Solar battery for solar mobile phone battery and preparation method thereof

Abstract

The invention discloses a preparation method for a solar battery of a solar mobile phone battery module, comprising the following steps: (1) after an epoxy resin plate is cleaned, adhesives, a glass fiber surfacing mat and a crystalline silicon battery are sequentially laminated on the epoxy resin plate; (2) an extraction electrode of the crystalline silicon battery is welded with a welding point at the bottom surface of the epoxy resin plate, and then a polyvinyl fluoride adhesive tape is pasted on the crystalline silicon battery, corresponding to the position of the extraction electrode; (3) the adhesives and tempering glass are laminated on the crystalline silicon battery; (4) the laminated battery modules are laminated, the temperature is 140-150 DEG C, the atmosphere pressure is 0.5-0.6, and the time is 10-20mins; (5) cooling formation is carried out, so as to obtain the solar battery of the solar mobile phone battery module. The solar battery which has high photoelectric conversion efficiency and good appearance is prepared, and the solar battery is assembled with the lithium battery and the shell, so as to obtain the solar mobile phone battery module.

Description

technical field [0001] The invention relates to a solar cell and a preparation method thereof, in particular to a solar cell used for solar mobile phone battery components and a preparation method thereof. Background technique [0002] In recent years, solar mobile phone battery components that combine solar cells and traditional mobile phone lithium batteries have become a hot spot in mobile phone battery research. Solar mobile phone battery components have many advantages: (1) It does not affect the performance of the original mobile phone battery, that is, the original mobile phone lithium battery can still be used as the power supply of the mobile phone, and it can also be charged by the existing charger; (2) It has a wide range of applications , Easy to use, its use is not restricted by region and time, as long as there is sunlight or light, it can be charged, no special charger is needed, when the battery of the mobile phone is used up, it only needs to be exposed to t...

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Problems solved by technology

[0005] However, the above-mentioned solar cell preparation method has the following disadvantages: (1) Since the silicon wafer is encapsulated by a filling process and liquid glue is used, it is difficult to control the thickness of the product, so that the finally obtained solar cell is relatively thick, with uneven surface and uneven surface. There is no edge, it is relatively bulky, so it is difficult to control the size of the product, and the precision is low; at the same time, air bubbles will be generated during the filling process, which affects the photoelectric conversion efficiency and appearance of the final product; There are many solder joints on it, and the increase of solder joints not only increases the workload of preparation, but also a large number of solder joints need to be drawn out by tin-coated copper strips, which makes the appearance of the final product ugly and the size is not large. Good control affects its popularization and application; at the same time, the contact resistance of the solar cell with the above structure increases, the charging current further weakens, and the charging efficiency decreases; and if a silicon chip breaks or the current decreases, it will affect the power generation efficiency of the entire circuit , thus the reliability is relatively poor; (3) the surface of the solar cell obtained by this preparation method is wrapped by glue, and the glue on the surface is easy to wear, thereby affecting the light incident rate and reducing the photoelectric conversion efficiency

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