Understanding of electrolyte stability and its impact to lifespan of li-O2 battery

Jianglan Shui; John Okasinski; Dan Zhao; Jon Almer; Di Jia Liu

doi:10.1149/05025.0037ecst

Understanding of electrolyte stability and its impact to lifespan of li-O₂ battery

Jianglan Shui
, John Okasinski
, Dan Zhao
, Jon Almer
, Di Jia Liu^*

^*Corresponding author for this work

Argonne National Laboratory

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

7 Scopus citations

Abstract

The impact to the Li-O₂ battery performance from the insoluble lithium salts formed from the electrolyte decomposition during discharge-charge cycle was investigated by a microfocused synchrotron X-ray diffraction (-XRD) technique, together with the conventional imaging and spectroscopic methods. Lithium alkyl carbonate deposit was found throughout the battery. Surprisingly, the concentration of Li2CO₃ in the separator is significantly higher than that in both electrodes. Imaging method such as Scanning electron microscopy revealed that the precipitates grew on the separator fiber surface, ultimately obstructing the pores serving as the ion-transport channel. A model based on finite-element analysis was developed to qualitatively illustrate the possible chemical/physical processes leading to high accumulation of insoluble precipitates in the separator region.

Original language	English
Title of host publication	Metal-Air Batteries
Publisher	Electrochemical Society Inc.
Pages	37-45
Number of pages	9
Edition	25
ISBN (Print)	9781607684138
DOIs	https://doi.org/10.1149/05025.0037ecst
State	Published - 2013
Externally published	Yes
Event	Symposium on Metal-Air Batteries - 222nd ECS Meeting/PRiME 2012 - Honolulu, HI, United States Duration: 7 Oct 2012 → 12 Oct 2012

Publication series

Name	ECS Transactions
Number	25
Volume	50
ISSN (Print)	1938-5862
ISSN (Electronic)	1938-6737

Conference

Conference	Symposium on Metal-Air Batteries - 222nd ECS Meeting/PRiME 2012
Country/Territory	United States
City	Honolulu, HI
Period	7/10/12 → 12/10/12

Access to Document

10.1149/05025.0037ecst

Cite this

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title = "Understanding of electrolyte stability and its impact to lifespan of li-O2 battery",

abstract = "The impact to the Li-O2 battery performance from the insoluble lithium salts formed from the electrolyte decomposition during discharge-charge cycle was investigated by a microfocused synchrotron X-ray diffraction (-XRD) technique, together with the conventional imaging and spectroscopic methods. Lithium alkyl carbonate deposit was found throughout the battery. Surprisingly, the concentration of Li2CO3 in the separator is significantly higher than that in both electrodes. Imaging method such as Scanning electron microscopy revealed that the precipitates grew on the separator fiber surface, ultimately obstructing the pores serving as the ion-transport channel. A model based on finite-element analysis was developed to qualitatively illustrate the possible chemical/physical processes leading to high accumulation of insoluble precipitates in the separator region.",

author = "Jianglan Shui and John Okasinski and Dan Zhao and Jon Almer and Liu, \{Di Jia\}",

year = "2013",

doi = "10.1149/05025.0037ecst",

language = "英语",

isbn = "9781607684138",

series = "ECS Transactions",

publisher = "Electrochemical Society Inc.",

number = "25",

pages = "37--45",

booktitle = "Metal-Air Batteries",

address = "美国",

edition = "25",

note = "Symposium on Metal-Air Batteries - 222nd ECS Meeting/PRiME 2012 ; Conference date: 07-10-2012 Through 12-10-2012",

}

Shui, J, Okasinski, J, Zhao, D, Almer, J & Liu, DJ 2013, Understanding of electrolyte stability and its impact to lifespan of li-O₂ battery. in Metal-Air Batteries. 25 edn, ECS Transactions, no. 25, vol. 50, Electrochemical Society Inc., pp. 37-45, Symposium on Metal-Air Batteries - 222nd ECS Meeting/PRiME 2012, Honolulu, HI, United States, 7/10/12. https://doi.org/10.1149/05025.0037ecst

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AU - Shui, Jianglan

AU - Okasinski, John

AU - Zhao, Dan

AU - Almer, Jon

AU - Liu, Di Jia

PY - 2013

Y1 - 2013

N2 - The impact to the Li-O2 battery performance from the insoluble lithium salts formed from the electrolyte decomposition during discharge-charge cycle was investigated by a microfocused synchrotron X-ray diffraction (-XRD) technique, together with the conventional imaging and spectroscopic methods. Lithium alkyl carbonate deposit was found throughout the battery. Surprisingly, the concentration of Li2CO3 in the separator is significantly higher than that in both electrodes. Imaging method such as Scanning electron microscopy revealed that the precipitates grew on the separator fiber surface, ultimately obstructing the pores serving as the ion-transport channel. A model based on finite-element analysis was developed to qualitatively illustrate the possible chemical/physical processes leading to high accumulation of insoluble precipitates in the separator region.

AB - The impact to the Li-O2 battery performance from the insoluble lithium salts formed from the electrolyte decomposition during discharge-charge cycle was investigated by a microfocused synchrotron X-ray diffraction (-XRD) technique, together with the conventional imaging and spectroscopic methods. Lithium alkyl carbonate deposit was found throughout the battery. Surprisingly, the concentration of Li2CO3 in the separator is significantly higher than that in both electrodes. Imaging method such as Scanning electron microscopy revealed that the precipitates grew on the separator fiber surface, ultimately obstructing the pores serving as the ion-transport channel. A model based on finite-element analysis was developed to qualitatively illustrate the possible chemical/physical processes leading to high accumulation of insoluble precipitates in the separator region.

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