The photovoltaic industry is experiencing rapid technological evolution. Emerging cell technologies are driving deeper synergy between PV modules and encapsulation materials. While different technical routes offer distinct advantages, differentiated adaptation of encapsulants has become key to enhancing system efficiency and reducing LCOE. Since 2024,
Back Contact (BC) cell technology has achieved remarkable progress, with mass production efficiencies poised to exceed 28%, prompting major module manufacturers to actively deploy it.
Addressing the specific technical requirements of BC modules, Betterial unveils its dedicated encapsulation solutions:?BC Ultra-Barrier Film, Betterial Highly Reflective Black Encapsulation Film,?Highly Reflective Black Backsheet, and Westdon BC Insulating Adhesive. These innovations significantly enhance the reliability and stability of BC modules.
1. Proprietary High-Barrier Technology | Superior Anti-PID Performance
Betterial’s BC Ultra-Barrier Film incorporates proprietary anti-hydrolysis technology, effectively delaying EVA resin aging and hydrolysis. Its ion adsorption technology inhibits charged particle migration, while ultra-low acid technology significantly mitigates corrosion of the passivation layer’s silver-aluminum contacts.
2. In-House BC Insulating Adhesive | Enhanced Stability
The connection points between the positive and negative electrodes on the rear side of BC cells require insulation using BC adhesive to prevent short circuits caused by busbar contact. To meet diverse customer needs, Betterial’s subsidiary Westdon has developed?Westdon? BC Rapid Thermal Cure Adhesive?and?BC UV Cure Adhesive. Utilizing specialized resin technology, these products offer faster curing rates under LED UV light, superior oxygen inhibition resistance, and reduced photoinitiator requirements. Verified testing demonstrates significant advantages in adhesion strength, damp heat resistance, and anti-yellowing properties.
3. Ultra-Transparent Film Technology | Higher Light Transmittance
Compared to conventional films, the?Betterial? Ultra-Transparent EVA/EPE Film?achieves an average light transmittance increase exceeding 0.2% within the 380-1100nm wavelength range. Its higher transmittance and lower refractive index effectively broaden the light capture angle.
4. Infrared High-Reflective Black Technology | Increased Conversion Efficiency
Betterial Infrared High-Reflective Black and Ultra-High Reflective Black?encapsulation technologies achieve reflectivity rates of 60% and 95%, respectively. Utilizing highly reflective pigments and fillers, they substantially boost internal reflectance, enhancing the photoelectric conversion efficiency by 2-4% per 100W module.
In today’s thriving PV industry, maintaining technological diversity and foresight is paramount to securing existing advantages while capturing the strategic high ground in next-generation PV technology. As a global leader in PV encapsulation,?Betterial?prioritizes R&D innovation. We have systematically developed a comprehensive product portfolio covering encapsulation solutions for BC, TOPCon, HJT, Tandem Perovskite, and Perovskite cell technologies, providing global customers with holistic encapsulation technology solutions.
Learn more about Betterial’s Encapsulation Solutions:
Visit us at SNEC (June 11-13) at Booth?2.2H-E110 for technical exchange and business discussions.
