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A Simple and Scalable Fabrication Method for Organic Electronic Devices on Textiles

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Published on: March 13, 2017

Energetic All-Polymer Fiber Batteries Enabled by Interface-Interlocked Water-In-Network Electrolytes for Wearable

Kangkang Jia¹, Qimin Liang¹, Yang Hong²

¹School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen, China.

Advanced Materials (Deerfield Beach, Fla.)

|June 2, 2026

Summary

Researchers developed a novel "water-in-network" electrolyte for safer, sustainable all-polymer sodium-ion fiber batteries. This innovation enhances electrochemical stability and mechanical integrity for flexible electronics and wearable health monitoring.

Keywords:

all‐polymer battery aqueous quasi‐solid polymer electrolyte polymer network water confinement wearable electronics

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Conformable Wearable Electrodes: From Fabrication to Electrophysiological Assessment

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Published on: July 22, 2022

Area of Science:

Materials Science
Electrochemistry
Polymer Science

Background:

All-polymer fiber batteries offer safety and sustainability for wearables.
Current limitations include narrow electrochemical stability windows and interface instability.

Purpose of the Study:

To engineer a novel electrolyte for improved performance in all-polymer fiber batteries.
To address challenges in electrochemical stability and mechanical robustness.

Main Methods:

Developed a "water-in-network" (WIN) electrolyte by modulating polymer network crosslinking density.
Investigated the effect of crosslinking on water activity and dynamics.
Utilized in situ interfacial polymerization to create mechanically interlocked interfaces.

Main Results:

Discovered a "water confinement" effect influencing water activity non-monotonically with crosslinking density.
Achieved a significantly expanded electrochemical stability window of 3.4 V.
Demonstrated an energy density of 92.4 Wh kg⁻¹ for the sodium-ion fiber battery.
Maintained 78% capacity after 12,000 bending cycles due to suppressed delamination.
Successfully powered a fabric-based chemical sensor for on-body health monitoring.

Conclusions:

The WIN electrolyte effectively enhances electrochemical and mechanical stability in all-polymer fiber batteries.
This technology enables robust, flexible energy storage solutions for advanced wearable applications.
The developed batteries are suitable for powering integrated sensors in smart textiles for real-time health monitoring.