Polyphenol-Gated Composite Electrolytes with Enhanced Cross-Phase Lithium-Ion Transport for Solid-State Lithium Batteries (IMAGE)

Shanghai Jiao Tong University Journal Center

Polyphenol-Gated Composite Electrolytes with Enhanced Cross-Phase Lithium-Ion Transport for Solid-State Lithium Batteries

Caption

  • A biomimetic polyphenol-gated strategy is proposed to promote interfacial Li+ - selective transport in composite solid electrolytes by chemically bonding the polymer matrix and ceramic nanofibers.
  • The polyphenol interlayers serve as the chemical gates with –OH and –NH groups to immobilize lithium salt anions and carbonyl groups to coordinate Li+, thus lowering the energy barrier and promoting rapid Li+ transport at interface.
  • The assembled Li||LiFePO4 batteries exhibits an impressive capacity of 151.6 mAh g−1 and long lifespan over 600 cycles.

Credit

Xiaoxiao Li, Minqiang Jiang, Kai Chen, Zhixiang Cai, Yingxin Zhang, Jiamei Luo, Lei Hou, Yazhou Zhou, Chao Zhang, Hui Zhang*, Feili Lai*, Yue-E Miao*, Tianxi Liu, Klaus Müllen.

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CC BY-NC-ND

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