项目名称: 氧化物/碳复合电极材料及其容量型超级电容器的研究
项目编号: No.U1401246
项目类型: 联合基金项目
立项/批准年度: 2015
项目学科: 管理科学
项目作者: 张海燕
作者单位: 广东工业大学
项目金额: 241万元
中文摘要: 为了提高容量型超级电容器的能量密度,本项目结合碳材料与金属氧化物各自的优势,通过科学的设计合成稳定的、高活性的电极材料,构建具有高比容量的金属氧化物与高比表面积高导电性碳材料复合的超级电容器用新型电极材料,服务于兼具高功率密度和高能量密度的超级电容器的制备;着重研究能量密度和功率密度皆优的新型氧化物/碳复合电极材料及其超级电容器的制备方法、赝电容电极反应过程和基于氧化物/碳复合电极材料超级电容器的自放电过程等科学问题,建立普适的制备二维和三维石墨烯或低温石墨化碳材料、以及金属氧化物在二维和三维石墨烯上定域生长的方法,完善对金属氧化物/碳复合材料的组成、结构、粒径分布的调控方法,揭示容量型超级电容器赝电容电极过程的本质,实现对高性能新型氧化物/碳复合电极材料及其容量型超级电容器制备过程的有效控制,为推动超级电容器在电动车和新能源电站储能等领域的应用奠定坚实的理论基础。
中文关键词: 超级电容器;氧化物/碳复合材料;协同作用;高能量密度;电极反应过程
英文摘要: In order to improve the energy density of supercapacitor, we will combine the advantages of carbon materials(high specific surface area and high conductivity) and metal oxides (high theoretical specific capacity ), to design and synthesize new kinds of stable and highly active electrode materials for the supercapacitors with both high power density and high energy density in this project. Scientific problems such as the preparation method of novel oxides/carbon composite electrodes, the reaction process of pseudocapacitance and self discharge process of supercapacitor based on metal oxides/carbon electrode composites will be thoroughly investigated. We will establish effective methods to prepare two/three-dimensional graphene or graphite carbon material in low-temperature and localized growth of metal oxide on two/three-dimensional graphene. The methods to control the composition, structure, size distribution of metal oxide/carbon composite material will be optimized. By revealing the essence of pseudocapacitance electrode process, the effective controllable preparation methods for novel oxide/carbon electrode composites of high performance and the corresponding capacity-type supercapacitors will be reached, laying a theoretical foundation for the application of supercapacitors in the field of electric vehicle and new energy storage power station.
英文关键词: NULL