At present, most of the global silicon solar cells are using the traditional P-type standard process, P-type batteries still account for most of the market share, more than 85% of the city accounted for, The main reason is the production technology of polycrystalline silicon products and neighboring manufacturers supply chain settlement complete, predict the next 3-5 years is still the P-type products of the world,
But after the conversion efficiency of p-type battery reaches 22%, it is faced with the diminishing effect of marginal benefit of capital and technology investment, and the conversion efficiency is difficult to increase effectively. So solar manufacturers began to focus on the commercialization of the second generation of N-type solar cells, N-type products are also gradually stable growth, in 2017, many manufacturers announced the introduction of N-type cell components of the construction and production, including day care, June stone, Jin neng, solarfun, Yingli and so On. According to the New Energy Research center of the state consulting, Energytrend Advanced Technology report data show that the capacity of N-type battery has been limited to the increase of production capacity and technology of p-type perc Battery in the last two years, and the growth of 2018 ~2019 year is stagnant, even if the overall battery capacity increases, The N-type battery ratio still remains the Same.
In the next 3-5 years, the growth of n-type batteries is also slowly rising, gradually from the Single-digit city accounted for.
2017-2022 Solar cell Market Share forecast
N-type Battery with superior efficiency Main N-type silicon solar cells mainly include, HJT, IBC and N-pert/n-perl battery three major categories.
These three types are all with n-type crystalline silicon battery characteristics, such as: small sub-life, no light failure, good low light effect, but in HJT and IBC because of the greatest potential for increased efficiency, the highest Attention.
HJT battery is a distance to achieve large-scale production of the recent second-generation solar cell technology, its advantages not only in the energy conversion efficiency is high, but also in the process of simple, high-temperature power generation efficiency attenuation is small, can use thin silicon wafer, and Low module package loss, double-sided power generation and other advantages, become the most favored battery technology. The IBC battery, P-n Junction and electrodes are all placed on the back of the battery, eliminating the front grid line shading, increase conversion efficiency, can reach more than 23%. But its complex process, machine equipment investment, so that the cost of almost twice times more than the traditional battery, so how to reduce the cost of IBC manufacturing, is the focus of the current Development.
There are also labs that have developed a battery that combines the hjt+ IBC two structure and achieved 25.6% of the World's highest efficiency, the highest possible efficiency for crystalline silicon solar Cells.
The third kind of battery n-pert/n-perl structure is simple, the maximum degree of retention and use of the existing traditional P-type battery equipment process, The minimum amount of production difficulties, but the conversion efficiency without the previous two kinds of battery high.
N-type Battery capacity ratio prediction Energytrend points out that with the new structure of ibc, HJT and other batteries, the efficiency advantage of n-type monocrystalline cells will become more and more obvious, and the market share will increase gradually. And with the laser, ion implantation and other technologies of mass production, HJT solar cells will be expected to reach nearly 10% market share in 2022, IBC back contact type up to 4.6%.
and the traditional P-type battery market share rate will be reduced year-over.
2018 Global Top Ten N-type cell production capacity Forecast The first sunpower of the IBC Battery has been the industry leader, although the early 2018 SunPower announced the transfer of investment P-type product line; For IBC products are still committed to high-efficiency breakthroughs, has now been imported 6-inch silicon wafer production as the main product, the expected efficiency of battery conversion to exceed 26% Targets. The second Lge maintains the development of a small number of product lines, the overall N-type product line except HJT (200MW); Also covers the capacity of N-pert (600MW) and IBC (600MW). The third is day care photovoltaic, Day Care main development MWt products, whether applied to P-type or n-type; Day care as a flexible use of technology choice, the market is currently seen MWT products are made for day care; Including Su Mei Dahuren is also the use of day-care OEM products, in the future for the third batch of 2018 leaders plan to use MW products; is indeed a specific trend of leadership.
The fourth Panasonic and the fifth June (gs Solar) are HJT battery manufacturers, June Stone plans to produce high-performance double-sided heterogeneous junction (HDT) components to improve the best output of N-type Products. Constant pursuit of efficiency and cost reduction, is the eternal theme of the photovoltaic Industry. With the market demand for efficiency and quality more and more high, single crystal N-type batteries due to their natural advantages, will inevitably become the direction of the market Chase.