JP2023033050A - 太陽電池及び光起電力モジュール - Google Patents
太陽電池及び光起電力モジュール Download PDFInfo
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Abstract
【解決手段】太陽電池は、基板及び基板に位置するパッシベーション層と、基板の面に設けられたメイングリッド及びサブグリッドとを含み、メイングリッドとサブグリッドは電気的に接続され、サブグリッドは基板に電気的に接続され、メイングリッドの数は10~15本であり、太陽電池は基板の面に設けられた溶接点をさらに含み、溶接点の数は4~6個であり、溶接点は第1溶接点及び第2溶接点を含み、第1溶接点はメイングリッドの両端に位置し、第2溶接点は第1溶接点の間に位置し、第1溶接点の面積は0.6mm2~1.3mm2であり、第2溶接点の面積は0.2mm2~0.5mm2である。
【選択図】図1
Description
前記メイングリッドとサブグリッドが電気的に接続され、ここで、前記メイングリッドの数が10~15本であり、
前記溶接点の数が4~6個であり、前記溶接点が第1溶接点及び第2溶接点を含み、前記第1溶接点が前記メイングリッドの両端に位置し、前記第2溶接点が前記第1溶接点の間に位置し、前記第1溶接点の面積が0.6mm2~1.3mm2であり、前記第2溶接点の面積が0.2mm2~0.5mm2である。
前記第1溶接点及び/又は前記第2溶接点の前記太陽電池の厚さ方向に沿ったサイズは、8μm以下である。
2-サブグリッド
3-溶接点
31-第1溶接点
32-第2溶接点
前記基板は、N型半導体であり、前記基板の裏側には順にトンネル酸化層、N型多結晶シリコン、裏面パッシベーション層及び金属電極が設けられ、他方側にはホウ素がドープされた拡散層及び金属電極が設けられ、
前記メイングリッドとサブグリッドが電気的に接続され、ここで、前記メイングリッドの数が10~15本であり、
前記溶接点の数が4~6個であり、前記溶接点が第1溶接点及び第2溶接点を含み、前記第1溶接点が前記メイングリッドの両端に位置し、前記第2溶接点が前記第1溶接点の間に位置し、前記第1溶接点の面積が0.6mm2~1.3mm2であり、前記第2溶接点の面積が0.2mm2~0.5mm2であり、
前記メイングリッド(1)の幅は、20μm~45μmである。
基板、及び前記基板の少なくとも一つの面に位置するパッシベーション層と、前記基板の面に互いに交差して設置されたメイングリッドとサブグリッドと、前記基板の面に設置された溶接点とを含み、
前記基板は、P型半導体であり、前記基板の表側にはパッシベーション層及び銀電極が設けられ、他方側にはパッシベーション層、アルミニウム電極及び銀電極が設けられ、
前記メイングリッドとサブグリッドが電気的に接続され、前記メイングリッドの数は、10~15本であり、
前記溶接点の数は、4~6個であり、前記溶接点は、第1溶接点及び第2溶接点を含み、前記第1溶接点は、前記メイングリッドの両端に位置し、前記第2溶接点は、前記第1溶接点の間に位置し、前記第1溶接点の面積は、0.6mm 2 ~1.3mm 2 であり、前記第2溶接点の面積は、0.2mm 2 ~0.5mm 2 であり、
前記メイングリッドの幅は、40μm~60μmである。
Claims (16)
- 太陽電池であって、
基板、及び前記基板の少なくとも一つの面に位置するパッシベーション層と、前記基板の面に互いに交差して設置されたメイングリッド(1)とサブグリッド(2)と、前記基板の面に設置された溶接点(3)とを含み、
前記メイングリッド(1)とサブグリッド(2)が電気的に接続され、前記メイングリッド(1)の数は、10~15本であり、
前記溶接点(3)の数は、4~6個であり、前記溶接点(3)は、第1溶接点(31)及び第2溶接点(32)を含み、前記第1溶接点は、前記メイングリッド(1)の両端に位置し、前記第2溶接点(32)は、前記第1溶接点(31)の間に位置し、前記第1溶接点(31)の面積は、0.6mm2~1.3mm2であり、前記第2溶接点(32)の面積は、0.2mm2~0.5mm2である、ことを特徴とする太陽電池。 - 前記メイングリッド(1)及び/又はサブグリッド(2)の前記太陽電池の厚さ方向に沿ったサイズは、10μm以下であり、及び/又は、
前記第1溶接点(31)及び/又は前記第2溶接点(32)の前記太陽電池の厚さ方向に沿ったサイズは、8μm以下である、ことを特徴とする請求項1に記載の太陽電池。 - 前記第1溶接点(31)及び/又は第2溶接点(32)の形状は、矩形、菱形、円形、楕円形のうちのいずれか一つまたはそれらの組み合わせを含む、ことを特徴とする請求項1に記載の太陽電池。
- 前記第1溶接点(31)の長さ及び幅は、それぞれ0.3mm~1.1mmである、ことを特徴とする請求項3に記載の太陽電池。
- 前記第2溶接点(32)の長さ及び幅は、それぞれ0.4mm~0.8mmである、ことを特徴とする請求項3に記載の太陽電池。
- 前記第2溶接点(32)は、前記メイングリッド(1)に接触しかつ前記サブグリッド(2)に接触しない、ことを特徴とする請求項1~5のいずれか一項に記載の太陽電池。
- 前記基板は、N型半導体である、ことを特徴とする請求項1~5のいずれか一項に記載の太陽電池。
- 前記メイングリッド(1)の幅は、20μm~45μmである、ことを特徴とする請求項7に記載の太陽電池。
- 前記サブグリッド(2)の幅は、20μm~40μmであり、
前記サブグリッド(2)の数は、80~100本である、ことを特徴とする請求項7に記載の太陽電池。 - 前記基板は、P型半導体である、ことを特徴とする請求項1~5のいずれか一項に記載の太陽電池。
- 前記メイングリッド(1)の数は、10~13本である、ことを特徴とする請求項10に記載の太陽電池。
- 前記メイングリッド(1)の幅は、40μm~60μmである、ことを特徴とする請求項10に記載の太陽電池。
- 前記サブグリッド(2)の幅は、20μm~45μmであり、
前記サブグリッド(2)の数は、100~150本である、ことを特徴とする請求項10に記載の太陽電池。 - 光起電力モジュールであって、
前記光起電力モジュールは、表面から裏面まで順にガラス、第1接着フィルム材料、太陽電池ストリング、第2接着フィルム材料、バックシートであり、
前記太陽電池ストリングは、複数の太陽電池から構成され、前記太陽電池は、請求項1~13のいずれか一項に記載の太陽電池である、ことを特徴とする光起電力モジュール。 - 前記太陽電池同士は、溶接ワイヤによって接続され、前記溶接ワイヤの直径は、0.25mm~0.32mmである、ことを特徴とする請求項14に記載の光起電力モジュール。
- 前記第1接着フィルム材料及び/又は前記第2接着フィルム材料の重量は、300g/m2~500g/m2である、ことを特徴とする請求項14に記載の光起電力モジュール。
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CN114823961A (zh) | 2022-06-27 | 2022-07-29 | 浙江晶科能源有限公司 | 光伏组件结构 |
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