SAFETY HIGH CAPACITY LITHIUM SECONDARY BATTERY HAVING HIGHLY ELECTROCONDUCTIVE CODEPOSITES FILMS OF CARBON POWDER AND POLYMER AS AN ANODE AND CATHODE.

1. 炭粉共积物：以不同比表面积的几种炭黑粉为样品。将粉末悬浮在含有1M LiClO_4和0.1M吡咯单体的电解液中，将Pt网套在溶液中进行阳极氧化。我们成功地获得了导电的碳和聚吡咯的均相复合材料。与单独使用聚吡咯相比，发现其阴极特性增加了五倍以上（发表于DENKIKAGAKU， 1992年第11期）。提交给电源杂志)。粘结剂的评价：对聚乙烯、聚四氟乙烯、聚苯乙烯等作为锂阳极碳活性材料的粘结剂进行了评价。将这些聚合物与碳粉加热捏合制成薄片电极，用于测试阳极特性。2 .开发了一种新的有效的扫描电镜评价方法（发表于第35届国际电源研讨会，出版于1992年第10期）。活性炭纤维电极：在含有吡咯单体的电解液中阳极氧化，在具有很大表面积的活性炭纤维表面涂覆聚吡咯膜。使用这种共沉积电极材料，我们已经成功地将阴极容量提高到220mAh/g，这个值在我们的实验室之外从未达到过。（发表于第一届西太平洋电化学会议和第33届电池研讨会）。液体在微细管内的凝固点和熔点下降：我们发现了液体在微细管内的熔点和凝固点下降和分离的新现象。根据相成核理论（在第12届IUPAC国际会议和第1届西太平洋电化学会议上发表）对这些异常现象进行了解释。

1. Carbon Powder Codeposites: Several kinds of carbon black powder having different specific surface area were taken as samples. The powder was suspended in the electrolyte containing 1M LiClO_4 and 0.1M pyrrole monomer, the Pt mesh set in the solution being anodized. We have succeeded to obtain a conductive homogeneous codeposite of the carbon and polypyrrole. The cathodic characteristics was found increased over five times as compared to those of polypyrrole alone (Published in DENKIKAGAKU,No.11,1992. Submitted to The Journal of Power Sources).2. Evaluation of the Binder: Polyethylene, Teflon, polystyrene etc. were evaluated as binders of carbon active materials for Li anode. These polymers were kneaded with carbon powder with heat to make sheet electrode which was offered to test the anode characteristics. A new effective evaluation method on SEM was developed(Presented at the 35th International Power Sources Symposium, Published in DENKIKAGAKU No.10,1992).3. Active Carbon Fiber Electrode: Active carbon fiber having very large surface area was coated with polypyrrole film by anodizing it in the electrolyte containing pyrrole monomer. With this codeposited electrode material we have succeeded to increase the cathode capacity up to 220mAh/g whose value has never been attained outside of our laboratory. (Presented at the 1st West Pacific Meeting of Electrochemistry, and at the 33rd Battery Symposium).4. Depression of Freezing and Melting Point of Liquid in Microcapillary: We have found a new phenomena of the depression and separation of the melting and the freezing points of liquid when it is held in microcapillary. The unusual phenomena were elucidated on the basis of the phase nucleation theory(Presented at the 12th IUPAC International Conference and the 1st West Pacific Meeting of Electrochemistry).