To provide an electrochemical device wherein short-circuiting due to contact between collectors does not easily occur during the sealing process and the heat generating element is less affected by heat, and to provide a method for manufacturing the same.
The electrochemical device comprises a pair of plate-type collectors 20 and 21, a power generating element 10 sandwiched in between the collectors 20 and 21 so that a first electrode 12 contacts with the collector 20 and a second electrode 13 contacts with the collector 21, and frame-type sealing members 30 for hermetically sealing the power generating element 10 in between the collectors 20 and 21 by filling up the gaps around the peripheries of the collectors 20 and 21. The sealing members 30 each has a pair of thermoplastic polymer layer 31 and 35 for sandwiching liquid crystal polymer layers 33 and 33 in between. The thermoplastic polymer layers 31 are heat-sealed to the peripheries at the both ends of the collector 20, and the thermoplastic polymer layers 35 are heat-sealed to the peripheries at the both ends of the collector 21. The melting point of the thermoplastic polymer layers 31 and 35 is lower than that of the liquid crystal polymer layers 33.
COPYRIGHT: (C)2005,JPO&NCIPI
Suzuki Cho
Satoshi Maruyama
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