Large-Scale LiO2 Pouch Type Cells for Practical Evaluation and Applications

Hyeon Ji Shin; Won Jin Kwak; Doron Aurbach; Yang Kook Sun

doi:10.1002/adfm.201605500

Large-Scale LiO₂ Pouch Type Cells for Practical Evaluation and Applications

Hyeon Ji Shin, Won Jin Kwak, Doron Aurbach, Yang Kook Sun

Department of Chemistry

Bar-Ilan University

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

Abstract

Due to their high theoretical specific capacity and energy density, LiO₂ batteries are considered as candidates for next-generation battery systems in place of conventional Li-ion batteries for advanced applications such as electric vehicles. However, low energy efficiency, poor cycle life, and Li-metal safety issues make the use of LiO₂ batteries yet impractical. In addition, actual cell capacities are very low, and since only small-scale electrodes are currently tested, it is hard to predict the properties of large-size electrodes and cells, thus evaluating and judging real practical challenges related to this battery technology. In this work, the behavior of pouch-type LiO₂ cells using 3 × 5 cm² sized electrodes is investigated and it is confirmed that Li-metal is a key issue for the upscale of LiO₂ cells. This study can help to determine which parameters are the most important for developing practical LiO₂ batteries.

Original language	English
Article number	1605500
Journal	Advanced Functional Materials
Volume	27
Issue number	11
DOIs	https://doi.org/10.1002/adfm.201605500
State	Published - 17 Mar 2017

Keywords

lithium–oxygen batteries
nonaqueous oxygen electrochemistry
pouch-type cells
rechargeable Li batteries

All Science Journal Classification (ASJC) codes

General Chemistry
Condensed Matter Physics
General Materials Science

UN SDGs

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

Access to Document

10.1002/adfm.201605500

Cite this

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title = "Large-Scale LiO2 Pouch Type Cells for Practical Evaluation and Applications",

abstract = "Due to their high theoretical specific capacity and energy density, LiO2 batteries are considered as candidates for next-generation battery systems in place of conventional Li-ion batteries for advanced applications such as electric vehicles. However, low energy efficiency, poor cycle life, and Li-metal safety issues make the use of LiO2 batteries yet impractical. In addition, actual cell capacities are very low, and since only small-scale electrodes are currently tested, it is hard to predict the properties of large-size electrodes and cells, thus evaluating and judging real practical challenges related to this battery technology. In this work, the behavior of pouch-type LiO2 cells using 3 × 5 cm2 sized electrodes is investigated and it is confirmed that Li-metal is a key issue for the upscale of LiO2 cells. This study can help to determine which parameters are the most important for developing practical LiO2 batteries.",

keywords = "lithium–oxygen batteries, nonaqueous oxygen electrochemistry, pouch-type cells, rechargeable Li batteries",

author = "Shin, {Hyeon Ji} and Kwak, {Won Jin} and Doron Aurbach and Sun, {Yang Kook}",

note = "Publisher Copyright: {\textcopyright} 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim",

year = "2017",

month = mar,

day = "17",

doi = "10.1002/adfm.201605500",

language = "الإنجليزيّة",

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T1 - Large-Scale LiO2 Pouch Type Cells for Practical Evaluation and Applications

AU - Shin, Hyeon Ji

AU - Kwak, Won Jin

AU - Aurbach, Doron

AU - Sun, Yang Kook

PY - 2017/3/17

Y1 - 2017/3/17

N2 - Due to their high theoretical specific capacity and energy density, LiO2 batteries are considered as candidates for next-generation battery systems in place of conventional Li-ion batteries for advanced applications such as electric vehicles. However, low energy efficiency, poor cycle life, and Li-metal safety issues make the use of LiO2 batteries yet impractical. In addition, actual cell capacities are very low, and since only small-scale electrodes are currently tested, it is hard to predict the properties of large-size electrodes and cells, thus evaluating and judging real practical challenges related to this battery technology. In this work, the behavior of pouch-type LiO2 cells using 3 × 5 cm2 sized electrodes is investigated and it is confirmed that Li-metal is a key issue for the upscale of LiO2 cells. This study can help to determine which parameters are the most important for developing practical LiO2 batteries.

AB - Due to their high theoretical specific capacity and energy density, LiO2 batteries are considered as candidates for next-generation battery systems in place of conventional Li-ion batteries for advanced applications such as electric vehicles. However, low energy efficiency, poor cycle life, and Li-metal safety issues make the use of LiO2 batteries yet impractical. In addition, actual cell capacities are very low, and since only small-scale electrodes are currently tested, it is hard to predict the properties of large-size electrodes and cells, thus evaluating and judging real practical challenges related to this battery technology. In this work, the behavior of pouch-type LiO2 cells using 3 × 5 cm2 sized electrodes is investigated and it is confirmed that Li-metal is a key issue for the upscale of LiO2 cells. This study can help to determine which parameters are the most important for developing practical LiO2 batteries.

KW - lithium–oxygen batteries

KW - nonaqueous oxygen electrochemistry

KW - pouch-type cells

KW - rechargeable Li batteries

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DO - 10.1002/adfm.201605500

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