HIGH TEMPERATURE RESISTANT ADHESIVE FOR CERAMIC DIAPHRAGM OF LITHIUM BATTERY AND PREPARATION METHOD THEREFOR

The present disclosure relates to the field of lithium-ion batteries, and specifically relates to a high temperature resistant adhesive for a ceramic diaphragm of a lithium battery and to a preparation method therefor. The present disclosure further relates to a lithium battery diaphragm comprising...

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Bibliographische Detailangaben
Hauptverfasser:	LIAO, Chenbo, SUN, Minqiang, CHEN, Yongle, ZHUANG, Zhi, WANG, Zhongqi, CHENG, Yue, YE, Chengliang, SHAN, Huajing, HU, Jun
Format:	Patent
Sprache:	chi ; eng ; fre
Schlagworte:	ADHESIVES BASIC ELECTRIC ELEMENTS CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON CORRECTING FLUIDS DYES ELECTRICITY FILLING PASTES INKS MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	The present disclosure relates to the field of lithium-ion batteries, and specifically relates to a high temperature resistant adhesive for a ceramic diaphragm of a lithium battery and to a preparation method therefor. The present disclosure further relates to a lithium battery diaphragm comprising the high temperature resistant adhesive. The adhesive is a latex acrylic polymer resin having an interpenetrating network structure, and the adhesive polymer has a glass transition temperature greater than 160°C; the ratio of the thermal shrinkage rate of the lithium battery diaphragm prepared from the high temperature resistant adhesive at 150°C, relative to the heat shrinkage measured at 120°C, is less than 2; there is a relatively small change in the thermal shrinkage rate of the diaphragm even with a steep increase in temperature, thus satisfying requirements for manufacturing a ceramic diaphragm having high safety performance; moreover, the present adhesive is a water-based adhesive, does not contain an organi