Major Breakthrough! LDK's HIBC Technology and Mass Production Components Unveiled!

On June 11th, at the 18th (2025) International Solar Photovoltaic Exhibition (SNEC), LDK officially launched its newly developed HIBC technology and mass production component products. HIBC breaks new ground in the industry, achieving 700W+ power for the first time based on the 2382mmX1134mm golden size, and the mass production component efficiency is approaching 26%, comprehensively leading the photovoltaic component efficiency into the "25%+ era."

■ SNEC2025 LDK Booth

 

HIBC Major Launch

 

HIBC (Hybrid Interdigitated Back-Contact) technology, namely high and low temperature composite passivated back contact technology, integrates the characteristics of HJT and BC technologies, and for the first time globally achieves large-scale mass production of components.

 

LDK Chairman Zhong Baoshen said at the launch conference that this is another peak in LDK's technological innovation, and another major innovation in LDK's BC technology route.

 

In April 2025, the HIBC cell conversion efficiency reached 27.81%, creating a new world record, as certified by the Hamelin Solar Energy Institute (ISFH) in Germany.

 

■ Zhong Baoshen delivered a speech titled "Start with the End in Mind, Know by Action" at the HIBC launch conference

 

Zhong Baoshen stated that conversion efficiency is not only a lighthouse for photovoltaic technology, but also the lifeblood of photovoltaic products. LDK has always actively advocated within the industry for "increasing power on the same area or standard size, that is, increasing single-unit output."

 

"Simply increasing efficiency through physical stacking and area expansion brings limited customer value; at the same time, after the area is expanded, the reliability and quality risks are also obvious." said Zhong Baoshen.

 

Although LDK's HPBC2.0 product has already established a leading position in the market—a 72-piece standard-size component, consistently leading TOPCon products by 30W—LDK has not stopped its technological and product research and development.

 

The HIBC technology product launched this time achieves 700W+ power with the golden size of 2382mmX1134mm, a power density exceeding 259W/㎡, and a component efficiency as high as 25.9%. "This is currently the most efficient industrialized photovoltaic product in the world. Through the improvement of efficiency, that is, single-unit output, it truly achieves the unification of high value and reliability." said Zhong Baoshen.

259W/㎡ First to Introduce "Power Density"

 

At this launch conference, LDK's HIBC technology 700W component also made its official debut.

 

■ LDK Chairman Zhong Baoshen and LDK Distributed Business Group President Jiang Dongyu jointly unveiled the 700W HIBC component

 

Compared with other 700W components in the industry (the size is mostly 2384mmX1303mm), this component has an area 0.4㎡ smaller, but its power density is 34W/㎡ higher, completely breaking the inherent logic in the industry that "large size brings high power."

 

"LDK has always adhered to technological innovation and has always adhered to high-quality standards and customer interests first." This component has a power density as high as 259W/㎡. Whether for increasingly scarce high-value land or valuable rooftops, this component will be a more valuable choice.

 

This is also the first time LDK has introduced the concept of "power density" in the industry. Another major value brought by HIBC technology is that it comprehensively leads the photovoltaic mass production component efficiency into the "25%+ era." As we all know, in the PERC era, the component efficiency is at 22%+, TOPCon brings 23%+, and the mass production efficiency of 24%+ components is opened by BC.

 

Now, the 700W component launched by LDK is the result of adding HJT high-quality passivation technology to BC technology. "In less than 3 years, we have raised the photovoltaic component efficiency to a higher level, which also fully demonstrates the high scalability of BC technology—with greater potential for efficiency improvement." said Zhong Baoshen.

 

"Father of Solar Energy," Professor Martin Green of the University of New South Wales in Australia, also highly praised LDK's innovation in BC technology at the launch conference. "Recently, we updated the world's solar cell efficiency list, and LDK's HIBC technology topped the list, ranking first, which is also thanks to LDK's unremitting efforts in the BC technology track."

 

■ Professor Martin Green, "Father of Solar Energy," attended the launch conference and gave high praise to LDK's technological innovation

 

In addition, the HIBC product adopts high-density packaging technology, and the cell area ratio has increased from 93.2% to 95.1%, which can greatly increase the light absorption area and truly achieve a balance between reliability and high efficiency.

 

On May 7 this year, LDK officially launched the EcoLife series at the Intersolar exhibition, which is a mass production product based on HIBC technology. This component has a mass production cell efficiency of 27.3% and a component efficiency exceeding 25%. Zhong Baoshen said that the reason for its first launch in Europe is mainly to target the high-end household market, and it will gradually be introduced to the domestic industrial and commercial market, striving to bring greater value to customers in the "post-5.31 era."

Five Major Advantages, Suitable for All Scenarios

 

■ Lv Yuan, President of LDK Distributed Business Group Product and Solution Center, details the performance of HIBC components

 

Lv Yuan, President of LDK Distributed Business Group Product and Solution Center, detailed the five core advantages of HIBC component products at the launch conference: "Moisture Resistance", "High Temperature Resistance", "High Load", "Corrosion Resistance", "High Fire Resistance":

 

Moisture Resistance: For 40% of the global high-humidity and high-temperature regions and 84% of China's high-humidity industrial and commercial scenarios, HIBC uses advanced high-water-resistance materials to block the diffusion path of water molecules, and the moisture resistance attenuation ability is improved by more than 4 times compared to TOPCon products, ensuring long-term stable power generation in high-humidity environments;

 

High-Temperature Power Generation Advantage: The temperature coefficient is as low as -0.24%, better than the industry mainstream level, and the power generation gain in high-temperature environments is up to 3%. It is especially suitable for the high-temperature conditions of rooftop installation in distributed scenarios, greatly improving the owner's income;

 

Corrosion Resistance and Load Performance: The new frame design combines corrosion resistance and mechanical advantages, and can withstand a load strength of +6000Pa/-3600Pa, while the insulation characteristics achieve ground connection without protection, effectively reducing the complexity of system design and engineering implementation; in addition, the maximum breaking force of HIBC cells based on Tongrui silicon wafers is increased by 16%, and the unique "one"-shaped weld ribbon design of BC technology reduces the edge stress of the cells by 48%, significantly enhancing the anti-hidden crack ability;

 

Fire Prevention and Anti-Shading Technology: Through the equivalent bypass diode design, the HIBC component can recover 70% of power loss when partially shaded, and simultaneously reduce the heating power at the shaded part, eliminating the risk of hot spot fire from a technical perspective, and comprehensively ensuring the safety of distributed scenarios.

Begin with the end in mind; Expand the BC ecosystem

At this press conference, Zhong Baoshen also disclosed the achievements of Longi's BC ecosystem construction since its official launch in 2023. As of the end of May 2025, Longi has conducted technical docking with 191 partners worldwide, reaching cooperation agreements with 44 partners on 55 projects, covering seven major fields: silicon wafers, cells, components, system solutions, hydrogen energy, biomass, and engineering technology, achieving preliminary income of 1.95 billion yuan.

 

Zhong Baoshen announced Longi's achievements in building the BC ecosystem from 2023 to 2025 at the press conference

 

At SNEC on May 24, 2023, Longi officially launched the STAR innovative ecological cooperation platform to the world, aiming to build a global collaborative innovation ecosystem centered on the "Global Zero-Carbon Technology Innovation Center."

 

On July 3, 2024, at the inauguration ceremony of the global distributed R&D center, Longi officially announced the operating guidelines for building the BC ecosystem, including three value propositions, three cooperation principles, and four modules: partner evaluation, model selection, technology empowerment, and value sharing, aiming to ensure implementation through specialized organizations, full-chain processes, digital systems, and full-cycle monitoring.

 

"Our original intention remains to begin with the end in mind, and we are committed to cultivating fertile ground for the healthy, benign, and sustainable development of the photovoltaic industry." said Zhong Baoshen.

 

In the future, Longi will further expand and deepen cooperation to improve and amplify the social value of BC technology, so that it can penetrate thousands of industries and households.

 

Longi's distributed China regional president, Niu Yanyan, explains products at the exhibition booth