JP2019220709A - 太陽電池モジュールおよび太陽電池セルの製造方法 - Google Patents
太陽電池モジュールおよび太陽電池セルの製造方法 Download PDFInfo
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Abstract
Description
本発明を具体的に説明する前に、概要を述べる。本発明の実施例1は、複数の太陽電池セルが接続されることによって構成される太陽電池モジュールに関する。実施例1に係る太陽電池モジュールは、裏面接合型の太陽電池セルを使用する。裏面接合型の太陽電池セルでは、光が入射する受光面に対向する裏面に、互いに間挿し合っている一対の櫛歯状の電極が配置される。この太陽電池セルの電極は、互いに導電性の異なった第1電極と第2電極に分類される。複数の太陽電池セルを接続する場合、所定の太陽電池セルの第1電極と、これに隣接した太陽電池セルの第2電極とが配線材によって接続される。配線材の数は、太陽電池モジュールに含まれる太陽電池セルの数が増加するほど多く必要になる。太陽電池モジュールの構成の簡易化、コストの低減を目的とする場合、配線材は含まれない方が望ましい。
次に、実施例2を説明する。実施例2は、実施例1と同様に、複数の太陽電池セルが接続されることによって構成される太陽電池モジュールに関する。実施例1では、裏面接合型の太陽電池セルが使用されているが、実施例2では、受光面側にも裏面側にも電極が設けられた太陽電池セルが使用される。つまり、実施例1における第1電極と第2電極が、受光面と裏面に分けられて配置される。また、複数の太陽電池セルを接続する場合、所定の太陽電池セルの第1電極と、これに隣接した太陽電池セルの第2電極とが配線材によって接続される。配線材の数は、太陽電池モジュールに含まれる太陽電池セルの数が増加するほど多く必要になる。太陽電池モジュールの構成の簡易化、コストの低減を目的とする場合、配線材は含まれない方が望ましい。
Claims (7)
- 互いに電気的に接続された複数の太陽電池セルを備え、
前記複数の太陽電池セルのうちの少なくとも1つは、
半導体基板と、
前記半導体基板の主面上に配置される第1導電型領域と、
前記半導体基板の主面上に配置される第2導電型領域と、
前記第1導電型領域上に配置される複数の第1集電極と、
前記第1導電型領域上に配置され、かつ前記複数の第1集電極に接続される第2集電極と、を備え、
前記第2集電極は、前記第2導電型領域上には形成されず、隣接した別の太陽電池セルの方に向かって前記半導体基板から延出することを特徴とする太陽電池モジュール。 - 前記太陽電池セルは裏面接合型の太陽電池セルであって、前記半導体基板において、前記第1集電極および前記第2集電極が配置される主面とは反対側の主面上には、集電極が配置されないことを特徴とする請求項1に記載の太陽電池モジュール。
- 前記半導体基板において、前記第1集電極および前記第2集電極が配置される主面とは反対側の主面上に配置される集電極は、前記半導体基板から延出されないことを特徴とする請求項1に記載の太陽電池モジュール。
- 前記第1集電極は、隣接した別の太陽電池セルと重畳する領域で、隣接した別の太陽電池に接着剤を用いて接着される請求項2または3に記載の太陽電池モジュール。
- 半導体基板を準備するステップと、
前記半導体基板の第1主面上に、第1導電型領域と第2導電型領域とを形成するステップと、
前記第1導電型領域上に配置されるとともに、前記半導体基板から延出する集電極をめっき法によって形成するステップとを備え、
前記形成するステップにおいて、前記集電極は、前記第2導電型領域上には形成されないことを特徴とする太陽電池セルの製造方法。 - 前記準備するステップは、最終的な半導体基板の主面のサイズよりも大きなサイズの主面を有する準備用の半導体基板を準備し、
前記形成するステップは、
前記準備用の半導体基板の主面上に前記集電極をめっき法によって形成するステップと、
前記最終的な半導体基板の主面のサイズとなるように、前記準備用の半導体基板の一部を切断するステップとを備えることを特徴とする請求項5に記載の太陽電池セルの製造方法。 - 前記準備するステップは、前記半導体基板の主面と補助シートの主面とを合わせながら、前記半導体基板に前記補助シートを並べ、
前記形成するステップは、
前記半導体基板の主面上と前記補助シートの主面上とに前記集電極をめっき法によって形成するステップと、
前記半導体基板から前記補助シートを取り除くステップとを備えることを特徴とする請求項5に記載の太陽電池セルの製造方法。
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Citations (3)
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US4361950A (en) * | 1980-03-24 | 1982-12-07 | Exxon Research & Engineering Co. | Method of making solar cell with wrap-around electrode |
JP2010283408A (ja) * | 2010-09-30 | 2010-12-16 | Sanyo Electric Co Ltd | 太陽電池 |
JP2011108969A (ja) * | 2009-11-20 | 2011-06-02 | Hitachi Cable Ltd | 太陽電池モジュールの製造方法、及び太陽電池用配線基板 |
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US20050022857A1 (en) * | 2003-08-01 | 2005-02-03 | Daroczi Shandor G. | Solar cell interconnect structure |
WO2008080160A1 (en) * | 2006-12-22 | 2008-07-03 | Advent Solar, Inc. | Interconnect technologies for back contact solar cells and modules |
JP5252472B2 (ja) * | 2007-09-28 | 2013-07-31 | シャープ株式会社 | 太陽電池、太陽電池の製造方法、太陽電池モジュールの製造方法および太陽電池モジュール |
JP2009130116A (ja) * | 2007-11-22 | 2009-06-11 | Sharp Corp | 素子間配線部材、光電変換素子およびこれらを用いた光電変換素子接続体ならびに光電変換モジュール |
JP5306352B2 (ja) * | 2008-08-22 | 2013-10-02 | 三洋電機株式会社 | 太陽電池モジュール、太陽電池及び太陽電池モジュールの製造方法 |
US20140332072A1 (en) * | 2011-12-13 | 2014-11-13 | Dow Corning Corporation | Photovoltaic Cell And Method Of Forming The Same |
JP6141223B2 (ja) * | 2013-06-14 | 2017-06-07 | 三菱電機株式会社 | 受光素子モジュールおよびその製造方法 |
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2016
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- 2016-08-10 JP JP2017542687A patent/JP6590165B2/ja not_active Expired - Fee Related
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2018
- 2018-03-27 US US15/937,273 patent/US20180219116A1/en not_active Abandoned
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- 2019-09-03 JP JP2019160299A patent/JP2019220709A/ja active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4361950A (en) * | 1980-03-24 | 1982-12-07 | Exxon Research & Engineering Co. | Method of making solar cell with wrap-around electrode |
JP2011108969A (ja) * | 2009-11-20 | 2011-06-02 | Hitachi Cable Ltd | 太陽電池モジュールの製造方法、及び太陽電池用配線基板 |
JP2010283408A (ja) * | 2010-09-30 | 2010-12-16 | Sanyo Electric Co Ltd | 太陽電池 |
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JP6590165B2 (ja) | 2019-10-16 |
WO2017056371A1 (ja) | 2017-04-06 |
JPWO2017056371A1 (ja) | 2018-06-21 |
US20180219116A1 (en) | 2018-08-02 |
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