MANUFACTURING METHOD OF SOLID ELECTROLYTE FILM

摘要

PROBLEM TO BE SOLVED: To improve productivity of a solid electrolyte film by efficiently and effectively performing drying.

SOLUTION: A flow-cast film 61 is formed by flow-casting a dope 24 on a drum 96. The flow-cast film 61 is cooled by the drum 96 to gel and solidify. Solidified flow-cast film 61 is exfoliated from the drum 96 as a wet precursor film 67. Then the wet precursor film 67 is dried by a first tender 82 and is sent to a liquid contactor 83. At the liquid contactor 83, the wet precursor film 67 enters a contact liquid 106 and a solvent contained in the wet precursor film 67 is replaced by the contact liquid 106. The wet precursor film 67 is dried in a drying process to obtain the solid electrolyte film 78.

COPYRIGHT: (C)2009,JPO&INPIT