Preparation method of back contact HIT solar battery based on N-type silicon wafer

A solar cell, back-contact technology, applied in circuits, electrical components, final product manufacturing, etc., can solve the problems of high cost and small production capacity, achieve the effect of simple method, reduce component production cost, and avoid electrode shading
CN102185030AActive Publication Date: 2011-09-14山东力诺太阳能电力股份有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
山东力诺太阳能电力股份有限公司
Publication Date
2011-09-14

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Abstract

The invention discloses a preparation method of a back contact HIT solar battery based on an N-type silicon substrate. The preparation method combines a conventional crystalline silicon battery productive technology and a thin film solar cell productive technology, is simple and is capable of realizing industrialization fast. The solar battery prepared by the method does not have the light-induced degradation phenomenon of the crystalline silicon solar battery; the transmission optical path of the sunlight in the battery is longer, and the thickness of the battery is greatly reduced than thatof the conventional crystalline silicon solar cell; the electrodes are fully printed on the back of the battery, thus not only avoiding the shading problem of the positive electrode of the conventional solar battery, but also reducing the requirements on the printing precision and height to width ratio of the electrode; in the component production process, by using the solar battery, welding processes can be reduced, solder strips are reduced and production cost of the component is lowered.
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Description

technical field

[0001] The invention relates to a method for preparing a solar cell, in particular to a method for preparing a back-contact HIT solar cell on an N-type silicon substrate. Background technique

[0002] The rapid development of the solar energy industry requires an industrialized technology with simple process flow and high photoelectric conversion efficiency to reduce the cost of power generation and achieve the goal of being equal to or lower than the price of mains electricity.

[0003] With the development of industrialization, conventional crystalline silicon cells have made great progress in improving conversion efficiency and reducing costs. However, the technical characteristics of conventional crystalline silicon cells limit the further reduction of their power generation costs, and it is difficult to achieve the goal of the same price as the mains electricity. Various solutions have emerged in the industry, including selective emitter solar cells, ba...

Claims

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