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发明公开
CN102503150A 一种太阳能电池正极银浆用无铅玻璃粉及其制备方法 无效 - 驳回

一种太阳能电池正极银浆用无铅玻璃粉及其制备方法
摘要：
本发明涉及一种太阳能电池正极银浆用无铅玻璃粉，该无铅玻璃粉的原料包括以下组分和重量百分含量：Bi2O320～75％、B2O31～10％、Al2O30.5～10％、SiO25～30％、CuO 0～8％、Li2O 0～10％、ZrO20～10％、Na2O 0～5％。与现有技术相比，本发明具备如下两个优点：1.用本发明玻璃粉所制的电子浆料烧结后，和硅片膨胀系数匹配，收缩率小，烧结后的太阳能电池片翘曲度小，电池片成品率高。2.本发明玻璃粉化学稳定性好，软化点适中，用本发明玻璃粉所制的电子浆料烧结后欧姆接触好，转化效率高。
摘要（英）：

The invention relates to leadless glass powder for silver paste of an anode of a solar cell. The leadless glass powder comprises the following raw materials in percentage by weight: 20 to 75 percent of Bi2O3, 1 to 10 percent of B2O3, 0.5 to 10 percent of Al2O3, 5 to 30 percent of SiO2, 0 to 8 percent of CuO, 0 to 10 percent of Li2O, 0 to 10 percent of ZrO2, and 0 to 5 percent of Na2O. Compared with the prior art, the invention has two advantages that: 1, after electronic slurry prepared by the glass powder provided by the invention is sintered, the electronic slurry is matched with a silicon wafer in the expansion coefficient and has small shrinkage factor, the sintered solar cell plate has small warping degree, and high yield; and 2, the glass powder provided by the invention has good chemical stability and proper softening point, and the electronic slurry prepared by using the glass powder provided by the invention has good ohmic contact and high conversion efficiency after being sintered.

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