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Method for detecting resistance of solar cells to corrosion of water vapor

A technology for solar cells and corrosion performance, applied in the direction of testing wear resistance, etc., can solve the problems of low efficiency, long test time, unable to meet industrial high-efficiency mass production, etc., achieving simple process, simplified component packaging process, and easy application. effect on mass production

Inactive Publication Date: 2011-08-31
CHINALIGHT SOLAR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantage of this detection method is that the test time is too long, and this low-efficiency detection method cannot meet the requirements of industrial high-efficiency mass production

Method used

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  • Method for detecting resistance of solar cells to corrosion of water vapor
  • Method for detecting resistance of solar cells to corrosion of water vapor
  • Method for detecting resistance of solar cells to corrosion of water vapor

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0025] The specific operation steps of detection method of the present invention are as follows:

[0026] 1) Clean the ultrasonic water tank, inject deionized water, and the water level is not higher than the heaters on both sides of the ultrasonic water tank. Turn on the heater to heat, and raise the temperature of the deionized water to 70°C. Before the test, the water was fully stirred to make the temperature of the water in the tank as uniform as possible.

[0027] 2) When the deionized water rises to 70°C, put the solar cell sample to be tested into the deionized water.

[0028] 3) Use a mercury thermometer to test the water temperature every 1 minute, and keep the water temperature at 70°C. During the detection process, it is necessary to observe with the naked eye whether there is a chemical reaction between the solar cell sample and ...

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Abstract

A method for detecting resistance of solar cells to corrosion of water vapor is characterized by comprising the steps of putting a solar cell sample in hot water with the temperaure of 70 DEG C to be soaked for 10min, monitoring whether the sample reacts with the water chemically to produce bubbles or smog and judging whether the solar cell sample is qualified according to the state of the produced bubbles or smog.

Description

Technical field: [0001] The invention relates to a detection method of a solar cell. Background technique: [0002] In order to ensure that the components can be used for more than 20 to 25 years under outdoor conditions, they must have good packaging to meet the requirements for windproof, dustproof, moisture-proof, and corrosion-proof conditions during use. Research tests have shown that the failure of the battery often comes from the packaging of the components, such as: due to the separation of the packaging material from the battery, the electrical contact deteriorates, and the efficiency of the battery decreases; due to poor sealing, the components enter moisture; due to the connection Improper welding process of the conductive band between the single cells, resulting in weak welding or discoloration of the flux. Therefore, component packaging is an important process in the production and manufacture of solar cells, and its cost accounts for about 1 / 3 of the total cos...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/56
Inventor 段野宋洋李剑曾诚李佳佳
Owner CHINALIGHT SOLAR