Optimization of Copper Wire Tinning for the Production of Solar Modules

Patianova, A. O.; Ivanova, K. Yu.; Кузьмин, М. В.; Semenov, V.L.; Alexandrov, R. I.

doi:10.3103/s1068371221080101

Cited by 1 publication

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“…Decreased cathode efficiency, and thus lower deposition capacity especially at low current densities, is caused by reducing the pH, particularly in sulphate baths [10,11]. However, at higher pH coarse-crystalline and spongy coatings unfavourable for these types of solutions are formed [12,13]. Even though fluoroborate baths are most often used due to their exceptional https://journals.agh.edu.pl/jcme adhesion and high cathode efficiency, they unfortunately have numerous disadvantages such as being susceptible to corrosion caused by the oxidation of Sn 2+ ions to Sn 4+ ions and also adverse environmental effects caused by fluoride ions [14][15][16][17].…”

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confidence: 99%

Ecological Electroplating Baths and Their Application in the Tin-coating of Copper Wires Intended for Photovoltaic Cables

Olędzki,

Knych,

Zasadzińska

2023

JCME

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Copper wires are covered with various coatings for many different applications. The most popular are tin based coatings and both their thickness and quality have been standardized by means of appropriate standard specifications. Copper wires intended for photovoltaic cables are subjected to especially high requirements due to their exceptionally long operating time and extremely unfavourable working conditions. Tin coatings are applied using the electroplating method and generally a fluoroborate bath is used during the process, however, it has been proved to be a health hazard in general and harmful to the environment as a whole. The paper presents the research results of a new ecological methane-sulfonate bath which does not form hazardous waste in the process. The examples of tin coatings of various thickness and the way of obtaining them at varying electrodeposition speeds at constant current or constant speed with varying current intensity were analysed. It has been determined that the use of the new electroplating bath is not only beneficial from an ecological point of view, but also in terms of the coating quality and efficiency of the process.

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