JP2014165504A - 太陽電池モジュール - Google Patents
太陽電池モジュール Download PDFInfo
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Abstract
【解決手段】本発明の太陽電池モジュールは、基板と、基板の後面に位置し、第1方向に沿って第1間隔で離隔された複数の島(island)型後面電極用集電部と後面電極用集電部を露出する開口部を含み、基板の後面全体を覆うシート(sheet)状の後面電極を備えた後面電極部を含む太陽電池と隣接した太陽電池を電気的に接続するインターコネクタ、及びインターコネクタを太陽電池に接合する導電性接着フィルムを含み、後面電極用集電部と後面電極は、互いに異なる金属物質から形成され、導電性接着フィルムは、後面電極用集電部と接触する第1部分と後面電極と接触する第2部分を第1方向に沿って交互に備える。
【選択図】図4
Description
Claims (17)
- 基板と基板の後面に位置し、第1方向に沿って第1間隔で離隔された複数の島型後面電極用集電部と、前記後面電極用集電部を露出する開口部を含み、前記基板の後面全体を覆うシート(sheet)状の後面電極を備えた後面電極部を含む太陽電池と、
隣接した太陽電池を電気的に接続するインターコネクタと、
前記インターコネクタを前記太陽電池に接合する導電性粘着フィルム
を含み、
前記後面電極用集電部と前記後面電極は、互いに異なる金属物質から形成され、
前記導電性接着フィルムは、前記後面電極用集電部と接触する第1部分と前記後面電極と接触する第2部分を前記第1方向に沿って交互に備える太陽電池モジュール。 - 前記後面電極と前記後面電極用集電部は、前記開口部の端部分で互に重畳しない、請求項1記載の太陽電池モジュール。
- 前記後面電極の厚さと、前記後面電極用集電部の厚さの差が5μm〜25μmである、請求項2記載の太陽電池モジュール。
- 前記導電性接着フィルムの前記第1部分の厚さが前記第2部分の厚さより厚く形成される、請求項3記載の太陽電池モジュール。
- 前記第1部分の厚さと、前記第2部分の厚さの差が5μm〜25μmである、請求項4記載の太陽電池モジュール。
- 前記導電性接着フィルムは、前記第1方向と直交する第2方向に前記第1部分の少なくとも一方において、前記後面電極と接触する第3部分をさらに含む、請求項2記載の太陽電池モジュール。
- 前記後面電極と前記後面電極用集電部は、前記開口部の端部分で互いに重畳する、請求項1記載の太陽電池モジュール。
- 前記後面電極の厚さと、前記後面電極用集電部の厚さの差が5μm〜25μmである、請求項7記載の太陽電池モジュール。
- 前記導電性接着フィルムの前記第1部分の厚さが前記第2部分の厚さより厚く形成される、請求項8記載の太陽電池モジュール。
- 前記第1部分の厚さと、前記第2部分の厚さの差が5μm〜25μmである、請求項9記載の太陽電池モジュール。
- 前記複数の太陽電池の各々は、基板の後面内側に位置する後面電界部をさらに含む、請求項1記載の太陽電池モジュール。
- 前記後面電界部は、前記後面電極が位置する領域にのみ形成され、前記開口部が位置する領域には形成されない、請求項11記載の太陽電池モジュール。
- 前記後面電界部は、前記後面電極が位置する領域と、前記開口部が位置する領域に形成される、請求項11記載の太陽電池モジュール。
- 前記導電性接着フィルムは、樹脂と、前記樹脂内に分散された複数の導電性粒子を含み、前記複数の導電性粒子は、前記後面電極と後面電極用集電部のいずれか、及びインターコネクタとそれぞれ直接接触する、請求項11記載の太陽電池モジュール。
- 前記複数の太陽電池の各々は、前記基板の前面全体に位置するエミッタ部、前記エミッタ部と電気的に接続される前面電極部と、前記エミッタ部の上に位置する誘電層をさらに含み、
前記前面電極部は、前記第1方向と直交する第2方向に長く延長され下部面全体が前記のエミッタ部と直接接触する複数のフィンガー電極を含む、請求項11記載の太陽電池モジュール。 - 前記前面電極部は、前記第1方向に延長され、前記複数のフィンガー電極と接続された前面電極用集電部をさらに含み、前記前面電極用集電部の下部面全体は、前記エミッタ部と直接接触する、請求項15記載の太陽電池モジュール。
- 前記複数の開口部は、複数の後面電極用集電部にそれぞれ対応する、請求項1記載の太陽電池モジュール。
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