MXene/聚两性离子水凝胶在锌空气电池中的应用  

Application of MXene/polyzwitterionic hydrogel in zinc-air battery

作　　者：张思瑶 孙元娜 杜莹 王东宇 汪俊 杨佳航 吕桂鑫 秦佳欣 ZHANG Siyao;SUN Yuanna;DU Ying;WANG Dongyu;WANG Jun;YANG Jiahang;LYU Guixin;QIN Jiaxin(School of Materials Science and Engineering,Xi′an Key Laboratory of Textile Composite Materials,Xi′an Polytechnic University,Xi′an 710048,China)

机构地区：[1]西安工程大学材料工程学院,西安市纺织复合材料重点实验室,陕西西安710048

出　　处：《印染》2024年第10期19-23,共5页China Dyeing and Finishing

基　　金：大学生创新创业训练计划项目(S202310709023);陕西省高校科协青年人才托举计划项目(20210421);西安市纺织复合材料重点实验室科技指导性项目(xafzfc-zd05)。

摘　　要：水凝胶固态电解质有效避免了液态电解质易泄漏和难以封装的问题,使柔性可穿戴的便捷式供电设备成为可能。将MXene纳米片嵌入由丙烯酰氧乙基三甲基氯化铵(DMAEA-Q)和苯乙烯磺酸钠(NaSS)组成的聚两性离子水凝胶基质中,制备MXene/聚两性离子水凝胶。MXene作为物理交联剂和导电填料可以提高水凝胶的导电性,将其组装锌空气电池,电池保持较好的功率密度(50 mW/cm^(2))、比容量(753.1 mAh/g)和250次以上的长时间充放电循环寿命。The hydrogel solid-state electrolyte effectively avoids the problems of easy leakage and difficult en⁃capsulation of liquid electrolyte,making it possible to use flexible and wearable portable power supply devices.MXene/polyzwitterionic hydrogel is prepared by embedding MXene nanosheets into a polyzwitterionic hydrogel matrix consisting of acryloyloxyethyltrimethylammonium chloride(DMAEA-Q)and sodium styrenesulfonate(NaSS).MXene can be used as a physical crosslinker and conductive filler to improve the conductivity of hydro⁃gels,and the results show that the battery maintains a good power density(50 mW/cm^(2)),specific capacity(753.1 mAh/g)and a long charge-discharge cycle life of more than 250 cycles.

关 键 词：MXene 两性离子 水凝胶 锌空气电池 

分 类 号：TQ427.26[化学工程] TM911.41[电气工程—电力电子与电力传动]