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Plastic crystal-based hydrophobic solid electrolyte and application thereof

A technology of solid electrolytes and plastic crystals, applied in capacitor electrolytes/absorbents, photovoltaic power generation, capacitor components, etc., can solve problems such as increasing the cost of solar cells and affecting the stability of solar cells, achieving high stability and photoelectric conversion efficiency , high stability, low cost effect

Active Publication Date: 2014-01-22
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, solid electrolytes based on plastic crystals have certain water absorption and can absorb moisture in the air, which affects the stability of solar cells, or requires strict sealing and packaging, which increases the cost of solar cells

Method used

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  • Plastic crystal-based hydrophobic solid electrolyte and application thereof
  • Plastic crystal-based hydrophobic solid electrolyte and application thereof
  • Plastic crystal-based hydrophobic solid electrolyte and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Prepare a hydrophobic solid electrolyte and measure the conductivity:

[0029] 0.8g 0.05g 0.1g After 0.05g of NBB is ground evenly, place it in a tablet press and press it into a 1cm*1cm sheet at 10-20MPa, sandwich these sheets between two stainless steel electrodes, so that the contact area between the sheet and the stainless steel electrode is 1cm *1cm, connected to the electrochemical workstation with the two-electrode method, the conductivity measured was 1.9×10 –4 S cm –1 .

[0030] Assemble a dye-sensitized solar cell and measure its performance:

[0031] Clean the FTO conductive glass with ultrasonic waves and immerse it in 40mM TiCl at 70°C 4 Keep it in the aqueous solution for 30min, so as to form a layer of dense TiO on the surface of FTO conductive glass 2 Then take out the FTO conductive glass, rinse it with ethanol and dry it naturally; apply the P25 slurry and P400 slurry on the TiO2 film respectively by scraping technology to form TiO2 with a th...

Embodiment 2

[0034] Dye-sensitized solar cells were assembled using the same method as in Example 1, and their photoelectric conversion efficiency was tested. The difference lies in the composition and content of the hydrophobic solid electrolyte. In this example, the hydrophobic solid electrolyte contains 0.5g 0.02g 0.38g 0.1g NBB, the measured conductivity is 1.3×10 –4 Scm –1 , The photoelectric conversion efficiency of the battery is 3.0%.

Embodiment 3

[0036] Dye-sensitized solar cells were assembled using the same method as in Example 1, and their photoelectric conversion efficiency was tested. The difference lies in the composition and content of the hydrophobic solid electrolyte. In this example, the hydrophobic solid electrolyte contains 0.7g 0.024g 0.216g 0.06g NBB, the measured conductivity is 2.4×10 –4 S cm –1 , The photoelectric conversion efficiency of the battery is 2.65%.

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Abstract

The invention relates to plastic crystal-based hydrophobic solid electrolyte and application thereof. The plastic crystal-based hydrophobic solid electrolyte consists of a hydrophobic plastic crystal, a hydrophobic redox couple and additives. The plastic crystal-based hydrophobic solid electrolyte consists of the hydrophobic plastic crystal, the hydrophobic redox couple and the additives, so that the plastic crystal-based hydrophobic solid electrolyte is insensitive to moisture in air, can be used under the environment of 100% humidity, and has high stability. A dye-sensitized solar battery prepared by the hydrophobic solid electrolyte is not needed to be encapsulated, has few assembling procedures, high stability and high photoelectric conversion efficiency, and is low in cost.

Description

technical field [0001] The invention relates to a solid electrolyte and its application, in particular to a plastic crystal-based hydrophobic solid electrolyte and its application. Background technique [0002] Electrolyte is the core component of solar cells, especially dye-sensitized solar cells. It mainly plays the role of transporting redox pairs, and its performance directly affects the photoelectric conversion efficiency of solar cells. Common electrolytes for dye-sensitized solar cells are liquid, quasi-solid, and solid. Among them, the liquid electrolyte contains organic solvents, which have disadvantages such as easy leakage, volatilization, difficulty in packaging, and poor stability; quasi-solid electrolytes contain a small amount of solvents such as ethylene carbonate and propylene carbonate, and there are also leakage problems after long-term use, which will cause Decrease in battery stability. Therefore, solid-state electrolytes with high efficiency and high ...

Claims

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Application Information

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IPC IPC(8): H01G9/20H01G9/028
CPCY02E10/542
Inventor 严锋张也李世超时成贞张伟
Owner SUZHOU UNIV
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