Abstract
Although Li metal has long been considered to be the ideal anode material for Li rechargeable batteries, our limited understanding of the complex mechanism of Li plating has hindered the widespread deployment of Li metal anodes. Therefore, operando studies are required to unambiguously reveal the complex mechanistic steps involved. In this study, we employed synchrotron-based X-ray imaging methods to visualize the evolution of Li plating/stripping under operando and, more importantly, practical conditions for battery operation, providing detailed insights into morphology evolution during Li plating. The effects of critical battery operating parameters, including concentration of Li salts, current density, ionic strength, and various electrolytes and additives, on Li plating/stripping have been studied. The delicate interplay of these conditions on the resulting Li metal morphology has been characterized for the first time.
| Original language | English |
|---|---|
| Pages (from-to) | 8441-8449 |
| Number of pages | 9 |
| Journal | Journal of the American Chemical Society |
| Volume | 141 |
| Issue number | 21 |
| DOIs | |
| Publication status | Published - 2019 May 29 |
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ASJC Scopus subject areas
- Catalysis
- Chemistry(all)
- Biochemistry
- Colloid and Surface Chemistry
Cite this
Regulating Key Variables and Visualizing Lithium Dendrite Growth : An Operando X-ray Study. / Yu, Seung-Ho; Huang, Xin; Brock, Joel D.; Abruña, Héctor D.
In: Journal of the American Chemical Society, Vol. 141, No. 21, 29.05.2019, p. 8441-8449.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Regulating Key Variables and Visualizing Lithium Dendrite Growth
T2 - An Operando X-ray Study
AU - Yu, Seung-Ho
AU - Huang, Xin
AU - Brock, Joel D.
AU - Abruña, Héctor D.
PY - 2019/5/29
Y1 - 2019/5/29
N2 - Although Li metal has long been considered to be the ideal anode material for Li rechargeable batteries, our limited understanding of the complex mechanism of Li plating has hindered the widespread deployment of Li metal anodes. Therefore, operando studies are required to unambiguously reveal the complex mechanistic steps involved. In this study, we employed synchrotron-based X-ray imaging methods to visualize the evolution of Li plating/stripping under operando and, more importantly, practical conditions for battery operation, providing detailed insights into morphology evolution during Li plating. The effects of critical battery operating parameters, including concentration of Li salts, current density, ionic strength, and various electrolytes and additives, on Li plating/stripping have been studied. The delicate interplay of these conditions on the resulting Li metal morphology has been characterized for the first time.
AB - Although Li metal has long been considered to be the ideal anode material for Li rechargeable batteries, our limited understanding of the complex mechanism of Li plating has hindered the widespread deployment of Li metal anodes. Therefore, operando studies are required to unambiguously reveal the complex mechanistic steps involved. In this study, we employed synchrotron-based X-ray imaging methods to visualize the evolution of Li plating/stripping under operando and, more importantly, practical conditions for battery operation, providing detailed insights into morphology evolution during Li plating. The effects of critical battery operating parameters, including concentration of Li salts, current density, ionic strength, and various electrolytes and additives, on Li plating/stripping have been studied. The delicate interplay of these conditions on the resulting Li metal morphology has been characterized for the first time.
UR - http://www.scopus.com/inward/record.url?scp=85066856390&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85066856390&partnerID=8YFLogxK
U2 - 10.1021/jacs.8b13297
DO - 10.1021/jacs.8b13297
M3 - Article
C2 - 31062595
AN - SCOPUS:85066856390
VL - 141
SP - 8441
EP - 8449
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
SN - 0002-7863
IS - 21
ER -