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High Energy and High Power Lithium‐Ion Capacitors Based on Boron and Nitrogen Dual‐Doped 3D Carbon Nanofibers as Both Cathode and Anode

Xia, Qiuying, Yang, Hai, Wang, Min, Yang, Mei, Guo, Qiubo, Wan, Liming, Xia, Hui, Yu, Yan·2017·Advanced Energy Materials

Abstract

High energy density at high power density is still a challenge for the current Li‐ion capacitors (LICs) due to the mismatch of charge‐storage capacity and electrode kinetics between capacitor‐type cathode and battery‐type anode. In this work, B and N dual‐doped 3D porous carbon nanofibers are prepared through a facile method as both capacitor‐type cathode and battery‐type anode for LICs. The B and N dual doping has profound effect in tuning the porosity, functional groups, and electrical conductivity for the porous carbon nanofibers. With rational design, the developed B and N dual‐doped carbon nanofibers (BNC) exhibit greatly improved electrochemical performance as both cathode and anode for LICs, which greatly alleviates the mismatch between the two electrodes. For the first time, a 4.5 V “dual carbon” BNC//BNC LIC device is constructed and demonstrated, exhibiting outstanding energy density and power capability compared to previously reported LICs with other configurations. In specific, the present BNC//BNC LIC device can deliver a large energy density of 220 W h kg−1 and a high power density of 22.5 kW kg−1 (at 104 W h kg−1) with reasonably good cycling stability (≈81% retention after 5000 cycles).

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Metadata

Authors
Xia, Q., Yang, H., Wang, M., Yang, M., Guo, Q., Wan, L., Xia, H., & Yu, Y.
Venue
Advanced Energy Materials
Publisher
Wiley
Published
2017-08-09
Volume
7
Issue
22
ISSN
  • 1614-6832 (ISSN-L)
  • 1614-6840
OpenAlex
W2742357691
Cited by
423
References
39
FWCI
19.92
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: High Energy and High Power Lithium‐Ion Capacitors Based on Boron and Nitrogen Dual‐Doped 3D Carbon Nanofibers as Both Cathode and Anode. https://app.cochat.ai/papers/10.1002/aenm.201701336
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Xia, Q., Yang, H., Wang, M., Yang, M., Guo, Q., Wan, L., Xia, H., & Yu, Y. (2017). High Energy and High Power Lithium‐Ion Capacitors Based on Boron and Nitrogen Dual‐Doped 3D Carbon Nanofibers as Both Cathode and Anode. Advanced Energy Materials. https://doi.org/10.1002/aenm.201701336

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