A kind of bifunctional electrochromic energy storage device and its production method

A technology of electrochromic and manufacturing method, applied in instruments, nonlinear optics, optics, etc., can solve problems such as single function and limited Li ion energy density, and achieve the effect of simple and convenient preparation process and steps

Active Publication Date: 2022-08-02
NINGBO MI RUO ELECTRONICS TECH CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In view of the above deficiencies in the prior art, the present invention provides a dual-function electrochromic energy storage device and a manufacturing method thereof, through a new film layer structure design, to solve the problem of single function of the existing electrochromic device and conventional Li For the technical problem of limited ion energy density, on the basis of the electrochromic function of the electrochromic device, the superposition of the energy storage function of the device is realized, so that it has the dual functions of electrochromic and energy storage at the same time

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  • A kind of bifunctional electrochromic energy storage device and its production method
  • A kind of bifunctional electrochromic energy storage device and its production method

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Embodiment 1

[0046] The dual-function electrochromic energy storage device of this embodiment, such as figure 1 As shown in a, the electrochromic energy storage device includes a substrate (flexible PET substrate) and a functional layer deposited on the substrate. Conductive layer on the substrate (transparent conductive ITO electrode, transparentconductive ITO electrode), intermediate functional layer (electrochromic layer V 2 O 5 Thin film, electrochromic layeredV 2 O 5 thin film) and electrolyte layer (self-supporting Zn 2+ based polymer electrolyte membrane, free-standing Zn 2+ -based polymeric electrolyte membrane).

[0047] The thickness of the ITO conductive layer is 180 nm. The film thickness of the intermediate functional layer is 2000 nm.

[0048] The electrolyte layer is self-supporting Zn 2+ Polyacrylamide hydrogel film layer.

[0049] The membrane thickness of the electrolyte layer is 1.5 mm.

[0050] A preparation method of the above-mentioned bifunctional electroc...

Embodiment 2

[0061] The bifunctional electrochromic energy storage device of this embodiment, the film structure arrangement of the functional layer and the preparation method thereof are basically the same as those of Embodiment 1, the main difference is that the thickness of the ITO conductive layer is 50 nm. The film thickness of the intermediate functional layer is 50 nm. The membrane thickness of the electrolyte layer is 5 μm.

[0062] The electrolyte layer is self-supporting Zn 2+ based polyacrylic hydrogel film layer.

[0063] The step S4 is self-supporting Zn 2+ Preparation of base polyacrylic acid hydrogel film layer: dissolve 0.032mol of zinc acetate in 100ml of deionized water, stir to obtain a salt solution with a concentration of 0.32mol / L, and add 12.48g of methacrylic acid monomer to the salt solution Then add the cross-linking agent ethylene bismethacrylate and the initiator azobisisobutyl cyanide; after stirring evenly, pour it into the mold quickly, and polymerize it a...

Embodiment 3

[0067] The bifunctional electrochromic energy storage device of this embodiment, the film structure arrangement of the functional layer and its preparation method are basically the same as those of Embodiment 1, the main difference is that the thickness of the ITO conductive layer is 300nm. The film thickness of the intermediate functional layer is 5000 nm. The thickness of the membrane layer of the electrolyte layer is 5 mm.

[0068] The electrolyte layer is self-supporting Zn 2+ Polyethylene glycol hydrogel film layer.

[0069] The step S4 is self-supporting Zn 2+ Preparation of polyethylene glycol-based hydrogel film layer: dissolve 0.048 mol of zinc fluoroborate in 100 ml of deionized water, stir to obtain a salt solution with a concentration of 0.48 mol / L, and add 18.6 g of ethylene glycol monomer to the solution. In the salt solution, add the crosslinking agent ethylene glycol dimethacrylate and the initiator di(tert-butylcyclohexyl) peroxydicarbonate; after stirring ...

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Abstract

The invention discloses a bifunctional electrochromic energy storage device. The electrochromic energy storage device comprises a substrate and a functional layer deposited on the substrate. The conductive layer, the intermediate functional layer and the electrolyte layer on the substrate. The bifunctional electrochromic energy storage device of the present invention is prepared by self-supporting Zn 2+ based polymer electrolyte membrane (ZPEM), constructing ZPEM / V 2 O 5 / ITO electrochromic device, realizes the electrochromic device with the simplest three-layer film structure, and has the dual function of electrochromic and energy storage. The invention also discloses a preparation method of the bifunctional electrochromic energy storage device.

Description

technical field [0001] The invention relates to the technical field of electrochromic devices, in particular to a bifunctional electrochromic energy storage device and a manufacturing method thereof. Background technique [0002] Electrochromic (EC) technology can be widely used in smart windows, automotive anti-glare rearview mirrors, information displays, electronic paper, light modulators, and shutters. For example, when electrochromic smart windows are applied to buildings, more than 90% of ultraviolet rays are blocked by the electrochromic effect of the material, which can achieve the effect of heat insulation in summer and heat insulation in winter, which helps to reduce energy consumption in buildings and reduce CO 2 emissions. However, the electrochromic smart window device usually does not have the function of energy storage, and the function is relatively single, therefore, the function of the electrochromic smart window is reduced. [0003] A standard electrochr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/153G02F1/1524
CPCG02F1/1533G02F1/1524
Inventor 张洪亮曹鸿涛张鑫磊王坤曹贞虎胡珊珊
Owner NINGBO MI RUO ELECTRONICS TECH CO LTD
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