OBB photovoltaic ribbon mainly include ribbon with a wire diameter of 0.20mm. At present, OBB technology is mainly applied to HJT+0BB combination, and welding strips with a wire diameter of 0.20mm are used for customers such as Dongfang Risheng.

Specification parameters of OBB photovoltaic ribbon

Wire diameter: 0.20mm

Application: Mainly used for HJT+0BB combination, suitable for new efficient components such as N-type TOPcon

Advantages and application scenarios of OBB photovoltaic ribbon

Reduce silver consumption: OBB technology significantly reduces the amount of silver paste used by eliminating the main gate, especially in HJT technology, where the effect is most significant, reducing silver paste consumption by about 20% -40%.

Improving power generation efficiency: The welding strip diameter is smaller, the shading area is reduced, the current transmission distance is shortened, the power loss is reduced, and the power generation efficiency is improved. It is expected that OBB technology can increase component power by more than 5W.

Process simplification and cost reduction: The series connection process of battery cells has been simplified, improving production efficiency while reducing the use of silver paste and packaging materials, further reducing production costs.

Beneficial for thinning silicon wafers: it solves the problems of hidden cracks and broken gates caused by welding after thinning, which helps to achieve breakthroughs in thinner battery cells and improve battery conversion efficiency.

Power generation gain: brings higher double-sided rate, lower temperature coefficient, and better weak light effect, further enhancing power generation gain.