With the changes in global energy forms, the development of
renewable energy, notably the photovoltaics (PV), has reached a global
consensus. Additionally, PV is an essential means for China to achieve its
“dual carbon goals”. And how to develop PV? Advanced technology-led “cost
reduction and efficiency increase” is the only way to follow.
With the increased demand for products with
higher power, higher efficiency, higher power generation, higher reliability,
lower balance of system (BOS), levelized cost of energy (LCOE) and carbon
emissions, the research and development (R&D) of high-performance PV
products has become a prominent trend in the industry. Heterojunction
technology (HJT) is favored by the industry because it is a single-junction
solar cell with the most efficient and highest power generation, and also a
favorable base for tandem cells when combined with the perovskite technology.
It is one of the longest-researched technologies in the industry with 40 years’
history since its laboratory inception. However, in terms of industrialization,
it has been constrained by high costs. Hence, cost reduction is particularly
vital for the industrialization of HJT products.
Risen Energy has been conducting R&D and production of HJT
products since 2019, and has achieved significant progress, four times breaking
of the world record of module power output. Risen Energy’s HJT products
shipments ranked first globally in 2020 and 2021. To provide products with
lower LCOE and promote the industrialization of the HJT technology, Risen
Energy upgraded its HJT products based on the 210mm technology platform in
2022. With continuous in-depth R&D in materials, processes, and equipment,
Risen has mastered key technologies such as ultra-thin silicon wafers,
low-silver paste, 0BB cells, and low-temperature, stress-free cell
interconnection applicable to HJT products, and developed an HJT product with
higher power, greater efficiency, and lower cost, known as “Hyper-ion”.
In this white paper, Risen Energy’s research on the “development
and application of low-silver metallization paste” will be taken as an entry point
to explain the work and thoughts on enhancing efficiency and reducing cost in
metallization paste throughout its development of the HJT Hyper-ion products.
For example, what is the logic behind low-silver paste materials selection? How
is the reliability of low-silver paste determined? Will light, electricity, and
heat affect the performance of low-silver paste and how can this be determined?
Does the use of low-silver paste affect the reliability and power generation
performance of the modules? This white paper aims to provide clear explanations
for each of these questions.
If you want to know more about it, please check the link: