IP Library Patent Application 15325567
Patent Application
App. No. 15/325,567

SOLAR PANEL AND METHOD OF MANUFACTURING SUCH A SOLAR PANEL

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Quick Facts
Patent No.
US None
App. No.
15/325,567
Abstract

A solar panel ( 1 ) includes: a plurality of semiconductor substrate based solar cells ( 2 ), a transparent front side plate ( 4 ), and a rear side plate ( 6 ). The transparent front side plate ( 4 ) is stacked on top of the rear side plate ( 6 ) and the plurality of solar cells ( 2 ) are arranged in an array in between the rear side ( 6 ) plate and the front side plate ( 4 ). Each solar cell ( 2 ) has a light receiving surface facing ( 8 ) towards the front side plate ( 4 ); the solar cells ( 2 ) being embedded in an encapsulant layer ( 10 ) between the front side plate ( 4 ) and the rear side plate ( 6 ), wherein the solar panel includes an internal light redirection unit ( 12; 20 ) for guiding light received on the solar panel ( 1 ) but not captured by the solar cells ( 2 ), towards the solar cells ( 2 ).

Claims (36)

1 - 16 . (canceled)

17 . Solar panel ( 1 ) for receiving light from a radiation source comprising a plurality of semiconductor substrate based solar cells ( 2 ), a transparent front side plate ( 4 ), and a rear side plate ( 6 );

the transparent front side plate ( 4 ) being stacked on top of the rear side plate ( 6 ); the plurality of solar cells ( 2 ) being arranged in an array in between the rear side ( 6 ) plate and the front side plate ( 4 ), each solar cell ( 2 ) having a light receiving surface facing ( 8 ) towards the front side plate ( 4 );

the solar cells ( 2 ) being embedded in an encapsulant layer ( 10 ) between the front side plate ( 4 ) and the rear side plate ( 6 ), wherein

the solar panel comprises between the front side plate and the rear side plate internal light redirection means ( 12 ;

20 ) for guiding light received on the solar panel ( 1 ) but not captured by the solar cells ( 2 ), towards the solar cells ( 2 ),

wherein the solar panel further comprises a frame ( 14 ) or an edge and the solar cells ( 2 ) are placed at predetermined positions (d 1 , d 2 ) relative to each other with a first intermediate area (IA) between each two adjacent solar cells ( 2 ) and a second intermediate area (IB) between the frame ( 14 ) or edge and each solar cell ( 2 ) adjacent to the frame ( 14 ) or the edge, and optionally with a third intermediate area (IC) defined by an intermediate cross section area of adjacent rows and adjacent columns of solar cells ( 2 ) in the array arrangement,

wherein the internal light redirection means of the solar panel ( 1 )is a light scattering area ( 12 ) for scattering light towards the solar cells ( 2 ); the light scattering area ( 12 ) corresponding substantially with a location of either the first intermediate area (IA), the second intermediate area (IB), the third intermediate area (IC), or a combination thereof, and

wherein the light scattering area ( 12 ) is a light scattering layer arranged for scattering at least a portion of light originating from the radiation source, and the light scattering layer is applied to the front side glass plate between the front side glass plate ( 4 ) and the encapsulant layer ( 10 ) that embeds the solar cells ( 2 ) in the solar panel ( 1 ).

18 . The solar panel according to claim 17 , wherein the light scattering area ( 12 ) is arranged for scattering at least a portion of light originating from the radiation source.

19 . The solar panel according to claim 17 , wherein the light scattering area ( 12 ) is a colored light scattering layer, arranged for absorbing visible light portion from the radiation source and for scattering at least a portion of light originating from the radiation source, the portion of light being in the (near) infrared range of the spectrum.

20 . The solar panel according to claim 17 , wherein the light scattering layer comprises a substance having light scattering particles therein.

21 . The solar panel according to claim 17 , wherein the light scattering layer is embodied by a patterned foil with openings ( 18 ), each with a size corresponding with the size of a solar cell ( 2 ) and the pattern of openings ( 18 ) corresponding with the positions of the solar cells ( 2 ) in the array.

22 . The solar panel according to claim 21 , wherein the patterned foil comprises a polymer with a melting point higher than a lamination temperature required in the manufacturing of the solar panel.

23 . The solar panel according to claim 20 , wherein the substance is a paint or an ink.

24 . The solar panel according to claim 20 , wherein the light scattering layer is one selected from a group comprising a paint or ink layer, a sticker, a foil, a gasket, a tape, or a laminated sheet that comprises the substance having light scattering particles therein.

25 . The solar panel according to claim 17 , wherein the rear side plate ( 6 ) is transparent to light.

26 . The solar panel according to claim 25 , wherein the solar cells ( 2 ) are bifacial solar cells.

27 . The solar panel according to claim 17 , wherein the solar cells ( 2 ) are interconnected in the array by tab connections ( 28 ) or bussings.

28 . The solar panel according to claim 27 , wherein the tab connections ( 28 ) and/or bussings are covered by the light scattering area ( 12 ) in a direction towards at least one of the front side plate ( 4 ) and the rear side plate.

29 . Solar panel ( 1 ) for receiving light from a radiation source comprising a plurality of semiconductor substrate based solar cells ( 2 ), a transparent front side plate ( 4 ), and a rear side plate ( 6 );

the transparent front side plate ( 4 ) being stacked on top of the rear side plate ( 6 ); the plurality of solar cells ( 2 ) being arranged in an array in between the rear side ( 6 ) plate and the front side plate ( 4 ), each solar cell ( 2 ) having a light receiving surface facing ( 8 ) towards the front side plate ( 4 );

the solar cells ( 2 ) being embedded in an encapsulant layer ( 10 ) between the front side plate ( 4 ) and the rear side plate ( 6 ), wherein

the solar panel comprises between the front side plate and the rear side plate internal light redirection means ( 12 ; 20 ) for guiding light received on the solar panel ( 1 ) but not captured by the solar cells ( 2 ), towards the solar cells ( 2 ),

wherein the solar panel further comprises a frame ( 14 ) or an edge and the solar cells ( 2 ) are placed at predetermined positions (d 1 , d 2 ) relative to each other with a first intermediate area (IA) between each two adjacent solar cells ( 2 ) and a second intermediate area (IB) between the frame ( 14 ) or edge and each solar cell ( 2 ) adjacent to the frame ( 14 ) or the edge, and optionally with a third intermediate area (IC) defined by an intermediate cross section area of adjacent rows and adjacent columns of solar cells ( 2 ) in the array arrangement,

wherein the internal light redirection means of the solar panel ( 1 )is a light scattering area ( 12 ) for scattering light towards the solar cells ( 2 ); the light scattering area ( 12 ) corresponding substantially with a location of either the first intermediate area (IA), the second intermediate area (IB), the third intermediate area (IC), or a combination thereof, and

wherein the light scattering area ( 12 ) is a coloured light scattering layer arranged for scattering at least a portion of light originating from the radiation source, the portion of light being in the (near) infrared range of the spectrum,

and the light scattering layer is embodied by a patterned foil with openings ( 18 ), each with a size corresponding with the size of a solar cell ( 2 ) and the pattern of openings ( 18 ) corresponding with the positions of the solar cells ( 2 ) in the array,

and the patterned foil comprises a polymer with a melting point higher than a lamination temperature required in the manufacturing of the solar panel.

30 . Method for manufacturing a solar panel ( 1 ) comprising:

providing a transparent front plate ( 4 ) and a rear plate ( 6 );

providing a plurality of solar cells ( 2 ), each being based on a semiconductor substrate and capable of generating photoelectricity from captured radiation energy;

arranging the solar cells in between the transparent front side plate and rear side plate, the solar cells being arranged in an array in between the rear side ( 6 ) plate and the front side plate ( 4 ), each solar cell ( 2 ) having a light receiving surface facing ( 8 ) towards the front side plate ( 4 ),

and the solar cells being embedded in an encapsulant layer ( 10 ) between the front side plate and the rear side plate;

and arranging in the solar panel between the front side plate and the rear side plate internal light redirection means ( 12 ; 20 ) for guiding light received on the solar panel ( 1 ) but not captured by the solar cells ( 2 ), towards the solar cells ( 2 ), wherein the solar panel further comprises a frame ( 14 ) or an edge and the solar cells ( 2 ) are placed at predetermined positions (d 1 , d 2 ) relative to each other with a first intermediate area (IA) between each two adjacent solar cells ( 2 ) and a second intermediate area (IB) between the frame ( 14 ) or edge and each solar cell ( 2 ) adjacent to the frame ( 14 ) or the edge, and optionally with a third intermediate area (IC) defined by an intermediate cross section area of adjacent rows and adjacent columns of solar cells ( 2 ) in the array arrangement,

wherein the internal light redirection means of the solar panel ( 1 ) is a light scattering area ( 12 ) for scattering light towards the solar cells ( 2 ); the light scattering area ( 12 ) corresponding substantially with a location of either the first intermediate area (IA), the second intermediate area (IB), the third intermediate area (IC), or a combination thereof, and the light scattering layer is applied to the front side plate, between the front side plate ( 4 ) and the encapsulant layer ( 10 ) that embeds the solar cells ( 2 ) in the solar panel ( 1 ).

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 4, 2019
From: STICHTING ENERGIEONDERZOEK CENTRUM NEDERLAND
To: NEDERLANDSE ORGANISATIE VOOR TOEGEPAST-NATUURWETENSCHAPPELIJK ONDERZOEK TNO
Reel/Frame 050257/0519 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 21, 2017
From: VAN ROOSMALEN, JOHANNES ADRIANUS MARIA; BENNETT, IAN JOHN; BENDE, EVERT EUGENE
To: STICHTING ENERGIEONDERZOEK CENTRUM NEDERLAND
Reel/Frame 043059/0948 →