镁锰电池电压滞后机理及调控研究

项目名称： 镁锰电池电压滞后机理及调控研究

项目编号： No.21273292

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 数理科学和化学

项目作者： 陈昌国

作者单位： 重庆大学

项目金额： 81万元

中文摘要： 镁锰干电池在放电过程产生"电压滞后现象"导致其应用受限。本项目提出通过现场电化学椭圆法与红外光谱法（FT-IR）原位测量镁电极-电解质界面膜层，采用X射线光电子能谱（XPS）、X射线衍射（XRD）、扫描电镜（SEM）等方法表征腐蚀钝化膜的成分与结构，探索镁电池电压滞后与腐蚀-缓蚀过程的关系；同时通过电解液和负极材料组成的调节并结合脉冲放电技术，使电极材料的表面膜处于钝化又能放电的状态，进而实现电压滞后可调可控。镁电池电压滞后机理与镁电极腐蚀等问题的基础性研究结果对镁电池的发展与应用意义重大。

中文关键词： 镁锰电池；电压滞后；复合电解液；电流脉冲；

英文摘要： Voltage delay phenomenon appears in the discharge process of Magnesium- Manganese dioxide dry cell, which limits its application. In situ measurement approaches in the programe such as Ellipsometric and Fourier tansform infrared spectroscopy(FT-IR) shall be developed to test the interface film of magnesium electrode and electrolyte. The component and structure of the corrosion passivation film shall be characterized by some related means such as X-ray photoelectron spectroscopy(XPS),X-ray diffraction(XRD) and scanning electron microscopy(SEM). The relation between corrosion, anticorrosion and voltage delay will be measured and analyzed. Voltage delay control will come true when the cathode material suface film could be kept to be the state of the passivation and discharge by adjusting component of electrolyte solution and magnesium-alloy material,combining pulse discharge technique. These results including voltage delay mechanism and corrosion of magnesium electrode are significant for the development and application of magnesium primary batteries.

英文关键词： Magnesium-manganese battery；Voltage delay；Composite electrolyte；Current pulse；