【摘 要】
：
近年来,作为一类结构特殊的微纳米材料,具有独特内腔的多级结构金属氧化物空心微球越来越受到人们的关注[1].由于其具有比表面积大、密度低、活性位点多以及高的表面渗透性等优点,尤其是特殊的中空内腔结构可以容纳大量的客体分子或大尺寸的客体,能够产生一些奇特的基于微观包覆效应的性质,在锂离子电池材料,传感器及生物医学材料等方面具有重要的应用价值[2,3].
【机 构】
：
黑龙江大学化学化工与材料学院,功能无机材料教育部重点实验室,黑龙江,哈尔滨,150080
论文部分内容阅读
近年来,作为一类结构特殊的微纳米材料,具有独特内腔的多级结构金属氧化物空心微球越来越受到人们的关注[1].由于其具有比表面积大、密度低、活性位点多以及高的表面渗透性等优点,尤其是特殊的中空内腔结构可以容纳大量的客体分子或大尺寸的客体,能够产生一些奇特的基于微观包覆效应的性质,在锂离子电池材料,传感器及生物医学材料等方面具有重要的应用价值[2,3].
其他文献
配电网可基于分布式电源孤岛运行,恢复停电负荷供电,当孤岛划分后,各个孤岛内存在不同类型的分布式电源,合理的分布式电源黑启动的最优恢复次序有利于快速建立配网内的孤岛.本文通过分析DG特性和并网要求,基于AHP层次分析法优化决策孤岛内DG的最优黑启动方案,优化过程中充分考虑了影响DG最优恢复的多个因素,构建出时间准则、发电量准则、可靠性准则和经济性准则,对DG的黑启动顺序进行优化,确定各DG的最优启动
The ever-increasing market of portable electronics and electric vehicles requires lithium-ion batteries (LIBs) to provide higher energy density and safety,especially because of the recent accidents in
Lithium ion batteries (LIBs) are currently the powerful and promising devices for increasing diversity of portable electrical applications due to the high energy/power density,good safety,and environm
粘结剂是锂离子电池电极片中的非活性成分,是制备锂离子电池电极片必须使用的重要材料之一[1].在电极中,粘结剂是用来将电极活性物质粘附在集流体上的高分子化合物.它的主要作用是粘结和保持活性物质,增强电极活性材料与导电剂及活性材料与集流体之间的电子接触,更好的稳定极片的结构,因此选择一种合适的粘结剂非常重要[2].
Graphene,defined as a monolayer of sp2-hybridized carbon atoms arranged in a honeycomb lattice,has become one of the most exciting materials in recent years.[1,2] By virtue of its extraordinary physic
In recent years,more and more attention has been paid on Si material used as the anodes in lithium ion batteries (LIBs).[1,2] But,in spite of its highest theoretical specific capacity of 4200 mA h/g,t
SiOx is a strong alternative to Si as a high capacity anode material for Li-ion batteries.The SiOx is composed of embedded Si nano-crystallites in silicon suboxides matrix of various valence states.Si
锂离子电池(LIBs)是一种新型的储能和供电装置,广泛用于电子产品.但是,商品锂离子电池的石墨负极比容量低,难以满足电动汽车动力电池的需要.因此,研发兼具高能量密度和高功率性能的负极材料对于动力电池和电动汽车的发展非常重要[1].
A composite (VOx/C) was synthesized firstly using electrospinning method.The structure and morphology of composite (VOx/C) was characterized by XRD,XPS,SEM,TEM techniques.The results showed that the V
The synthesis and transport properties of the Li6La3BiSnO12 ceramics by solid state reaction are reported.The temperature to synthesize the Li6La3BiSnO12 is 785 ℃ in air for 36 h.The refined lattice c