On May 23, Jingao Science and Technology and Jinshi Energy jointly announced that. The HBC cell promoted by its cooperation was tested by T TÜV Rheinland and obtained 28.
Digital New Energy DataBM
. A new energy official micro-release said that the company and Professor Martin Green of the University of New South Wales (UNSW) in Australia have carried out in-depth cooperation in the field of TBC batteries. For the first time, the key technical paths for improving the efficiency and reducing the cost of TBC fully passivated contact cells were systematically revealed .
The key point is that this new cooperation with Martin Green's team focuses on improving the efficiency and reducing the cost of TBC batteries, defines two key paths for industrialization to improve the efficiency and reduce the cost, and continuously improves the conversion efficiency of batteries through the design of new passivation layers. By innovating the pad point design of the BB0 electrode without a main grid, the https://www.databm.
is rapidly reduced; compared with a multi-grid line, The photovoltaic cell with zero grid line design can reduce the amount of silver paste by about 3-4mg/W. Song Dengyuan, chief technology officer (CTO) of Yidao Xinneng, said, "The specific decline will fluctuate slightly with the different metallization graphic design of photovoltaic cells."
According to Song Dengyuan, Yidao Xinneng has started the mass production of TBC batteries using 0BB technology in the second half of 2025. At present, " at this stage, Yidao Xinneng has achieved large-scale production of TBC batteries, and the silver consumption of mass-produced batteries is about 6mg/W . The highest conversion efficiency of mass-produced superior batches of batteries has exceeded 27% , which further verifies that zero main grid (0BB) technology has excellent cost-effective advantages.
Source: Yiyi Xinneng
On April 27, Trina Solar announced that its self-developed new THBC hybrid passivation back contact battery. Certified by the authority of Hamelin Solar Energy Research Institute in Germany, the highest conversion efficiency is 28.
It is worth noting that Trina Solar said that THBC is also suitable for mass production of thin silicon wafers (110-130 microns) and is highly compatible with the current mainstream TOPCon production line.
At present, based on the built THBC pilot line, Trina Solar has accelerated the industrialization of the technology components, "it is expected that the power of the industry standard medium version components (2382 mm-1134mm) can exceed 700 W". According to
the latest news, Ni Lili, president of Trina Solar Photovoltaic Products Division, revealed that Trina Solar has built a THBC pilot line, and its production capacity is under construction, which is expected to be released gradually this year .
On the morning of April 28, the day after Trina Solar announced that it had broken the record, Longji Green announced that its self-developed hybrid back-contact solar cell HIBC had been certified by the German Institute of Solar Energy (ISFH).
At the same time, Longji Green Energy also announced that the components based on HIBC batteries were certified by the Rocky Mountain National Laboratory of the United States. Efficiency breaks through to 26.
According to Zhong Baoshen, chairman of Longji Green Energy, at the performance presentation meeting at the end of April, the company has a 600MW HIBC production line, which has been producing the technology for two years. However, Zhong Baoshen also said frankly that the cost and investment of HIBC technology are very high at present. While the
industry is still immersed in the technological breakthroughs achieved by the two leading enterprises mentioned above, TCL Zhonghuan has set off a new wave with its "native" BC components.
TCL Central announced on May 19 that the new generation of BC high-efficiency components in Tianjin Base was officially offline, and the company's BC technology entered the stage of large-scale production.
TCL Zhonghuan mainly focuses on "native" - "native technology" + "native material" as the core barrier for its BC component positioning . The highest component efficiency is 25.
TCL Zhonghuan said that it not only has 1600 original BC bottom layer patents, but also has exclusive supply of Zhonghuan BC silicon wafers, which are highly matched with the process. At the same time, in the field of BC technology, with more than 30 years of research and development, the efficiency of TBC cells has exceeded 27%, and the temperature coefficient is as low as-0.
In addition, on May 9, Gaojing Solar announced that the 3 millionth GBC module was offline. Since the cooperation with Aixu in 2024, it has been more than a year since Gaojing Solar Energy laid out the BC track.
According to the article of Gaojing Guanwei on May 8, the first batch of BC equipment of Gaojing just entered Guangzhou base 11 months ago. Nowadays, Gaojing BC products have four series-standard series BC, classic series BC, full core series BC and full screen series BC.
It is reported that Gaojing is one of the only companies in the world to achieve mass production of BC full-screen components.
At present, although BC technology can not be compared with TOPCon in terms of industrial scale, it is gradually winning more recognition from the industry and moving towards the center of the photovoltaic stage.
In addition to the above enterprises, according to Digital New Energy DataBM.
At the same time, BC has also won more and more favor in the terminal market, the collection of photovoltaic modules by state-owned enterprises and overseas module markets such as Europe.
Now, the SNEC Photovoltaic Exhibition in 2026 is about to be launched. According to past practice, major enterprises will show off their technological strength at the exhibition, with cutting-edge technology and heavy new products appearing intensively.
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