Research on high functional nano-structure in lithium ionic conductor

锂离子导体高功能纳米结构研究

• 批准号: 15510104
• 负责人: INOUE Naoki
• 金额: $ 1.34万
• 依托单位: Ehime University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2005
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15510104/
• 关键词: lithium ionic conductor; fine particle dispersion; electric conduction; Rietveld analysis; NMR; cluster model; electronic calculation; 球共振法; 電子状態

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.

我们使用精细颗粒混合物和B点取代研究了锂离子导体中的高功能性纳米结构。所获得的结果总结了以下。1。固定粒子（TIO_2粒径0.05μm）混合物，我们观察到锂离子导体中10-40％TIO_2浓度的电导率增强了约30％的电导率。 SEM的观察结果表明，包括大约10μm的颗粒所包含的细颗粒。这是由于高烧结温度而产生的。我们需要进一步的研究以提高电导率的增强。2.b位点替代效应。我们观察到离子导体的B位替代效应以改善离子传导。我们使用al，p，w，zr，mg，mg物种b-site.AL和p替代，可提高电导率，但W，ZR和MG。需要进一步的研究来了解该机制。3。我们通过DV-Xα方法研究了电子结构。在电子结构中获得的结果用于解释NMR的 ^7li化学位移。那是成功的。

项目成果

Inoic conduction and chemical bonds of Li ion in La_<4/3-y>Li_<3y>Ti_2O_6

La_<4/3-y>Li_<3y>Ti_2O_6中Li离子的离子传导与化学键

• 发表时间: 2005
• 期刊: Ionics 11・1-2
• 作者: Takashi Ikegawa;Yukio Takahashi;Naoki Inoue
• 通讯作者: Naoki Inoue

Electronic structure and lithium ion migration of La_<4/3-y>Li_<3y>Ti_2O_6 using cluster model

基于团簇模型的La_<4/3-y>Li_<3y>Ti_2O_6的电子结构和锂离子迁移

• 发表时间: 2005
• 期刊: Solid State Ionics 176
• 作者: Toshihisa Ozawa;Nariaki Takahashi;Yukio Takahashi;Naoki Inoue
• 通讯作者: Naoki Inoue

Ionic conduction and ^<27>Al MAS/NMR of B-site Al ion substitution in La_<4/3-y>Li_<3y>Ti_2O_6

La_<4/3-y>Li_<3y>Ti_2O_6中B位Al离子取代的离子传导及^<27>Al MAS/NMR

• 发表时间: 2005
• 期刊: Solid State Ionics 176
• 作者: Nariaki Takahashi;Toshihisa Ozawa;Yukio Takahashi;Yanhui Zou
• 通讯作者: Yanhui Zou

Electronic structure and lithium ion migration of La_<4/3-y>Li_<3y>Ti_2O_6 using cluster model.

基于团簇模型的La_<4/3-y>Li_<3y>Ti_2O_6的电子结构和锂离子迁移。

• 发表时间: 2005
• 期刊: Solid State Ionics 176
• 作者: K.Katou;N.Makimoto;Y.Takahashi;Naoki Inoue
• 通讯作者: Naoki Inoue

Electronic Structure and Lithium Ion Migration of La_<4/3-y>Li_<3y>Ti_2O_6 sing Cluster Model

La_<4/3-y>Li_<3y>Ti_2O_6单团簇模型的电子结构和锂离子迁移

• 发表时间: 2005
• 期刊: Solid State Ionics (In press)
• 作者: 池川隆司;高橋幸雄;N.Inoue
• 通讯作者: N.Inoue