超薄碳纤维复合材料结构电池制备及其性能评价  

Preparation and performance evaluation of ultra-thin carbon fiber composite structure battery

作　　者：杨向涛 王朝阳 张金纳 朱世杰 郭海伟 吴海宏[1,3] 仝立勇 YANG Xiang-tao;WANG Chao-yang;ZHANG Jin-na;ZHU Shi-jie;GUO Hai-wei;WU Hai-hong;TONG Li-yong(Carbon Fiber Composites International Joint Research Lab in Henan,Henan University of Technology,Zhengzhou 450001,China;School of Aerospace,Mechanical&Mechatronic Engineer,The University of Sydney,Sydney 2006,Australia;Zhengzhou Fangstring Advanced Material Science and Technology Company Limited,Zhengzhou 450001,China)

机构地区：[1]河南工业大学碳纤维复合材料国际合作实验室,郑州450001 [2]悉尼大学航空机电学院,悉尼2006 [3]郑州仿弦新材料科技有限公司,郑州450001

出　　处：《复合材料科学与工程》2021年第7期39-47,共9页Composites Science and Engineering

基　　金：国家自然科学基金委-河南省联合基金重点项目(U1604253);国家重点研发计划(2016YFB0101602)。

摘　　要：智能系统、无人驾驶等现代交通的不断发展,对传统电池的轻量化、安全性、有效负载和循环寿命都提出了新的挑战。本文利用活性炭、介孔碳以及将两者按50%比例混合制备了三种不同的碳材料电极片,对其进行了微观形貌和电化学性能对比分析。选取性能最优的电极片与超薄碳纤维预浸料集成制备了结构电池,并采用万能试验机对其进行了拉伸、压缩、弯曲测试。实验结果表明:活性炭和介孔碳混杂制成的电极片具有更有利于离子迁移的表面形貌,用其制成的结构电池具有良好的充放电特性。在受载条件下,拉伸测试单位质量载荷小于240 kN/kg时,比电容和能量密度数据波动在15%以下;压缩测试单位质量载荷达到58 kN/kg时,比电容和能量密度提高了39.5%;弯曲测试单位质量载荷为16 kN/kg时,比电容和能量密度提高了12%。超薄碳纤维复合材料结构电池作为一种储能复合材料,在提高结构电池性能和系统轻量化方面具有巨大潜力。With the continuous development of intelligent systems,driverless vehicles and other modern transportation,the lightweight,safety,payload and cycle life of traditional batteries have been faced with new challenges.In this paper,three different electrodes of carbon material were prepared by mixing activated carbon,mesoporous carbon and hybrid activated and mesoporous carbons.The microstructures and electrochemical properties of all three electrodes were compared and analyzed.A structural battery was fabricated by selecting the electrode presenting the best electrochemical performance integrated with ultra-thin carbon fiber reinforced polymer composite(UTCFRP).The mechanical properties were tested by a universal testing machine.The experimental results show that the electrode made of hybrid activated carbon and mesoporous carbon has a surface morphology that is more suitable for ions to migrate.The structural battery presents good charge and discharge characteristics.Under load conditions,the fluctuate of its specific capacitance and energy density is below 15%as the unit mass load of tensile test is less than 240 kN/kg;the specific capacitance and energy density increase by 39.5%as the unit mass load of compression test reaches 58 kN/kg,and the retention rate of the specific capacitance and energy density is 89%as the unit mass load of bending test reaches 41 kN/kg.As one kind of energy storage composite material,the structur-al battery with UTCFRP has great potential in improving the battery performance and realizing miniaturization and lightweight.

关 键 词：结构电池 结构功能一体化 超薄碳纤维复合材料 服役性能测试 

分 类 号：TB332[一般工业技术—材料科学与工程]