| 摘要 |
PROBLEM TO BE SOLVED: To provide an electrochemical device which has a high steam barrier property and gas barrier property and hardly has short-circuits between current collectors at the time of sealing and has no adverse thermal effect on a power generation element, and also to provide its manufacturing method. SOLUTION: The electrochemical device comprises a pair of plate-like current collectors 20 and 21, the power generation element 10 which is interposed between the current collectors 20 and 21 so that a first electrode 12 may be in contact with the current collector 20 and a second electrode 13 may be in contact with the other current collector 21, and a sealing member 30 which fills up a space between the peripheral portion 20a of the current collector 20 and the peripheral portion 21a of the current collector 21 to encapsulate the power generation element 10. The sealing member 30 is composed of a thermoplastic high molecular inner portion 32 which is thermally fused to the peripheral portions 20a and 21a of the current collectors 20 and 21 and surrounds the power generation element 10, and a liquid-crystal high molecular outer portion 34 which is thermally fused to the peripheral portions 20a and 21a of the current collectors 20 and 21 and surrounds the inner portion 32 from the outside and has a higher melting point than that of the inner portion 32. COPYRIGHT: (C)2005,JPO&NCIPI |
