A Novel Ultrathin Multiple-Kinetics-Enhanced Polymer Electrolyte Editing Enabled Wide-Temperature Fast-Charging Solid-State Zinc Metal Batteries

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

  • Yishu Li
  • Yan He
  • Fan Li
  • Kefeng Ouyang
  • Dingtao Ma
  • Juan Feng
  • Jiali Huang
  • Jinlai Zhao
  • Ming Yang
  • Yanyi Wang
  • Yangsu Xie
  • Hongwei Mi
  • Peixin Zhang

Related Research Unit(s)

Detail(s)

Original languageEnglish
Article number2307736
Journal / PublicationAdvanced Functional Materials
Volume34
Issue number4
Online published19 Oct 2023
Publication statusPublished - 22 Jan 2024

Abstract

The sluggish ion transport kinetics and poor interface compatibility are the major challenges for developing high-performance solid-state zinc metal batteries. Here, using the densified polyacrylonitrile/silicon dioxide (PAN-SiO2) nanofiber membrane as a unique multifunctional mediator, a novel mediator-bridged type of ultrathin (28.6 µm) polymer electrolyte that is rationally designed. The PAN/SiO2 /polyethylene oxide/Zn(OTf)2(PSPZ) polymer electrolyte is demonstrated to significantly enhance multiple kinetics. In addition to superior mechanical properties, the efficient thermal conductive effect endows it with good high-temperature structural stability. Interestingly, a unique PAN skeleton-locking-anion-enabled fast ion transport mechanism is uncovered to achieve a high Zn2+ migration number (0.71). Moreover, an efficient dendrite-free Zn deposition guided by a flat dense SEI is demonstrated. In this case, highly reversible Zn metal anodes can be realized in the temperature range extending to −25–80 °C, as well as an impressive 4800 h-cycle lifespan at the condition of 0.1 mA cm−2. Beyond that, wide-temperature, high-rate, durable PSPZ-based solid-state Zn/VO2 batteries are also successfully verified. This brand-new concept of multiple-kinetics-enhanced polymer electrolyte design can provide a new perspective for developing all-climate fast-charging solid-state batteries, including but not limited to zinc metal batteries. © 2023 Wiley-VCH GmbH.

Research Area(s)

  • anion locking, interface compatibility, polymer electrolytes, thermal conduction, wide-temperature operation

Citation Format(s)

A Novel Ultrathin Multiple-Kinetics-Enhanced Polymer Electrolyte Editing Enabled Wide-Temperature Fast-Charging Solid-State Zinc Metal Batteries. / Li, Yishu; Yang, Xiaodan; He, Yan et al.
In: Advanced Functional Materials, Vol. 34, No. 4, 2307736, 22.01.2024.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review