Design of new ion conductive polymer based on room-temperature molten salts and application to the ionics devices.

基于室温熔盐的新型离子导电聚合物的设计及其在离子器件中的应用

• 批准号: 11555250
• 负责人: OHNO Hiroyuki
• 金额: $ 7.3万
• 依托单位: Tokyo University of Agriculture and Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2001
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-11555250/
• 关键词: Room temperature molten salt; Ion conductive polymers; Zwitterion; Ionics devices; 高分子イオン伝導体; 芳香族へテロ環アミン; 固体電解質

In this project, quite a lot of new ionic liquids have been synthesized according to the new method called "Neutralization Method". A series of amines were neutralized with a series of acid. Equimolar mixture gave only salt without any by-product. Several tens of new ionic liquids were prepared and their basic characteristics were analyzed related to their structure. Functional improvement of the ionic liquids was also developed such as Zwitterionic liquid which possesses both cation and anion on one molecule, and showed no igration under potential gradient. These are expected as a new non-volatile electrochemical solvent. Further a series of excellent structure have been introduced into polymer structure. Polymerization of ionic liquids containing vinyl groups reduced the ionic conductivity considerably. This reduction was suppressed by the introduction of spacer group between polymerizable vinyl group and ionic liquid part. Excellent ion conductive polymers have been synthesized according to this. Some were applied as electrolytes for electrochemical devices such as lithium ion battery, capacitor, and so on. These showed excellent performance comparable to organic solvent electrolytes.

在这个项目中，我们用“中和法”合成了大量的新型离子液体。一系列的胺被一系列的酸中和。等摩尔混合物只产生盐，没有任何副产物。合成了数十种新型离子液体，并从结构上分析了它们的基本性质。还对离子液体的功能进行了改进，如两性离子液体在一个分子上同时具有阳离子和阴离子，并且在电位梯度下不发生迁移。它们有望成为一种新型的非挥发性电化学溶剂。此外，还将一系列优良的结构引入到聚合物结构中。含有乙烯基团的离子液体的聚合大大降低了离子电导率。在可聚合的乙烯基团和离子液体部分之间引入间隔基，抑制了这种还原。以此为基础合成了性能优良的离子导电聚合物。一些被用作锂离子电池、电容器等电化学设备的电解液。这些都表现出了与有机溶剂电解液相当的优异性能。

项目成果

M. Hirao, K. I-Akha, H. Ohio: "Polymerization of molten salt monomers having phenylimidazolium group"Polym. Adv. Technol. 11. 534-538 (2000)

M. Hirao，K. I-Akha，H. Ohio：“具有苯基咪唑鎓基团的熔盐单体的聚合”Polym。

K.Kato,K.Ito,and H.Ohno,: "Preparation and ionic conductivity of PEO oligomers having thiolate groups on the chain ends"J.Solid State Electrochemistry,. 4. 141-145 (2000)

K.Kato，K.Ito，和H.Ohno，：“链末端具有硫醇盐基团的PEO低聚物的制备和离子电导率”J.Solid State Electrochemistry，。

M.Hirao,K.I-Akita,and H.Ohno,: "Polymerization of molten salt monomers having phenylimidazolium group"Polym.Adv.Technol.,. in press.

M.Hirao、K.I-Akita 和 H.Ohno，：“具有苯基咪唑鎓基团的熔盐单体的聚合”Polym.Adv.Technol.，。

Y.Tominaga, H.Ohno: "High ionic conductivity of PEO/sulfonamide salt hybrids"Solid State Ionics.. 124. 323-329 (1999)

Y.Tominaga、H.Ohno：“PEO/磺酰胺盐杂化物的高离子电导率”Solid State Ionics.. 124. 323-329 (1999)

K.Kato, K.Ito, H.Ohno: "Preparation and ionic conductivity of PEO oligomers having thiolate groups on the chain ends"J. Solid State Electrochemistry. 4. 141-145 (2000)

K.Kato、K.Ito、H.Ohno：“链端具有硫醇盐基团的 PEO 低聚物的制备和离子电导率”J。