To　study　the　matching　relationship　between　the　matrix　and　carbonate　electrolyte　of　MCFC,　and　evaluation　method　for　the　relationship,　γ-LiAlO2matrix　with　solid　loading　of　25%-40%　slurry　and　electrolyte　carbonate　with　solid　content　of　35%　and　45%　were　prepared　by　tape　casting　method.　Single　cells　were　assembled　with　different　solid　loading　matrix　and　carbonate　sheets.　Cell　open　circuit　voltage　was　monitored　during　the　sintering　process.　The　experiments　results　show　that　the　cell　assembled　by　40%　matrix　and　45%　solid　loading　carbonate　has　a　good　performance.　It　is　concluded　that　the　cell　performance　was　optimal　when　the　solid　content　weight　ratio　of　carbonate　and　matrix　reached　1.16.　Additionally,　the　cell　sintering　process　was　associated　with　the　changes　of　open　circuit　voltage　due　to　the　electric　double　layer　exist　on　the　surface　of　the　anode　and　cathode,　so　the　cell　performance　could　be　evaluated　by　analyzing　the　change　tendencies　of　open　circuit　voltage.　©　2012　Chinese　Society　for　Electrical　Engineering.