Ribbons
Function, specs and selection of interconnect and busbar ribbons
Articles
- Copper-Clad Aluminum (CCA) Ribbon: The Cost Is Tempting, So Why Are Leading PV Makers Still Holding Back?Structure and manufacturing, current adoption, the four big risks (electrochemical corrosion, thermal-expansion mismatch, solder interfaces, long-term validation) and a side-by-side comparison with pure copper explain why CCA ribbon is still only being validated at tier-1 module makers.
- The Workhorse Alloy of Low-Temperature Ribbon: Sn32Pb42Bi26 in PV Ribbon Today and TomorrowSn32Pb42Bi26 melts at about 136–143 °C and is one of the main production alloys for low-temperature HJT and 0BB soldering. This article covers its properties, applications and market, the challenges from lead compliance and soaring bismuth prices, and the substitution path ahead.
- Copper Tops 110,000 CNY/t: How Far Is Copper-Clad Aluminium Ribbon from Mass Production?With copper at a record high and the copper/aluminium price ratio near 4.6×, CCA ribbon could save over 2 fen per watt on paper. This article reviews where tier-1 makers, tier-2/3 makers and suppliers stand, breaks down how hard it is to switch bus ribbon, BC, SMBB and 0BB ribbon to CCA, and sets out four gates to mass production and three signals to watch.