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High-Performance Solid-state Zn Batteries Based on Free-standing Organic Cathode and Metal Zn Anode with Ordered Nano-architecture

Abstract

The increasing demand of large-scale manufacture of wearable electronics requires applicable energy storage devices with high-performance and safety. In this paper, we reported a solid-state Zn battery based on free-standing organic cathode and metal Zn anode with ordered alignment nano-architecture. The cathode is fabricated by depositing organic nanowire arrays on carbon nanotube film via in-situ polymerization process, and the anode was prepared by electrodepositing Zn nanosheet arrays on carbon cloth. To avoid electrolyte leakage risks, the pseudo-solid-state PAAM-ZnSO4 gel electrolyte is employed, which is synthesized via a chemical cross-linking and film casting approach. The ordered aligned nanostructure of PANI nanowire arrays and zinc nanosheet arrays exhibits superior electrochemical performance, while the free-standing electrode configuration simplifies the battery fabrication process and offers excellent flexibility. The resulting solid-state Zn battery delivered a high capacity of 144 mAh/g at a current density of 0.2 A/g, a 91.1% capacity retention after 150 cycles at a current density of 0.5 A/g, and excellent flexibility under different bending states. This high-performance solid-state Zn battery provides a promising alternative of the energy storage device for the next generation wearable electronics.

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Publication details

The article was received on 05 Sep 2019, accepted on 07 Nov 2019 and first published on 10 Nov 2019


Article type: Paper
DOI: 10.1039/C9NA00562E
Nanoscale Adv., 2019, Accepted Manuscript
  • Open access: Creative Commons BY-NC license
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    High-Performance Solid-state Zn Batteries Based on Free-standing Organic Cathode and Metal Zn Anode with Ordered Nano-architecture

    X. Xiao, W. Liu, K. Wang, C. Li, X. Sun, X. Zhang, W. Liu and Y. Ma, Nanoscale Adv., 2019, Accepted Manuscript , DOI: 10.1039/C9NA00562E

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