JP5992396B2 - 太陽電池および太陽電池を製造する方法 - Google Patents
太陽電池および太陽電池を製造する方法 Download PDFInfo
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Description
2 接触指、格子構造
3 電池上の導体
4 ウエハ
5 シード層
6 導体
7 伝導性被覆(好ましくは、電気化学的、ガルバーニ電気的またはプラズマ吹付けにより生成される)
8 導体突起
9 バスバー導体
10 処理容器
11 陽極
12 電解液
13 レベル
14 隙間
15 ピックアップ
16 クランプ
17 クランプネジ
19 コンベヤ
20 コンベヤトラック
21 運搬の方向矢印
22 バッキング層、静止
23 バッキング層、回転
24 キャリア
25 開口
26 導体レール
27 摺動接点、ブラシ、ローラ
28 摺動経路
29 電流分配抵抗器
30 カップ、キュベット、容器
31 流れの方向矢印
32 張力
33 上部
34 力の方向矢印
35 バイア
36 電解質供給
Claims (10)
- 太陽電池(1)を生産する方法であって、
少なくとも1つの導体(6)が、前記太陽電池(1)または前記太陽電池(1)の他の導体に、伝導性被覆材(7)を用いて機械的にかつ電気的伝導性を持つように接続されている、太陽電池を生産する方法において、
該方法が、
(a)少なくとも1つのシード層を備える、半導体材料からなる太陽電池基板を準備するステップと、
(b)ワイヤの形状の前記少なくとも1つの導体(6)を、前記太陽電池(1)の前記シード層上に載置するステップと、
(c)前記伝導性被覆材(7)を前記少なくとも1つのシード層上及び前記少なくとも1つの導体(6)の周りに同時に堆積させるステップであって、それによって前記導体(6)を前記太陽電池基板に接続し、前記被覆材(7)が、ガルバーニ電気的にまたは電気化学的に、前記太陽電池上に生成される、ステップと、
を備える、太陽電池(1)を生産する方法。 - 前記少なくとも1つの導体(6)が、接触指(2)と、バスバー導体と、太陽電池接続導体と、からなるグループの中から選択される、請求項1に記載の方法。
- 前記少なくとも1つの導体(6)が、前記太陽電池(1)の電気的接続のための導体突起(8)として前記太陽電池(1)の少なくとも1つの側で前記太陽電池(1)の表面領域を超えて突出する、請求項1または2に記載の方法。
- 前記堆積させるステップが、前記太陽電池(1)を電解槽の中で電気メッキするステップによって行われ、前記電気メッキするステップが、
(i)前記ワイヤの形状の少なくとも1つの導体を、電気メッキされる前記太陽電池(1)の表面上の前記少なくとも1つのシード層上に平らに置くステップであって、それによって、前記少なくとも1つの導体(6)と、前記シード層との間に少なくとも部分的な電気的接触を作りだす、ステップと、
(ii)電気メッキ電流を前記少なくとも1つのシード層に、前記少なくとも1つの導体(6)を介して供給するステップであって、それによって、前記導体(6)が機械的かつ電気的に前記太陽電池(1)に接続されるように、前記被覆材(7)を前記少なくとも1つのシード層上及び前記導体(6)の周りに同時に堆積させる、ステップと、
を備える、請求項1または2に記載の方法。 - 前記堆積させるステップが、前記太陽電池(1)を電解槽の中で電気メッキするステップによって行われ、前記電気メッキするステップが、
(i)前記ワイヤの形状の少なくとも1つの導体を、電気メッキされる前記太陽電池(1)の表面上の前記少なくとも1つのシード層上に平らに置くステップであって、それによって、前記少なくとも1つの導体(6)と、前記シード層との間に少なくとも部分的な電気的接触を作りだす、ステップと、
(ii)電気メッキ電流を前記少なくとも1つのシード層に、前記少なくとも1つの導体(6)を介して供給するステップであって、それによって、前記導体(6)が機械的かつ電気的に前記太陽電池(1)に接続されるように、前記被覆材(7)を前記少なくとも1つのシード層上及び前記導体(6)の周りに同時に堆積させる、ステップと、
を備える、請求項3に記載の方法。 - 電解槽の電解液内に位置決めされる前記少なくとも1つの導体(6)に張力を加えるためのピックアップ(15)または前記太陽電池を搬送するキャリア(24)を用いた前記電気メッキの工程中に、前記少なくとも1つの導体が、前記電解槽の中の前記太陽電池基板を支持しており、前記ピックアップ(15)または前記キャリア(24)は、前記太陽電池(1)の長さを超えて延在している、請求項4に記載の方法。
- 電解槽の電解液内に位置決めされる前記少なくとも1つの導体(6)に張力を加えるためのピックアップ(15)または前記太陽電池を搬送するキャリア(24)を用いた前記電気メッキの工程中に、前記少なくとも1つの導体が、前記電解槽の中の前記太陽電池基板を支持しており、前記ピックアップ(15)または前記キャリア(24)は、前記太陽電池(1)の長さを超えて延在している、請求項5に記載の方法。
- 前記電気メッキ電流が、電解液(12)のレベル(13)を超えて前記電解槽の外側へ延在する少なくとも1つの前記導体突起(8)を通じて、前記導体(6)の中に供給される、請求項5または7に記載の方法。
- 請求項4〜8のいずれか一項に記載の方法に使用するデバイスであって、
前記電解槽の電解液(12)中で、前記少なくとも1つの導体(6)が、前記太陽電池(1)上の前記シード層に対して少なくとも部分的に平らに接触するように、前記少なくとも1つの導体(6)を支持する手段(15、16、30、32、33)と、前記太陽電池(1)を支持する手段(24、30,33)と、を備える、デバイス。 - 前記電解液(12)のレベル(13)が前記太陽電池(1)の前記少なくとも1つの導体(6)が接触する側の面のみに到達するように、処理容器(10、30)内に前記太陽電池(1)を位置付けるための手段(6、15、24、30、33)を備える、請求項9に記載のデバイス。
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