TEL: +86-571-56772661
Categories
Contact Us

Tel:+86-571-56772661
Fax:+86-571-56772663
Office:Room 411, Tower 1, No.19 Xintang Road, Jianggan District, Hangzhou, China
E-mail:info@dsneg.com

Knowledge
Home > Knowledge > Content
Metal Wrap Through (MWT) Solar Cell and Module Technology
Jan 16, 2019

MWT process flow adds two steps compared to traditional cells: 1 ) hole drilling by laser and 2) vias metallization.

The MWT cell concept provides higher efficiency with lower silver paste consumption as the rear contact architecture leads to smaller shaded area.

With respect to standard solar cells, Metal Wrap Through (MWT) solar cells are interconnected on the rear side. The front grid is contacted by metallized vias that lead the current onto the rear side. This reduces shading on the front side and ohmic losses due to cell interconnection. The MWT architecture thus achieves higher efficiencies while keeping the manufacturing costs low. 

Key features of MWT Solar technology:

NO bus-bar 
Less shading, higher conversion efficiency (absolutely improved by over 0.4%), reduce consumption of silver paste.

No welding belt 
Avoid the performance degradation caused by welding stress and microcrack; meanwhile, it is also applicable thinner silicon wafer, which is helpful for reducing cost.

Technical compatibility 
Good compatibility with other technologies, including 1) Conventional P type BSF cells; 2) PERC solar cells; 3) Black silicon for Multi-Si; 4)  HIT/HJT.

Personalized customization 
The pattern of MWT cell finger can be customized.

 

MWT 1.jpg

  

 

mwt33333.jpg 

Process flow for MWT solar cell (Left) and MWT-PERC solar cell (Right)

 

 

MWT 2  .jpg 

Schematic diagram of MWT solar module


  • Contact Us

    Tel:+86-571-56772661
    Fax:+86-571-56772663
    Office:Room 411, Tower 1, No.19 Xintang Road, Jianggan District, Hangzhou, China
    E-mail:info@dsneg.com

  • Categories
  • Copyright © Zhejiang Dongshuo New Energy Co,Ltd All Rights Reserved.