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Printed Zinc Paper Batteries.

Peihua Yang1, Jia Li2, Seok Woo Lee2,3

  • 1School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore.

Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
|November 6, 2021
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Summary
This summary is machine-generated.

Researchers developed a biodegradable hydrogel-reinforced cellulose paper (HCP) for eco-friendly paper batteries. These printed batteries offer high energy density and flexibility, enabling sustainable, self-powered electronic systems.

Keywords:
hydrogelpaper electronicsprinted batteryself-powered systemzinc batteries

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Area of Science:

  • Materials Science
  • Sustainable Electronics
  • Energy Storage

Background:

  • Paper electronics present an eco-friendly alternative for flexible and wearable systems.
  • Existing paper-based batteries require compatibility with high-fidelity printing processes.
  • Need for sustainable and biodegradable materials in electronic components.

Purpose of the Study:

  • To design and evaluate hydrogel-reinforced cellulose paper (HCP) as a separator and solid electrolyte for paper batteries.
  • To assess the performance and properties of printed paper batteries utilizing HCP.
  • To demonstrate the feasibility of using HCP for constructing self-powered, eco-friendly electronic systems.

Main Methods:

  • Development of hydrogel-reinforced cellulose paper (HCP).
  • Fabrication of zinc-metal (Ni and Mn) batteries printed on HCP.
  • Characterization of battery performance, including volumetric energy density, strain tolerance, biodegradability, and compatibility with flexible circuits.

Main Results:

  • HCP exhibits enhanced strain tolerance compared to pristine papers and is biodegradable within four weeks.
  • Printed paper batteries achieved a volumetric energy density of approximately 26 mWh cm⁻³.
  • The batteries demonstrated cuttability and seamless integration with flexible circuits and devices.

Conclusions:

  • Hydrogel-reinforced paper is a viable material for creating flexible, biodegradable, and high-performance paper batteries.
  • The developed paper batteries are suitable for integration into self-powered electronic systems, such as those with solar cells and LEDs.
  • This work highlights the potential of HCP for ubiquitous, flexible, and environmentally friendly electronics.