Longi to work with cell producer Aiko Solar on CCz crystal pulling

Corporate buildings of Longi and Aiko Solar
Longi and Aiko Solar want to cooparate at the development of high-efficiency wafers from CCz ingots – Image: Longi/Aiko Solar

In contrast to its skeptical statements on the continuous Czochralski (CCz) process in the recent past, leading monocrystalline solar wafer manufacturer Longi Green Energy Technology has signed a cooperation agreement with Chinese cell producer Aiko Solar on developing high-efficiency monocrystalline wafers from ingots grown with the CCz process.

In an announcement released on its Chinese website on August 3, the company said: “At present, Longi has officially completed the research and development of CCz high-efficiency monocrystalline products and has mass production capabilities.” The existing production equipment could be upgraded based on the CCz process, Longi added.

Back in May, Longi’s president Li Zhenguo still expressed skepticism about the CCz process. The advantage of more even distribution of electric resistance that CCz ingots show would only have a limited effect on the performance of solar cells in existing manufacturing lines, Li argued.

Aiko has a production capacity of 5 GW for monocrystalline bifacial PERC cells.

NEW: Get Your In-depth Report – The Polysilicon Market Outlook 2027

  • Benefit from 102 pages full of rich data, in-depth analyses and detailed forecasts on the polysilicon, solar and semiconductor industries
  • Learn all about the latest developments of polysilicon manufacturing technologies (Siemens process, fluidized bed reactor, upgraded silicon kerf loss from wafer sawing)
  • Obtain comprehensive data on production volumes and capacities of 45 solar-grade and electronic-grade polysilicon plants from 2020 through 2027
  • Gain insight into decisive market trends, based on four sophisticated scenarios of supply and demand through 2027
  • Get valuable guidance with cash cost data on 30 solar-grade polysilicon plants and spot price forecasts through 2027

Go to the Report

Go back


Add a comment

Back to Polysilicon News