Porous nanocomposite gel polymer electrolyte with high ionic conductivity and superior electrolyte retention capability for long-cycle-life flexible zinc–air batteries

By Xiayue Fan, Jie Liu, Zhishuang Song, Xiaopeng Han, Yida Deng, C. Zhong, Wenbin Hu. Nano Energy, 2019

269 citations recorded by the source corpus.

Abstract Zinc–air batteries (ZABs) with high energy density and low cost have ignited tremendous interest in meeting the ever-growing demands for flexible and portable electronics. As the “blood” of a flexible ZAB, the semi-solid/solid-state electrolyte plays a critical role in the battery performance such as cycling performance, rate characteristics and power output. Herein, a novel porous-structured poly (vinyl alcohol) (PVA)-based nanocomposite gel polymer electrolyte (GPE) with the optimum addition of silica (SiO2) was synthesized and utilized in a bendable sandwich-type ZAB. The fabricated porous PVA-based nanocomposite GPE exhibited a high ionic conductivity (57.3 mS cm–1), excellent water retention capability as well as improved thermal and mechanical properties under ambient condition, with which the assembled flexible ZAB presented excellent cycle stability, discharge performance and power density. Furthermore, the flexible porous PVA–SiO2 based ZAB sets could power a light-emitting diode screen, a handheld electric fan, or even a mobile phone, demonstrating its promising potential for high-performance ZABs with high safety, cost-effectiveness, and excellent flexibility.

Subfields: Electrical and Electronic Engineering, Electronic, Optical and Magnetic Materials

View Paper: https://www.semanticscholar.org/paper/0b693e577d280ed1552c1f79a3c2822169bee6ca

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In Electrical and Electronic Engineering

  1. A. Yu
  2. Ya-Ping Deng
  3. Zhongwei Chen
  4. Yi Jiang

In Electronic, Optical and Magnetic Materials

  1. A. Yu
  2. Zhongwei Chen

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