Multi-busbar battery module

What is multi busbar technology?

Another aspect of multi busbar technology is the number of busbars in solar cells. The oldest types of solar cells have 2 busbars only. They were known as 2BB solar panels. With evolved technology and most solar cells were printed with 3 busbars and then 4 busbars.

Are multi busbars necessary for solar cell efficiency?

So, multi busbar technology is definitively influencing and increasing the efficiency of solar cells and collectively solar modules. But still, there is constant debate about how do multi busbars work and whether they are necessary for solar cell efficiency or not. However, how many BB is your solar cell?

What is a multi-busbar solar cell?

However, Multi busbars or MBBs carry current from the fingers through interconnecting ribbons towards the outside in the front of the solar cell. Multi-busbar has the potential to increase the bifacial feature (the ratio of front power to rear power) of the PERC cells.

What is a multi-busbar connector?

In comparison, the multi-busbar connector discussed in this paper is similar to a classical stringer step followed by a standard lamination process: the solar cells are still interconnected in an alternating way, from the front side of one cell to the back side of the adjoining cell.

Why is multi-busbar technology important for photovoltaic cells & modules?

With the multi-busbar design, module performance can be increased because of the reduction in the total series resistance of the interconnected cell strings and also because of improved light utilization owing to the round wires. There are four key advantages to using MBB technology for photovoltaic cells and modules:

Why are busbars used in solar cells?

The common material for making busbars is silver-plated copper to enhance the conductivity on the front and to reduce oxidation at the back. Busbar is denoted by BB in solar cells. Since busbars influence the efficiency of solar cells, the number of busbars used in a solar cell varies depending on its efficiency.