钠、锂锰氧及其复合材料的设计、合成与钠电池性能研究

项目名称： 钠、锂锰氧及其复合材料的设计、合成与钠电池性能研究

项目编号： No.21501108

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 数理科学和化学

项目作者： 于洋

作者单位： 曲阜师范大学

项目金额： 20万元

中文摘要： 钠电池成本低廉，具有相对稳定的电化学特性和较高的，是新一代绿色能源。目前，钠电池研究相对较少，开发钠电池电极材料并匹配正负极等是目前急需解决的问题。在前期控制合成过渡金属氧化物和碳复合电极材料的基础上，本申请旨在采用溶剂热、固相和原位掺杂等方法，设计合成微纳结构复合钠、锂锰氧电极材料，并研究材料在钠电池中的电化学行为。以溶剂热、溶胶凝胶法控制合成锰基前驱体，原位掺杂钠、锂等可控合成微纳结构钠、锂锰氧化物；引入其他金属离子，间接调节钠锰氧材料中钠锰比例，提高材料的能量密度；向正负极材料中化学掺杂引入碳材料，以提高正负极匹配程度。钠、锂锰氧电极材料兼具储钠和储锂性能，研究并对比材料在钠电池和锂电池中的电化学行为，筛选电化学性能优良的电池体系，结合并借鉴水相铅酸电池和有机相锂电池的生产技术路线，与电源厂合作开发新材料组装的钠电池体系。

中文关键词： 钠锰氧材料；微纳结构；钠离子电池；复合材料；氧化锰

英文摘要： The low cost sodium battery is a new generation of green energy, which has relatively stable performance and high electrochemical properties. At present, the research about the sodium battery is relatively small, the development of sodium battery electrode materials and matching is currently is an urgent need to solve the problems. On the basis of the early research about the control synthesis of transition metal oxides and carbon composite materials, this project is aimed to design and synthesize sodium/lithium manganese with micro-nano structure by solvothermal synthesis, solid phase synthesis and in situ doping routes, and research the electrochemical behavior. Solvothermal and sol-gel methods will be established to obtain the manganese base precursors, and in situ doping routes can control the amount of sodium and lithium. Introduction other metal ions, can indirect regulate the proportion of sodium and manganese in materials, which increase the energy density of the material. In order to improve the matching degree, carbon materials will be introduced to the electrode materials by chemical doping. Sodium/lithium manganese materials can storage sodium and lithium, research and contrast the electrochemical behavior of sodium battery and lithium battery, choose the excellent battery system, combination the production technology of lead-acid batteries and lithium-ion batteries, cooperation with the battery makers and achieve the whole battery which assembled by the new materials.

英文关键词： sodium manganese oxygen material;micro-nano structure;sodium-ion battery;composite materials;manganese oxide