Development of a lithium-oxygen battery with an improved redox mediator applicable to gel polymer electrolytes

Jae Sung Jang; Min Cheol Kim; Ji Hwan Kim; Deok Hye Park; Seong Nam Lee; Yu Yeon Park; Min Ha Kim; Jeong Hyeon Byeon; Jung Inn Sohn; Kyung Won Park

doi:10.1016/j.jiec.2022.10.007

Development of a lithium-oxygen battery with an improved redox mediator applicable to gel polymer electrolytes

Jae Sung Jang, Min Cheol Kim, Ji Hwan Kim, Deok Hye Park, Seong Nam Lee, Yu Yeon Park, Min Ha Kim, Jeong Hyeon Byeon, Jung Inn Sohn, Kyung Won Park

Department of Physics

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

5 Scopus citations

Abstract

Lithium-oxygen batteries (LOBs) are next-generation electrochemical power sources with significantly high capacities and energy densities. In particular, Li₂O₂ produced during charging exhibits a low electrical conductivity and insolubility, which leads to low energy efficiency in LOBs. Thus, various catalysts are studied to solve essential problems such as the sluggish decomposition rate of Li₂O₂. In this study, a redox polymeric catalyst (RPC-FePc) is fabricated on an air electrode by combining iron(Ⅱ) phthalocyanine (FePc) as the redox mediator and polyvinylidene fluoride as the binder. The RPC-FePc applied to liquid electrolyte- and gel polymer electrolyte-based LOBs exhibit improved electrochemical properties, that is, increased cycling efficiencies and a reduced IR drop, compared to an RPC-free LOB.

Original language	English
Pages (from-to)	220-226
Number of pages	7
Journal	Journal of Industrial and Engineering Chemistry
Volume	117
DOIs	https://doi.org/10.1016/j.jiec.2022.10.007
State	Published - 25 Jan 2023

Keywords

Catalyst
Iron(Ⅱ) phthalocyanine
Lithium oxygen batteries
Polyvinylidene fluoride
Redox mediator
Redox polymeric catalyst

UN SDGs

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

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10.1016/j.jiec.2022.10.007

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title = "Development of a lithium-oxygen battery with an improved redox mediator applicable to gel polymer electrolytes",

abstract = "Lithium-oxygen batteries (LOBs) are next-generation electrochemical power sources with significantly high capacities and energy densities. In particular, Li2O2 produced during charging exhibits a low electrical conductivity and insolubility, which leads to low energy efficiency in LOBs. Thus, various catalysts are studied to solve essential problems such as the sluggish decomposition rate of Li2O2. In this study, a redox polymeric catalyst (RPC-FePc) is fabricated on an air electrode by combining iron(Ⅱ) phthalocyanine (FePc) as the redox mediator and polyvinylidene fluoride as the binder. The RPC-FePc applied to liquid electrolyte- and gel polymer electrolyte-based LOBs exhibit improved electrochemical properties, that is, increased cycling efficiencies and a reduced IR drop, compared to an RPC-free LOB.",

keywords = "Catalyst, Iron(Ⅱ) phthalocyanine, Lithium oxygen batteries, Polyvinylidene fluoride, Redox mediator, Redox polymeric catalyst",

author = "Jang, {Jae Sung} and Kim, {Min Cheol} and Kim, {Ji Hwan} and Park, {Deok Hye} and Lee, {Seong Nam} and Park, {Yu Yeon} and Kim, {Min Ha} and Byeon, {Jeong Hyeon} and Sohn, {Jung Inn} and Park, {Kyung Won}",

note = "Publisher Copyright: {\textcopyright} 2022 The Korean Society of Industrial and Engineering Chemistry",

year = "2023",

month = jan,

day = "25",

doi = "10.1016/j.jiec.2022.10.007",

language = "English",

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journal = "Journal of Industrial and Engineering Chemistry",

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TY - JOUR

T1 - Development of a lithium-oxygen battery with an improved redox mediator applicable to gel polymer electrolytes

AU - Jang, Jae Sung

AU - Kim, Min Cheol

AU - Kim, Ji Hwan

AU - Park, Deok Hye

AU - Lee, Seong Nam

AU - Park, Yu Yeon

AU - Kim, Min Ha

AU - Byeon, Jeong Hyeon

AU - Sohn, Jung Inn

AU - Park, Kyung Won

PY - 2023/1/25

Y1 - 2023/1/25

N2 - Lithium-oxygen batteries (LOBs) are next-generation electrochemical power sources with significantly high capacities and energy densities. In particular, Li2O2 produced during charging exhibits a low electrical conductivity and insolubility, which leads to low energy efficiency in LOBs. Thus, various catalysts are studied to solve essential problems such as the sluggish decomposition rate of Li2O2. In this study, a redox polymeric catalyst (RPC-FePc) is fabricated on an air electrode by combining iron(Ⅱ) phthalocyanine (FePc) as the redox mediator and polyvinylidene fluoride as the binder. The RPC-FePc applied to liquid electrolyte- and gel polymer electrolyte-based LOBs exhibit improved electrochemical properties, that is, increased cycling efficiencies and a reduced IR drop, compared to an RPC-free LOB.

AB - Lithium-oxygen batteries (LOBs) are next-generation electrochemical power sources with significantly high capacities and energy densities. In particular, Li2O2 produced during charging exhibits a low electrical conductivity and insolubility, which leads to low energy efficiency in LOBs. Thus, various catalysts are studied to solve essential problems such as the sluggish decomposition rate of Li2O2. In this study, a redox polymeric catalyst (RPC-FePc) is fabricated on an air electrode by combining iron(Ⅱ) phthalocyanine (FePc) as the redox mediator and polyvinylidene fluoride as the binder. The RPC-FePc applied to liquid electrolyte- and gel polymer electrolyte-based LOBs exhibit improved electrochemical properties, that is, increased cycling efficiencies and a reduced IR drop, compared to an RPC-free LOB.

KW - Catalyst

KW - Iron(Ⅱ) phthalocyanine

KW - Lithium oxygen batteries

KW - Polyvinylidene fluoride

KW - Redox mediator

KW - Redox polymeric catalyst

UR - http://www.scopus.com/inward/record.url?scp=85141326980&partnerID=8YFLogxK

U2 - 10.1016/j.jiec.2022.10.007

DO - 10.1016/j.jiec.2022.10.007

M3 - Article

AN - SCOPUS:85141326980

SN - 1226-086X

VL - 117

SP - 220

EP - 226

JO - Journal of Industrial and Engineering Chemistry

JF - Journal of Industrial and Engineering Chemistry

ER -

Development of a lithium-oxygen battery with an improved redox mediator applicable to gel polymer electrolytes

Abstract

Keywords

UN SDGs

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