MWT (Metal Wrap Through) is a new solar cell technology that has the following advantages and disadvantages over traditional crystalline silicon cells:

1. Improve photoelectric conversion efficiency: MWT cells by moving the metal electrodes on the back of the cell to the front of the cell, reducing the blocking area on the back of the cell and improving the light absorption efficiency, thus improving the photoelectric conversion efficiency.

2. Increase battery output power: With no metal electrodes on the back of the battery, MWT batteries can collect current more efficiently and reduce current loss, thus increasing the output power of the battery.

3. Improve battery reliability and durability: MWT batteries use a more reliable backside metal electrode connection, which reduces the thermal stress and current thermal effect on the backside of the battery and improves the reliability and durability of the battery.

4. Reduced production cost: MWT batteries adopt a more simplified production process, which reduces the number of production stages and the amount of materials used, and reduces the production cost.

Disadvantage:

1. Complex manufacturing process: Compared with traditional crystalline silicon battery cells, the manufacturing process of MWT cells is more complex, requiring additional process steps and equipment, increasing production costs and technical requirements.

2. Relatively low technology maturity: MWT technology is relatively new and has not yet been widely used and verified, its technology maturity is relatively low and there may be certain technical risks and uncertainties.

3. Limited efficiency improvement: Although MWT cells can improve the photoelectric conversion efficiency, but compared to other new solar cell technologies (such as PERC, HJT, etc.), its efficiency improvement is relatively limited.