Coordinated mapping of Li+ flux and electron transfer reactivity during solid-electrolyte interphase formation at a graphene electrode

The Analyst ◽  
2020 ◽  
Vol 145 (7) ◽  
pp. 2631-2638
Author(s):  
Zachary T. Gossage ◽  
Jingshu Hui ◽  
Dipobrato Sarbapalli ◽  
Joaquín Rodríguez-López
Keyword(s):  
Electron Transfer ◽  
Solid Electrolyte ◽  
Solid Electrolyte Interphase ◽  
Graphene Electrode

Mapping correlated ion and electron transfer reactivity as a passivating battery interphase evolves.

scholarly journals Interfacial Electron Transfer and Ion Solvation in the Solid Electrolyte Interphase

2020 ◽  
Author(s):  
Jeongmin Kim ◽  
Brett Savoie ◽  
Thomas Miller
Keyword(s):  
Electron Transfer ◽  
Solid Electrolyte ◽  
Polyethylene Oxide ◽  
Solid Polymer Electrolyte ◽  
Solid Electrolyte Interphase ◽  
Platinum Metal ◽  
Ion Solvation ◽  
Solid Polymer ◽  
Lithium Ions ◽  
Metal Anode

<div><div><div><p>As a chemically and structurally well-defined model for redox processes in the solid electrolyte interphase of battery electrodes, we investigate electron transfer to lithium ions at the interface between a platinum metal anode and a solid polymer electrolyte. Studied electrolytes include LiTFSI (lithium bis(trifluoromethane)sulfonimide) salts in polyethylene oxide and poly(diethylene oxide-alt-oxymethylene), as well as in the as- sociated liquid electrolytes 1,2-dimethoxyethane and tetraglyme.</p></div></div></div>

Electron transfer through solid-electrolyte-interphase layers formed on Si anodes of Li-ion batteries

2014 ◽  
Vol 140 ◽  
pp. 250-257 ◽  
Author(s):  
L. Benitez ◽  
D. Cristancho ◽  
J.M. Seminario ◽  
J.M. Martinez de la Hoz ◽  
P.B. Balbuena
Keyword(s):  
Electron Transfer ◽  
Solid Electrolyte ◽  
Solid Electrolyte Interphase ◽  
Li Ion Batteries ◽  
Li Ion ◽  
Si Anodes

Structure and chemistry of the solid electrolyte interphase (SEI) on a high capacity conversion-based anode: NiO

2021 ◽  
Vol 9 (1) ◽  
pp. 523-537
Author(s):  
Benjamin Ng ◽  
Ehsan Faegh ◽  
Saheed Lateef ◽  
Stavros G. Karakalos ◽  
William E. Mustain
Keyword(s):  
Electron Transfer ◽  
Solid Electrolyte ◽  
Solid Electrolyte Interphase ◽  
High Capacity ◽  
High Sensitivity ◽  
Transfer Theory ◽  
Electron Transfer Theory ◽  
Shed Light

Electroanalytical techniques are specialized tools with high-sensitivity that when combined with electron transfer theory can shed light on the mechanisms of highly complex, heterogeneous, multi-step reactions – including SEI formation on LiB anodes.

scholarly journals Interfacial Electron Transfer and Ion Solvation in the Solid Electrolyte Interphase

2020 ◽  
Author(s):  
Jeongmin Kim ◽  
Brett Savoie ◽  
Thomas Miller
Keyword(s):  
Electron Transfer ◽  
Solid Electrolyte ◽  
Polyethylene Oxide ◽  
Solid Polymer Electrolyte ◽  
Solid Electrolyte Interphase ◽  
Platinum Metal ◽  
Ion Solvation ◽  
Solid Polymer ◽  
Lithium Ions ◽  
Metal Anode

<div><div><div><p>As a chemically and structurally well-defined model for redox processes in the solid electrolyte interphase of battery electrodes, we investigate electron transfer to lithium ions at the interface between a platinum metal anode and a solid polymer electrolyte. Studied electrolytes include LiTFSI (lithium bis(trifluoromethane)sulfonimide) salts in polyethylene oxide and poly(diethylene oxide-alt-oxymethylene), as well as in the as- sociated liquid electrolytes 1,2-dimethoxyethane and tetraglyme.</p></div></div></div>

Unveiling the Formation of Solid Electrolyte Interphase and its Temperature Dependence in “Water-in-Salt” Supercapacitors

2021 ◽  
Vol 13 (3) ◽  
pp. 3979-3990
Author(s):  
Ting Quan ◽  
Eneli Härk ◽  
Yaolin Xu ◽  
Ibbi Ahmet ◽  
Christian Höhn ◽  
...  
Keyword(s):  
Solid Electrolyte ◽  
Temperature Dependence ◽  
Solid Electrolyte Interphase

Reactivity and Evolution of Ionic Phases in the Lithium Solid–Electrolyte Interphase

2021 ◽  
pp. 877-885
Author(s):  
Rui Guo ◽  
Dongniu Wang ◽  
Lucia Zuin ◽  
Betar M. Gallant
Keyword(s):  
Solid Electrolyte ◽  
Solid Electrolyte Interphase

scholarly journals Probing the Na metal solid electrolyte interphase via cryo-transmission electron microscopy

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Bing Han ◽  
Yucheng Zou ◽  
Zhen Zhang ◽  
Xuming Yang ◽  
Xiaobo Shi ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Solid Electrolyte ◽  
Solid Electrolyte Interphase ◽  
Metal Electrode ◽  
Liquid Electrolyte ◽  
Battery Materials ◽  
Cryogenic Transmission Electron Microscopy ◽  
Transmission Electron ◽  
Fluoroethylene Carbonate

AbstractCryogenic transmission electron microscopy (cryo-TEM) is a valuable tool recently proposed to investigate battery electrodes. Despite being employed for Li-based battery materials, cryo-TEM measurements for Na-based electrochemical energy storage systems are not commonly reported. In particular, elucidating the chemical and morphological behavior of the Na-metal electrode in contact with a non-aqueous liquid electrolyte solution could provide useful insights that may lead to a better understanding of metal cells during operation. Here, using cryo-TEM, we investigate the effect of fluoroethylene carbonate (FEC) additive on the solid electrolyte interphase (SEI) structure of a Na-metal electrode. Without FEC, the NaPF6-containing carbonate-based electrolyte reacts with the metal electrode to produce an unstable SEI, rich in Na2CO3 and Na3PO4, which constantly consumes the sodium reservoir of the cell during cycling. When FEC is used, the Na-metal electrode forms a multilayer SEI structure comprising an outer NaF-rich amorphous phase and an inner Na3PO4 phase. This layered structure stabilizes the SEI and prevents further reactions between the electrolyte and the Na metal.

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