JPWO2019163778A1 - 配線材、並びにそれを用いた太陽電池セル及び太陽電池モジュール - Google Patents
配線材、並びにそれを用いた太陽電池セル及び太陽電池モジュール 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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- H01L31/042—PV modules or arrays of single PV cells
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Abstract
Description
図1及び図2は実施形態に係る集電線50により互いに接続された複数の太陽電池セル10(10A/10B)を含む太陽電池モジュール1(1A/1B)の一部を模式的に示す。図1は両面電極型太陽電池セル10Aを用いた場合の断面図であり、図2は裏面電極型太陽電池セル10Bを用いた場合の断面図である。なお、図1及び図2は、集電線50を用いて複数の太陽電池セル10(10A/10B)同士を電気的に接続した接続形態を重点的に示した図面である。
図5は実施形態に係る集電線50を示す。図5において、左図は集電線50の平面図(平面部分図)であり、右図は左図のV−V線における断面図である。図5に示すように、実施形態に係る集電線50は、複数の素線を集めた集合線52と、該集合線52を封止すると共に、エネルギーの付与により接着性を生じる絶縁性樹脂体51とを含む。
図6〜図8は実施形態に係る集電線50の接続方法を示す。なお、便宜上、図7及び図8においては図6における集電線50を拡大して示す。
以下、実施形態に係る集電線50を用いた裏面電極型太陽電池セル10B1,10B2を第1の実施態様として図9及び図10に示す。ここで、図9及び図10は受光面に対する反対側の面である裏面の平面図である。
以下、実施形態に係る集電線50を用いた裏面電極型太陽電池セル10B1,10B2を第2の実施態様として図11〜図13に示す。ここでも、図11及び図12は受光面と反対側の面である裏面の平面を示し、図13は受光面に対する反対側の面である裏面を上にした断面を示す。
以下、実施形態に係る集電線50を用いた両面電極型太陽電池セル10A1,10A2を第3の実施態様として図15に示す。
2 封止材
3 受光面保護部材
4 裏面保護部材
10A 両面電極型太陽電池セル
10B 裏面電極型太陽電池セル
10C セルストリング
11 n型半導体層(n型不純物拡散層)
12 p型シリコン基板
13 半導体基板
14 反射防止膜
15 n側電極
15a 透明導電膜
15b 金属膜
16 p側電極
16a 透明導電膜
16b 金属膜
17 反射膜
18 反射防止膜
19 保護透明板
21 n型半導体層(n型不純物拡散層)
22 p型半導体層
23 n型シリコン基板
50 集電線(配線材)
50a 集電線(マルチワイヤ電極配線/配線材)
51 絶縁性樹脂体
52 集合線
Claims (11)
- 太陽電池セルに生じるキャリアを輸送する配線材であって、
複数の素線を集めた集合線と、
前記集合線を封止すると共に、エネルギーの付与により接着性を生じる絶縁性樹脂体と、
を含む配線材。 - 請求項1に記載の配線材において、
前記集合線は、前記素線を編んだ編み線、又は前記素線を縒った縒り線であり、
前記絶縁性樹脂体は、前記素線同士の隙間の少なくとも一部を埋める配線材。 - 請求項1又は2に記載の配線材において、
前記絶縁性樹脂体は、熱エネルギーを付与されて硬化する熱硬化性樹脂、又は光エネルギーを付与されて硬化する紫外線硬化性樹脂である配線材。 - 請求項1〜3のいずれか1項に記載の配線材を接続させた太陽電池セルであって、
前記配線材は、前記キャリアを集める集電線であり、
前記集電線における、エネルギーを付与され且つ加圧された部分において、前記素線のみが、前記太陽電池セルに対する電気的な接続部分となる太陽電池セル。 - 請求項4に記載の太陽電池セルにおいて、
前記集電線における、エネルギーを付与され且つ加圧された部分において、前記絶縁性樹脂体のみが、前記太陽電池セルに対する物理的な接着部分となる太陽電池セル。 - 請求項5に記載の太陽電池セルにおいて、
前記物理的な接着部分は、線状又は複数の点状である太陽電池セル。 - 請求項4〜6のいずれか1項に記載の太陽電池セルにおいて、
前記集電線と接続される電極は、表裏面に設けられた両面電極型、又は裏面にのみ設けられた裏面電極型である太陽電池セル。 - 請求項5に記載の太陽電池セルにおいて、
裏面電極型で且つ前記物理的な前記接着部分が複数の点状である場合に、
前記絶縁性樹脂体の接着した領域の一部の導電性は、第1導電型であり、
前記絶縁性樹脂体の接着していない領域の少なくとも一部の導電性は、第2導電型である太陽電池セル。 - 請求項5、6又は8に記載の太陽電池セルにおいて、
透明電極又は金属電極をさらに備え、
前記物理的な接着部分と接着する部分は、前記透明電極又は前記金属電極である太陽電池セル。 - 請求項9に記載の太陽電池セルにおいて、
前記透明電極又は前記金属電極は、線状又は面状である太陽電池セル。 - 請求項4〜10のいずれか1項に記載の太陽電池セルを前記集電線により電気的に接続された太陽電池モジュール。
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