实验技术与管理

针对锂离子电池负极材料的实际应用问题,设计了MnO₂/碳纳米管/石墨烯/泡沫镍复合材料的制备及储锂性能评价综合实验。实验先采用化学气相沉积法制备碳基底,再经水热反应沉积二氧化锰制备自组装电极;通过X射线衍射、扫描电镜、氮吸脱附法等技术和电化学手段对其结构、微观形貌、储锂性能进行表征和评价。该实验涉及纳米材料制备、微观结构表征、电池装配工艺、储能性能评价等多个环节,涵盖了电化学、固态物理学、材料学等多个学科领域,以热点应用问题为切入点,结合实际科研成果,能够多维度地提高学生的科研动手能力和解决实际问题的能力,激发学生的科研热情。

In view of practical application in lithium ion battery anode materials, a comprehensive experiment on the preparation and lithium storage properties evaluation of MnO₂/carbon nanotubes/graphene/nickel foam is designed. Firstly, carbon substrate is prepared by chemical vapor deposition, and then manganese dioxide is deposited by hydrothermal reaction to prepare self-assembled electrode. The structure, micro morphology and lithium storage properties are characterized and evaluated by X-ray diffraction, scanning electron microscopy,nitrogen adsorption desorption and electrochemical methods. The experiment involves multiple practical links,such as preparation of nanomaterials, microstructural characterization, battery assembly process, evaluation of energy storage performance, which covers electrochemistry, solid state physics, materials science and other disciplines, taking the hot application problems as the starting point, combined with the actual scientific research achievements, it can improve the students' practical ability of scientific research and the ability to solve practical problems in multiple dimensions, and stimulate their enthusiasm for scientific research.