Atomistic structural engineering of conjugated organic polymer cathodes for high-performance Li-organic batteries

Li, Yuke; Ding, Yijiao; Wu, Juncheng; Wang, Yu; Chen, Lei; Jin, Yanxian; Zhang, Li; Ren, Shi-Bin; Han, De-Man

doi:10.1039/d3ta05152h

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2024

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Cited by 2 publications

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References 56 publications

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“…COPs have been evaluated for photoredox catalysis, 8–10 supercapacitors, 11,12 and batteries. 13,14 Furthermore, the microporosity and extended π-conjugation in COPs are conducive to storing electrical energy in electrodes. Redox-active groups can easily be introduced in the tunable skeleton of COPs, resulting in interesting and beneficial electrochemical properties.…”

Section: Introductionmentioning

confidence: 99%

Ultrathin alkynylation phthalocyanine-conjugated organic polymer nanosheets for constructing a sensitive electrochemiluminescence sensor

Chen,

Wang,

et al. 2024

J. Mater. Chem. A

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Section: Introductionmentioning

confidence: 99%

Ultrathin alkynylation phthalocyanine-conjugated organic polymer nanosheets for constructing a sensitive electrochemiluminescence sensor

Chen,

Wang,

et al. 2024

J. Mater. Chem. A

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Electropolymerization of Donor–Acceptor Conjugated Polymer for Efficient Dual‐Ion Storage

Chen,

Zhang,

Zhang

et al. 2024

Advanced Science

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Rationally designed organic redox‐active materials have attracted numerous interests due to their excellent electrochemical performance and reasonable sustainability. However, they often suffer from poor cycling stability, intrinsic low operating potential, and poor rate performance. Herein, a novel Donor–Acceptor (D–A) bipolar polymer with n‐type pyrene‐4,5,9,10‐tetraone unit storing Li cations and p‐type carbazole unit which attracts anions and provides polymerization sites is employed as a cathode for lithium‐ion batteries through in situ electropolymerization. The multiple redox reactions and boosted kinetics by the D–A structure lead to excellent electrochemical performance of a high discharge capacity of 202 mA h g−1 at 200 mA g−1, impressive working potential (2.87 and 4.15 V), an outstanding rate capability of 119 mA h g−1 at 10 A g−1 and a noteworthy energy density up to 554 Wh kg−1. This strategy has significant implications for the molecule design of bipolar organic cathode for high cycling stability and high energy density.

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Atomistic structural engineering of conjugated organic polymer cathodes for high-performance Li-organic batteries

Abstract: Conjugated organic polymers have been deemed as one type of the most promising electrode materials for lithium-ion batteries (LIBs) due to their structural diversity and functional designability. However, the poor...

Cited by 2 publications

References 56 publications

Ultrathin alkynylation phthalocyanine-conjugated organic polymer nanosheets for constructing a sensitive electrochemiluminescence sensor

Ultrathin alkynylation phthalocyanine-conjugated organic polymer nanosheets for constructing a sensitive electrochemiluminescence sensor

Electropolymerization of Donor–Acceptor Conjugated Polymer for Efficient Dual‐Ion Storage

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