JP2014531775A - 光起電力セル相互接続 - Google Patents
光起電力セル相互接続 Download PDFInfo
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- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
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Abstract
Description
5つのセルが直列に接続され、1つのセル当り3つの相互接続素子(リボン)が、各セルの上面電極を隣接するセルの裏面電極に接合する市販のCIGSセルの5セル光起電力ストリングを、Global Solar Energyから入手した。3つの先端相互接続素子を、各リボンの一部分が第1のセルの前縁を越えて延出する状態で、第1のセルの裏面電極上に設けた。同様に、3つの後端リボンを、各リボンの一部分が最後のセルの後縁を越えて延出する状態で、最後のセルの上面に取り付けた。スズ/銀の合金でコーティングされた、全ての相互接続リボン銅は、幅2.5mmであり、約0.1mmの厚さを有するものとした。グリッドは、銀充填有機物である。銀充填導電性エポキシ接着剤を使用して、全ての相互接続リボンを、前面電極及び裏面電極に取り付けた。幅1/2インチの3M(登録商標)1383 EMI遮蔽テープの一片を、その導電性テープが相互接続素子の全長及び全幅を封入するように、各セルに関する各リボンの長さに沿って適用した。次いで、先端及び後端の相互接続リボンの末端部を、抵抗溶接を用いて、ストリングの両末端部上の端子バーに溶接した。これらの端子バーは、ホームランワイヤ、ダイオードワイヤ、及び電気コネクタからなる更なる電気構成要素に予め固定した。次いで、これらのストリングを、ガラス/ポリオレフィン封入材/ストリング&電気アセンブリ/ポリオレフィン封入材/バックシート/ポリオレフィン封入材/TPOの順序で、予備積層体形式へと積み上げた。次いで、この予備積層体を、2つ折りタイプのラミネーター内で、150℃で積層加工した。積層体が形成された後、安定性試験のために、その太陽電池積層体を環境曝露チャンバ内に定置した。85℃条件への周囲曝露の間の、様々な間隔で得られた光起電力性能指数を、以下の表に示す(6のサンプルサイズ)。
実施例1と同じ方式で、5セルの太陽電池積層体を製作したが、ただし、裏面コンタクト上の相互接続素子を封入する導電素子として、導電性テープの代わりに、インジウム金属を使用した。このインジウムは、適用の間インジウムペレットを加熱することによって、液体形態で適用した。裏面電極及び相互接続素子の双方にインジウムが接触し、セルの裏面の相互接続素子の実質的な部分がインジウムで完全に封入されるように、この液体インジウムを、相互接続素子の上に延展させた。次いで、このインジウムを室温まで放冷した。積層体が形成された後、安定性試験のために、その太陽電池積層体を環境曝露チャンバ内に定置した。85℃条件への周囲曝露の間の、様々な間隔で得られた光起電力性能指数を、以下の表に示す(5〜6のサンプルサイズ)。
実施例1と同じ方式で、5セルの太陽電池積層体を製作したが、ただし、相互接続素子を封入する導電素子として、導電性テープの代わりに、ECM 1541−S導電性接着剤を使用した。裏面電極及び相互接続素子の双方に導電性接着剤が接触し、セルの裏面の相互接続素子の実質的な部分が導電性接着剤で完全に封入されるように、この導電性接着剤を、相互接続素子の上に延展させた。この導電性接着剤を、160℃で30分間にわたって硬化させ、次いで、その太陽電池ストリングを放冷した後、実施例1で説明される同じ方式で積層体を調製した。積層体が形成された後、安定性試験のために、その太陽電池積層体を環境曝露チャンバ内に定置した。85℃条件への周囲曝露の間の、様々な間隔で得られた光起電力性能指数を、以下の表に示す(6のサンプルサイズ)。
実施例1と同じ方式で、5セルの太陽電池積層体を製作したが、ただし、導電素子は提供しなかった。積層体が形成された後、安定性試験のために、その太陽電池積層体を環境曝露チャンバ内に定置した。85℃条件への周囲曝露の間の、様々な間隔で得られた光起電力性能指数を、以下の表に示す(6のサンプルサイズ)。
Claims (15)
- 上面電極と裏面電極との間に配置される光電活性領域を有する、第1の光起電力セルと、前記セルの裏面上の前記裏面電極と接触する電気コネクタとを備え、導電性パッチが、前記裏面電極及び前記コネクタの双方の少なくとも一部分の上に配置される、光起電力物品。
- 前記第1の光起電力セルに隣接する更なる光起電力セルを更に備え、前記更なる光起電力セルが、上面電極と裏面電極との間に配置される光電活性領域を有し、前記第1の光起電力セルの前記裏面と接触する前記電気コネクタが、前記第2の光起電力セルの導電素子と接触する、請求項1に記載の光起電力物品。
- 前記第1の光起電力セルの前記裏面と接触する前記電気コネクタが、前記第2の光起電力セルの前記上面電極と接触する、請求項2に記載の物品。
- それぞれが別の光起電力セルに隣接する、1つ以上の更なる光起電力セルが存在し、各セルが、上面電極と裏面電極との間に配置される光電活性領域を有し、各隣接するセルの接続が、1つのセルの前記上面電極、及び前記隣接するセルの前記裏面電極と接触して、一連の相互接続されたセルを形成する、1つ以上の電気コネクタであり、前記裏面電極、及び前記裏面電極と接触する前記電気コネクタの、少なくとも一部分が、導電性パッチによって覆われる、請求項3に記載の光起電力物品。
- 前記導電性パッチが、導電性テープ、導電性接着剤、又は低融点金属若しくはハンダ材料のうちの1つ以上を含む、請求項1〜4のいずれか一項に記載の光起電力物品。
- 前記導電性パッチが、約300℃未満の融解温度を有する、金属又は金属間組成物を含む、請求項5に記載の光起電力物品。
- 前記導電性パッチが、導電性エポキシ接着剤を含む、請求項5に記載の光起電力物品。
- 前記導電性パッチが、インジウムを含む、請求項6に記載の光起電力物品。
- 前記電気コネクタが、導電性接着剤を使用して、前記上面電極及び/又は前記裏面電極に取り付けられる、請求項1〜8のいずれか一項に記載の光起電力物品。
- 前記電気コネクタが、ワイヤメッシュを含む、請求項1〜9のいずれか一項に記載の光起電力物品。
- 裏面支持体と、前面透明バリア材料と、前記光起電力セル内で生成された電気の、他の電気デバイスへの伝達を可能にするための、電気的接続とを更に備える、請求項1〜10のいずれか一項に記載の光起電力物品。
- 前記裏面支持体と前記裏面電極との間の封入材料、及び前記上面電極と前記前面透明バリアとの間の封入材料を更に備える、請求項11に記載の物品。
- 前記前面透明バリアが可撓性である、請求項11又は12に記載の物品。
- 前記前面透明バリアがガラスである、請求項11又は12に記載の物品。
- 前記裏面支持体と、光起電力セル及び電気コネクタと、前面透明バリア材料とを含む、積み重ね体の少なくとも一部分の周囲に、高分子フレームを更に備える、請求項11〜14のいずれか一項に記載の光起電力物品。
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PCT/US2012/055122 WO2013048759A2 (en) | 2011-09-29 | 2012-09-13 | Photovoltaic cell interconnect |
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JP2016528738A (ja) * | 2013-08-21 | 2016-09-15 | ジーティーエイティー・コーポレーション | 金属片を太陽電池へ連結するためのアクティブはんだの使用 |
CN104779311A (zh) * | 2014-01-15 | 2015-07-15 | 聚日(苏州)科技有限公司 | 一种太阳能电池组件及其形成方法 |
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JP6199839B2 (ja) * | 2014-09-30 | 2017-09-20 | 信越化学工業株式会社 | 太陽電池及びその製造方法 |
JP2017069291A (ja) * | 2015-09-28 | 2017-04-06 | 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 |
CN109119510A (zh) * | 2017-06-26 | 2019-01-01 | 中国科学院上海硅酸盐研究所 | 一种连接太阳能电池金属电极与光伏焊带的方法 |
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