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EP0536738A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Solar cell module with improved weathering characteristics

Assignee: Canon Inc
•
Filing: 1992-10-08
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Granted: —
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Expires: 2012-10-08
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Abstract

Abstract An improved solar cell characterized in that the grid electrode has a coat comprising an epoxy resin of 20 g/m².day.0.1 mm/40 °C 90%RH or less in moisture permeability which is disposed so as to cover the entire exposed exterior of said grid electrode. The solar cell module is free of occurrence of shortcircuit between the grid electrode and the lower electrode even upon repeated use under severe environmental conditions of high temperature and high humidity, and continuously exhibits a desirable photoelectric conversion efficiency over a long period of time.

Inventors

  • 👤 Yuji c/o Canon Kabushiki Kaisha Inoue

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-06 18:21
CPC Classifications
H; H10; H10F; H10F19/00; H10F19/80; H10F19/30; H10F19/90; H10F19/902; H10F77/00; H10F77/20; H10F77/206; H10F77/211; H10F77/30; H10F77/306; H10F77/311; H10F77/40; H10F77/42; Y; Y02; Y02E; Y02E10/00; Y02E10/50; Y02E10/52; Y02E10/547; Y02E10/548

Claims Analysis

Total Claims: 16
Claim 1
Independent Claim 109 words
In a solar cell module which comprises an element body comprising an amorphous silicon solar cell element enclosed by a filler, said amorphous silicon solar cell element comprising a metal electrode layer, an amorphous silicon semiconductor layer having a pin junction, a transparent and conductive layer and a grid electrode being disposed in this order on a conductive substrate, said element body being disposed on a base member, the improvement characterized in that said grid electrode has a coat comprising an epoxy resin of 20 g/m².day.0.1 mm/40 °C 90%RH or less in moisture permeability which is disposed so as to cover the entire exposed exterior of said grid electrode.
Claim 2
Dependent Claim 37 words
A solar cell module according to claim 1, wherein the epoxy resin is a member selected from the group consisting of bisphenol A epoxy resin, bisphenol F epoxy resin, cycloaliphatic epoxy resin, and phenol novolak epoxy resin.
Claim 3
Dependent Claim 17 words
A solar cell module according to claim 1, wherein the filler comprises a light transmissive, insulating resin.
Claim 4
Dependent Claim 31 words
A solar cell module according to claim 3, wherein the light transmissive, insulating resin is a member selected from the group consisting of ethylene-vinyl acetate copolymer, polyvinyl butyral and silicone resin.
Claim 5
Dependent Claim 23 words
A solar cell module according to claim 1, wherein the coat is of a thickness in the range of 10 to 200 µm.
Claim 6
Dependent Claim 37 words
A solar cell module according to claim 5, wherein the epoxy resin is a member selected from the group consisting of bisphenol A epoxy resin, bisphenol F epoxy resin, cycloaliphatic epoxy resin, and phenol novolak epoxy resin.
Claim 7
Dependent Claim 17 words
A solar cell module according to claim 5, wherein the filler comprises a light transmissive, insulating resin.
Claim 8
Dependent Claim 31 words
A solar cell module according to claim 7, wherein the light transmissive, insulating resin is a member selected from the group consisting of ethylene-vinyl acetate copolymer, polyvinyl butyral and silicone resin.
Claim 9
Dependent Claim 133 words
In a solar cell module which comprises an element body comprising a plurality of amorphous silicon solar cell elements being integrated in series connection and being enclosed by a filler, each of said plurality of amorphous silicon solar cell elements comprising a metal electrode layer, an amorphous silicon semiconductor layer having a pin junction, a transparent and conductive layer and a grid electrode being disposed in this order on a conductive substrate, said element body being disposed on a base member, the improvement characterized in that said grid electrode of each of said plurality of amorphous silicon solar cell elements has a coat comprising an epoxy resin of 20 g/m².day.0.1 mm/40 °C 90%RH or less in moisture permeability which is disposed so as to cover the entire exposed exterior of said grid electrode.
Claim 10
Dependent Claim 37 words
A solar cell module according to claim 9, wherein the epoxy resin is a member selected from the group consisting of bisphenol A epoxy resin, bisphenol F epoxy resin, cycloaliphatic epoxy resin, and phenol novolak epoxy resin.
Claim 11
Dependent Claim 17 words
A solar cell module according to claim 9, wherein the filler comprises a light transmissive, insulating resin.
Claim 12
Dependent Claim 31 words
A solar cell module according to claim 11, wherein the light transmissive, insulating resin is a member selected from the group consisting of ethylene-vinyl acetate copolymer, polyvinyl butyral and silicone resin.
Claim 13
Dependent Claim 23 words
A solar cell module according to claim 9, wherein the coat is of a thickness in the range of 10 to 200 µm.
Claim 14
Dependent Claim 37 words
A solar cell module according to claim 13, wherein the epoxy resin is a member selected from the group consisting of bisphenol A epoxy resin, bisphenol F epoxy resin, cycloaliphatic epoxy resin, and phenol novolak epoxy resin.
Claim 15
Dependent Claim 17 words
A solar cell module according to claim 13, wherein the filler comprises a light transmissive, insulating resin.
Claim 16
Dependent Claim 31 words
A solar cell module according to claim 15, wherein the light transmissive, insulating resin is a member selected from the group consisting of ethylene-vinyl acetate copolymer, polyvinyl butyral and silicone resin.

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