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Design of All Solid State Rechargeable Lithium Batteries Using Self Assembled Polymeric Electrolyte

采用自组装聚合物电解质的全固态可充电锂电池的设计

基本信息

批准号：
17550168
负责人：
YOSHIMOTO Nobuko
金额：
$ 2.24万
依托单位：
Yamaguchi University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2005
资助国家：
日本
起止时间：
2005 至 2006
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-17550168/
关键词：
Lithium battery Dry polymer electrolyte Self assembling polymer Polymer matrix Mechanical strength Lithium ion mobility Ionic conductivity Photo polymerization リチウムイオン伝導性熱重合

项目摘要

A novel solid electrolyte possessing high ionic conductivity at ambient temperature and ordinary pressure has been proposed by using commercially available reagents for all solid-state rechargeable lithium batteries. The results are summarized as follows.1. A basic concept and design of the device using a novel polymer electrolyteA novel all solid polymer electrolyte for lithium ion battery has been proposed, and the requirements for the materials constituting the electrolyte have been discussed in detail.2. Optimization and evaluation of basic properties of polymer electrolyteThe polymer electrolyte materials having both superior mechanical strength and high ionic conductivity have been designed and their preparation procedure was investigated. The ionic conductivity and its temperature dependence of the polymer electrolyte have been examined to demonstrate that the proposed polymer electrolyte has good compatibility of high mechanical strength and high ionic conductivity by comparing the polymer electrolyte or polymeric gel electrolyte previously proposed by our group.3. Analysis of reaction process of lithium ion in the polymer electrolyteThe electrode reaction of lithium ion in the obtained polymer electrolyte has been investigated.. It was confirmed that deposition/dissolution of lithium was possible for the cell using present polymer electrolyte, in optimizing the electrode/electrolyte interface.

利用商用试剂研制了一种在常温常压下具有高离子导电性的全固态锂电池固体电解液。研究结果总结如下：1.研究成果。提出了一种用于锂离子电池的新型全固态聚合物电解液，并详细讨论了该电解液对材料的要求。聚合物电解液基本性能的优化与评价设计了具有优异机械强度和高离子导电性的聚合物电解液材料，并对其制备工艺进行了研究。通过与本课题组以前提出的聚合物电解质和聚合物凝胶电解质的比较，考察了聚合物电解质的离子电导率及其温度依赖性，证明了所提出的聚合物电解质具有高机械强度和高离子电导率的良好兼容性。锂离子在聚合物电解液中的反应过程分析研究了锂离子在聚合物电解液中的电极反应。在优化电极/电解液界面的过程中，证实了使用目前的聚合物电解液的电池可以沉积/溶解锂。