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Preparation method of solid-state sensitized battery

A sensitized battery and solid-state technology, applied in the field of solar cells, can solve the problems of easy leakage, high temperature instability, and difficult packaging, etc., and achieve the effects of good absorption, high aspect ratio, and improved collection

Active Publication Date: 2014-04-02
南通东湖国际商务服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a preparation method of a solid-state sensitized battery for liquid electrolytes that are not easy to package, unstable at high temperature, and easy to leak. Battery stability, extended battery life, etc.

Method used

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  • Preparation method of solid-state sensitized battery

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0022] Example 1: TiO in liquid electrolyte 2 Preparation of Nanofiber-Sensitized Cells.

[0023] 1. TiO 2 Preparation of nanofibers:

[0024] According to the mass ratio of 2:5:10:40, weigh 1g of polyvinylpyrrolidone (PVP) into a 100ml beaker, add 2.5ml of tetrabutyl titanate, 5ml of glacial acetic acid, 20ml of absolute ethanol, and stir at room temperature for 3h , stand still for 1 hour to obtain a uniform, transparent spinning solution with a certain viscosity; add the configured spinning solution to the existing electrospinning device of the spinning device, and perform electrospinning with a nozzle diameter of 0.6mm, and the working The voltage is 15kV; the curing distance from the syringe needle nozzle to the receiving screen is 13cm; the indoor temperature is 15 o C, with a relative humidity of 45%, to obtain PVP / TiO 2 Composite nanofibers; the prepared PVP / TiO 2 The composite nanofibers were placed in a programmed temperature-controlled furnace for heat treatmen...

example 2

[0029] Example 2: TiO in gel polyion electrolyte 2 Preparation of nanofiber-sensitized batteries

[0030] 2. TiO 2 Preparation of nanofibers

[0031] Same as TiO in Example 1 2 Preparation of nanofibers.

[0032] 2. TiO2 2 Processing of Nanofiber Photoanodes

[0033] Same as TiO in Example 1 2 Preparation of nanofiber photoanodes.

[0034] 3. Preparation of gel polyion electrolyte

[0035] According to the volume ratio of 6:6:7:6, weigh 1M 1-methyl-3-propylimidazolium iodide (PMII), 0.1M iodine (I 2 ), 0.2M lithium bistrifluoromethanesulfonimide (LITFSI), 0.5M 4-tert-butylpyridine (TBP), 25wt% polyionic liquid ([PBVIm][TFSI]) in a 100ml round bottom flask, 60 Stirring at ℃ for 8 hours to make it evenly mixed to obtain a gel polyionic liquid electrolyte with a certain consistency.

[0036] 4. Electrode sensitization and battery assembly

[0037] Soak in the N719 dye solution for 24 hours, then place it in the prepared gel polyionic liquid electrolyte and soak it for ...

example 3

[0038] Example 3: ALD treatment of TiO in FTO and gel polyion electrolyte 2 Preparation of nanofiber-sensitized batteries

[0039] 1. TiO 2 Preparation of nanofibers

[0040] Same as TiO in Example 1 2 Preparation of nanofibers.

[0041] 2. Preparation of gel polyion electrolyte

[0042] Same as the preparation of the gel polyion electrolyte in Example 2.

[0043] 3. ALD method to process FTO conductive glass

[0044] A titanium oxide layer with a thickness of 5 nm was prepared on the surface of the cleaned FTO conductive glass by ALD method.

[0045] 4. TiO 2 Processing of Nanofiber Photoanodes

[0046] Prepared TiO 2 Nanofiber cutting area is 0.5×0.5cm 2 , 2ml of tetrabutyl titanate and 20ml of absolute ethanol are configured to form a solution of tetrabutyl titanate in absolute ethanol, which is added dropwise on TiO 2 Nanofibers and ALD method on the FTO, so that it has better adhesion.

[0047] 5. Electrode sensitization and battery assembly

[0048] Same as th...

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Abstract

The invention relates to the technical field of solar batteries, in particular to a preparation method of a solid-state sensitized battery. The preparation method comprises a step of preparing TiO2 nanometer fibers, a step of preparing gel ion electrolyte, a step of treating FTO and preparing a photo anode and a step of sensitizing the photo anode, treating the electrolyte and assembling batteries. The preparation method has the beneficial effects that 1, by adopting an electrospinning technology, nanometer fibers with large specific surface area and large length-diameter ratio can be obtained, and the absorption of dyes is facilitated; 2, by adopting an ALD technology for preparing a titanium oxide layer, the collection for battery cells can be improved, and the composition of the electrolyte and the FTO can be obstructed; 3, the sensitized nanometer fibers are directly packaged after being soaked in the gel electrolyte, so that the packaging process is simple.

Description

technical field [0001] The invention relates to the technical field of solar cells, in particular to a preparation method of a solid-state sensitized cell, which is applied to a dye-sensitized solar cell. Background technique [0002] Energy and environmental issues have become the focus of attention all over the world, and solar energy has many advantages such as cleanness, safety, inexhaustibility, low cost of use, and not limited by geographical conditions. It is an ideal energy source to solve energy and environmental problems; dyes The sensitized solar cell is a new type of solar cell developed based on nanotechnology. It has the advantages of low production cost, simple production process, no pollution, and good light stability. It is an environmentally friendly solar cell. [0003] A dye-sensitized solar cell (DSSC) is mainly composed of a transparent conductive substrate, a porous nanocrystalline semiconductor film, an electrolyte solution, and a counter electrode; h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G9/20
CPCY02E10/549
Inventor 袁宁一李燕丁建宁林本才张帅
Owner 南通东湖国际商务服务有限公司
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