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Solar photovoltaic battery

A photovoltaic cell, solar energy technology, applied in secondary batteries, circuits, electrical components, etc., can solve the problems of current instability, vulcanization, shortened life, etc., and achieve the effect of prolonging the service life, prolonging the life, and avoiding the vulcanization phenomenon.

Active Publication Date: 2012-02-01
深圳市均益安联光伏系统工程有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem of vulcanization and shortened service life of existing solar photovoltaic cells due to unstable current, the purpose of the present invention is to provide a solar photovoltaic cell with longer service life

Method used

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Examples

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Effect test

Embodiment 1

[0018] This implementation discloses a solar photovoltaic cell, which includes a battery casing, an anode plate, a cathode plate, a separator plate, a liquid outlet plug, a cover, and other components, as well as an electrolyte, which contains a concentration of 25% sulfuric acid, 5% Nano silicon solution, 3% phosphate solution, the phosphate solution contains iron phosphate, magnesium phosphate, aluminum phosphate, cobalt phosphate, and nickel phosphate.

Embodiment 2

[0020] The difference between this implementation and Example 1 is that the concentration of sulfuric acid in the electrolyte is 35%, the concentration of the nano-silicon solution is 9%, and the concentration of the phosphate solution is 7%.

Embodiment 3

[0022] As the best embodiment of the present invention, the difference between this implementation and Example 1 is that the concentration of sulfuric acid in the electrolyte is 30%, the concentration of nano-silicon solution is 7%, and the concentration of phosphate solution is 5%.

[0023] In the present invention, the electrolytic solution is prepared into a non-solidified water-colloid solution by adding a certain concentration of nano-silicon-magnesium solution. The principle is to improve the electrolyte of the traditional lead-acid battery; after adding the silicon material solution, the process of adding "meteorological silica" inside the battery turns the electrolyte into a gel solution. However, only the characteristics of the electrolyte are changed. The nano-silicon solution used in the present invention is an ultrafine silicon dioxide solution, which not only makes the storage battery a maintenance-free, leak-free environmental protection feature, but also directly...

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Abstract

The invention relates to a storage battery technology, and specifically discloses a solar photovoltaic battery which can be used in a solar photovoltaic environment. According to the invention, a nano-grade silicon solution and a phosphate solution are added to the electrolyte of the battery. According to the invention, with the modification of the characteristics of the electrolyte, a sulfidization phenomenon is prevented from occurring, and the service life of the solar photovoltaic battery can be prolonged. The battery is suitable for small-current solar energy charging and large-current discharging. Theoretically, the service life of the battery reaches 15 years, and the temperature adaptability of the battery is good.

Description

technical field [0001] The invention relates to a storage battery technology, in particular to a special battery for solar photovoltaic energy storage. Background technique [0002] For traditional batteries, the number of cycles and "float charge" life are generally used to define their indicators. For power batteries, the number of cycles is currently the most important evaluation criterion, while the battery life for solar photovoltaics does not reach 1,000 times. This is because in a solar photovoltaic system, the current and voltage generated by solar energy change with the weather. That is, the energy "in" (energy storage) is variable, while the amount of electricity "out" (used) is fixed. Therefore, it is easy to produce "over-discharge" and "over-charge" or "under-charge". After over-discharging, the white lead sulfate produced in the acid battery adheres to the surface of the internal plate of the battery to form a layer of white hard crystals. After charging, it...

Claims

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Application Information

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IPC IPC(8): H01M10/38
CPCY02E60/12Y02E60/10Y02P70/50
Inventor 周民康
Owner 深圳市均益安联光伏系统工程有限责任公司
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