Related Experiment Video
Updated: Aug 16, 2026
05:33
Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
Published on: August 12, 2013
Cross-Linked Poly(Ethylene Carbonate/Ethylene Oxide) Electrolyte for Solid-State Li-Ion Batteries Exploiting
Nantapat Soontornnon1, Edoardo Barcaro2, Shuto Takayama3
1Institute of Global Innovation Research (GIR), Tokyo University of Agriculture and Technology, 3-8-1 Harumi-cho, Fuchu-shi, Tokyo 183-8538, Japan.
ACS Polymers Au
|August 15, 2026
Summary
Researchers developed a novel, additive-free polymer electrolyte membrane for safer, high-capacity all-solid-state batteries. This breakthrough enables robust membranes for next-generation energy storage solutions.
Area of Science:
- Materials Science
- Electrochemistry
- Polymer Science
Background:
- Next-generation lithium-ion batteries face challenges with flammable liquid electrolytes and high-capacity anodes.
- Safety and performance limitations hinder the development of advanced energy storage solutions.
Purpose of the Study:
- To develop a novel, additive-free polymer electrolyte membrane for all-solid-state batteries.
- To address safety concerns and enhance the performance of high-capacity battery systems.
Main Methods:
- Synergistic blending of poly-(ethylene carbonate) and poly-(ethylene oxide) copolymers.
- Concentration of lithium bis-(fluorosulfonyl)-imide (LiFSI) salt up to 140 mol %.
- Fabrication of a cross-linked polymer electrolyte membrane (CP-EM) for all-solid-state batteries (ASSBs).
Main Results:
- The additive-free CP-EM exhibited a high lithium-ion transference number (0.61) and low activation energy (0.110 eV).
- Anodic stability exceeded 4.0 V with a suitable interphase for lithium metal.
- A full cell with LiFePO4 membrane-electrode assembly and a silicon-based anode delivered ~140 mAh g-1 at 70 °C.
Conclusions:
- The study demonstrates a viable synergistic design for polymer electrolyte membranes balancing ion transport and structural integrity.
- The developed CP-EM shows practical potential for scalable, high-temperature all-solid-state batteries.
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