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Ladderphane copolymers for high-temperature capacitive energy storage

Author

Listed:
  • Jie Chen

    (Shanghai Jiao Tong University)

  • Yao Zhou

    (The Pennsylvania State University)

  • Xingyi Huang

    (Shanghai Jiao Tong University)

  • Chunyang Yu

    (Shanghai Jiao Tong University)

  • Donglin Han

    (Shanghai Jiao Tong University)

  • Ao Wang

    (University of Michigan-Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University)

  • Yingke Zhu

    (Shanghai Jiao Tong University)

  • Kunming Shi

    (Shanghai Jiao Tong University)

  • Qi Kang

    (Shanghai Jiao Tong University)

  • Pengli Li

    (Shanghai Jiao Tong University)

  • Pingkai Jiang

    (Shanghai Jiao Tong University)

  • Xiaoshi Qian

    (Shanghai Jiao Tong University)

  • Hua Bao

    (University of Michigan-Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University)

  • Shengtao Li

    (Xi’an Jiaotong University)

  • Guangning Wu

    (Southwest Jiaotong University)

  • Xinyuan Zhu

    (Shanghai Jiao Tong University)

  • Qing Wang

    (The Pennsylvania State University)

Abstract

For capacitive energy storage at elevated temperatures1–4, dielectric polymers are required to integrate low electrical conduction with high thermal conductivity. The coexistence of these seemingly contradictory properties remains a persistent challenge for existing polymers. We describe here a class of ladderphane copolymers exhibiting more than one order of magnitude lower electrical conductivity than the existing polymers at high electric fields and elevated temperatures. Consequently, the ladderphane copolymer possesses a discharged energy density of 5.34 J cm−3 with a charge–discharge efficiency of 90% at 200 °C, outperforming the existing dielectric polymers and composites. The ladderphane copolymers self-assemble into highly ordered arrays by π–π stacking interactions5,6, thus giving rise to an intrinsic through-plane thermal conductivity of 1.96 ± 0.06 W m−1 K−1. The high thermal conductivity of the copolymer film permits efficient Joule heat dissipation and, accordingly, excellent cyclic stability at elevated temperatures and high electric fields. The demonstration of the breakdown self-healing ability of the copolymer further suggests the promise of the ladderphane structures for high-energy-density polymer capacitors operating under extreme conditions.

Suggested Citation

  • Jie Chen & Yao Zhou & Xingyi Huang & Chunyang Yu & Donglin Han & Ao Wang & Yingke Zhu & Kunming Shi & Qi Kang & Pengli Li & Pingkai Jiang & Xiaoshi Qian & Hua Bao & Shengtao Li & Guangning Wu & Xinyua, 2023. "Ladderphane copolymers for high-temperature capacitive energy storage," Nature, Nature, vol. 615(7950), pages 62-66, March.
  • Handle: RePEc:nat:nature:v:615:y:2023:i:7950:d:10.1038_s41586-022-05671-4
    DOI: 10.1038/s41586-022-05671-4
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    Citations

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    Cited by:

    1. Jianhong Duan & Kun Wei & Qianbiao Du & Linzhao Ma & Huifen Yu & He Qi & Yangchun Tan & Gaokuo Zhong & Hao Li, 2024. "High-entropy superparaelectrics with locally diverse ferroic distortion for high-capacitive energy storage," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
    2. Zilong Xie & Jianan Zhu & Zhengli Dou & Yongzheng Zhang & Ke Wang & Kai Wu & Qiang Fu, 2024. "Liquid metal interface mechanochemistry disentangles energy density and biaxial stretchability tradeoff in composite capacitor film," Nature Communications, Nature, vol. 15(1), pages 1-12, December.
    3. Rui Lu & Jian Wang & Tingzhi Duan & Tian-Yi Hu & Guangliang Hu & Yupeng Liu & Weijie Fu & Qiuyang Han & Yiqin Lu & Lu Lu & Shao-Dong Cheng & Yanzhu Dai & Dengwei Hu & Zhonghui Shen & Chun-Lin Jia & Ch, 2024. "Metadielectrics for high-temperature energy storage capacitors," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
    4. Rishi Gurnani & Stuti Shukla & Deepak Kamal & Chao Wu & Jing Hao & Christopher Kuenneth & Pritish Aklujkar & Ashish Khomane & Robert Daniels & Ajinkya A. Deshmukh & Yang Cao & Gregory Sotzing & Rampi , 2024. "AI-assisted discovery of high-temperature dielectrics for energy storage," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    5. Xinhui Li & Bo Liu & Jian Wang & Shuxuan Li & Xin Zhen & Jiapeng Zhi & Junjie Zou & Bei Li & Zhonghui Shen & Xin Zhang & Shujun Zhang & Ce-Wen Nan, 2024. "High-temperature capacitive energy storage in polymer nanocomposites through nanoconfinement," Nature Communications, Nature, vol. 15(1), pages 1-11, December.

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