公开(公告)号：EP0967672A4

公开(公告)日：2003-01-22

申请号：EP98917623

申请日：1998-04-22

申请人： JAPAN STORAGE BATTERY CO LTD ,  MITSUBISHI ELECTRIC CORP

发明人： ARIMA YOICHIRO ,  TSUKAMOTO HISASHI ,  AIHARA SHIGERU ,  TAKEMURA DAIGO ,  SHIODA HISASHI ,  URUSHIHATA HIROAKI ,  ARAKANE JUN ,  YOSHIOKA SHYOJI ,  KISE MAKIKO

IPC分类号： H01M2/16 ,  H01M4/04 ,  H01M10/04 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/36 ,  H01M10/52 ,  H01M4/02 ,  H01M6/00 ,  H01M10/00 ,  H01M10/40

CPC分类号： H01M4/0478 ,  H01M2/168 ,  H01M4/04 ,  H01M4/0404 ,  H01M4/043 ,  H01M4/0435 ,  H01M10/0436 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/52

摘要： A battery such as a lithium secondary battery having a structure permitting reduction in both weight and thickness, wherein a groove for drying the solvent used for manufacturing the battery is provided in an electrode, thereby improving the productivity of the battery. Specifically, a battery composed of a positive electrode, a negative electrode and an electrolyte holding layer, characterized in that a solvent evaporation groove (11c) is formed in at least one of the positive electrode and the negative electrode, for example, in the positive electrode (11).