nair, Jijeesh Ravi
PY - 2019
DA - 2019/12/01 00:00:00
PB - Elsevier
SP - 100947
VL - 26
SN - 2352-152X
SN - 2352-152X
ER -
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@article{2019_Piana,
author = {Giulia Piana and Federico Bella and Francesco Geobaldo and Giuseppina Meligrana and Jijeesh Ravi Nair},
title = {PEO/LAGP hybrid solid polymer electrolytes for ambient temperature lithium batteries by solvent-free, “one pot” preparation},
journal = {Journal of Energy Storage},
year = {2019},
volume = {26},
publisher = {Elsevier},
month = {dec},
url = {https://doi.org/10.1016/j.est.2019.100947},
pages = {100947},
doi = {10.1016/j.est.2019.100947}
}