Longi Creates New World Record For P-Type Solar Cell Efficiency

LONGi has declared that it has achieved new world record conversion efficiency of 26.12% for its p-type silicon heterojunction (HJT) cells. The record, validated in testing carried out by the Institute for Solar Energy Research (ISFH) in Hamelin, Germany, was achieved on full-size (M6, 274.3cm2) gallium-doped p-type monocrystalline wafers and is the highest record for p-type cell efficiency to date, further confirming the feasibility of low-cost HJT mass production technology.

LONGi said that the cell efficiency is 0.65% higher than that of 25.47% released earlier this year. This, said the company, demonstrates its ongoing commitment to driving industrial progress via technical innovation.

In the process, the LONGi R&D team has enhanced the crystal pulling process in response to increased demand for performance indicators for p-HJT wafers, such as resistivity and lifespan. The efficiency of the cell has been significantly improved in terms of short-circuit current (Isc), open-circuit voltage (Voc) and fill-factor (FF), with increases of 1.06%, 0.3%, and 1.1% respectively, due to continuous developments in interface passivation and window layer micro crystallization processes.

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LONGi specifically noted that the development process is similar to that for an n-type cell, fully demonstrating the technology’s versatility and reliability.

LONGi claims to be a world-leading solar technology company that has a long-term record of delivering higher value to end users via continuous technological innovation. In 2021, LONGi claims to have broken the world record for cell conversion efficiency seven times, with efficiencies for n-type TOPCon, p-type TOPCon and n-type HJT cells reaching 25.21%, 25.19% and 26.30% respectively.

LONGi stated that it is committed on focusing on customer-driven value creation for full scenario energy transformation.

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Recently LONGi released a new half-cut cell module having 66 solar cells version of its previous HiMO5 module that is designed for the European market specifically.

It also revealed that in the first half of 2022, the company had exported 39.62 GW of monocrystalline silicon wafers. Out of all, 19.47 GW were used internally and 20.15 GW were sold to third parties.