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Enhancing ionic conductivity in composite polymer electrolytes with well-aligned ceramic nanowires

Author

Listed:
  • Wei Liu

    (Stanford University)

  • Seok Woo Lee

    (Geballe Laboratory for Advanced Materials, Stanford University)

  • Dingchang Lin

    (Stanford University)

  • Feifei Shi

    (Stanford University)

  • Shuang Wang

    (Stanford University)

  • Austin D. Sendek

    (Stanford University)

  • Yi Cui

    (Stanford University
    Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory)

Abstract

In contrast to conventional organic liquid electrolytes that have leakage, flammability and chemical stability issues, solid electrolytes are widely considered as a promising candidate for the development of next-generation safe lithium-ion batteries. In solid polymer electrolytes that contain polymers and lithium salts, inorganic nanoparticles are often used as fillers to improve electrochemical performance, structure stability, and mechanical strength. However, such composite polymer electrolytes generally have low ionic conductivity. Here we report that a composite polymer electrolyte with well-aligned inorganic Li+-conductive nanowires exhibits an ionic conductivity of 6.05 × 10−5 S cm-1 at 30 ∘C, which is one order of magnitude higher than previous polymer electrolytes with randomly aligned nanowires. The large conductivity enhancement is ascribed to a fast ion-conducting pathway without crossing junctions on the surfaces of the aligned nanowires. Moreover, the long-term structural stability of the polymer electrolyte is also improved by the use of nanowires.

Suggested Citation

  • Wei Liu & Seok Woo Lee & Dingchang Lin & Feifei Shi & Shuang Wang & Austin D. Sendek & Yi Cui, 2017. "Enhancing ionic conductivity in composite polymer electrolytes with well-aligned ceramic nanowires," Nature Energy, Nature, vol. 2(5), pages 1-7, May.
    • Handle: RePEc:nat:natene:v:2:y:2017:i:5:d:10.1038_nenergy.2017.35
    DOI: 10.1038/nenergy.2017.35
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    Cited by:

    1. Yun Su & Xiaohui Rong & Ang Gao & Yuan Liu & Jianwei Li & Minglei Mao & Xingguo Qi & Guoliang Chai & Qinghua Zhang & Liumin Suo & Lin Gu & Hong Li & Xuejie Huang & Liquan Chen & Binyuan Liu & Yong-She, 2022. "Rational design of a topological polymeric solid electrolyte for high-performance all-solid-state alkali metal batteries," Nature Communications, Nature, vol. 13(1), pages 1-15, December.
    2. Shucheng Wang & Liuyang Han & Hanxiao Liu & Ying Dong & Xiaohao Wang, 2022. "Ionic Gelatin-Based Flexible Thermoelectric Generator with Scalability for Human Body Heat Harvesting," Energies, MDPI, vol. 15(9), pages 1-18, May.
    3. Minxia Jiang & Yingjie Hu & Baoguang Mao & Yixin Wang & Zhen Yang & Tao Meng & Xin Wang & Minhua Cao, 2022. "Strain-regulated Gibbs free energy enables reversible redox chemistry of chalcogenides for sodium ion batteries," Nature Communications, Nature, vol. 13(1), pages 1-13, December.
    4. Zongjie Sun & Kai Xi & Jing Chen & Amor Abdelkader & Meng-Yang Li & Yuanyuan Qin & Yue Lin & Qiu Jiang & Ya-Qiong Su & R. Vasant Kumar & Shujiang Ding, 2022. "Expanding the active charge carriers of polymer electrolytes in lithium-based batteries using an anion-hosting cathode," Nature Communications, Nature, vol. 13(1), pages 1-11, December.
    5. Ziyu Song & Fangfang Chen & Maria Martinez-Ibañez & Wenfang Feng & Maria Forsyth & Zhibin Zhou & Michel Armand & Heng Zhang, 2023. "A reflection on polymer electrolytes for solid-state lithium metal batteries," Nature Communications, Nature, vol. 14(1), pages 1-13, December.
    6. Hiram Kwak & Jae-Seung Kim & Daseul Han & Jong Seok Kim & Juhyoun Park & Gihan Kwon & Seong-Min Bak & Unseon Heo & Changhyun Park & Hyun-Wook Lee & Kyung-Wan Nam & Dong-Hwa Seo & Yoon Seok Jung, 2023. "Boosting the interfacial superionic conduction of halide solid electrolytes for all-solid-state batteries," Nature Communications, Nature, vol. 14(1), pages 1-14, December.

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