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Water-mediated crystallohydrate-polymer composite as a phase-change electrolyte
Ziyang Tai1,2, Junjie Wei2, Jie Zhou2
1Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, Shanghai University of Electric Power, Shanghai, 200090, China.
Nature Communications
|April 17, 2020
Summary
Researchers developed a novel composite electrolyte inspired by bone structure for advanced wearable electronics. This material offers high mechanical strength, ionic mobility, and thermal-shock resistance, enabling robust and efficient energy storage devices.
Area of Science:
- Materials Science
- Electrochemistry
- Wearable Electronics
Background:
- The demand for flexible and processable electrolytes in wearable electronics is increasing.
- Existing non-liquid electrolytes often lack a combination of mechanical strength, ionic mobility, and thermal stability.
Purpose of the Study:
- To develop a bioinspired, processable composite electrolyte for advanced energy storage devices.
- To investigate the properties and performance of a novel phase-change composite electrolyte.
Main Methods:
- Fabrication of a composite electrolyte via water-mediated thermal mixing of crystallohydrate and polymer.
- Characterization of mechanical strength, ionic mobility, and electrochemical performance.
- Assembly and testing of devices utilizing the composite electrolyte.
Main Results:
- The composite electrolyte exhibits high mechanical strength and ionic mobility.
- Achieved a wide operating voltage range and high faradic capacity, leading to high energy density.
- Demonstrated excellent thermal-shock resistance and convenient device assembly due to mechanical interlocking and phase-change effects.
Conclusions:
- The developed phase-change composite electrolyte offers a unique combination of properties not found in other non-liquid electrolytes.
- This work presents a universal strategy for fabricating thermally manageable devices using phase-change electrolytes for applications in wearable electronics.
