Difunctional electrochromic energy storage device and manufacturing method thereof

An electrochromic and fabrication method technology, applied in instruments, nonlinear optics, optics, etc., can solve the problems of limited Li ion energy density and single function, and achieve the effect of simple, convenient and effective integration of preparation processes and steps.

Active Publication Date: 2020-06-19
NINGBO MI RUO ELECTRONICS TECH CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

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  • Difunctional electrochromic energy storage device and manufacturing method thereof
  • Difunctional electrochromic energy storage device and manufacturing method thereof

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Embodiment 1

[0046] In this embodiment, the dual-function electrochromic energy storage device, such as figure 1 As shown in a, the electrochromic energy storage device includes a substrate (elastic PET substrate, flexible PET substrate) and a functional layer deposited on the substrate, and the film structure of the functional layer includes sequentially deposited on the The conductive layer on the substrate (transparent conductive ITO electrode, transparentconductive ITO electrode), the intermediate functional layer (electrochromic layer V 2 o 5 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 180nm. The film thickness of the intermediate functional layer is 2000nm.

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

[0049] The film thicknes...

Embodiment 2

[0061] The dual-function electrochromic energy storage device of this embodiment has the same layer structure layout and preparation method of the functional layer as that of Embodiment 1, the main difference being that the thickness of the ITO conductive layer is 50 nm. The film thickness of the intermediate functional layer is 50nm. The film thickness of the electrolyte layer is 5 μm.

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

[0063] The step S4 self-supporting Zn 2+ Preparation of base polyacrylic acid hydrogel film layer: take 0.032mol of zinc acetate and dissolve it 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 Add the cross-linking agent ethylene bismethacrylate and the initiator azobisisobutyronitrile; after stirring evenly, pour it into the mold quickly, and polymerize it at 60°C for 6 hours, then...

Embodiment 3

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

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

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

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Abstract

The invention discloses a difunctional electrochromic energy storage device which comprises a substrate and a functional layer deposited on the substrate, and a film layer structure of the functionallayer comprises a conductive layer, a middle functional layer and an electrolyte layer which are sequentially deposited on the substrate. According to the bifunctional electrochromic energy storage device, a ZPEM/V2O5/ITO electrochromic device is constructed through the prepared self-supporting Zn<2+>-based polymer electrolyte membrane (ZPEM), the electrochromic device with the simplest device structure and three membrane layers is achieved, and the bifunctional electrochromic energy storage device has the dual-functional characteristics of electrochromism and energy storage. The invention further discloses a manufacturing method of a difunctional electrochromic energy storage device.

Description

technical field [0001] The invention relates to the technical field of electrochromic devices, in particular to a dual-function 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 an electrochromic smart window is applied to a building, the electrochromic effect of the material blocks more than 90% of the incident ultraviolet rays, which can achieve the effect of heat insulation in summer and heat preservation in winter, which helps to reduce building energy consumption and reduce CO 2 emissions. However, the electrochromic smart window device usually does not have an energy storage function, and its function is relatively single, thus reducing the function of the electrochromic smart window. [0003] A standard electrochromic d...

Claims

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Application Information

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Patent Type & Authority Applications(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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