材料科学
电解质
支化(高分子化学)
化学工程
离子
离子液体
聚合物
离子电导率
乙二醇
电化学
电介质
纳米技术
复合材料
电极
光电子学
有机化学
物理化学
化学
工程类
催化作用
作者
Dawoon Lee,MinHo Yang,U Hyeok Choi,Jaekyun Kim
出处
期刊:Small
[Wiley]
日期:2024-02-02
标识
DOI:10.1002/smll.202308821
摘要
Abstract The branched network‐driven ion solvating quasi‐solid polymer electrolytes (QSPEs) are prepared via one‐step photochemical reaction. A poly(ethylene glycol diacrylate) (PEGDA) is combined with an ion‐conducting solvate ionic liquid (SIL), where tetraglyme (TEGDME), which acts like interneuron in the human brain and creates branching network points, is mixed with EMIM‐NTf 2 and Li‐NTf 2 . The QSPE exhibits a unique gyrified morphology, inspired by the cortical surface of human brain, and features well‐refined nano‐scale ion channels. This human‐mimicking method offers excellent ion transport capabilities through a synaptic branched network with high ionic conductivity (σ DC ≈ 1.8 mS cm −1 at 298 K), high dielectric constant (ε s ≈ 125 at 298 K), and strong ion solvation ability, in addition to superior mechanical flexibility. Furthermore, the interdigitated microsupercapacitors (MSCs) based on the QSPE present excellent electrochemical performance of high energy ( E = 5.37 µWh cm −2 ) and power density ( P = 2.2 mW cm −2 ), long‐term cycle stability (≈94% retention after 48 000 cycles), and mechanical stability (>94% retention after continuous bending and compressing deformation). Moreover, these MSC devices have flame‐retarding properties and operate effectively in air and water across a wide temperature range (275 to 370 K), offering a promising foundation for high‐performance, stable next‐generation all‐solid‐state energy storage devices.
科研通智能强力驱动
Strongly Powered by AbleSci AI