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A Study on Secondary Lithium Batteries Using Electropolymerized Conductive Polymers

电聚合导电聚合物二次锂电池的研究

基本信息

批准号：
01550634
负责人：
OSAKA Tetsuya
金额：
$ 1.47万
依托单位：
Waseda University
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1989
资助国家：
日本
起止时间：
1989 至 1990
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-01550634/
关键词：
Conductive Polymer Electropolymerization Lithium Battery Compact Battery Polymer Battery

项目摘要

Electropolymerized conductive polymers were investigated for the purpose of applying to the active cathode materials of secondary lithium batteries. Among these polymers, we investigated polyaniline (PAn), polypyrrole (PPy) and polyazulene (PAz), and moreover their copolymers or composite polymers. An electroactive PAn is successfully obtained by electropolymerization from nonaqueous solution of propylene carbonate (PC) containing organic acid and LiClO_4. The most important factor to form electroactive PAn film is the existance of proton from an organic acid. Some other factors of polymerization solution, dielectric constant, viscosity and donor number, were also varied. The correlation between the battery performance using PAn cathode and the electrochemical properties of PAn film is obtained. Further, electrochemical coーpolymerization of pyrrole and azulene is well defined and fairly stoichiometric in PC solution. The battery performance is also investigated. PPy/PAn dual-layer, which has the merits or both films, is tried for the cathode materials. In this case, the PPy underlayer properties strongly affect the battery performance of Li/(PPy/PAn) battery. Finally, the Li ion transported PPy film doped with polymer anion is formed and the possibility of the application if the film th higher energy battery is shown.

为了将电聚合导电聚合物应用于二次锂电池的活性正极材料，对其进行了研究。在这些聚合物中，我们研究了聚苯胺（PAn）、聚吡咯（PPy）和聚氮烯（PAz）以及它们的共聚物或复合聚合物。以含有机酸和LiClO_4的碳酸丙烯（PC）为原料，采用电聚合法制备了电活性PAn。形成电活性聚丙烯腈薄膜的最重要因素是有机酸中质子的存在。聚合溶液的介电常数、黏度和给体数等因素也发生了变化。得到了聚丙烯腈阴极电池性能与聚丙烯腈薄膜电化学性能之间的关系。此外，吡咯和唑烯的电化学共聚反应在PC溶液中具有良好的化学计量性。并对电池性能进行了研究。在正极材料方面，尝试了具有两种薄膜优点的聚吡咯/聚吡咯双层材料。在这种情况下，聚吡啶下层的性质强烈影响锂/（聚吡啶/PAn）电池的电池性能。最后，形成了掺杂聚合物阴离子的Li离子输运PPy薄膜，并展示了该薄膜在高能量电池中的应用可能性。