Ion scavenger for solar cells, sealant composition for solar cells containing same, and solar cell module
A solar cell and ion capture agent technology, applied in phosphorus compounds, circuits, energy input, etc., can solve problems such as insufficient, adverse effects of sealing resin, and encourage corrosion of solar cell components, and achieve the goal of inhibiting corrosion and inhibiting output reduction Effect
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Embodiment 1
[0122] After dissolving 0.272 mol of zirconium oxychloride octahydrate in 850 mL of pure water, 0.788 mol of oxalic acid dihydrate was added and dissolved. While stirring this aqueous solution, 0.57 mol of phosphoric acid was added. Stirring this, it refluxed at 103 degreeC for 8 hours. After cooling, the obtained precipitate was sufficiently washed with water, and then dried at 150°C to obtain a scaly powder composed of zirconium phosphate. As a result of analyzing this zirconium phosphate, it was confirmed that it was α-zirconium phosphate (H type) (hereinafter referred to as "α-zirconium phosphate (Z1)").
[0123] The above-mentioned α-zirconium phosphate (Z1) was boiled and dissolved in nitric acid to which hydrofluoric acid was added, and then subjected to ICP emission spectroscopic analysis to obtain the following composition formula.
[0124] ZrH 2.03 (PO 4 ) 2.01 0.05H 2 o
[0125] Moreover, when the median diameter of (alpha)-zirconium phosphate (Z1) was measur...
Embodiment 2
[0129] Except that the amount of 0.1N-LiOH aqueous solution used was set to 2500 mL, the same operation as in Example 1 was carried out to manufacture ZrLi in which all cation exchange groups (cation exchange capacity: 6.7 meq / g) were replaced by lithium ions. 2.03 (PO 4 ) 2.01 0.05H 2 Lithium ion substituted α-zirconium phosphate composed of O. The moisture content was 0.3%. Hereinafter, it will be referred to as "all Li substitution type α-zirconium phosphate A1-2".
[0130] Next, the above-mentioned various evaluations were performed using the ion scavenger for solar cells containing this all-Li substituted type α-zirconium phosphate A1-2, and the results are shown in Table 1.
Embodiment 3
[0132] Instead of 0.1N-LiOH aqueous solution, use 0.1N-KOH aqueous solution, in addition, carry out the operation similar to Example 1, manufacture by ZrK 1.03 h 1.00 (PO 4 ) 2.01 0.03H 2 Potassium-substituted α-zirconium phosphate composed of O. The moisture content was 0.5%. This potassium-substituted α-zirconium phosphate is α-zirconium phosphate in which 4 meq / g of the total cation exchange capacity is substituted with lithium ions. Hereinafter, it will be referred to as "4meq-K substitution type α-zirconium phosphate A1-3".
[0133] Next, the above-mentioned various evaluations were performed using the ion scavenger for solar cells containing this 4meq-K substitution-type α-zirconium phosphate A1-3, and the results are shown in Table 1.
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