交联-塑化调控弹性体固态电解质的力学-电化学耦合机制

doi:10.19976/j.cnki.43-1448/TF.2026046

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Abstract In order to solve the key problems of elastomeric solid electrolytes for flexible electronic equipment, specifically the balance between mechanical property and ion transport performance and interface stability, isophorone diisocyanate (IPDI) and polycarbonate diol (PCDL) modified elastomeric solid electrolyte were prepared in this paper. Through microscopic characterization, mechanical and electrochemical performance tests, the regulation mode and coupling mechanism of modified components on electrolytes were systematically explored. The results show that IPDI forms a three-dimensional network through covalent crosslinking, thereby enhancing the strength and stability of the electrolyte. However, the increase of crosslinking density will limit the segment motion, increase the ion impedance, and narrow the electrochemical stability window. PCDL destroys the ordered stacking of segments through flexible plasticization, expands the amorphous region, and significantly enhances toughness and ionic conductivity. However, too much PCDL will lead to a slight increase in impedance due to segment winding. In addition, the study also reveals the coupling mechanism of synergistic regulation of mechanical-electrochemical properties by crosslinking enhancement and flexible plasticization, which provides a clear regulatory framework for the synergistic optimization of mechanical and electrochemical properties in elastomeric solid electrolytes.

Key words： polymer electrolyte elastomeric solid electrolyte covalent crosslinking mechanical property coupling mechanism

Received: 20 April 2026 Published: 12 November 2026

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	ZHOU Jingya
	XIAO Peng
	LIU Chen
	PANG Liang
	LI Zhuan

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ZHOU Jingya,XIAO Peng,LIU Chen, et al. Mechanical-electrochemical coupling mechanism of elastomeric solid electrolytes regulated by crosslinking-plasticization[J]. Materials Science and Engineering of Powder Metallurgy, 2026, 31(5): 522-531.

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http://pmbjb.csu.edu.cn/EN/10.19976/j.cnki.43-1448/TF.2026046 OR http://pmbjb.csu.edu.cn/EN/Y2026/V31/I5/522

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