PV Solar Value Chain Integrated Solution
Solutions of Ingot/Wafer
This Solution adopts the Czochralski monocrystalline process to produce monocrystalline silicon rods, and the diamond wire multi-wire cutting process to produce monocrystalline silicon wafers. The whole line integrates MES and ERP systems, and the degree of informatization has reached the industry-leading level. The specific process route is as follows:
specific process route is as follows:
Solutions of PV Cell
Monocrystalline PERC solar cells (passivated emitter rear contact solar cells) are based on conventional cells by adding two processes of passivation of Al2O3 film on the back of the cell and laser contact opening, and the absolute conversion efficiency can be improved by 1.2- 1.5%, and the average conversion efficiency reaches 22.5-23%. This project adopts the process route of growing passivation layer by tube PECVD to prepare PERC cell. The process technology is mature with high market share.
The whole line can adopt AGV intelligent transmission, integrate MES and ERP system, and the degree of automation and informatization has reached the industry-leading level.
PERC monocrystalline solar cells, the average conversion efficiency reaches 22.8%, the yield rate is > 96%, and the calibration standard of solar cell: IEC60904. Reserved the space for upgrading TOPCon monocrystalline solar cells, and the technical parameters of monocrystalline PERC cells
The process flow of PERC cell is as follows:
- Texture: Decrease the reflection of incoming light
- Diffusion: Create P-N junction
- Laser SE: Create selective emitter
- Tube oxidation: Restore the oxidation layer in laser SE region
- Inline PSG remove: Remove the PSG on the edge and rear side
- Batch alkaline polishing: Polish the rear side
- PID annealing: Grow SiOx layer on the front side
- Rear side passivation: Passivation of the rear side with AlOx/SiON/SiN stack layers
- Front PECVD: Deposit the SiON/SiN stack layers as anti-reflection coating
- Laser Contact Opening: Localized opening of the rear side surface passivation stack layers
- Metallization & Fast Firing: Print and fire the front-side and rear-side metallization
- Anti-LID treatment: Anti LID treatment to reduce the degradation of PERC cell
- Testing & Sorting: I-V testing and sorting of the cells into different classes
AGV Solution for your production Halls
The AGV system combines various technologies such as AGV trolleys, mobile shelves, docking mechanisms, navigation systems, and intelligent scheduling systems to realize fully automated loading and unloading of workshop equipment and flexible distribution of materials in various processes, replacing manual labor and reducing costs for enterprises. Synergistic. The support of the AGV system realizes the automatic operation of the entire workshop line. The AGV body adopts a 360° laser anti-collision device and a deep self-learning task optimization algorithm, which enables it to have safe and efficient production capabilities. It can communicate with the workshop MES system to achieve full manufacturing. Process traceability. The AGV system is suitable for manufacturing workshops in PERC cell, 3C, automobile and other industries.
Passivated Emitter Rear Contact solar cells
PERC CELLS
PERC CELL INTRODUCTIONS
Monocrystalline PERC solar cells (passivated emitter rear contact solar cells) are based on conventional cells by adding two processes of passivation of Al2O3 film on the back of the cell and laser contact opening, and the absolute conversion efficiency can be improved by 1.2- 1.5%, and the average conversion efficiency reaches 22.5-23%. This project adopts the process route of growing passivation layer by tube PECVD to prepare PERC cell. The process technology is mature with high market share.
The whole line can adopt AGV intelligent transmission, integrate MES and ERP system, and the degree of automation and informatization has reached the industry-leading level.
Product Standards and Technical Indicators
Bipolar plates are coated to improve the electrical contact to the MEA. These are contact prints (bipolar plate to MEA) with a special coating method and subsequent inspection.
We are specialists in technology, production layout design, and supplying full manufacturing equipment
Intelligent factory
MES system through the sales orders, to material procurement, to production orders, material distribution and feeding until the product offline automatic labor and cost sharing, according to production batches, customers, cell cost, can timely and efficiently master the cost dynamics , to provide a basis for efficient decision-making.
Manufacturing Execution System
Intellegent PV manufacturing Plant
In PV manufacturing, intelligent logistics (ILD), informatization (MES) and intelligent warehousing (WMS) systems are combined into an intelligent manufacturing plant with the integral production line operating fully automatically, with modular design and multi-model configuration adopted to realize rapid customization service.
Management Dashboard
MES system through the sales orders, to material procurement, to production orders, material distribution and feeding until the product offline automatic labor and cost sharing, according to production batches, customers, cell cost, can timely and efficiently master the cost dynamics , to provide a basis for efficient decision-making.
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