Solar cell and solar cell module group

A solar cell and positive electrode technology, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of reducing the open-circuit voltage of solar cells and photoelectric conversion efficiency, poor current collection effect, and difficulty in collecting carriers, so as to improve photovoltaic power generation. Conversion efficiency and open circuit voltage, reducing the probability of recombination, and improving the effect of current collection efficiency

Inactive Publication Date: 2015-07-29
MOTECH INDUSTRIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, considering that the amount of conductive material used for the multiple bus electrodes 921 is large, the conductive paste with a low silver content is usually used to form the multiple bus electrodes 921 in manufacturing. Although the above-mentioned method can save manufacturing costs, it is Therefore, the conductivity of the plurality of bus

Method used

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  • Solar cell and solar cell module group
  • Solar cell and solar cell module group
  • Solar cell and solar cell module group

Examples

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Example Embodiment

[0031] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, in the following description, similar elements are denoted by the same numbers.

[0032] see figure 2 , a first preferred embodiment of the solar cell module of the present invention includes: a first plate 11 and a second plate 12 arranged at opposite intervals up and down, a plurality of arrays arranged on the first plate 11 and the second plate The solar cells 13 between the plates 12 , and a packaging material 14 located between the first plate 11 and the second plate 12 and wrapping around the solar cells 13 . Of course, in practice, the solar cell module may only include one solar cell 13 .

[0033] In this embodiment, the materials of the first plate 11 and the second plate 12 are not particularly limited, and glass or plastic plates can be used, and the plate on the light-receiving side of the solar cell 13 must be trans...

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Abstract

The invention discloses a solar cell and a solar cell module group. The solar cell comprises a substrate, a positive electrode, and a back electrode. The substrate comprises a light-receiving surface where the positive electrode is arranged, a back surface where the back electrode is arranged, and an emitter electrode layer which is located on the light-receiving surface and is provided with a heavily doped region and a light doped region. The positive electrode comprises a first convergence electrode, a second convergence electrode, and a plurality of finger-shaped electrodes. The heavily doped region is provided with a first heavily doped part and a second heavily doped part, which are located between the first convergence electrode and the second convergence electrode. The solar cell can improve the collection efficiency of charge carriers, and reduces the recombination probability of charge carriers, thereby improving the collection efficiency of current, and improving the photoelectric conversion efficiency and open-circuit voltage of the solar cell.

Description

technical field [0001] The invention relates to a battery and its module, in particular to a solar battery and its module. Background technique [0002] refer to figure 1 , a general solar cell includes a substrate 91 that can convert light energy into electrical energy, a positive electrode 92 disposed on a light-receiving surface 911 of the substrate 91, and a positive electrode 92 disposed on the substrate 91 opposite to the light-receiving surface 911 A back electrode (not shown) on the back side (not shown). The positive electrode 92 has a plurality of bus electrodes 921 extending along a first direction 98 and arranged at intervals along a second direction 99 , and a plurality of fingers extending along the second direction 99 and arranged at intervals along the first direction 98 An electrode 922 , the plurality of finger electrodes 922 are connected to the plurality of bus electrodes 921 . In manufacturing, a plurality of solar cells and other components are usual...

Claims

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Application Information

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IPC IPC(8): H01L31/0224H01L31/05
CPCY02E10/50H01L31/022425H01L31/05
Inventor 陈威有陈哲宏曹铭修
Owner MOTECH INDUSTRIES
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