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Supremely elastic gel polymer electrolyte enables a reliable electrode structure for silicon-based anodes

Author

Listed:
  • Qingquan Huang

    (The Pennsylvania State University)

  • Jiangxuan Song

    (The Pennsylvania State University
    Xi’an Jiaotong University)

  • Yue Gao

    (The Pennsylvania State University)

  • Daiwei Wang

    (The Pennsylvania State University)

  • Shuai Liu

    (The Pennsylvania State University)

  • Shufu Peng

    (Ashland Specialty Ingredients)

  • Courtney Usher

    (Ashland Specialty Ingredients)

  • Alan Goliaszewski

    (Ashland Specialty Ingredients)

  • Donghai Wang

    (The Pennsylvania State University)

Abstract

Silicon-based materials are promising anodes for next-generation lithium-ion batteries, owing to their high specific capacities. However, the huge volume expansion and shrinkage during cycling result in severe displacement of silicon particles and structural collapse of electrodes. Here we report the use of a supremely elastic gel polymer electrolyte to address this problem and realize long-term stable cycling of silicon monoxide anodes. The high elasticity of the gel polymer electrolyte is attributed to the use of a unique copolymer consisting of a soft ether domain and a hard cyclic ring domain. Consequently, the displacement of silicon monoxide particles and volume expansion of the electrode were effectively reduced, and the damage caused by electrode cracking is alleviated. A SiO|LiNi0.5Co0.2Mn0.3O2 cell shows 70.0% capacity retention in 350 cycles with a commercial-level reversible capacity of 3.0 mAh cm−2 and an average Coulombic efficiency of 99.9%.

Suggested Citation

  • Qingquan Huang & Jiangxuan Song & Yue Gao & Daiwei Wang & Shuai Liu & Shufu Peng & Courtney Usher & Alan Goliaszewski & Donghai Wang, 2019. "Supremely elastic gel polymer electrolyte enables a reliable electrode structure for silicon-based anodes," Nature Communications, Nature, vol. 10(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-13434-5
    DOI: 10.1038/s41467-019-13434-5
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    Cited by:

    1. Yi-Fan Tian & Shuang-Jie Tan & Chunpeng Yang & Yu-Ming Zhao & Di-Xin Xu & Zhuo-Ya Lu & Ge Li & Jin-Yi Li & Xu-Sheng Zhang & Chao-Hui Zhang & Jilin Tang & Yao Zhao & Fuyi Wang & Rui Wen & Quan Xu & Yu-, 2023. "Tailoring chemical composition of solid electrolyte interphase by selective dissolution for long-life micron-sized silicon anode," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    2. Ai-Min Li & Zeyi Wang & Travis P. Pollard & Weiran Zhang & Sha Tan & Tianyu Li & Chamithri Jayawardana & Sz-Chian Liou & Jiancun Rao & Brett L. Lucht & Enyuan Hu & Xiao-Qing Yang & Oleg Borodin & Chun, 2024. "High voltage electrolytes for lithium-ion batteries with micro-sized silicon anodes," Nature Communications, Nature, vol. 15(1), pages 1-14, December.
    3. Hui Pan & Lei Wang & Yu Shi & Chuanchao Sheng & Sixie Yang & Ping He & Haoshen Zhou, 2024. "A solid-state lithium-ion battery with micron-sized silicon anode operating free from external pressure," Nature Communications, Nature, vol. 15(1), pages 1-12, December.
    4. Seongjae Ko & Xiao Han & Tatau Shimada & Norio Takenaka & Yuki Yamada & Atsuo Yamada, 2023. "Electrolyte design for lithium-ion batteries with a cobalt-free cathode and silicon oxide anode," Nature Sustainability, Nature, vol. 6(12), pages 1705-1714, December.

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