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Titel:
Corrosion resistance test based on electrochemical noise-limiting the number of long-lasting and costly climate chamber tests
 
Auteur(s):
 
Gepubliceerd door: Publicatie datum:
ECN Zonne-energie 30-9-2013
 
ECN publicatienummer: Publicatie type:
ECN-M--13-030 Conferentiebijdrage
 
Aantal pagina's: Volledige tekst:
3 Download PDF  (240kB)

Samenvatting:
Damp-heat testing of PV modules is a time-consuming process, taking months. The electrochemical noise (EcN) set-up is a fast, direct corrosion measurement of solar cells, whereby results can be obtained within one hour. EcN measurements are presented for several solar cell concepts and different environments. It correlates with damp-heat degradation involving corrosion, which is rather common in EVA-encapsulated crystalline Si modules. Furthermore, the EcN test can be done as an evaluation tool when probing alternative brands, formulations or processing for metallisation pastes and as a screening test for new batches of metallisation paste.


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