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Ordered network engineering enables liquid-comparable conductivity of gel polymer electrolytes for high-performance energy devices
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DOI：10.1016/j.mattod.2026.103482.png)
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Abstract
En 中文
While gel polymer electrolytes (GPEs) are safer and more flexible than liquid electrolytes, their inherently disordered polymer networks drastically hinder ion transport and reduce ionic conductivity by two or three orders of magnitude. Thus, achieving liquid-level conductivity in GPEs continues to be a challenge in advancing ionic and energy devices. This study successfully constructs a high conductivity GPE of a liquid-comparable level by ordered network design with selective, efficient photoinitiated thiol–ene click chemistry. The ordered polymer networks suppress crystallization and topological defects, thereby enabling the rapid gelation (< 10 s) at ultra-low content (5 wt%), and they minimize diffusion resistance by reducing ion transport activation energy (5.8 kJ/mol) to the liquid level (6.7 kJ/mol). The optimized GPEs deliver high conductivity across nine widely used electrolytes, achieving a record-high 11.3% efficiency in quasi-solid-state dye-sensitized solar cells utilizing bulky copper complexes, and enabling ultrafast-charging lithium-metal batteries with 83% capacity retention after 1,000 cycles at 5C. This click-enabled GPE design overcomes the long-term conductivity gap between liquid and solid electrolytes, and unlocks the monomer engineering potential for scalable, multifunctional development of electrochemical energy devices.
Keywords:
Gel polymer electrolytes
Liquid-comparable conductivity
Click chemistry
Ordered polymer networks
Electrochemical energy devices
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22
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279
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