271 results about "Electrochromic devices" patented technology

The utility model relates to a bendable electrochromic device, and belongs to the field of electrochromic devices.The bendable electrochromic device comprises a first transparent base material layer, a first bonding layer fixedly bonded to the lower surface of the first transparent base material layer and a first transparent conductive layer arranged on the lower surface of the first bonding layer, and a reinforcing toughness assembly is arranged on the lower surface of the first transparent conductive layer; the reinforcing toughness assembly comprises a plurality of transverse reinforcing ribs which are fixedly connected to the lower surface of the first transparent conductive layer, and the outer portions of the transverse reinforcing ribs are fixedly connected with a plurality of vertical reinforcing ribs. According to the bendable electrochromic device, the transverse reinforcing ribs and the vertical reinforcing ribs are arranged, so that the toughness of the electrochromic device body during bending is improved, the electrochromic device body is prevented from being broken or damaged in the bending process, and the mechanical durability of the electrochromic device body is good; the performance and the attractiveness of the electrochromic device body are guaranteed, and the advantage of being bendable is achieved.

This disclosure provides compositions of electrochromic dyes, functionalized electrochromic dyes and dye macromers which may be incorporated into electrochromic devices with tailored optical properties. The disclosure provides an electrochromic dye with an attached functionalization group wherein the said dye colors by at least one of oxidation and reduction and contains at least two moieties wherein a first moiety is electrochromic and a second moiety is an electrochromic moiety, an electron donating moiety, or an electron receiving moiety and wherein the functionalization group. This disclosure also provides EC compositions and devices for controlling color.

The embodiments herein relate to electrochromic stacks, electrochromic devices, and methods and apparatus for making such stacks and devices. In various embodiments, an anodically coloring layer in an electrochromic stack or device is fabricated to include a heterogeneous structure, for example a heterogeneous composition and / or morphology. Such heterogeneous anodically coloring layers can be used to better tune the properties of a device.

The invention relates to the technical field of electrochromic devices, in particular to an interface-enhanced gel-based electrochromic device and a preparation method thereof. The interface enhanced gel-based electrochromic device comprises a bottom electrode layer, a first modification layer, a gel electrolyte layer, a second modification layer, an electrochromic layer and a top electrode layer which are arranged in sequence, wherein the first modification layer and the second modification layer are independently modification layers based on catechol or derivatives thereof. According to the interface-enhanced gel-based electrochromic device, the excellent ion migration characteristic of the hydrogel electrolyte is utilized, and the strength and toughness of the electrolyte can be improved. The gel electrolyte layer based on the structure provided by the invention has excellent interface bonding force, and is convenient for ions to quickly migrate under the driving of an external field, so that the electrochromic device has excellent cycling stability.

The invention belongs to the technical field of electrochromic devices, and relates to a flexible electrochromic device for heat management of a curved transparent enclosure structure. The electrode is formed by assembling flexible polyethylene glycol terephthalate-indium tin oxide as transparent conductive electrodes on the two sides to clamp a silver-based gel electrolyte. The device is simple in preparation method, controllable in composition and structure and easy to expand; the deposition quality of silver ions is improved through electrode surface plasma cleaning and modification; by applying and removing voltage, the device has reversible dual working modes: an initial state is a solar heating mode, and at the moment, the device has high sunlight transmissivity; voltage is applied to the device to excite deposition of silver on the outer side electrode, at the moment, a radiation cooling mode is adopted, and at the moment, the device has high sunlight reflectivity and high and medium far infrared emissivity; the device has excellent sunlight modulation capability and mechanical stability, and has great application prospects in the aspect of all-season dynamic thermal management of curved transparent enclosure structures such as buildings and automobiles.

Polymeric ion conductive layers and electrochromic devices utilizing the same are described. The polymeric ion conductive layer may include a polymer having a Shore hardness of greater than 80A, an electrolyte dispersed in the polymer, and a plasticizer dispersed in the polymer. The polymeric ion conducive layer may have no creep at elevated temperatures. The polymeric ion conductive layer may have an ionic conductivity of greater than or equal to about 1E-5 S / cm, a haze of less than 3%, and a light transmission of greater than or equal to about 80%. An electrochromic device may include a first optically transparent layer, a second optically transparent layer, and electrochromic layers including the polymeric ion conductive layer interposed between the first and second optically transparent layers.

Methods for manufacturing curved electrochromic devices by depositing solution-based material directly onto curved surfaces are disclosed. The curved electrochromic device is prepared by spray-coating the first curved electrically conductive substrate with a solution of one or more (cathodic) inorganic or organometallic precursors, and then exposing the coated substrate to near-infrared radiation, UV radiation, or ozone to convert the one or more (cathodic) inorganic or organometallic precursors to (cathodic) electrochromic layers. The second, complimentary electrically conductive curved substrate is coated with a second (anodic) electrochromic layer. An electrolyte layer is incorporated between said first electrochromic layer and said second electrochromic layer, the substrates are sealed together, to form a curved electrochromic device. This method Is especially useful for curved electrochromic devices employing bent tempered glass or heat strengthened glass.

The invention aims at providing an electrochromic device based on ammonium ion aqueous electrolyte and a preparation method and application of the electrochromic device, and belongs to the technical field of electrochromic devices. The transparent conductive glass is composed of a transparent conductive glass substrate layer, an ion storage layer, a hydrogel ion electrolyte layer, an electrochromic layer and a top transparent conductive layer. The electrolyte layer of the electrochromic device based on the ammonium ions adopts the hydrogel ion electrolyte, so that the migration process of the ammonium ions can be effectively promoted, and the long-cycle stability of the electrochromic device based on the ammonium ions is improved. The electrochromic device based on ammonium ions has wide application prospects in the fields of intelligent systems, intelligent windows, intelligent electronic products and the like.

The invention provides a transparent-black electrochromic device and a preparation method thereof, and belongs to the technical field of electrochromic devices. The transparent-black electrochromic device comprises a first transparent conductive electrode, a color-changing active layer and a second transparent conductive electrode which are sequentially arranged, wherein the color-changing active layer comprises a cathode electrochromic material 1, a cathode electrochromic material 2, an anode electrochromic material and electrolyte. According to the invention, proper types of cathode / anode electrochromic materials are selected, and the colors are complemented through a physical blending method, so that uniform and total absorption in a visible region is achieved, and a real transparent-black electrochromic device is obtained.

The invention discloses a metal grid transparent conductive film which sequentially comprises a transparent base material layer, a metal grid layer, a transition layer and a protection layer from bottom to top. The manufacturing method comprises the steps of pretreating the transparent base material, preparing the metal seed layer, performing laser direct writing patterning, performing electroplating thickening to form the metal grid layer, preparing the transition layer and the protective layer, and performing performance test and adjustment. The hexagonal honeycomb grid structure and the arc edge design are adopted, and the problem of metal grid electric field concentration is effectively solved; through the arrangement of the transition layer, the interface bonding force of the metal grid is improved; the protection layer and the transition layer cooperate to improve the corrosion resistance of the film; the problems that an existing transparent conductive material is high in cost, poor in flexibility and insufficient in interface compatibility, and an electrochromic device is concentrated in electric field, short in service life and the like are effectively solved, and the transparent conductive material can be widely applied to building intelligent windows, automobile anti-dazzle rearview mirrors, flexible display panels and other electrochromic devices and has important industrial application value.

The invention relates to the technical field of electrochromism, in particular to an orthorhombic crystal phase Nb18V4O55 electrochromic film and a preparation method and application thereof. The orthorhombic crystal phase Nb18V4O55 electrochromic thin film not only has excellent electrochromic capacity, but also can realize a'warm state 'mode of electrochromic dual-band regulation and control by means of intrinsic properties of materials, meanwhile, has a large optical modulation amplitude, further has the characteristics of rapid dynamic response and high cycling stability, and can be applied to the field of electrochromic devices. Due to the characteristics, the method has commercial application potential in the fields of intelligent windows, display equipment and the like.

The invention belongs to the technical field of color-changing glass windows, and particularly relates to an electrochromic intelligent energy-saving window and a control system thereof.The electrochromic intelligent energy-saving window comprises indoor side glass and outdoor side glass, and a closed cavity is formed between the indoor side glass and the outdoor side glass; a cavity is formed in the outdoor side glass, a master controller is arranged in the cavity, the outdoor side glass is an electrochromic device with controlled infrared reflection, and the master controller is connected with and controls the electrochromic device with controlled infrared reflection.

A quinone-containing polymer includes repeating units of at least one of Formulas (I) to (IV) or a hydrogenated derivative thereof, as defined herein. Methods of manufacturing the quinone-containing polymer are also disclosed. The quinone-containing polymer can be useful in composites, electrode assemblies, electrochemical cells, gas separation systems, energy storage devices, and electrochromic devices.

The invention belongs to the technical field of electrochromic materials, and particularly relates to an electrochromic device with controlled infrared reflection, which comprises a substrate, and a lower electrode layer, an anode color-changing layer, an ion transmission layer, a cathode color-changing layer, an upper electrode layer and a protective layer which are sequentially deposited on the substrate, the upper electrode layer is of a hollow grid-shaped, strip-shaped or annular structure, and the lower electrode layer is of a structure with periodic grooves; the width L and the height H of the groove are equal, and the groove is formed by continuously connecting a plurality of 1 / 4 concave spherical surfaces with the same radius R and a plurality of 2 / 3 convex spherical surfaces with the same radius R.

The invention discloses a reversible metal electro-deposition type electrochromic device with a high response speed. The reversible metal electro-deposition type electrochromic device comprises a first conductive base material, a second conductive base material, a sealant and a reversible electro-deposition solution, the sealant is arranged between the peripheral areas of the first conductive base material and the second conductive base material along the circumferential direction, so that the two conductive base materials are mutually combined in a sealing manner and a cavity is defined; the reversible electrodeposition solution is arranged in the cavity; wherein the reversible electro-deposition solution comprises a reversible metal electro-deposition material and a medium body for promoting metal electro-deposition and dissolution; under the action of external field voltage, the reversible metal electrodeposition material can perform reversible metal electrodeposition and dissolution operation on the surface of the conductive substrate. According to the electrochromic device, rapid switching from a transparent state to a mirror surface state is achieved, stable switching between high reflectivity and high transparency is achieved, and the requirements for high-performance electrochromic devices in the fields of intelligent windows, display equipment, optical switches and the like can be met.

The present application is applicable to the technical field of electrochromism. Provided are an electrochromic-device control method and apparatus, and a storage medium and an electrochromic-device control system. The method comprises: acquiring the degree of aging of an electrochromic device; on the basis of the degree of aging, determining charging parameters corresponding to the electrochromic device; and charging the electrochromic device on the basis of the charging parameters. By means of the method, electrochromic devices with different degrees of aging have corresponding charging / discharging parameters, such that charging parameters having different degrees of aging are used to compensate for the different degrees of aging, and the ranges of transmittance of the electrochromic devices are kept consistent, thereby improving the usage experience for a user.

Prior electrochromic devices frequently suffer from high levels of defectivity. The defects may be manifest as pin holes or spots where the electrochromic transition is impaired. This is unacceptable for many applications such as electrochromic architectural glass. Improved electrochromic devices with low defectivity can be fabricated by depositing certain layered components of the electrochromic device in a single integrated deposition system. While these layers are being deposited and / or treated on a substrate, for example a glass window, the substrate never leaves a controlled ambient environment, for example a low pressure controlled atmosphere having very low levels of particles. These layers may be deposited using physical vapor deposition.

The application discloses a physical vapor deposition device, an electrochromic device and a preparation method thereof, and relates to the technical field of electrochromic devices. The preparation method comprises the following steps: sputtering and depositing an electrochromic layer of WO3 on the surface of a first ITO layer, and the oxygen content is any value in the range of 42.5% to 52.5%; sputtering and depositing a pre-set thickness of a tungsten oxide ion conduction layer on the electrochromic layer, and the oxygen content of the corresponding chamber is any value in the range of 35% to 45%; sputtering and depositing an ion storage layer containing lithium ions on the ion conduction layer; depositing a second ITO layer on the ion storage layer, and obtaining the electrochromic device after vacuum annealing treatment and cooling treatment; wherein the deposition temperature of the second ITO layer is any value in the range of 350 DEG C to 400 DEG C, and the annealing temperature of the vacuum annealing treatment is any value in the range of 450 DEG C to 500 DEG C. The electrochromic device prepared by the application has the characteristics of high transmittance and low sheet resistance.

The invention relates to a counter electrode for an electrochromic device. Embodiments herein relate to electrochromic stacks, electrochromic devices, and methods and apparatus for making such stacks and devices. In various embodiments, an anodically colored layer in an electrochromic stack or device is fabricated to include a heterostructure, e.g., a heterogeneous composition and / or morphology. Such heterogeneous anodically colored layers may be used to better tune the properties of the device.

This application provides a color-tuning driving device and control method for an electrochromic device. A microprocessor receives control signals from a host computer, allowing the color-tuning of the electrochromic device to be programmed via the host computer to control the expected voltage waveform. This effectively solves the problem of color-tuning control stability in electrochromic devices. After receiving the control signal from the host computer, the microprocessor outputs a voltage waveform signal and a duty cycle signal. The voltage waveform signal is amplified by a power amplifier unit and then turned on by a controllable switch unit, serving as the driving voltage for the electrochromic device's color change. The duty cycle signal is input to the gate driving unit, which controls the on-time and off-time of the controllable switch unit based on the duty cycle signal, thereby controlling the on and off-time of the driving voltage of the electrochromic device. This eliminates the need for manual switching of the driving voltage, improving the stability and efficiency of color-tuning in electrochromic devices.

The invention relates to a viologen derivative electrolyte solution with an electrochromic characteristic and a preparation method and application thereof. The electrolyte solution comprises a viologen derivative and ascorbic acid, the viologen derivative is selected from 1-butyl-4, 4 '-dipyridyl or 1-butyl-1'-(2-propenyl)-4, 4 '-dipyridyl, and the viologen derivative is selected from 1-butyl-4, 4'-dipyridyl or 1-butyl-1 '-( The obtained electrolyte solution can be used for preparing an electrochromic device. Compared with the prior art, the obtained electrochromic device based on the viologen derivative electrolyte can realize color conversion from colorless or brown to purple black under relatively small voltage, and has relatively large light modulation amplitude and relatively high response speed.

Thin-film devices, for example electrochromic devices for windows, and methods of manufacturing are described. Particular focus is given to methods of patterning optical devices. Various edge deletion and isolation scribes are performed, for example, to ensure the optical device has appropriate isolation from any edge defects. Methods described herein apply to any thin-film device having one or more material layers sandwiched between two thin film electrical conductor layers. The described methods create novel optical device configurations.

The invention discloses physical vapor deposition equipment, an electrochromic device and a preparation method of the electrochromic device, and relates to the technical field of electrochromic devices. The preparation method comprises the following steps: sputtering and depositing the WO3 electrochromic layer on the surface of the first ITO layer, wherein the oxygen content is any one of 42.5-52.5%; sputtering and depositing a tungsten oxide ion conducting layer with a preset thickness on the electrochromic layer, wherein the oxygen content of the corresponding chamber is any one of 35%-45%; sputtering and depositing an ion storage layer containing lithium ions on the ion conduction layer; a second ITO layer is deposited on the ion storage layer, and the electrochromic device is prepared after vacuum annealing treatment and cooling treatment; wherein the deposition temperature of the second ITO layer is any one value from 350 DEG C to 400 DEG C, and the annealing temperature of the vacuum annealing treatment is any one value from 450 DEG C to 500 DEG C. The electrochromic device prepared by the invention has the characteristics of high transmittance and low sheet resistance.

The invention relates to the technical field of electrochromic devices, in particular to a slip ring fastening double-network hydrogel-based electrochromic device and a preparation method thereof. The slip ring fastening double-network hydrogel-based electrochromic device comprises a first electrode, an electrochromic layer, a double-network structure gel electrolyte layer and a second electrode which are arranged in sequence, the double-network structure gel electrolyte layer comprises a double-network structure formed by five-membered ring sodium alginate and long-chain polyvinyl alcohol through interpenetration, and a slidable annular organic matter binding the double-network structure. The slidable annular organic matter is introduced into the interpenetrating double-network gel electrolyte, the purpose is to bind double networks together, the elasticity of the electrolyte is improved, the mechanical toughness, strength and Young modulus of the electrolyte are improved, molecules of an annular structure can slide in the stretching or compression process, and therefore the elasticity of the electrolyte is improved. Therefore, the gel layer is prevented from being broken or damaged due to stress concentration.

The invention belongs to the technical field of electrochromic devices, and particularly relates to a silicon dioxide gel integrated electrochromic device and a preparation method thereof. The integrated electrochromic device is of a three-layer structure which is a transparent conductive substrate, color-changing gel and a transparent conductive substrate. The color-changing gel is composite gel of silicon dioxide gel and a metal oxygen cluster material, proper redox equilibrium species and ionic liquid are added, and an integrated electrochromic device with high optical contrast and ultra-long cycle stability is obtained.

Thin-film devices, for example electrochromic devices for windows, and methods of manufacturing are described. Particular focus is given to methods of patterning optical devices. Various edge deletion and isolation scribes are performed, for example, to ensure the optical device has appropriate isolation from any edge defects. Methods described herein apply to any thin-film device having one or more material layers sandwiched between two thin film electrical conductor layers. The described methods create novel optical device configurations.

According to the color modulation driving device of the electrochromic device and the control method of the color modulation driving device, the control signal of the upper computer is received through the microprocessor, so that the color modulation of the electrochromic device can be programmed through the upper computer on the expected voltage waveform, and the problem of color modulation control stability of the electrochromic device can be effectively solved; after receiving a control signal of an upper computer, the microprocessor can output a voltage waveform signal and a duty ratio signal according to the control signal, the voltage waveform signal is conducted through the controllable switch unit after being subjected to power amplification through the power amplification unit, and the voltage waveform signal can serve as driving voltage for color change of the electrochromic device; after the duty ratio signal is input into the gate driving unit, the gate driving unit controls the on time and the off time of the controllable switch unit according to the duty ratio signal so as to control the on and off of the driving voltage of the electrochromic device, manual switching of the driving voltage is not needed, and the stability and the efficiency of color modulation of the electrochromic device are improved.

The present invention discloses two aromatic ester electrochromic materials with helical dipropyldioxythiophene as the core, and applies them to electrochromic devices. Compared with traditional aromatic ester electrochromic materials, the two novel electrochromic materials with dipropyldioxythiophene as the core designed by the present invention have the advantages of simple synthesis route, low cost, simple device preparation, high optical contrast, fast response rate, good cycle stability, etc., and have potential application value.

The invention provides a solid electrolyte, a preparation method thereof and an electrochromic device, and belongs to the technical field of electrochromic devices. Vanadium-based oxide is added as a catalyst, and a mixed solution of a cross-linking agent containing carbon-carbon double bonds, an electrolyte salt, an ionic liquid, a curing agent, a first solvent and a second solvent is thermally cured to prepare the solid electrolyte. The curing agent is at least one of an amine curing agent, an anhydride curing agent or a thiol curing agent. The solid electrolyte obtained by thermocuring has the characteristics of high transparency, good flexibility and high stripping force, can form a film with the thickness of less than 100 microns, and is suitable for preparing a flexible electrochromic device; the electrochromic device prepared from the solid electrolyte is relatively good in cyclic aging stability.

The present disclosure describes electrochromic devices comprising transparent conductive layer acting as an electrode, an active electrochromic film, an ion conductor, and an ion storage film at least one of which comprises at least one MXene material.