The main function of the device significantly inhibits the light attenuation benefit of the single crystal silicon solar cell and improves the actual power generation efficiency of the battery.
It should be pointed out here that the initial light attenuation of the referred single crystal silicon cell or the corresponding component is due to the effect of the composite defect formed by the boron film and the oxygen impurity in the silicon wafer and not by other factors such as the component EVA and others. Caused by factors such as aging of materials.
The difference between the initial light attenuation effect and the attenuation of other factors is that the initial light attenuation effect is almost completely exhibited within 24 hours of exposure of the battery to the standard light intensity (1000 W/m2); the attenuation caused by other factors usually takes several months or It appeared slowly within a few years.
After processing by this device
1. Scope of application
The same machine can handle traditional single crystal single crystal traditional polycrystalline and polycrystalline batteries
2. Anti-light decay effect:
The conventional single crystal all-aluminum back battery can be made: the effect is 0.00-0.05% and the light decay rate is ≤1%;
Back passivation (PERC) single crystal battery: 0.00-0.05% 1% light decay rate ≤ 1%;
Polycrystalline all-aluminum back battery: the average efficiency is increased by 0.1% and the luminous rate is 1≤%;
Back passivation (PERC) polycrystalline battery: the average efficiency is increased by 0.1% or more and the light decay inhibition rate is 70% or more;
3. Capacity matching
Hourly capacity: ≥3000 monorail
≥6000 double track
4. Equipment reliability
Fragmentation rate ≤0.05% operating rate ≥98%
5. Accurate thermal field control
Good battery attenuation performance reducing component power loss
6. The number of single box lamination is small
Easier temperature control
The uniformity of heating of the cell in a single cavity is good for finding the optimal process conditions.
7. After the electric injection the cell has a good light decay consistency and the components are excluded from the dark and dark film.
Anti-light attenuation technology program comparison:
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|
Photothermal method |
Giant energy injection method |
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Capacity connection |
single-chip tunnel furnace offline/online |
equipment lamination processing offline/online equipment |
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Single crystal versatility |
can only handle single crystal polycrystalline effect is not large |
single / polycrystalline general ordinary / PERC universal |
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Processing gain |
No or slightly |
Traditional polycrystalline >+0.1%
PERC polycrystalline >+0.15%
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Anti-light decay performance |
Light decay rate <2% |
Light decay rate <1% consistency |
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Energy consumption |
High energy consumption 50-200KW |
Low energy consumption 10-20KW about 1/10 of the former |
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Consumables |
consumables such as lamps |
no other consumables except electricity and compressed air |
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Comprehensive use cos |
high cost |
low cost |
Anti-light decay effect-1:
巨能CIH技术使传统单晶／PERC单晶光衰率低于1%
Anti-light decay effect-2:
Anti-light decay effect-3:
Component end anti-light decay effect：
System side power generation comparison：
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