High-rate, high-capacity electrochemical energy storage in hydrogen-bonded fused aromatics

Tianyang Chen; Harish Banda; Luming Yang; Jian Li; Yugang Zhang; Riccardo Parenti; Mircea Dincă

doi:10.1016/j.joule.2023.03.011

High-rate, high-capacity electrochemical energy storage in hydrogen-bonded fused aromatics

Tianyang Chen, Harish Banda, Luming Yang, Jian Li, Yugang Zhang, Riccardo Parenti, Mircea Dincă

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

44 Scopus citations

Abstract

Designing materials for electrochemical energy storage with short charging times and high charge capacities is a longstanding challenge. The fundamental difficulty lies in incorporating a high density of redox couples into a stable material that can efficiently conduct both ions and electrons. We report all-organic, fused aromatic materials that store up to 310 mAh g⁻¹ and charge in as little as 33 s. This performance stems from abundant quinone/imine functionalities that decorate an extended aromatic backbone, act as redox-active sites, engage in hydrogen bonding, and enable a delocalized high-rate energy storage with stability upon cycling. The extended conjugation and hydrogen-bonding-assisted bulk charge storage contrast with the surface-confined or hydration-dependent behavior of traditional inorganic electrodes.

Original language	English (US)
Pages (from-to)	986-1002
Number of pages	17
Journal	Joule
Volume	7
Issue number	5
DOIs	https://doi.org/10.1016/j.joule.2023.03.011
State	Published - May 17 2023
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Energy

Keywords

energy storage
intercalation
organic electrodes
pseudocapacitance
supercapacitors

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10.1016/j.joule.2023.03.011

Cite this

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abstract = "Designing materials for electrochemical energy storage with short charging times and high charge capacities is a longstanding challenge. The fundamental difficulty lies in incorporating a high density of redox couples into a stable material that can efficiently conduct both ions and electrons. We report all-organic, fused aromatic materials that store up to 310 mAh g−1 and charge in as little as 33 s. This performance stems from abundant quinone/imine functionalities that decorate an extended aromatic backbone, act as redox-active sites, engage in hydrogen bonding, and enable a delocalized high-rate energy storage with stability upon cycling. The extended conjugation and hydrogen-bonding-assisted bulk charge storage contrast with the surface-confined or hydration-dependent behavior of traditional inorganic electrodes.",

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AU - Chen, Tianyang

AU - Banda, Harish

AU - Yang, Luming

AU - Li, Jian

AU - Zhang, Yugang

AU - Parenti, Riccardo

AU - Dincă, Mircea

PY - 2023/5/17

Y1 - 2023/5/17

N2 - Designing materials for electrochemical energy storage with short charging times and high charge capacities is a longstanding challenge. The fundamental difficulty lies in incorporating a high density of redox couples into a stable material that can efficiently conduct both ions and electrons. We report all-organic, fused aromatic materials that store up to 310 mAh g−1 and charge in as little as 33 s. This performance stems from abundant quinone/imine functionalities that decorate an extended aromatic backbone, act as redox-active sites, engage in hydrogen bonding, and enable a delocalized high-rate energy storage with stability upon cycling. The extended conjugation and hydrogen-bonding-assisted bulk charge storage contrast with the surface-confined or hydration-dependent behavior of traditional inorganic electrodes.

AB - Designing materials for electrochemical energy storage with short charging times and high charge capacities is a longstanding challenge. The fundamental difficulty lies in incorporating a high density of redox couples into a stable material that can efficiently conduct both ions and electrons. We report all-organic, fused aromatic materials that store up to 310 mAh g−1 and charge in as little as 33 s. This performance stems from abundant quinone/imine functionalities that decorate an extended aromatic backbone, act as redox-active sites, engage in hydrogen bonding, and enable a delocalized high-rate energy storage with stability upon cycling. The extended conjugation and hydrogen-bonding-assisted bulk charge storage contrast with the surface-confined or hydration-dependent behavior of traditional inorganic electrodes.

KW - energy storage

KW - intercalation

KW - organic electrodes

KW - pseudocapacitance

KW - supercapacitors

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High-rate, high-capacity electrochemical energy storage in hydrogen-bonded fused aromatics

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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