US 12,071,558 B2
Photovoltaic module with increased resistance against potential induced degradation
Stefan Hellström, Stenungsund (SE); Francis Costa, Linz (AT); Bert Broeders, Beringen (BE); and Jeroen Oderkerk, Stenungsund (SE)
Assigned to BOREALIS AG, Vienna (AT)
Appl. No. 17/914,675
Filed by BOREALIS AG, Vienna (AT)
PCT Filed Mar. 8, 2021, PCT No. PCT/EP2021/055764
§ 371(c)(1), (2) Date Sep. 26, 2022,
PCT Pub. No. WO2021/197765, PCT Pub. Date Oct. 7, 2021.
Claims priority of application No. 20166955 (EP), filed on Mar. 31, 2020.
Prior Publication US 2023/0130603 A1, Apr. 27, 2023
Int. Cl. C09D 123/08 (2006.01); C08F 210/02 (2006.01); C08K 5/3492 (2006.01); C09D 7/63 (2018.01); H01L 31/048 (2014.01); H01L 31/049 (2014.01)
CPC C09D 123/0892 (2013.01) [C08F 210/02 (2013.01); C08K 5/34926 (2013.01); C09D 7/63 (2018.01); H01L 31/0481 (2013.01); H01L 31/049 (2014.12); C08F 2800/10 (2013.01); C08F 2800/20 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A photovoltaic module comprising a protective front layer element, an encapsulation layer element, a photovoltaic cell element and a protective back layer element,
whereby at least one of the protective elements comprises glass;
wherein the encapsulation layer element comprises a polymer composition (I) comprising at least the following components:
(A) 97.00 to 99.99 wt. % based on the overall weight of the polymer composition (I) of a polymer selected from an ethylene-vinylacetate copolymer, a polyolefin elastomer or a polymer of ethylene (a),
wherein the polymer of ethylene is selected from
(a1) a copolymer of ethylene which bears functional groups containing units;
(a2) a copolymer of ethylene comprising one or more polar comonomer unit(s) selected from (C1-C6)-alkyl acrylate or (C1-C6)-alkyl (C1-C6)-alkyl acrylate comonomer units, and optionally bears functional groups containing units different from said polar comonomer unit(s);
(a3) a copolymer of ethylene comprising one or more alpha-olefin comonomer unit(s); and optionally bears functional groups containing units different from said polar comonomer unit(s) of polymer (a2);
or mixtures thereof; and
(b) silane group(s) containing units;
(B) 0.01 to 3.00 wt. % based on the overall weight of the polymer composition (I) of a compound according to Formula (I);

OG Complex Work Unit Chemistry
wherein;
R1, R1′, R2 and R2′ are each independently selected from the group consisting of hydrogen, n-alkyl, iso-alkyl, alkoxy, cycloalkyl, alkenyl, halogen and mixtures thereof;
X is selected from the group consisting of primary amines, secondary amines, tertiary amines, hydrogen, alkyl, alkenyl and mixtures thereof.