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Preparation method of silicon wafer, silicon wafer and battery

A technology of silicon wafers and silicon rods, applied in the field of solar photovoltaic, can solve the problems of difficulty in cutting large-sized silicon wafers, low efficiency, etc., and achieve the effect of being beneficial to thinning cutting, reducing silicon loss, and improving cutting quality

Pending Publication Date: 2021-11-19
LONGI GREEN ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the embodiment of this application is to provide a method for preparing silicon wafers, silicon wafers and batteries, which can solve the problems of high difficulty and low efficiency in cutting large-sized silicon wafers

Method used

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  • Preparation method of silicon wafer, silicon wafer and battery
  • Preparation method of silicon wafer, silicon wafer and battery
  • Preparation method of silicon wafer, silicon wafer and battery

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Embodiment Construction

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0029] The terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the application can be practiced in sequences other than those illustrated or described herein. In addition, "and / or" in the specification an...

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Abstract

The invention discloses a preparation method of a silicon wafer, the silicon wafer and a battery, and relates to the technical field of solar photovoltaics. The preparation method of the silicon wafer comprises the following steps that a silicon rod is cut in the direction parallel to the axis of the silicon rod to obtain at least two cuboid square rods; and the cuboid square rods are sliced in the direction parallel to the end surfaces of the cuboid square rods to obtain a plurality of rectangular silicon wafers. In the process of preparing the silicon wafer through the method, the cutting difficulty of the silicon wafer can be effectively reduced, the cutting quality of the silicon wafer is effectively improved, and light and thin cutting of the silicon wafer is facilitated.

Description

technical field [0001] The application belongs to the field of solar photovoltaic technology, and in particular relates to a method for preparing a silicon wafer, a silicon wafer and a battery. Background technique [0002] With the development of photovoltaic technology, solar energy has been widely promoted as a green, environmentally friendly and renewable energy. Monocrystalline silicon wafers for solar cells are generally cut from silicon rods. In order to take into account the material utilization rate of silicon rods and ensure the photoelectric efficiency of subsequent photovoltaic modules, the round silicon rods are usually squared to obtain square rods, and then the square rods are sliced ​​to obtain silicon wafers to prepare larger-sized solar cells. [0003] In the prior art, the power generation efficiency of photovoltaic modules is usually improved by increasing the size of silicon wafers. However, the larger the wafer size, the more difficult it is to cut. ...

Claims

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Application Information

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IPC IPC(8): B28D5/04
CPCB28D5/04
Inventor 迪大明毛剑波成路鲁战锋
Owner LONGI GREEN ENERGY TECH CO LTD
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