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Photovoltaic cell and article including isotropic or anisotropic electrically conductive layer

A photovoltaic cell, anisotropic technology, applied in photovoltaic power generation, conductive materials dispersed in non-conductive inorganic materials, circuits, etc., can solve problems such as warping of PV cells

Inactive Publication Date: 2014-10-29
DOW CORNING CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition to the known risks associated with Pb, the use of traditional solders in PV cells often requires processing at higher temperatures, resulting in thermal stress on the PV cells
Also, using traditional solders in PV cells can create high spots on the PV cells or cause the PV cells to warp

Method used

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  • Photovoltaic cell and article including isotropic or anisotropic electrically conductive layer
  • Photovoltaic cell and article including isotropic or anisotropic electrically conductive layer
  • Photovoltaic cell and article including isotropic or anisotropic electrically conductive layer

Examples

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Embodiment Construction

[0040] Referring now to the drawings, wherein like numerals refer to like parts throughout the several views, a photovoltaic (PV) cell is shown generally at 30 . PV cells 30 can be used to convert light of many different wavelengths into electric current. Thus, PV cell 30 can be used in a variety of applications. For example, a plurality of PV cells 30 in electrical communication may be used in a photovoltaic module (not shown). Photovoltaic modules can be used in a variety of locations and in a variety of applications, such as in residential, commercial or industrial applications. For example, photovoltaic modules can be used to generate electrical current that can be used to power electrical devices such as lights and motors, or photovoltaic modules can be used to shade objects from sunlight under the motor vehicle). PV cell 30 is not limited to any particular type of use. The figures are not necessarily drawn to scale. Accordingly, certain components of PV cell 30 may be...

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PUM

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Abstract

A photovoltaic (PV) cell comprises a base substrate which comprises silicon and includes at least one doped region. The PV cell further comprises a collector disposed on the doped region of the base substrate and having a lower portion in physical contact with the doped region of the base substrate, and an upper portion opposite the lower portion. The PV cell further comprises an electrically conductive layer which is electrically isotropic or anisotropic and disposed adjacent the collector. The electrically conductive layer is in electrical communication with the base substrate via the collector. The electrically conductive layer comprises a binder and electrically conductive particles comprising at least one metal selected from the group consisting of Group 8 through Group 14 metals of the Periodic Table of Elements. The electrically conductive particles impart isotropic or anisotropic electrical conductivity to the electrically conductive layer.

Description

[0001] Cross references to related patent applications [0002] This patent application claims the benefit of U.S. Provisional Patent Application Serial No. 61 / 570,768, filed December 14, 2011, and U.S. Provisional Patent Application Serial No. 61 / 663,249, filed June 22, 2012, the disclosure of which The contents are hereby incorporated by reference in their entirety. technical field [0003] The present invention relates generally to photovoltaic (PV) cells and to articles for assembling related PV cells. Both the PV cells and articles include isotropic or anisotropic conductive layers. Background technique [0004] Front and back surface metallization is an important aspect of photovoltaic (PV) cells that enable the collection and transport of charge carriers. In front-side PV cell construction, the metallization is usually in the form of a grid comprising narrow lines or "fingers" of conductive material connected to thicker bus bars. In backside PV cell construction, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/0224H01L31/05
CPCH01L31/022425H01L31/0512Y02E10/50H01B1/22H01L31/02008H01L31/18
Inventor 约翰·D·阿尔博蒂凡尼·曼乔莱特T·P·米切尔尼古拉斯·E·鲍威尔
Owner DOW CORNING CORP