In April 2021, photovoltaic leader Longji Green Energy Technology Co., Ltd. (hereinafter referred to as Longji shares) announced that the conversion efficiency of N-type TOPCon cells reached a new world record of 25.09%. Only one month later, Longi broke the record set by himself again.
The company announced on June 1 that it has been tested by the world’s recognized authoritative testing institution Hamelin Institute of Solar Energy (ISFH) in Germany. The research and development of N-type TOPCon battery achieves a conversion efficiency of up to 25.21%; the efficiency of commercial-size single-crystal double-sided P-type TOPCon battery is the first in the industry to exceed 25%, achieving a world record of 25.02%, which is the highest efficiency of current commercial-size P-type battery; The conversion efficiency of the commercial-size monocrystalline HJT battery of Longji New Technology R&D Center reached a record 25.26%, realizing the company’s leapfrog development in the research and development of HJT battery technology.
This means that LONGi has broken through three world records for the conversion efficiency of commercial-size monocrystalline solar cells, each breaking the 25% mark.
The current mainstream photovoltaic cell technology is PERC cell, but the industry believes that traditional PERC cell conversion efficiency is facing a bottleneck, and the conversion efficiency is close to the theoretical limit of 24%. There will be room for improvement in the future. limited. TOPCon and HJT are the new generation batteries most sought after by photovoltaic giants in recent years. Wang Yingge, general manager of LONGi’s brand, once told the media that LONGi has reserves and research on two new technologies, HJT and TOPCon, both of which are monocrystalline silicon cells. LONGi can still take advantage of monocrystalline silicon wafers.
In 2020, LONGi’s monocrystalline silicon wafer and module shipments will rank first in the world. Last year, its R&D investment was 2.592 billion yuan, accounting for 4.75% of revenue.