Strong bet by leading enterprises, what is the charm of BC batteries

   BC battery (Back Contact) is a solar cell technology, and its charm mainly lies in the following aspects:

   ① The structural feature of BC cells is the absence of grid lines on the front side, which completely eliminates the shielding loss caused by grid line electrodes and

achieves maximum utilization of incident photons. Compared with conventional solar cells, the short-circuit current Jsc can be increased by about 7%

   ② BC component packaging is more convenient and flexible, changing from the conventional "Z" - shaped welding to full back shaped welding, avoiding the

complex packaging process and effectively improving the component's ability to resist hidden cracks. For example, the edge stress of Longi HPBC batteries is

reduced by 48% compared to traditional non BC battery cells;

   ③ BC battery has a beautiful appearance, with a more uniform and attractive front color tone

   As the efficiency of PERC cell technology approaches its limit, the market share of N-type cell technology is gradually expanding. TOPCon technology is considered

one of the potential mainstream technologies in N-type battery technology.

   As a new type of battery, the market development of BC batteries is still in its early stages.

   BC batteries improve their ultimate conversion efficiency by increasing the illuminated area and reducing the angle of optical loss, and there is no substitute

relationship between them and other batteries.

   At present, BC batteries led by leading enterprises have entered the stage of actual delivery and use. Their core competitiveness lies in efficiency and aesthetics,

with obvious differentiation, and are favored by overseas high-end distributed markets.

   The BC battery market has a bright future. According to leading companies' predictions, by 2025, the market share of BC batteries will increase from the current

1-3% to 10-15%, with an average annual expansion scale of about 40GW.

   According to relevant institutions' predictions, BC technology is expected to occupy 30-40% of the market share in the future, coexisting with TOPCon, HJT, PERC

and other technologies to build a diversified battery market pattern.

   In summary, BC batteries have become an important development direction in the field of solar cells due to their multiple advantages such as high efficiency,

unique structural design, good compatibility, potential cost reduction space, and broad market prospects. With the continuous advancement of technology and the

expansion of production capacity, BC batteries are expected to occupy an important position in the future solar energy market.