电池片外观标准Defectltem检查项目Passingcriteria合格标准Body总体外观Microcracksandholes缺口及孔洞Novisiblecracksorholes目测不允许存在EdgeChips裂纹Nochipvisibleatcelledge目测不允许存在Surfacedamage(front)正面崩边Maximum2sites;≤2mminlengthand≤1mminwidth≤2mm长×1mm宽；最多不超过2处Surfacedamage(back)背面崩边Maximum3sites;≤3mminlengthand≤1mminwidth≤3mm长×1mm宽；最多不超过3处Surface外观Stains,fingerprints,etc斑点Frontsidesurfacestains,maximum3stains,totalarea≤15mm²(PECVDpinmarksexcluded)斑点≤3个，总面积≤15mm²，（PECVD钩点不计）Discolor色差≤1/4cellarea小于电池片整体面积的1/4Scratch划伤Totallength≤10mm总长度≤10mmSurfacebump表面突起Diameter<2mmandheight<0.3mm直径<2mm，高度<0.3mmPrint(front)正面印刷Fingerinterruption细栅线断开Eachinterruption<1mmandmaximum2eainterruption断栅长度<1mm，个数≤2个Missingbusbar正面主栅线缺失Missingarea≤5mminlengthand≤0.5mminwidth缺失总面积≤0.5mm宽×5mm长Fingerknots结点Maximum10knots总个数≤10个Printingalignment印刷偏移a.Distancebetweenpatternareaandedge≤0.5mm;b.Distancebetweenborderlineandtheedge＞0.5mma.左右偏移：印刷两边距离的差≤0.5mm，且任何细栅线不能到电池片的边缘；b.角度偏移：边框线与边缘的最小距离＞0.5mmPrint(back)背面印刷Missingbusbar背面主栅线缺失Missingarea≤5mminlengthand≤0.5mminwidth缺失总面积≤0.5mm宽×5mm长Gapbetweenthetwobackscreenprints主栅与背场间隙Notallowed不允许MissingAlpaste背面铝浆缺失Totalareaof≤5mmindiameter缺失总面积≤5mm*5mmPrintingalignment印刷偏移a.Distancebetweenpatternareaandedge≥0.5mmb.Distancebetweenbackfieldandtheedge＞0.5mma.左右偏移：印刷两边距离的差≤0.5mm，且浆料不能接触到电池片的边缘；b.角度偏移：背场与边缘的最小距离＞0.5mm