Solar cell modules and solar cell arrays
The solar cell module addresses bubble-related efficiency loss by using protective members with controlled water vapor transmission and gel fractions, enhancing durability and power generation stability.
JP7865436B1Active Publication Date: 2026-05-26DAI NIPPON PRINTING CO LTD
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Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- DAI NIPPON PRINTING CO LTD
- Filing Date
- 2025-08-12
- Publication Date
- 2026-05-26
AI Technical Summary
Technical Problem
Conventional solar cell modules using protective members with high water vapor barrier properties suffer from air bubble accumulation, leading to peeling and reduced power generation efficiency due to moisture permeation, especially under humid and heat resistance tests.
Method used
A solar cell module design with specific water vapor transmission rates and gel fractions for protective members, along with controlled crosslinking agents and outgassing, to prevent bubble accumulation and maintain efficiency.
Benefits of technology
The design effectively suppresses swelling and maintains power generation efficiency by preventing water vapor permeation and outgassing, ensuring durability in harsh environments.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure 0007865436000001_ABST
Abstract
The present invention provides a solar cell module that can suppress a decrease in power generation efficiency and blistering when using a protective material with high water vapor barrier properties. [Solution] This disclosure relates to a solar cell module in which a surface protective member, a surface sealing layer, a solar cell element, a back sealing layer, and a back protective member are laminated in this order, wherein at least one of the surface protective member and the back protective member has a water vapor transmission rate of 1.0 × 10 -4 g / (m 2 ·day) or more, 1.0g / (m 2 The present invention provides a solar cell module that is a barrier protective member of the following type (day) or less, wherein the gel fraction of the surface sealing material layer and the back sealing material layer are each 40% or less.
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