创新电池隔膜涂覆技术研究进展PDF.pdf

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1、条缝挤压涂在LIB隔膜改性涂层涂布应用研究进展AdvanceinResearchonApplicationofslotcoatinginLIBseparatormodifylayercoating博源涂布科技有限公司赵伯元目录content1、薄层涂布方法的比较comparethethinnerlayercoatingmethods2、凹版涂布Gravurerollercoating3、条逢挤压涂布Slotcoating4.挤压嘴内部腔体流动的分析和设flowanalysisanddesignofinternalcoatingdie

2、cavities5.涂布嘴的结构对涂布均匀度的影响Effectofthecoatingdiestructureonthecoatinguniformity6、条逢挤压涂布在隔膜涂布中的应用ApplicationofslotcoatinginLIBseparatorcoating1.薄层涂布thinnerlayercoating比较和选择Comparingandchoosing1.1薄层涂布方法thinnercoatingmathod1.2薄层涂布方法的总结summary0fsomecoatingmathods涂布方法粘度湿厚度涂层误

3、差比较性能processPa·sμmCoatingComparecapabilityaccuracy绕线刮棒涂布0.02-15-5010%,nonuniformitywirewoundrod逆转辊涂布0.01-505-4005%,较均匀性ReverserollLessuniformity凹版辊涂布0.001-51-252%,凹版辊磨损GravureWearofthegravureroller坡流挤压涂布0.005-0.515-2502%,较厚最小湿厚度厚slideThickerwetthickness条逢挤压涂布0.005-202-

4、2502%,涂层薄，精度高slotThinnerwetthickness1.3坡流挤压涂布特点featureofslidecoating•在胶片涂布中广泛应用Widelyuseinphotofilmcoating•最小湿涂布量：50ml/m2minimumcoatingvolume:50ml/m2涂布速度＞10m/minCoatingspeed＞10m/min•涂布精度；2%•Accuracy：2%1.4条逢挤压涂布特点featureofslotcoating•适用流体粘度范围广Applyinwideviscosityrange•涂

5、布薄层thinnercoatinglayer•涂布精度高Highercoatingaccuracy•涂布速度高•Highercoatingspeed2.凹版涂布Gravurecoating2.1凹版辊涂布过程gravurecoatingprocess经过定厚刮刀刮除表面液体，在凹版辊上凹槽内的液体，被转移到在包胶背辊上运行的片幅上Thegravurerollhasindentationthatholdtheliquidafterthesurfaceiswipedofbyadoctorblade,theliquidisthentran

6、sferredtothewebmovingonarubber-coveredbackuproll.2.2凹版辊涂布厚度的控制adjustmentofthecoatingthicknessofgravurecoating•凹版涂布厚度由凹槽的容积控制Thecoatingthicknesscontrolledbythecellvolume•少量改变涂层厚度，就需要更换选用不同容积的凹版辊•Changingcoatingthicknessmorethanasmallamount，requireschanginggravurerollerw

7、hichwithdifferentcellvolume2.3凹版辊涂布绕性刮刀定厚实验数据experimentalmeasurementsofexcesscoatingthicknessonthreedifferentgravureroller涂层厚度是和刮刀负载和1刮刀弹性模数的函数excesscoatingthicknessisafunctionofthebladeloadingandelasticitynumber2.5隔膜凹板辊涂布过程存在的几个问题someproblemoccurinseparatorgravureroll

8、ercoatingprocess•隔膜涂布过程中，由于高硬度氧化铝颗粒作用，网纹辊磨损快becauseoftheeffectofthehardAlOgrain，occur23rapidwearofthegravureroller•涂布