Alumina thin coat on pre-charged soft carbon anode reduces electrolyte breakdown and maintains sodiation sites active in Na-ion battery – Insights from NMR measurements

Shaul Bublil; Nicole Leifer; Raju Nanda; Yuval Elias; Miryam Fayena-Greenstein; Doron Aurbach; Gil Goobes

doi:10.1016/j.jssc.2021.122121

Alumina thin coat on pre-charged soft carbon anode reduces electrolyte breakdown and maintains sodiation sites active in Na-ion battery – Insights from NMR measurements

Shaul Bublil, Nicole Leifer, Raju Nanda, Yuval Elias, Miryam Fayena-Greenstein, Doron Aurbach, Gil Goobes

Bar-Ilan University

Research output: Contribution to journal › Article › peer-review

Abstract

Atomic deposition of a thin layer of alumina on amorphous carbon materials was recently established to improve their electrochemical properties as anodes in sodium-ion batteries. It is shown that the highest performance for these materials can be achieved by pre-sodiation of the electrode before coating it. The basis for the enhanced performance is illuminated by ¹³C and ²³Na MAS NMR analysis showing that this specific procedure diminishes parasitic reactions and preserves reversible access to active sodiation sites.

Original language	English
Article number	122121
Journal	Journal of Solid State Chemistry
Volume	298
DOIs	https://doi.org/10.1016/j.jssc.2021.122121
State	Published - Jun 2021

Keywords

Alumina coating
Carbon anodes
Pre-sodiation
Sodium-ion batteries
Solid-state NMR

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.jssc.2021.122121

Cite this

Bublil, S., Leifer, N., Nanda, R., Elias, Y., Fayena-Greenstein, M., Aurbach, D., & Goobes, G. (2021). Alumina thin coat on pre-charged soft carbon anode reduces electrolyte breakdown and maintains sodiation sites active in Na-ion battery – Insights from NMR measurements. Journal of Solid State Chemistry, 298, Article 122121. https://doi.org/10.1016/j.jssc.2021.122121

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title = "Alumina thin coat on pre-charged soft carbon anode reduces electrolyte breakdown and maintains sodiation sites active in Na-ion battery – Insights from NMR measurements",

abstract = "Atomic deposition of a thin layer of alumina on amorphous carbon materials was recently established to improve their electrochemical properties as anodes in sodium-ion batteries. It is shown that the highest performance for these materials can be achieved by pre-sodiation of the electrode before coating it. The basis for the enhanced performance is illuminated by 13C and 23Na MAS NMR analysis showing that this specific procedure diminishes parasitic reactions and preserves reversible access to active sodiation sites.",

keywords = "Alumina coating, Carbon anodes, Pre-sodiation, Sodium-ion batteries, Solid-state NMR",

author = "Shaul Bublil and Nicole Leifer and Raju Nanda and Yuval Elias and Miryam Fayena-Greenstein and Doron Aurbach and Gil Goobes",

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year = "2021",

month = jun,

doi = "10.1016/j.jssc.2021.122121",

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T1 - Alumina thin coat on pre-charged soft carbon anode reduces electrolyte breakdown and maintains sodiation sites active in Na-ion battery – Insights from NMR measurements

AU - Bublil, Shaul

AU - Leifer, Nicole

AU - Nanda, Raju

AU - Elias, Yuval

AU - Fayena-Greenstein, Miryam

AU - Aurbach, Doron

AU - Goobes, Gil

PY - 2021/6

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N2 - Atomic deposition of a thin layer of alumina on amorphous carbon materials was recently established to improve their electrochemical properties as anodes in sodium-ion batteries. It is shown that the highest performance for these materials can be achieved by pre-sodiation of the electrode before coating it. The basis for the enhanced performance is illuminated by 13C and 23Na MAS NMR analysis showing that this specific procedure diminishes parasitic reactions and preserves reversible access to active sodiation sites.

AB - Atomic deposition of a thin layer of alumina on amorphous carbon materials was recently established to improve their electrochemical properties as anodes in sodium-ion batteries. It is shown that the highest performance for these materials can be achieved by pre-sodiation of the electrode before coating it. The basis for the enhanced performance is illuminated by 13C and 23Na MAS NMR analysis showing that this specific procedure diminishes parasitic reactions and preserves reversible access to active sodiation sites.

KW - Alumina coating

KW - Carbon anodes

KW - Pre-sodiation

KW - Sodium-ion batteries

KW - Solid-state NMR

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U2 - 10.1016/j.jssc.2021.122121

DO - 10.1016/j.jssc.2021.122121

M3 - مقالة

SN - 0022-4596

VL - 298

JO - Journal of Solid State Chemistry

JF - Journal of Solid State Chemistry

M1 - 122121

ER -

Alumina thin coat on pre-charged soft carbon anode reduces electrolyte breakdown and maintains sodiation sites active in Na-ion battery – Insights from NMR measurements

Abstract

Keywords

All Science Journal Classification (ASJC) codes

UN SDGs

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