Conductive metal–organic framework with redox metal center as cathode for high rate performance lithium ion battery

Shaonan Gu; Zhaowen Bai; Soumyadip Majumder; Baoling Huang; Guohua Chen

doi:10.1016/j.jpowsour.2019.04.087

Conductive metal–organic framework with redox metal center as cathode for high rate performance lithium ion battery

Shaonan Gu, Zhaowen Bai, Soumyadip Majumder, Baoling Huang, Guohua Chen

Research output: Journal article publication › Journal article › Academic research › peer-review

33 Citations (Scopus)

Abstract

Exploration of new materials for lithium ion battery is a continuous challenge to meet the increasing demand for energy storage. Herein, a novel conductive metal-organic framework Cu₃(2,3,6,7,10,11-hexahydroxytriphenylene)₂ (Cu₃(HHTP)₂)is obtained and tested as cathode active material in lithium ion battery. With a working voltage range of 1.7–3.5 V, Cu₃(HHTP)₂ cathode shows a reversible discharge and charge capacity of ∼95 mA h g⁻¹, which is almost equal to its theoretical value. Impressively, this novel cathode also shows highly stable redox cycling performance at the current rate as high as 20C because of its intrinsic electrical conductivity and two dimensional porous structure. Electrochemical properties and chemical analysis of Cu₃(HHTP)₂ reveal that the valence change of copper cations in the framework is responsible for the lithium ions insertion/desertion during redox cycles. The first principle calculation also supports this mechanism.

Original language	English
Pages (from-to)	22-29
Number of pages	8
Journal	Journal of Power Sources
Volume	429
DOIs	https://doi.org/10.1016/j.jpowsour.2019.04.087
Publication status	Published - 31 Jul 2019

Keywords

Cathode
Conductive MOF
High rate performance
Redox center

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

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10.1016/j.jpowsour.2019.04.087

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title = "Conductive metal–organic framework with redox metal center as cathode for high rate performance lithium ion battery",

abstract = "Exploration of new materials for lithium ion battery is a continuous challenge to meet the increasing demand for energy storage. Herein, a novel conductive metal-organic framework Cu3(2,3,6,7,10,11-hexahydroxytriphenylene)2 (Cu3(HHTP)2)is obtained and tested as cathode active material in lithium ion battery. With a working voltage range of 1.7–3.5 V, Cu3(HHTP)2 cathode shows a reversible discharge and charge capacity of ∼95 mA h g−1, which is almost equal to its theoretical value. Impressively, this novel cathode also shows highly stable redox cycling performance at the current rate as high as 20C because of its intrinsic electrical conductivity and two dimensional porous structure. Electrochemical properties and chemical analysis of Cu3(HHTP)2 reveal that the valence change of copper cations in the framework is responsible for the lithium ions insertion/desertion during redox cycles. The first principle calculation also supports this mechanism.",

keywords = "Cathode, Conductive MOF, High rate performance, Redox center",

author = "Shaonan Gu and Zhaowen Bai and Soumyadip Majumder and Baoling Huang and Guohua Chen",

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AU - Gu, Shaonan

AU - Bai, Zhaowen

AU - Majumder, Soumyadip

AU - Huang, Baoling

AU - Chen, Guohua

PY - 2019/7/31

Y1 - 2019/7/31

N2 - Exploration of new materials for lithium ion battery is a continuous challenge to meet the increasing demand for energy storage. Herein, a novel conductive metal-organic framework Cu3(2,3,6,7,10,11-hexahydroxytriphenylene)2 (Cu3(HHTP)2)is obtained and tested as cathode active material in lithium ion battery. With a working voltage range of 1.7–3.5 V, Cu3(HHTP)2 cathode shows a reversible discharge and charge capacity of ∼95 mA h g−1, which is almost equal to its theoretical value. Impressively, this novel cathode also shows highly stable redox cycling performance at the current rate as high as 20C because of its intrinsic electrical conductivity and two dimensional porous structure. Electrochemical properties and chemical analysis of Cu3(HHTP)2 reveal that the valence change of copper cations in the framework is responsible for the lithium ions insertion/desertion during redox cycles. The first principle calculation also supports this mechanism.

AB - Exploration of new materials for lithium ion battery is a continuous challenge to meet the increasing demand for energy storage. Herein, a novel conductive metal-organic framework Cu3(2,3,6,7,10,11-hexahydroxytriphenylene)2 (Cu3(HHTP)2)is obtained and tested as cathode active material in lithium ion battery. With a working voltage range of 1.7–3.5 V, Cu3(HHTP)2 cathode shows a reversible discharge and charge capacity of ∼95 mA h g−1, which is almost equal to its theoretical value. Impressively, this novel cathode also shows highly stable redox cycling performance at the current rate as high as 20C because of its intrinsic electrical conductivity and two dimensional porous structure. Electrochemical properties and chemical analysis of Cu3(HHTP)2 reveal that the valence change of copper cations in the framework is responsible for the lithium ions insertion/desertion during redox cycles. The first principle calculation also supports this mechanism.

KW - Cathode

KW - Conductive MOF

KW - High rate performance

KW - Redox center

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DO - 10.1016/j.jpowsour.2019.04.087

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JO - Journal of Power Sources

JF - Journal of Power Sources

SN - 0378-7753

ER -

Conductive metal–organic framework with redox metal center as cathode for high rate performance lithium ion battery

Abstract

Keywords

ASJC Scopus subject areas

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