PERC PV Cells and Components
The new technology of PERC passivation film effectively reduces the back surface load, increases the open circuit voltage, increases the back surface reflection, and improves the short circuit current, thus improving the battery efficiency. The emergence of PERC double-sided batteries has once again enhanced the competitiveness of PERC batteries. At present, the double-sided rate of the double-sided PERC battery is about 75%, and the double-sided PERC battery not only broadens the application scenario of the PERC battery, but also can obtain higher power generation gain. The generation of a large number of PERC double-sided module power generation projects is collected and compared to improve the generation gain of 5-46% (tracking) in different generation seasons, different climate zones and different backing surfaces.
Higher energy conversion rate of up to 24.5%
Effectively reduce the BOS cost of the system, lower KWH cost, improve the project yield，lower first year and year by year decay value, 30 years warranty，compatibility with higher ROI.
The maximum power is increased to 670W. 210mm-large silicon chip technology, and the triple-piece component technology efficiency is increased to 21.0%. The multi-main gate (MBB) technology effectively improve the optical utilization and reduce the internal current loss.
High reliability
Non-destructive cutting technology to reduce the risk of hidden cracks. Resistant to salt spray ammonia dust, adapt to high temperature and humidity and other environments through the third party test, while passed the mechanical load test of 5400pa on the front and 2400pa on the back.
High electrical performance
Excellent IAM and low light response performance verified by the third party
Lower temperature coefficient (-0.34%) and lower operating temperature result in more power generation. The unique version design brings stronger resistance to shadow occlusion. Double side power generation, depending on the installation environment, the back power generation can be increased by up to 25%.
Parameters of PERC Batteries
High Efficiency｜High reliability ｜High Power generation ｜ Double-sided double-measure double-grade
- Size:182mm×182mm（diameter 247±0.5mm）/ 210mm×210mm（diameter 295±0.25mm）/
- thickness：160±20μm
- Model:182mm 10BB double-sided high efficiency single crystal PERC battery
- Front (−): silicon dioxide + blue silicon nitride composite anti-reflection film (PID Free); The front graphic is half piece design; The main grid head is a large double fork, the main grid. The pad is intermittent step, the head pad size is 1.2 ±0.15mm* 1.3± 0.15mm, the middle pad size is 0.8±0.15mm*1±0.15mm.
- Back (+) : passivation composite layer (alumina and silicon nitride); The back electrode is composed of 10 back composite main grid lines and 160 back Al secondary grid lines. Composite main grid. The lines were narrowed locally with widths of 1.5±0.3mm and 1.0±0.3mm, respectively. 8 section 1.45±0.3mm Ag back electrode, no laser slot under the back electrode,
- Back electrode round head with 1.5±0.6mm holloway at both ends Model 2:210mm 12BB double-sided high efficiency single crystal PERC battery.
- Front (-) : silica plus silicon nitride blue composite anti-reflection film (PID Free); Half piece design, main grid 12, secondary grid 120-180; Main gate width is 0.06±0.02mm, two sections of the main grid, two large double forks design, a single main grid 4 large double forks, large double forks size (1.7±0.1mm) × (6.4±0.1)mm, there are 14 solder joints at the connection between the main grid and the fine grid, and the solder joints are (1.5±0.15) mm× (0.9±0.15) mm.
- Back (+) : alumina and silicon nitride composite layer; The back electrode is composed of 12 rear composite main grid lines and 150-250 Al grid lines. 8-stage formula 1.9±0.2mm Ag electrode. Model 3:210mm 9BB double-sided high efficiency single crystal PERC battery.
- Front (-) : silica plus silicon nitride blue composite anti-reflection film (PID Free); Three segment design, main grid 9, sub-grid 120-180; Main grid Width 0.06±0.02mm, main grid three segments, two large double fork design, single main grid 6 large double fork, large double fork size (1.5±0.1mm) × (7.2±0.1) mm, there are 12 solder joints at the connection between the main grid and the fine grid, and the solder joints are (1.5±0.15) mm× (1.0±0.15) mm.
- Back (+) : alumina and silicon nitride composite layer; The back electrode is composed of 9 rear composite main grid lines and 150-250 Al grid lines. Nine segments 1.8±0.2mm Ag electrode.
Full area controlled by light/all silicon power generation/all back electrode/all back passivation contact/all silver free metallization/full life cycle heat spot risk
- Research N-type technical barriers, completely independent property rights, relying on R&D Center to develop self-developed core equipment and mass production process, with complete independent intellectual property rights.
- Historical technological breakthrough in silver-free metallization ABC non-silver technology can greatly reduce the grid break problem of crystalline silicon cells and avoids silver wires while ensuring power generation Life affects the lifetime of a component.
- Revolutionary N-type full back contact battery products. The front is shielded by no metal grid line, 100% receives sunlight, and has excellent light decay resistance and mechanical load performance; Low temperature coefficient, higher temperature resistance, high efficiency, high appearance level.
- There are broad prospects for technological development. In the future, ABC can be superimposed with perovskite, copper bonded selenium, cadmium sulfide, thin film solar cells and other technologies.
