Development of technology for obtaining electrodes based on copper wire using in the manufacture of solar modules

Abstract

To optimize the technological process of manufacturing copper wire coated with solder of the POIN-52 grade, the optimal modes for the tinning temperature, linear velocity, diameter of the diamond die and flux were identified. It was found that the best wire tinning process is achieved when cleaning the surface of a copper wire by the method of electrochemical degreasing. The results of the tests showed that, in terms of mechanical and electrical parameters wire meets the require-ments for electrodes in the manufacture of solar modules. The results of climatic tests of solar modules showed a high degree of reliability with a power loss of 0.86% and thermal cycling tests with a power loss of 0.4%, which is within tolerance.

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

“…Selecting the proper chemical composition of the electroplating bath is just one of the factors influencing the tin-coating process. Other important factors are current density, constituting current intensity and the conductor cross-section, and also bath temperature, type, quality and chemical purity of the substrate, type of current, shape of the anode and process velocity [23][24][25][26][27]. The pulsed current techniques have also been a concern of the researchers [28].…”