Citation: Jin Chen, Jianzhong Zhou, Lihong Su, Xuebu Hu, Zhongli Hu, Sha Li, Yunlan Xu, Li Zhang. Non-conjugated adipamide organic anode materials for high-performance lithium-ion capacitors[J]. Chinese Chemical Letters, ;2025, 36(9): 110305. doi: 10.1016/j.cclet.2024.110305 shu

Non-conjugated adipamide organic anode materials for high-performance lithium-ion capacitors

Jin Chen ^a ,
Jianzhong Zhou ^a ,
Lihong Su ^a ,
Xuebu Hu ^a ,
Zhongli Hu ^{a, *,} ,
Sha Li ^b ,
Yunlan Xu ^a ,
Li Zhang ^{c, *,}

a.
College of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400054, China
b.
Institute of smart city and intelligent transportation, Southwest Jiaotong University, Chengdu 611756, China
c.
State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China

zlhu@cqut.edu.cn

zhangli81@xmu.edu.cn

Received Date: 19 June 2024
Revised Date: 12 July 2024
Accepted Date: 30 July 2024
Available Online: 31 July 2024

Figures(4)

Lithium-ion capacitors (LICs) hold promise as next-generation energy storage devices due to the synergy of the advantageous features of lithium-ion batteries (LIBs) and supercapacitors (SCs). Recently, the use of nanostructured conjugated carboxylate organic anode materials in LICs has attracted tremendous attention due to their high capacity, excellent capacitive behavior, design flexibility, and environmental friendliness. Nevertheless, no studies have reported the use of non-conjugated organic compounds in LICs. In this study, we report for the first time that non-conjugated adipamide (ADIPAM) nanocrystals fabricated using a dissolution-recrystallization self-assembly technique serve as an excellent anode material for LICs. The unique ADIPAM nanocrystals–PVDF–Super P conductive integrated network architecture accelerates Li⁺ ion and electron diffusion and enhances lithium storage capability. Consequently, ADIPAM electrodes exhibit a high capacity of 705.8 mAh/g, exceptional cycling stability (308 mAh/g after 2100 cycles at 5 A/g), and remarkable rate capability. Furthermore, a LIC full cell comprising the ADIPAM anode with a porous activated carbon cathode demonstrates a wide working window (4.5 V), high energy density (238.3 Wh/kg), and superb power density (22,500 W/kg). We believe this work may introduce a new approach to the design of non-conjugated organic materials for LICs.
- Lithium-ion capacitors,
- Non-conjugated organic compounds,
- Adipamide molecules,
- Nanocrystals network architecture,
- High energy/power densities
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