Manipulation of conjugation to stabilize N redox-active centers for the design of high-voltage organic battery cathode

Gaole Dai; Xuelan Wang; Yumin Qian; Zhihui Niu; Xi Zhu; Jing Ye; Yu Zhao; Xiaohong Zhang

doi:10.1016/j.ensm.2018.06.005

Manipulation of conjugation to stabilize N redox-active centers for the design of high-voltage organic battery cathode

Gaole Dai, Xuelan Wang, Yumin Qian, Zhihui Niu, Xi Zhu, Jing Ye, Yu Zhao^*, Xiaohong Zhang

^*Corresponding author for this work

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

98 Citations (Scopus)

Abstract

Organic redox compounds are promising candidates for lithium ion batteries owing to the elemental abundance and structural diversity. However, the low redox potential and chemical bond cleavage/recombination during lithiation/delithiation have significantly limited their practical application. We demonstrate here the manipulation of conjugation to stabilize N redox-active centers in a p-type, two-electron-transfer oligomer of N,N’-diphenyl-5,10-dihydrophenazine as a high-voltage organic battery cathode material, which exhibits high redox potentials of 4.1 and 3.3 V (vs. Li⁺/Li), good stability, and a galvanometric energy density of ca. 530 Wh kg^–1. The redox active electron localized on the dihydrophenazine unit in this oligomer are believed to contribute to the good electrochemical performances.

Original language	English
Pages (from-to)	236-242
Number of pages	7
Journal	Energy Storage Materials
Volume	16
DOIs	https://doi.org/10.1016/j.ensm.2018.06.005
Publication status	Published - Jan 2019
Externally published	Yes

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title = "Manipulation of conjugation to stabilize N redox-active centers for the design of high-voltage organic battery cathode",

abstract = "Organic redox compounds are promising candidates for lithium ion batteries owing to the elemental abundance and structural diversity. However, the low redox potential and chemical bond cleavage/recombination during lithiation/delithiation have significantly limited their practical application. We demonstrate here the manipulation of conjugation to stabilize N redox-active centers in a p-type, two-electron-transfer oligomer of N,N{\textquoteright}-diphenyl-5,10-dihydrophenazine as a high-voltage organic battery cathode material, which exhibits high redox potentials of 4.1 and 3.3 V (vs. Li+/Li), good stability, and a galvanometric energy density of ca. 530 Wh kg–1. The redox active electron localized on the dihydrophenazine unit in this oligomer are believed to contribute to the good electrochemical performances.",

author = "Gaole Dai and Xuelan Wang and Yumin Qian and Zhihui Niu and Xi Zhu and Jing Ye and Yu Zhao and Xiaohong Zhang",

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language = "English",

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T1 - Manipulation of conjugation to stabilize N redox-active centers for the design of high-voltage organic battery cathode

AU - Dai, Gaole

AU - Wang, Xuelan

AU - Qian, Yumin

AU - Niu, Zhihui

AU - Zhu, Xi

AU - Ye, Jing

AU - Zhao, Yu

AU - Zhang, Xiaohong

PY - 2019/1

Y1 - 2019/1

N2 - Organic redox compounds are promising candidates for lithium ion batteries owing to the elemental abundance and structural diversity. However, the low redox potential and chemical bond cleavage/recombination during lithiation/delithiation have significantly limited their practical application. We demonstrate here the manipulation of conjugation to stabilize N redox-active centers in a p-type, two-electron-transfer oligomer of N,N’-diphenyl-5,10-dihydrophenazine as a high-voltage organic battery cathode material, which exhibits high redox potentials of 4.1 and 3.3 V (vs. Li+/Li), good stability, and a galvanometric energy density of ca. 530 Wh kg–1. The redox active electron localized on the dihydrophenazine unit in this oligomer are believed to contribute to the good electrochemical performances.

AB - Organic redox compounds are promising candidates for lithium ion batteries owing to the elemental abundance and structural diversity. However, the low redox potential and chemical bond cleavage/recombination during lithiation/delithiation have significantly limited their practical application. We demonstrate here the manipulation of conjugation to stabilize N redox-active centers in a p-type, two-electron-transfer oligomer of N,N’-diphenyl-5,10-dihydrophenazine as a high-voltage organic battery cathode material, which exhibits high redox potentials of 4.1 and 3.3 V (vs. Li+/Li), good stability, and a galvanometric energy density of ca. 530 Wh kg–1. The redox active electron localized on the dihydrophenazine unit in this oligomer are believed to contribute to the good electrochemical performances.

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U2 - 10.1016/j.ensm.2018.06.005

DO - 10.1016/j.ensm.2018.06.005

M3 - Article

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SN - 2405-8297

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SP - 236

EP - 242

JO - Energy Storage Materials

JF - Energy Storage Materials

ER -

Manipulation of conjugation to stabilize N redox-active centers for the design of high-voltage organic battery cathode

Abstract

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