Imperial College London
Alternate

Dr Ainara Aguadero

Faculty of Engineering, Department of Materials

Visiting Reader
 
 
 
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Contact

 

+44 (0)20 7594 5174a.aguadero CV

 
 
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Location

 

1.07Royal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Manalastas:2019:10.1016/j.jpowsour.2018.11.041,
author = {Manalastas, W and Rikarte, J and Chater, RJ and Brugge, R and Aguadero, A and Buannic, L and Llordés, A and Aguesse, F and Kilner, J},
doi = {10.1016/j.jpowsour.2018.11.041},
journal = {Journal of Power Sources},
pages = {287--293},
title = {Mechanical failure of garnet electrolytes during Li electrodeposition observed by in-operando microscopy},
url = {http://dx.doi.org/10.1016/j.jpowsour.2018.11.041},
volume = {412},
year = {2019}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Metallic Li anodes are key to reaching high energy densities in next-generation solid-state batteries, however, major problems are the non-uniform deposition of Li at the interface and the penetrative power of Li metal during operation, which cause failure of the ceramic electrolyte, internal short-circuits and a premature end of battery life. In this work, we explore the anode-electrolyte interface instability of a Li metal-garnet electrolyte system during Li electrodeposition, and its implications for mechanical fracture, Li metal propagation, and electrolyte failure. The degradation mechanism was followed step-by-step during in-operando electrochemical cycling using optical and scanning electron microscopy. High amounts of Li electrodeposition in a localized zone of the interface lead to ceramic fracture followed by an electrode-to-electrode electrical connection via a conductor Li metal filament. This work enables deeper understanding of battery failure modes in all-solid-state batteries containing a ceramic electrolyte membrane.
AU  - Manalastas,W
AU  - Rikarte,J
AU  - Chater,RJ
AU  - Brugge,R
AU  - Aguadero,A
AU  - Buannic,L
AU  - Llordés,A
AU  - Aguesse,F
AU  - Kilner,J
DO  - 10.1016/j.jpowsour.2018.11.041
EP  - 293
PY  - 2019///
SN  - 0378-7753
SP  - 287
TI  - Mechanical failure of garnet electrolytes during Li electrodeposition observed by in-operando microscopy
T2  - Journal of Power Sources
UR  - http://dx.doi.org/10.1016/j.jpowsour.2018.11.041
UR  - http://hdl.handle.net/10044/1/65487
VL  - 412
ER  -
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