Trina's Multi-busbar Technology
Trina were one for the first Chinese manufacturer’s to offer multi-busbar technology or MBB on the full range of new modules.The reason for the transition to MBB is rather simple, to increase efficiency and reliability. One problem with the traditional flat ribbon busbars on the front of the cell is that they partially shade the cell, which reduces efficiency and performance. MBB technology is way to increase performance and efficiency by reducing the effects of shading from traditional ribbon busbars.Further benefits include, reduced cell temperature and in turn, reduced risk of hot spot formation in the rare event of a cell fracture.
In comparison with the conventional 5 busbar design, the innovative
multi-busbar design on the cell can shorten the current collection transverse path by 50%
and thereby reduce remarkably the cell internal resistance, which contributes a 1% - 1.5% increase in the power output compared with 5 busbar design. The MBB design can also mitigate the performance loss caused by blocked electrical pathways in case of cell microcracks and finger
electrode erosion due to external factors.