JP6185449B2 - 太陽電池及びその製造方法 - Google Patents
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
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- Y02E10/547—Monocrystalline silicon PV cells
Description
121 エミッタ部
130 反射防止膜
172 背面電界部
200 絶縁性部材
C141 第1電極
C142 第2電極
ECA 導電性接着剤
ECA−CP 導電性金属粒子
ECA−P 導電性接着剤ペースト
IC インターコネクタ
IL 絶縁層
IL−P 絶縁層ペースト
P141 第1補助電極
P142 第2補助電極
PP141 第1パッド部
PP142 第2パッド部
Claims (15)
- 半導体基板、前記半導体基板の背面に互いに離隔されて形成される複数の第1電極と複数の第2電極、前記複数の第1電極と絶縁性樹脂層内に含まれる導電性金属粒子を含む電極接続材によって互いに接続され、接続される第1補助電極、前記複数の第2電極と絶縁性の樹脂層内に含まれる導電性金属粒子を含む電極接続材によって互いに接続され、接続される第2補助電極、及び前記第1、第2電極との間の離隔された空間に位置し、樹脂材質で形成された絶縁層を含む太陽電池と、
前記複数の太陽電池を接続するために、前記複数の太陽電池の中で互いに隣接した第1、第2太陽電池との間に位置し、前記第1太陽電池の第1補助電極と前記第2太陽電池の第2補助電極を互いに電気的に接続するインターコネクタとを含み、
前記電極接続材は、絶縁性の樹脂層内に含まれる導電性金属粒子を含み、
前記電極接続材に含まれる樹脂層と、前記絶縁層は、同じ樹脂材質を含み、
前記第1、第2補助電極は、前記第1、第2太陽電池との間の離隔された空間まで延長されて形成され、
前記第1補助電極と前記インターコネクタが互いに接続された部分及び前記第2補助電極とインターコネクタが互いに接続された部分は、前記第1、第2太陽電池との間の離隔された空間に位置する、太陽電池モジュール。 - 前記電極接続材の樹脂層及び前記絶縁層は、エポキシ系の樹脂、アクリル系の樹脂、シリコン系の樹脂の内の少なくとも一つを含む、請求項1に記載の太陽電池モジュール。
- 前記絶縁層は、入射される光を反射する光反射粒子を含む、請求項1に記載の太陽電池モジュール。
- 前記光反射粒子は、酸化チタン(TiO2)粒子または蛍光体(phosphor)粒子で形成される、請求項3に記載の太陽電池モジュール。
- 前記導電性金属粒子の大きさは、0.1μm〜15μmの間である、請求項1に記載の太陽電池モジュール。
- 前記導電性金属粒子は、銀(Ag)、ニッケル(Ni)、銅(Cu)、金(Au)、アルミニウム(Al)の内の少なくとも1つを含んで形成される、請求項1に記載の太陽電池モジュール。
- 前記絶縁層内には、互いに離隔する複数の導電性金属粒子が位置する、請求項1に記載の太陽電池モジュール。
- 前記第1補助電極は、
前記第1電極と接続される第1接続部と、
一端が第1接続部の終端に接続される第1パッド部を含み、
前記第2補助電極は、
前記第2電極と接続される第2接続部と、
一端が前記第2接続部の終端に接続される第2パッド部を含む、請求項1に記載の太陽電池モジュール。 - 前記第1パッド部と前記第2パッド部には、互いに隣接する太陽電池を接続する前記インターコネクタが接続される、請求項8に記載の太陽電池モジュール。
- 背面に複数の第1電極と複数の第2電極とを互いに離隔して形成した半導体基板と、前面に第1補助電極と第2補助電極とを互いに離隔して形成した絶縁性部材を準備する段階と、
前記半導体基板と前記絶縁性部材とを一回の熱処理工程で相互に接続して、前記複数の第1電極と前記第1補助電極とを互いに接続させ、前記複数の第2電極と前記第2補助電極とを互いに接続させる接続段階とを含み、
前記接続段階は、
前記複数の第1電極と前記第1補助電極との間及び前記複数の第2電極と前記第2補助電極との間に複数の導電性金属粒子と樹脂を含む導電性接着剤ペーストを塗布する段階と、
前記複数の第1電極と前記第1補助電極が互いに接着される領域と、前記複数の第2電極と前記第2補助電極が互いに接着される領域を除外した残りの領域において、前記複数の第1電極と前記第2補助電極との間及び前記複数の第2電極と前記第1補助電極との間の短絡を防止するために絶縁層ペーストを塗布する段階を含み、
前記導電性接着剤ペーストの樹脂と前記絶縁層のペーストの樹脂は、互いに同一の材料であり、
前記接続段階で、前記一回の熱処理工程によって、
前記導電性接着剤ペーストと前記絶縁層のペーストが共に硬化されて、前記複数の第1電極と前記第1補助電極は、互いに接続され、前記複数の第2電極と前記第2補助電極は、互いに接続され、
前記複数の第1電極と前記第2補助電極との間及び前記複数の第2電極と前記第1補助電極との間の短絡が防止される、太陽電池の製造方法。 - 前記導電性接着剤ペーストに含まれる樹脂層の熱膨張率と、前記絶縁層ペーストに含まれる絶縁性樹脂層の熱膨張率とは、互いに同一である、請求項10に記載の太陽電池の製造方法。
- 前記導電性接着剤ペーストに含まれる樹脂層と、前記絶縁層ペーストに含まれる絶縁性樹脂層とは、互いに同一の材質である、請求項10に記載の太陽電池の製造方法。
- 前記太陽電池の半導体基板、前記第1補助電極及び第2補助電極と一体に、個々に接続するが、
前記第1、第2太陽電池との間の離隔された空間まで延長された前記第1補助電極及び第2補助電極下部に位置する、絶縁性基材とをさらに含む、請求項1に記載の太陽電池モジュール。 - 前記絶縁性基材上に位置する第1、第2補助電極のそれぞれの上に前記インターコネクタが接続された部分が位置する、請求項13に記載の太陽電池モジュール。
- 前記第1補助電極は、前記第1電極と同じ方向に形成され、
前記第2補助電極は、前記第2電極と同じ方向に形成される、請求項1に記載の太陽電池モジュール。
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JP7046351B2 (ja) | 2018-01-31 | 2022-04-04 | 三国電子有限会社 | 接続構造体の作製方法 |
JP7160302B2 (ja) | 2018-01-31 | 2022-10-25 | 三国電子有限会社 | 接続構造体および接続構造体の作製方法 |
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JPH04115407A (ja) * | 1990-09-03 | 1992-04-16 | Soken Kagaku Kk | 異方導電性接着剤組成物 |
JP4135565B2 (ja) * | 2003-06-06 | 2008-08-20 | 松下電器産業株式会社 | 電子回路装置およびその製造方法 |
JP4290747B2 (ja) * | 2006-06-23 | 2009-07-08 | シャープ株式会社 | 光電変換素子およびインターコネクタ付き光電変換素子 |
JP2008026386A (ja) | 2006-07-18 | 2008-02-07 | Ricoh Co Ltd | 定着ユニット及び画像形成装置 |
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 |
CN101855730A (zh) * | 2007-11-09 | 2010-10-06 | 夏普株式会社 | 太阳能电池模块以及太阳能电池模块的制造方法 |
DE102008040332B4 (de) * | 2008-07-10 | 2012-05-03 | Q-Cells Ag | Rückseitenkontaktierte Solarzelle und Solarmodul mit rückseitenkontaktierten Solarzellen |
US20120097245A1 (en) * | 2009-07-02 | 2012-04-26 | Tomohiro Nishina | Solar cell with interconnection sheet, solar cell module, and method for producing solar cell with internconnection sheet |
JP4678698B2 (ja) * | 2009-09-15 | 2011-04-27 | シャープ株式会社 | 太陽電池モジュールおよびその製造方法 |
JP2011114153A (ja) * | 2009-11-26 | 2011-06-09 | Mitsubishi Electric Corp | 光電変換装置およびその製造方法 |
JP5655206B2 (ja) * | 2010-09-21 | 2015-01-21 | 株式会社ピーアイ技術研究所 | 太陽電池の裏面反射層形成用ポリイミド樹脂組成物及びそれを用いた太陽電池の裏面反射層形成方法 |
JP5445419B2 (ja) * | 2010-09-27 | 2014-03-19 | 三洋電機株式会社 | 太陽電池モジュール及びその製造方法 |
JP5140133B2 (ja) * | 2010-10-29 | 2013-02-06 | シャープ株式会社 | 配線シート付き太陽電池セルの製造方法、太陽電池モジュールの製造方法、配線シート付き太陽電池セルおよび太陽電池モジュール |
JP5231515B2 (ja) * | 2010-12-17 | 2013-07-10 | シャープ株式会社 | 太陽電池の製造方法 |
JP6145884B2 (ja) * | 2011-07-04 | 2017-06-14 | パナソニックIpマネジメント株式会社 | 太陽電池モジュール |
JP2013026378A (ja) * | 2011-07-20 | 2013-02-04 | Sharp Corp | 太陽電池、太陽電池モジュール及びその製造方法 |
JP2013143426A (ja) * | 2012-01-10 | 2013-07-22 | Nitto Denko Corp | 導電性接着シートおよび太陽電池モジュール |
JP2013214603A (ja) * | 2012-04-02 | 2013-10-17 | Sharp Corp | 配線シート付き太陽電池セルの製造方法および太陽電池モジュールの製造方法 |
JP5232944B1 (ja) * | 2012-07-18 | 2013-07-10 | 東洋インキScホールディングス株式会社 | 太陽電池裏面保護シートおよび太陽電池モジュール。 |
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