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Construction of a flexible, integrated rechargeable Li battery based on a coaxial anode with a carbon fiber core encapsulated in FeNiMnO4 and a nitrogen-doped carbon sheath

ZOU Yi-ming SUN Chang-chun LI Shao-wen BAI Miao DU Yu-xuan ZHANG Min XU Fei MA Yue

邹一鸣, 孙长春, 李少雯, 白苗, 杜宇轩, 张敏, 徐飞, 马越. 基于同轴碳/四元氧化物复合负极构建柔性、集成的可充电锂电池. 新型炭材料(中英文), 2022, 37(5): 944-955. doi: 10.1016/S1872-5805(22)60617-6
引用本文: 邹一鸣, 孙长春, 李少雯, 白苗, 杜宇轩, 张敏, 徐飞, 马越. 基于同轴碳/四元氧化物复合负极构建柔性、集成的可充电锂电池. 新型炭材料(中英文), 2022, 37(5): 944-955. doi: 10.1016/S1872-5805(22)60617-6
ZOU Yi-ming, SUN Chang-chun, LI Shao-wen, BAI Miao, DU Yu-xuan, ZHANG Min, XU Fei, MA Yue. Construction of a flexible, integrated rechargeable Li battery based on a coaxial anode with a carbon fiber core encapsulated in FeNiMnO4 and a nitrogen-doped carbon sheath. New Carbon Mater., 2022, 37(5): 944-955. doi: 10.1016/S1872-5805(22)60617-6
Citation: ZOU Yi-ming, SUN Chang-chun, LI Shao-wen, BAI Miao, DU Yu-xuan, ZHANG Min, XU Fei, MA Yue. Construction of a flexible, integrated rechargeable Li battery based on a coaxial anode with a carbon fiber core encapsulated in FeNiMnO4 and a nitrogen-doped carbon sheath. New Carbon Mater., 2022, 37(5): 944-955. doi: 10.1016/S1872-5805(22)60617-6

基于同轴碳/四元氧化物复合负极构建柔性、集成的可充电锂电池

doi: 10.1016/S1872-5805(22)60617-6
基金项目: 国家自然科学基金(52173229,51972270);陕西省教育厅自然科学项目(18JK0579);凝固技术国家重点实验室 (NWPU) 研究基金资助项目(2021-TS-03);中央高校基本科研业务费专项资金(3102019JC005);陕西省重点研发项目(2019ZDLGY04-05)
详细信息
    通讯作者:

    徐 飞,研究员. E-mail:feixu@nwpu.edu.cn

    马 越,教授. E-mail:mayue04@nwpu.edu.cn

  • 中图分类号: TB33

Construction of a flexible, integrated rechargeable Li battery based on a coaxial anode with a carbon fiber core encapsulated in FeNiMnO4 and a nitrogen-doped carbon sheath

More Information
  • 摘要: 柔性的电池构型很大程度上取决于电极结构设计的独特性,即在动力载荷下精确控制电极结构稳定性、成分兼容性与形状一致性。在本研究中,作者开发了在炭布上负载的四元氧化物纳米晶的同轴阵列柔性负极(CC@FeNiMnO4-600),并进一步借助负极设计中准凝胶三元共聚物来有效调控同轴阵列表面包覆的 N 掺杂炭涂层。恒流充放电研究表明,CC@FeNiMnO4-600 负极表现出~1.40 mAh cm−2 的高面积容量和良好的循环效率(1 mA cm−2)。将柔性负极与少层氮化硼改性聚环氧乙烷固体电解质相匹配,所构建的柔性器件也同时展现出良好的界面电化学相容性和柔韧性。这种优异的性能得益于上述柔性负极各组分的协同效应,即有效平衡了四元氧化物高活性储能位点与柔韧的同轴结构;此外,紧密的 PEO //负极界面结合能够实现良好、连续的离子传输,本工作有望促进固态原型在可穿戴电子设备中的实际应用。
  • FIG. 1818.  FIG. 1818.

    FIG. 1818..  FIG. 1818.

    1.  Schematic illustration of the preparation procedure for the coaxial CC@FeNiMnO4-600 configurations. Process I surfactant-assisted wet chemistry reaction of the CC@FeNiMnO4, process II quasi-gel-state tri-copolymer derived N-doped carbon coating formed on the coaxial configuration.

    Figure  1.  SEM images of CC@FeNiMnO4-600 composite at (a) low and (b) high magnifications. (c) TEM image of the carbon encapsulation of the FeNiMnO4 nanocrystals and high resolution TEM image (inset) of the edge of the representative FeNiMnO4 nanocrystal with the highlighted lattice fringes. (d) TEM image of the representative region of the FeNiMnO4 nanocrystals and corresponding EDX elemental maps of (e) C, (f) Fe, (g) N, (h) Mn and (i) Ni. (j) Line scan elemental mapping of the CC@FeNiMnO4-600 composite

    Figure  2.  (a) Mn2p, (b) Ni2p and (c) Fe2p core-level XPS spectra of the CC@FeNiMnO4-600 composite. (d) C1s, (e) N1s and (f) O1s core-level XPS spectra of the CC@FeNiMnO4-600 composite with multiple envelopes.

    Figure  3.  (a) XRD patterns and (b) Raman spectra of the CC@FeNiMnO4 composites and carbon cloth; (c) Mossbauer spectrum of CC@FeNiMnO4-600 composite.

    Figure  4.  (a) The 1st, 2nd, 10th, 50th and 100th discharge-charge curves of CC@FeNiMnO4-600 electrode and the 1st discharge-charge curve of CC@FeNiMnO4-600 w/o NC electrode. (b) Long-term cycling performance of CC@FeNiMnO4-600 and CC@FeNiMnO4-600 w/o NC electrode at a current density of 1 mAh cm−2.(c) Rate performance of CC@FeNiMnO4-600 and CC@FeNiMnO4-600 w/o NC electrode at different current densities. (d) The reversible capacities of the CC@FeNiMnO4-600, CC@FeNiMnO4-650, CC@FeNiMnO4-550 and CC@FeNiMnO4-600 w/o NC electrode at different current densities

    Figure  5.  The post-mortem SEM characterizations of (a) CC@FeNiMnO4-600 electrode after 100 cycles and (b) CC@FeNiMnO4-600 w/o NC after 100 cycles at 1 mA cm-2 and corresponding elemental maps of O, C, Mn, Fe, P, and F. (c) Sum of irreversible capacity loss during the cycling of CC@FeNiMnO4-600 and CC@FeNiMnO4-600 w/o NC electrode.

    Figure  6.  (a) Conductivity of the CC@FeNiMnO4-500, 550, 600 and 650 electrodes at various strain states. (b) Resistance of the CC@FeNiMnO4-500, 550, 600, 650 and CC electrodes at various bending states. (c) The cycle performance of the CC@FeNiMnO4-600//liquid electrolyte//LiFePO4 pouch cell at the repetitive flat, and bended states. (d) The integrated configuration of the CC@FeNiMnO4-600//liquid electrolyte//LiFePO4 pouch cell.

    Figure  7.  (a) SEM and TEM images of few-layer boron nitride (FL-BN). (b) The optical photographs of the FL-BN/PEO SPE and schematic illustration of mechanical property test. (c-f) The optical photographs of the CC@FeNiMnO4-600ǁFL-BN/PEO SPEǁLiFePO4 pouch cell at the flat, bending, and cut states, the cut pouch cell can light up a LED light.

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出版历程
  • 收稿日期:  2022-04-08
  • 修回日期:  2022-05-27
  • 网络出版日期:  2022-05-30
  • 刊出日期:  2022-10-01

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