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A Full-Device Autonomous Self-Healing Stretchable Soft Battery from Self-Bonded Eutectogels.

Chaonan Gu1, Mengke Wang1, Kaihuang Zhang1

  • 1Henan Provincial Key Laboratory of Surface & Interface Science, Zhengzhou University of Light Industry, Zhengzhou, 450002, P. R. China.

Advanced Materials (Deerfield Beach, Fla.)
|November 19, 2022
PubMed
Summary

Researchers developed a novel soft battery with self-healing capabilities. This all-eutectogel soft battery (AESB) demonstrates remarkable stretchability and autonomous repair for advanced energy storage applications.

Keywords:
all-eutectogel soft batteryfull-cell autonomous self-healingomnidirectional intrinsically stretchableself-bondingtemperature tolerance

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Soft Robotics

Background:

  • Next-generation energy storage demands soft, stretchable, and self-healable devices.
  • Existing self-healable batteries often lack sufficient stretchability or full-device healing.
  • Previous approaches typically focus on healing individual components, not the entire device.

Purpose of the Study:

  • To develop a fully self-healable and highly stretchable soft battery.
  • To create an all-component self-bonding strategy for intrinsic material properties.
  • To explore the potential of this material platform for various soft electronic applications.

Main Methods:

  • An all-component self-bonding strategy was employed using eutectogels.
  • A five-layered soft battery architecture was constructed.
  • Mechanical and electrochemical performance were tested across a wide temperature range (-20 to 60 °C).

Main Results:

  • The developed all-eutectogel soft battery (AESB) exhibits autonomous self-healability and >1000% areal strain stretchability.
  • The battery recovers both mechanical and electrochemical performance without external stimuli.
  • The AESB demonstrates excellent interfacial compatibility between electrodes, electrolyte, and substrate.

Conclusions:

  • The AESB offers a viable solution for soft, stretchable, and self-healable energy storage.
  • The eutectogel platform enables the fabrication of intrinsically self-healing, stretchable multi-layered electronics.
  • This technology holds promise for embodied energy technologies, displays, sensors, circuits, and soft robots.