Release film, laminate and method for manufacturing same, and method for manufacturing fuel cel

• Main Authors: OKANO YOSHIMICHI, YAEGASHI TAKAYUKI, ONOMICHI HIROSHI, OKADA KAZUYUKI, SUMITA KATSUHIKO, NISHIMURA KANAE, SUZUKI KEN
• Format: Patent
• Language: Chinese; English
• Published: 29.06.2016
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOSITIONS BASED THEREON; ELECTRICITY; GENERAL PROCESSES OF COMPOUNDING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING-UP

A release layer of a release film for manufacturing a membrane electrode assembly of a solid polymer fuel cell is formed from a cyclic olefin resin containing an olefin unit having a C3-10 alkyl group in a side chain. The glass transition temperature of the release layer may be approximately 210-350 DEG C. The dynamic storage modulus E' of the release layer may have a transition point in the range from -50 to 100 DEG C. An ion exchange layer containing an ion exchange resin may be laminated on the release layer of the release film by a roll-to-roll method to produce a laminate. The release film may be released from the laminate to produce a membrane electrode assembly. The release film makes it possible to improve the productivity of a membrane electrode assembly (electrolyte membrane and/or electrode film) of a solid polymer fuel cell. 由含有在侧链具有碳原子数为3～10的烷基的烯烃单元的环状烯烃类树脂，形成用于制造固体高分子型燃料电池的膜电极接合体的脱模膜的脱模层。所述脱模层的玻璃化转变温度可以是210～350℃左右。所述脱模层的动态储能弹性模量E'可以在-50～100℃的范围内具有转变点。可以在该脱模膜的脱模层上，以卷对卷的方式叠层含有离子交换树脂的离子交换层，从而制造叠层体。