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Preparation method of slice battery, slice battery and photovoltaic module

A battery and slicing technology, applied in the field of solar cells, can solve the problems of low yield rate and high efficiency loss of SHJ solar cells

Active Publication Date: 2020-11-10
苏州联诺太阳能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006]Based on this, it is necessary to provide an improved slicing cell for the traditional cutting method that causes a large loss of efficiency and low yield of SHJ solar cells. Preparation

Method used

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  • Preparation method of slice battery, slice battery and photovoltaic module
  • Preparation method of slice battery, slice battery and photovoltaic module

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Embodiment Construction

[0030] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0031] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical", "horizontal", "left", "right", "upper", "lower", "front", "rear", "circumferential" and...

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Abstract

The invention provides a preparation method of a slice battery, the slice battery and a photovoltaic module. The preparation method comprises the following steps of providing a silicon wafer; cuttingthe silicon wafer to obtain a plurality of separated sub-silicon wafers with preset sizes; and manufacturing the slice battery by taking the sub-silicon slices as substrates. According to the preparation method of the slice battery, the silicon substrate is cut into the plurality of separated sub-silicon wafers in advance, and the slice battery is prepared by taking each sub-silicon wafer as the substrate, so that secondary damage to the slice battery caused by subsequent breaking or cracking can be avoided, the yield of the slice battery is improved, and the photoelectric conversion efficiency of the battery is improved. In addition, through the method, the preparation difficulty and the preparation cost of the high-main-grid slice battery can be reduced while the battery damage is reduced, and the batch production of the high-main-grid slice battery is realized.

Description

technical field [0001] The invention relates to the technical field of solar cells, in particular to a method for preparing a sliced ​​battery, a sliced ​​battery and a photovoltaic module. Background technique [0002] In recent years, with the continuous breakthrough of the bottleneck of solar cell technology, the efficiency of solar cells has become higher and higher, and various new types of solar cells have also become the focus of attention. [0003] Half-cut cells, also known as half-cut cells, are prepared by cutting a complete solar cell into two small pieces. Since the current is reduced by half, combined with the first series and then parallel arrangement to form a photovoltaic module, the internal resistance consumption of the photovoltaic module can be significantly reduced and the output power of the module can be increased. Half-cell and laminated photovoltaic modules have developed rapidly in the past two years, and laser slicing is an indispensable process ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/20H01L31/0747
CPCH01L31/202H01L31/0747Y02E10/50Y02P70/50
Inventor 不公告发明人
Owner 苏州联诺太阳能科技有限公司
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