Method of manufacturing electrochromic device and electrochromic device

FIELD: physics.

SUBSTANCE: inventions relate to the field of light-relieving devices, providing a colour change under the influence of electric current voltage, namely to devices based on electrochromic compositions and technology of their manufacture. The electrochromic device comprises two electrodes, at least, one of which is optically transparent. A closed space is formed between the electrodes, in which there is a solid electrochromic layer containing a crosslinked polymer matrix with a filler in the form of an electrochromic solution.

EFFECT: work in conditions of long-term maintenance of the coloured state and the effect of elevated temperatures, including structures with sufficiently large working surface dimensions.

34 cl, 2 dwg, 7 ex

 



 

Same patents:

FIELD: electricity.

SUBSTANCE: invention relates to the electrochemical processor which comprises: a) first electrode and the second electrode, each of which has the first and opposite second surfaces, and the first electrode and the second electrode have the differing electrode potentials and physically separated mutually along the axes X, b) electrolyte, which covers at least a part of the first surface of the first electrode and a part of the first surface of the second electrode along the axis Y and electrically connects the named first electrode with the second electrode. Meanwhile at least a part of the first surface of the second electrode not covered by electrolyte, is covered towards the axis Y with a an electric insulation material, which bounds with an electrolyte, and the activation of the electrochemical processor favours to lateral foliation of the second electrode and isolation material, starting from the place of contact of the second electrode and isolation material, that ensures the channel between the second electrode and the isolation material. Besides, the invention relates to the use of this electrochemical processor and method of assembly of such electrochemical processor.

EFFECT: processor ensures the constant time of reaction.

17 cl, 12 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to applied electrochemistry, namely to an electrochromic device with a lithium polymer electrolyte and a method of manufacturing the electrochromic device. Claimed is the electrochromic device with the lithium polymer electrolyte, which includes an operating electrode in the form of a tungsten oxide film, a counterelectrode in the form of the Prussian Blue film and a polymer electrolyte with the following composition, wt %: lithium perchlorate 8-16, ethylenecarbonate 20-30, polymethylmethacrylate polymer 10-20, propylenecarbonate - the remaining part. The method of the electrochromic device manufacturing includes the preparation of the polymer electrolyte, preparation of working and auxiliary electrodes, in particular the cathode restoration of an auxiliary electrode before the assembly in the liquid lithium electrolyte, assembly and sealing. In the process of assembly a portion of the thickened polymer electrolyte is placed between the electrodes with their compression until complete contact of the counterelectrode with a separator of the operating electrode takes place, after which the excess of the electrolyte is removed. The device sealing is carried out by means of thermal glue.

EFFECT: application of the claimed method prevents the formation of gas bubbles in the electrolyte layer.

5 cl, 3 ex

FIELD: chemistry.

SUBSTANCE: invention relates to electrochromic devices. Versions of the invention realisation relate to improved electrochromic materials, packs of electrochromic devices and assembly units (600a) of electrochromic windows, containing the first glass substrate (402), which is not thermally tempered and supports a pack (400) of electrochromic layers, the second glass substrate (602), made from thermally tempered glass and laminated on the first substrate and the third glass substrate (604).

EFFECT: improved coefficient of passing in transparent condition, increased reliability.

22 cl, 10 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to a polymer electrochromic device which is capable of varying light absorption in a controlled manner when voltage is applied. The polymer electrochromic device includes at least two electrodes and an electrochromic composition. The electrochemical composition contains a cathode component(s) and an anode component(s), at least one of which is an electrochromic component, and an electrolyte. The electrochromic component is a dispersion of nanoparticles of an insoluble electrochromic polymer in an organic solvent.

EFFECT: invention ensures easy production of the device by using a more readily available insoluble electrochromic polymer compared to insoluble electrochromic polymers currently used.

4 cl, 4 dwg, 6 ex

FIELD: chemistry.

SUBSTANCE: electroconductive adhesive contains the following components in the following ratios, wt %: 20-60 polymer-oligomer complex with adhesive properties, 3-20 ion source, 20-70 solvent. The polymer-oligomer complex used is a hydrogen-bond stoichiometric complex obtained from high-molecular weight polyvinyl pyrrolidone, taken in amount of 50-80 wt %, and oligomeric polyethylene glycol telechelic, taken in amount of 20-50 wt %. A method of obtaining an electrolyte includes mixing said components in a mixer to obtain a homogeneous transparent viscous composition. The electrochromic device has two substrates with an optically transparent conducting layer between which there is an electrochromic layer in form of an oxide or polymer film, said electrolyte and a counter electrode.

EFFECT: invention enables to obtain an electrolyte which is transparent in the visible region, has high adhesive capacity to adjacent layers, electrochemical stability, considerable ion conductivity and no electron conductivity.

25 cl, 5 dwg, 1 tbl

FIELD: electrical engineering.

SUBSTANCE: invention relates to a method for preparation of a jellous polymer electrolyte for electrochromic light modulators with film electrochromic layers based on polymer acids. Added to a polymer acid is a low molecular subacid that is liquid at a temperature equal to the bottom limit of the light modulator operable temperature range.

EFFECT: increased mobility of ions in the polymer electrolyte, plastification of the polymer electrolyte layer ensuring stability of mechanical, electric and optic properties of the electrolyte in the course of long-term operation and storage of electrochromic light modulators.

3 cl, 2 dwg, 1 ex

FIELD: electricity.

SUBSTANCE: device contains conductive layer (2) made with possibility to connect to substrate with transparency function. This layer (2) is formed of metal lattice (9) made of pure metal and covered with at list one layer of electrochemical protection (10) preferably with metal layer or layer of metal nitride.

EFFECT: improving method.

11 cl, 6 dwg, 2 tbl, 2 ex

FIELD: physics.

SUBSTANCE: electrochromic device has a polychromic illuminating device and a switched electrochromic window for selective adjustment of transmission of a specific wavelength. The electrochromic window has a stack of a plurality of layers deposited on a supporting surface, wherein the stack of a plurality of layers deposited on the supporting surface is deposited on an additional stack of layers having a polychromic illuminating device.

EFFECT: improved device.

12 cl, 3 dwg

FIELD: physics.

SUBSTANCE: solution contains: (a) non-aqueous solvent; (b) cathode material which is pyridine-containing electrochromic polymer material of Formula 1: Formula 1 , where each Ar group independently denotes a C6-C100 aryl group which contains or does not contain a heteroatom; R1 is a C6-C100 arylene group which contains or does not contain a heteroatom; R2 is a C6-C100 arylene group which contains or does not contain a heteroatom, a linear alkyl group or a cyclic alkyl group; X is an anion selected from a group consisting of F-, Cl-, Br- l-, NO3-, N(CN)2-, BF4-, ClO4-, RSO3-, RCOO-, PF6- (CF3)2PF4- (CF3)3PF3- (CF3)4PF2- (CF3)5PF-, (CF3)6F-, (CF3SO3-)2, (CF2CF2SO3-)2, (CF3SO3)2N- CF3CF2(CF3)2CO-, (CF3SO2)2CH-, (SF5)3C-, (CF3SO2)3C-CF3(CF2)7SO3-, CF3CO2- and CH3CO2-; and n ranges from 2 to 1000; and (c) anode material, which is aniline-based electrochromic material of Formula 4: Formula 4 . The cathode material and anode material is dissolved in non-aqueous solvents. An electrochromic device, a cathode for the electrochromic device and an anode for the electrochromic device are also disclosed.

EFFECT: invention provides excellent cost-effectiveness of the electrochromic device, high drop in optical density and longevity.

10 cl, 7 ex, 4 dwg

FIELD: chemistry.

SUBSTANCE: apparatus (1) has at least one activation layer (20), at least one migration layer (40) lying on at least one activation layer (20), capable of allowing liquid (70) to pass through. The liquid (70) causes change in the doping level of at least one activation layer (20) which activates at least one element. That element can be an element of an electrochromic image (220), an electric switch, a time-controlled resistor, a galvanic element (210) or a combination of these elements.

EFFECT: improved apparatus.

20 cl, 14 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to applied electrochemistry, namely to an electrochromic device with a lithium polymer electrolyte and a method of manufacturing the electrochromic device. Claimed is the electrochromic device with the lithium polymer electrolyte, which includes an operating electrode in the form of a tungsten oxide film, a counterelectrode in the form of the Prussian Blue film and a polymer electrolyte with the following composition, wt %: lithium perchlorate 8-16, ethylenecarbonate 20-30, polymethylmethacrylate polymer 10-20, propylenecarbonate - the remaining part. The method of the electrochromic device manufacturing includes the preparation of the polymer electrolyte, preparation of working and auxiliary electrodes, in particular the cathode restoration of an auxiliary electrode before the assembly in the liquid lithium electrolyte, assembly and sealing. In the process of assembly a portion of the thickened polymer electrolyte is placed between the electrodes with their compression until complete contact of the counterelectrode with a separator of the operating electrode takes place, after which the excess of the electrolyte is removed. The device sealing is carried out by means of thermal glue.

EFFECT: application of the claimed method prevents the formation of gas bubbles in the electrolyte layer.

5 cl, 3 ex

FIELD: chemistry.

SUBSTANCE: invention relates to a polymer electrochromic device which is capable of varying light absorption in a controlled manner when voltage is applied. The polymer electrochromic device includes at least two electrodes and an electrochromic composition. The electrochemical composition contains a cathode component(s) and an anode component(s), at least one of which is an electrochromic component, and an electrolyte. The electrochromic component is a dispersion of nanoparticles of an insoluble electrochromic polymer in an organic solvent.

EFFECT: invention ensures easy production of the device by using a more readily available insoluble electrochromic polymer compared to insoluble electrochromic polymers currently used.

4 cl, 4 dwg, 6 ex

FIELD: chemistry.

SUBSTANCE: invention relates to donor-acceptor conjugated polymer (DA-CP) and method of its obtaining. DA-CP polymer has strong absorption of visual light in one redox state and in form of thin film is black for human eye perception. Polymer contains acceptor repeat units (A), which contain at least one derivative of thiadiazole chinoxaline, chinoxaline, thienothiadiazole, thienopyrazine, pyrazine chinoxaline, benzobisthiadiazole, thiadiazole thienopyrazine or any their combination, located among multitude of repeating donor units (D). Units (D) contain at least one 3,4-bis(alkoxy)thiophene, at least one bis-alkyloxy-substituted 3,4-alkylene dioxythiophene or any their combination. Said donor repeat links are present in form of poludisperse sequences between acceptor repeat units, with the shortest sequence containing at least two donor repeat units. Method of DA-CP polymer obtaining includes: providing mixture for polymerisation, which contains a set of at least one DA-oligomer, containing at least one internal acceptor repeat unit, and chemical polymerisation of said mixture.

EFFECT: polymer is electrocromic and can be used as material for fast and reversible colour change, it is saturated black in one redox state, and in other redox state it can be coloured or be highly transparent in the entire visible range, which extends possibilities of its application.

18 cl, 6 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to photochromic polymer recording media based on a new family of thermally irreversible diarylethenes and specifically aryl-substituted cyclopentene benzthienyl derivatives of diarylethenes for use in new-generation multilayer optical discs with capacity of more than 1 TB, which enable to make three-dimensional (3D) optical random-access memory. The photochromic recording medium contains polymer binder and a thermally irreversible photochromic compound from the class of diarylethene derivatives of formula I:

, where R-C(O)C(O)OEt or C(O)Me. Based on said photochromic recording medium, multilayer recording media are obtained, having alternating photochromic recording media and polymer optically transparent layers. The production method involves repeated application of optically transparent polymer layers with thickness of 40-50 nm by photopolymerisation of acrylic oligomeric compositions and photochromic recording layers with thickness of 10 mcm by centrifuging.

EFFECT: disclosed photochromic recording media are characterised by low cost of production, availability, functional properties which enables wide application thereof in information technologies.

5 cl, 11 dwg, 1 tbl, 14 ex

FIELD: physics.

SUBSTANCE: light-sensitive composition contains 2,2-n-dianisyl-5,6-benzo-[2H]-chromene and 1,3,3-trimethyl-6'-formyl-8'-allyl-spiro-indoline-2,2'-[2H]-chromene in molar ratio 1:0.8-1.6, respectively. Photochromic polymer materials obtained from said composition have optimum optical properties needed to satisfy physiologically based requirements for protective and preventive optical materials: when illuminated with daylight, they "cut" off the spectral region from 400 to 555 nm, while keeping intensity of light incident on eyes with wavelength greater than 555 nm at a level of less than 30%, and in conditions of low-intensity dusk illumination provide full transmission of light with wavelength greater than 400 nm.

EFFECT: protecting eyes and preventing ophthalmic diseases associated with the damaging effect of optical radiation in the visible spectrum.

5 dwg, 3 ex

FIELD: physics.

SUBSTANCE: solution contains: (a) non-aqueous solvent; (b) cathode material which is pyridine-containing electrochromic polymer material of Formula 1: Formula 1 , where each Ar group independently denotes a C6-C100 aryl group which contains or does not contain a heteroatom; R1 is a C6-C100 arylene group which contains or does not contain a heteroatom; R2 is a C6-C100 arylene group which contains or does not contain a heteroatom, a linear alkyl group or a cyclic alkyl group; X is an anion selected from a group consisting of F-, Cl-, Br- l-, NO3-, N(CN)2-, BF4-, ClO4-, RSO3-, RCOO-, PF6- (CF3)2PF4- (CF3)3PF3- (CF3)4PF2- (CF3)5PF-, (CF3)6F-, (CF3SO3-)2, (CF2CF2SO3-)2, (CF3SO3)2N- CF3CF2(CF3)2CO-, (CF3SO2)2CH-, (SF5)3C-, (CF3SO2)3C-CF3(CF2)7SO3-, CF3CO2- and CH3CO2-; and n ranges from 2 to 1000; and (c) anode material, which is aniline-based electrochromic material of Formula 4: Formula 4 . The cathode material and anode material is dissolved in non-aqueous solvents. An electrochromic device, a cathode for the electrochromic device and an anode for the electrochromic device are also disclosed.

EFFECT: invention provides excellent cost-effectiveness of the electrochromic device, high drop in optical density and longevity.

10 cl, 7 ex, 4 dwg

FIELD: physics.

SUBSTANCE: invention relates to novel photochromic recording media for three-dimensional (3D) optical memory with photorefractive nondestructive reading of optical information for use in new-generation multilayer optical discs with capacity of more than 1 TB, which enable to create 3D random-access optical memory. Disclosed is a photochromic recording medium for 3D optical memory with nondestructive photorefractive reading of optical information on the wavelength of a helium-neon laser (632.8 nm) in form of a layer which contains a thermally irreversible photochromic compound from a group of diarylethenes of formula (la), (lb), (Ic) and (Id), or from a group of fulgimides of formula (lla) and (llb). The recording medium can additionally contain an optically transparent polymer binder.

EFFECT: photochromic recording medium has high value of photo-induced change in refraction index, which provides reliable and efficient nondestructive reading of optical information.

3 cl, 3 dwg, 2 tbl, 16 ex

FIELD: chemistry.

SUBSTANCE: invention relates to protection from hard UV radiation during sunbathing. The invention employs translucent polymer materials - polymer films, nonwoven polymer materials and polymer sheets, which contain a light stabiliser-filter concentrate in an amount which ensures maximum transmission of UV-A-radiation with wavelength range 320-380 nm and maximum absorption of UV-C- and UV-B-radiation with wavelength range 270-320 nm. Such translucent polymer materials can be used to make different suntan devices: umbrellas, beach or home, with domes made from said translucent material, sun loungers with hoods made from said translucent material, pools, summer houses, pavilions, cafes with roofs made from said translucent material, shared or personal sun booths etc.

EFFECT: invention enables to prevent the harmful effect of UV filters in translucent tanning creams on the skin.

8 cl, 3 dwg, 1 tbl

FIELD: chemistry.

SUBSTANCE: invention refers to UV-absorbing polymer composition that is widely used for production of UV-absorbing polymer films for agriculture and packages, food containers, fibers, fabrics and cloths. It describes UV-absorbing polymer composition with the ratio E308/E524 and/or E360/E524 more than 4. The composition contains organic resin and zinc oxide particles dispersed in organic dispersion medium. The dispersion medium is selected from group including glyceryl monostearate, glyceryl monoisostearate, poluglyceryl stearate, polyglyceryl isostearate, triglyceride and its mixtures. Zinc oxide particles concentration in dispersion is in the range from 40% w/w to 70% w/w from total weight of zinc oxide particles and organic dispersion medium. It also proposes the method of production of said composition, including production of (i) mother stock containing organic resin, organic dispersion medium and zinc oxide particles, and the mixture of mother stock with substrate organic resin, or production (ii) of zinc oxide particle dispersion in organic dispersion medium and direct infusion of medium into substrate organic resin.

EFFECT: effective UF-absorption and transparency to the polymer materials made on its base, as well as sufficient non-toxicity and biodegradability.

18 cl, 6 ex

FIELD: chemistry.

SUBSTANCE: resin is a polyacetylene compound, having a repeating unit of general formula (1) . In formula (1) R1 denotes a naphthalene group, phenanthrene group, pyrenyl group or anthracene group. Each of these four groups is a substituted group selected from: alkyl group, alkoxy group, a SR4 group (R4 denotes a hydrogen atom or an alkyl group), a NR5R6 group (R5 and R6 each denote a hydrogen atom or a group selected from alkyl groups), cyano group, carboxy group, sulphoxyl group, ester group, amide group and COR7 (R7 denotes an alkyl group, having 1-40 carbon atoms), or the following general formula (2) . In formula (2), R2 denotes a naphthalene group or an anthracene group; R3 denotes a phenyl group substituted with a substitute X in position m or position p; and substitute X is a group selected from: alkyl group, alkoxy group, SR4 group (R4 denotes a hydrogen atom or alkyl group), a NR5R6 group (R5 and R6 each denote a hydrogen atom or a group selected from alkyl group), cyano group, carboxy group, sulphoxyl group, ester group, amide group and COR7 (R7 denotes an alkyl group).

EFFECT: production of light regulating material capable of selectively controlling transmission of light in an arbitrary wavelength range from a wide wavelength range.

5 cl, 17 dwg, 1 tbl, 10 ex

FIELD: color-forming compositions and recording material.

SUBSTANCE: claimed composition includes developer containing urea-urethane compound and colorless or light colored leuco dye. Recording material based on this composition also is proposed.

EFFECT: color-forming compositions with improved image conservation ability and increased image intensity.

21 cl, 14 tbl, 153 ex

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