锂离子/聚合物二次电池及其界面研究的成就

Achievements in Research on Lithium Ion-Polymer Secondary Batteries and Their Interfaces

1994年底至1995年春,日、美先后推向市场的薄膜型锂离子/聚合物二次电池,能量密度高达250Wh/L,充放电循环寿命大于1500次。综述了该电池研究开发中的关键之一——两相界面层纳米相分离或纳米孔隙的形成与控制,提高离子容量和传递转换速率等所取得的成就,并指出了喜人的前景。

The film-type lithium ion-polymer secondary batteries, which achieved a lifetime of 1500 cycles of charge-discharg with a sustained energy density of 250 Wh/L,were sold in the markets in Japan and America from the end of 1994 to Spring of 1995. In this paper, the achievements in forming and corrtrolling of nanophase or nanopore at interface to improve the ion capacity and transmissive ra-tio,which was one of the keys to the research and development of the batteries,were reviewed. At last,the good prospects were showed.