Research on high functional nano-structure in lithium ionic conductor

我们利用细颗粒混合物和b位取代研究了锂离子导体的高功能纳米结构。所得结果总结如下：1。细颗粒（TiO_2粒径为0.05μm）混合物在10 ~ 40% TiO_2浓度范围内，锂离子导体的电导率提高了30%左右。扫描电镜观察表明，所含的细颗粒转变为10μm左右的晶粒。这是由于烧结温度高造成的。我们需要进一步的研究来提高电导率。B位取代效应。我们观察到离子导体的b位取代效应，以改善离子传导。我们用Al， P， W, Zr， Mg代替b位。Al和P取代提高了电导率，而W、Zr和Mg取代提高了电导率。需要进一步的研究来了解其机理。我们用DV-X α法研究了其电子结构。利用电子结构得到的结果解释了核磁共振的^7Li化学位移。这是成功的。

We studied the high functional nano-structure in lithium ionic conductor using fine particle mixtures and B-site substitutions. The obtained results are summarized the followings.1.Fine particle (TiO_2 particle size 0.05μm) mixturesWe observed the conductivity enhancement of about 30% in the region of 10-40% TiO_2 concentration in lithium ionic conductor. The observation of SEM showed the fine particles included changed to the grain of about 10μm. This resulted from high sintered temperature. We need further research to improve the conductivity enhancement.2.B site substitution effect.We observed the B-site substitution effect of ionic conductor to improve the ionic conduction. We used Al, P, W, Zr, Mg species to substitute B-site. Al and P substitutions improved the conductivity, but W, Zr and Mg. Further researches are needed to understand the mechanism.3.We studied the electronic structure by DV-X α method. The result obtained in the electronic structure was applied to interpret the ^7Li chemical shift of NMR. That was successful.