111 results about "Gel electrode" patented technology

The invented non-invasive vital signs monitor is in a flexible, nominally flat planar form having integral gel electrodes, a sticky-back rear surface, an internal flex circuit capable of sensing, recording and playing out several minutes of the most recently acquired ECG waveform data and a front surface that includes an outplay port. The invented non-invasive body composition ‘risk’ monitor includes a measurement device for monitoring one or more variables including body fluid mass, dehydration, respiratory rate, blood pressure, bio-impedance, cardiography such as cardiac output, and body conformation parameters. The risk monitor may be provided in a lightweight carrying case into which the vital signs monitor plugs. Thus the two monitors may be independent or they may be integrated into one portable, non-invasive device that can convey important patient data to / from a remote patient medical data center via wireless telemetry for oversight, treatment and possible intervention by a physician.

The invented non-invasive vital signs monitor is in a flexible, nominally flat planar form having integral gel electrodes, a sticky-back rear surface, an internal flex circuit capable of sensing, recording and playing out several minutes of the most recently acquired ECG waveform data and a front surface that includes an outplay port. The invented non-invasive body composition ‘risk’ monitor includes a measurement device for monitoring one or more variables including body fluid mass, dehydration, respiratory rate, blood pressure, bio-impedance, cardiography such as cardiac output, and body conformation parameters. The risk monitor may be provided in a lightweight carrying case into which the vital signs monitor plugs. Finally, a lightweight portable probe or transducer containing a transmissive or reflective electro-optical emitter and receptor in the infrared spectrum is fitted on a subject's finger or toe. Associated electronics energize and monitor the probe, detect cardio-rhythmic fluctuations therefrom, and process digital data over a prescribed window to produce a non-invasive, qualitative or quantitative measure of the subject's circulation. In accordance with one embodiment of the invention, a simple tri-color LED array is used to indicate the subject's circulation as being normal, reduced, or borderline. Thus the vital signs, bio-impedance, and circulation monitors may be independent or they may be integrated into one portable, non-invasive device that can concurrently monitor and locally display or remotely convey important patient data including circulation data to a local subject or physician or to / from a remote patient medical data center via wireless telemetry for oversight, treatment and possible intervention by a remote physician.

An electro-stimulation system is provided with a compact power and control assembly and a plurality of shaped gel electrode patches with instructions to facilitate user administration of therapy.

An adhesive-mountable head-wearable EEG apparatus is disclosed. The apparatus includes an EEG sensor for acquiring an EEG signal of a wearer, a central processing unit for receiving the EEG signal, a small circuit board including the EEG sensor and the central processing unit, and a compact enclosing shell for enclosing the small circuit board, the EEG sensor, and the central processing unit. An adhesive electrode assembly attaches to the compact enclosing shell, or to the small circuit board within the enclosing shell, via snaps or magnets. The adhesive electrode assembly includes two or more gel electrodes for acquiring an EEG signal, and for adhering to the forehead so as to wearably support the EEG apparatus on the forehead. The compact enclosing shell includes chamfered edges, and is sized so as to reduce lateral forces on the compact shell that would tend to detach the EEG apparatus from the wearer's forehead.

A cell separation apparatus comprises a means for moving a cell within a cell separating space by applying an electrical voltage to cells in the cell separating space using gel electrodes, and channels for separating and discharging the cell, which thus does not damage a cell sample and prevents the exhaustion of an electrode due to its electrolysis.

The invention relates to a preparation method and application of a three-dimensional ordered macroporous (3DOM)-Fe2O3 / carbon aerogel (CA) electrode under a neutrality condition. On the surface of a CA electrode, 3DOM-Fe2O3 is deposited on the surface of the CA electrode according to the methods of vertical dipping, solvent evaporation and template calcination, so that the 3DOM-Fe2O3 / CA electrode is obtained. The 3DOM-Fe2O3 / CA electrode can be used for Electro-Fenton cathode rapid degrading of pollutants difficult to biodegrade in wastewater. Compared with the prior art, the preparation method and application of the 3DOM-Fe2O3 / CA electrode have the advantages that CA high in specific area, electrical conductivity and adsorption capacity is selected as a substrate, meanwhile, the CA is loaded with the 3DOM-Fe2O3, solar absorbing photocatalytic performance is achieved, good Electro-Fenton catalytic activity is also achieved, Electro-Fenton and the photocatalysis technology are combined for use, and energy consumption is reduced while Electro-Fenton activity is improved. The method is easy and simple to implement and low in cost, is an efficient and energy-saving new technology, and has high economic and social benefits in the actual application aspect.

The invention discloses a lamination type energy-storable solar battery, which is characterized in that: a secondary battery is laminated on a lamination type solar battery; the secondary battery is a lithium ion battery and is provided with a charge control circuit; and all the components are packaged through flexible plastic. The prepared lamination type energy-storable solar battery integrates the solar battery and the lithium ion battery so as to reduce external circuits, improve the compactness, reduce the volume, reduce wire jumper and also ensure high conductivity; and through application of a gel electrode and a plastic packaging process, the moisture resistance is improved, and foldability is achieved. During preparation, a back electrode layer of the solar battery also bears an anode current collector of the lithium ion battery, so that materials can be saved, and the conductivity can be improved at the same time; and an anode active layer, a diaphragm and a cathode active layer of the lithium ion battery can be prepared into sheets in advance to facilitate compounding during the preparation and realize continuous production.

The invention discloses a system for removing nitrate nitrogen in water in an electro-catalysis mode through a coupling biology positive electrode, and belongs to the technical field of water quality purification and energy recycling. The system is characterized in that tetrabutyl titanate and a metal salt solution are hydrolyzed into gel under the acidic condition, a carbon fiber sheet basement is coated with the gel, and the metal-doping TiO2 gel electrode is obtained with a roasting method. Electrons and protons which are generated when current-producing bacteria in the biology positive electrode degrade organic pollutants are used for a negative electrode to reduce the nitrate nitrogen in the electro-catalysis mode, and the nitrate nitrogen is reduced into nitrogen to be removed from a water body without any additional substance and energy consumption. The system has the advantages that the cost of a cathode catalyst is reduced, the electrons and the protons which are generated when the current-producing microorganisms of the biology positive electrode degrade the organic pollutants are used for the reduction reaction of the negative electrode, an additional power source is avoided in the reaction, no additional substance needs to be added into the reaction system, cost is saved, and the aims of saving energy and protecting the environment are achieved.

To provide a polymer actuator which is light in weight and capable of linear expansion and contraction with a low voltage. The polymer actuator 1 is composed of a plurality of gel / electrode complexes arranged in an electrolytic aqueous solution 6, said gel / electrode complex being composed of a polymer gel (2a, 2b) containing at least either of acidic or basic functional groups and electrodes (3a, 3b) placed in the polymer gel, said electrodes being made of a material capable of occluding and releasing hydrogen electrochemically, such that the polymer gel (2a, 2b) in the gel / electrode complex changes in pH upon application of voltage across the electrodes (3a, 3b) of the gel / electrode complexes (4a, 4b) and each of the gel / complexes changes in volume in response to the pH change.

An electro-stimulation system is provided with a compact power and control assembly and a plurality of shaped gel electrode patches with instructions to facilitate user administration of therapy.

The invention provides a preparation method of a Fe-FeOx / carbon aerogel self-supporting cathode and a heterogeneous electro-Fenton methyl orange degradation system, belonging to the technical field of preparation of environmental electrochemical materials and treatment of advanced oxidation techniques. A Fe-FeOx / carbon aerogel electrode is prepared by virtue of a one-step sol-gel synthesis method and is taken as a cathode; a Ti / RuO2-IrO2 electrode is taken as an anode; and methyl orange is degraded in the precise of an additional power supply. Heterogeneous electro-Fenton has a relatively wide pH value range and is suitable for various actual wastewaters; the prepared electrode forms a block body and does not need to be subjected to complex post-processing such as tabletting; H2O2 can be produced in situ, so that the dangers during transportation and storage are avoided, and the cost is lowered; the precipitation of iron is limited, and the catalyst can be recycled; by taking electrons as a reaction agent, the process is clean and environmentally friendly; and beside an catalytic oxidation effect, an electrode material has synergistic effects such as adsorption.

The invention provides a method for preparing nitrogen-doped graphene aerogel by simultaneously using SiO2-NH2 as a template and a nitrogen doping agent. Amino functionalized silica (SiO2-NH2) is used as the template to prevent the stacking of graphene sheets, and is also used as the doping agent. A result of analysis of the microstructure, the porousness and the chemical composition of graphene through SEM, TEM, XRD spectrum, Raman, XPS and BET technologies shows that the content of the SiO2-NH2 has a remarkable influence on the surface area and the carbon activity of the graphene sheets. A 3D layered porous graphene gel electrode has excellent electrochemical performances due to the large specific surface area of 481.8 m<2>g<-1> and high nitrogen doping content (4.4%), has an ultrahigh specific capacitance of 350 F g<-1> under a current density of 1 A g<-1>, and has good reversibility after 5000 cycles in aqueous and organic electrolytes, and the cycle efficiency is 92.8%. Additionally, the N-doped graphene aerogel has high oil absorbency and good recoverability. The method has the advantages of simple steps, convenience in operation, and high practicality.

The invention relates to a graphene-based flexile self-support mixed gel electrode and a preparation method thereof. In preparation, graphene oxide is reduced by adopting a hydrothermal method firstlyto obtain a graphene dispersion liquid; next, an active material and the graphene dispersion liquid are mixed uniformly to obtain a mixed dispersion object; and finally, the mixed dispersion object is subjected to suction filtration and washing to obtain the graphene-based flexile self-support mixed gel electrode. Compared with the prior art, graphene is adopted in the invention to replace a conductive agent, a binder and a current collector in the conventional electrode, so that the a self-support mixed gel electrode thin film with high flexibility is obtained; and the electrode has excellent specific capacity and rate capability, can be applicable to multiple active materials and solution systems, and has relatively high application prospect in the fields of a battery, a supercapacitorand other energy storage systems or other functional composite materials.

The invention belongs to the technical field of intelligent electronic devices, and particularly relates to a high-elasticity electroluminescent fiber and a preparation method thereof. The method comprises preparing a frozen cross-linked hydrogel ion conductor as a transparent and high-elasticity electrode; and preparing a polydimethylsiloxane oligomer-electroluminescent powder mixed light-emitting active material with extrusion formability to be further cured and formed after extrusion. The multi-channel parallel extrusion needle head is designed, so that the light-emitting active layer is wrapped with two gel electrodes which are arranged in parallel, and the viscosity of the mixed light-emitting active material can ensure that the extruded fiber structure does not deform after the viscosity of the mixed light-emitting active material is controlled. The polydimethylsiloxane and the conductive gel have high elasticity, and the final luminescent fiber can still keep normal work when the tensile strength reaches up to 800%, the stable circulating tensile quantity can reach 300%, the cycling stability is more than 100 times, and the highest luminous brightness reaches 242. 6cd / m2. The light-emitting fibers can be further woven into clothes, and have very high wearing comfort and attractive light-emitting effects.

Provided are a solid electrolyte composition containing a low-molecular-weight gellant, an inorganic solid electrolyte having conductivity of ions of metals belonging to Group I or II of the periodic table, and a dispersion medium, a mixture, complexed gel, an electrode sheet for an all-solid state secondary battery, and an all-solid state secondary battery for which the solid electrolyte composition, the mixture, and the complexed gel are used, and methods for manufacturing an all-solid state secondary battery, complexed gel, an electrode sheet for an all-solid state secondary battery, and an all-solid state secondary battery.

The invention relates to a preparation method of an ion liquid gel-based all-gel supercapacitor. The preparation method comprises the following steps of performing mixing and grinding on a carbon nanotransistor and an ion liquid, and then enabling PVDF-HFP and acetylene black to be mixed, and carrying out high-temperature stirring and then solvent evaporation to obtain a gel electrode; performingmixing on a monomer, a crosslinking agent and the high-electrical conductivity ion liquid at the room temperature, and next, adding a photoinitiator to perform glue forming under ultraviolet light toobtain an ion gel electrolyte; and coating the upper and lower surfaces of the ion gel electrolyte with the gel electrodes uniformly through a coating mode, and carrying out high-temperature drying toobtain an integrated all-gel material with a gel electrode-gel electrolyte-gel electrode sandwich structure, and by adopting an aluminum foil as a current collector to be connected with an external circuit to obtain the product. Compared with the prior art, the electrode-electrolyte interface electron-ion conduction capability is reinforced, so that fusion of the electrode-electrolyte interface is promoted, interface resistance is lowered, and the tolerant temperature range is wider.

The present invention relates to a copper-iron-carbon aerogel electrode preparation method. According to the method, resorcinol, formaldehyde, water, sodium carbonate, iron acetylacetonate and copper acetate monohydrate are uniformly mixed in a reaction container according to a certain ratio, a polymerization reaction is performed for a certain time at a certain temperature to prepare a wet gel, the wet gel is dried, programming heating and cooling is performed to prepare the copper-iron-carbon aerogel electrode, and the prepared copper-iron-carbon aerogel electrode is activated sequentially through CO2 and N2 so as to be used as the cathode in the degradation pool to degrade organic pollutants such as dimethyl phthalate and the like. Compared to the method in the prior art, the method of the present invention has advantages of simple preparation process, high activity, low treatment cost for degradation of organic pollutants such as DMP and the like, simple treatment process, flexible degradation, and the like.

The invention belongs to the technical field of water treatment new materials, and particularly relates to a preparation method and application of a three-dimensional ordered macro-porous alpha-Fe2O3 / graphene aerogel electrode. The preparation method comprises the following steps: I, preparing graphene aerogel; II, performing self-assembly of a polystyrene hard template; III, preparing the three-dimensional ordered macro-porous alpha-Fe2O3 / graphene aerogel electrode through high temperature calcining. The three-dimensional ordered macro-porous alpha-Fe2O3 / graphene aerogel electrode obtained bythe invention has a three-dimensional ordered macro-porous structure which provides a good channel for improving material transmission and lowering mass transfer resistance. The three-dimensional macro-porous structure can also improve the light absorbing efficiency through multiple scattering and the slow light effect, and the photocatalytic capability can be improved to further accelerate the circulation of iron ions in order to realize further improvement of Fenton activity of alpha-Fe2O3.

The invention relates to a gel electrode, a full-gel-state ion thermoelectric supercapacitor and a preparation method of the full-gel-state ion thermoelectric supercapacitor. The gel electrode is a carbon nano tube CNTs / polyacrylamide PAM hybrid gel electrode. The capacitor comprises the gel electrode. The preparation method of the gel electrode comprises the following steps: mixing an acrylamidemonomer, an initiator and a cross-linking agent with a carbon nanotube dispersion liquid, stirring, and carrying out thermocuring, and is low in cost, simple in process and suitable for large-scale production. The obtained full-gel-state ion thermoelectric supercapacitor has good electrochemical stability, can be used as an energy storage device, can achieve conversion between heat energy and electric energy through the specific thermoelectric performance of the supercapacitor, and is expected to be applied to collection and reutilization of low-order waste heat as an energy conversion device.

The invention discloses a composite electrode, and preparation and application thereof in electric field detection. The composite electrode comprises an electrode substrate and a P-rGO composite material, wherein the P-rGO composite material consists of a P-rGO two-dimensional thin film and P-rGO three-dimensional aerogel, and the P-rGO two-dimensional thin film and the P-rGO three-dimensional aerogel contain carbon, oxygen, sulfur and zinc. The preparation for the composite electrode comprises the following steps that: 1) preparing the substrate; 2) preparing the P-rGO aerogel; and 3) preparing a P-rGO aerogel. The preparation for the detection device comprises the following steps that: 1) preparing a sensing device; and 2) assembling the detection device. The composite electrode preparedby the invention has high electrochemical performance, anti-vibration performance and self-healing performance, the sensing device has good stability, the detection ability of the sensing device fora space electric field is superior to the detection ability of a common plane-parallel capacitor type sensing device, and the detection device has the advantages of being small in volume, low in cost,convenient in mass production and the like.

Characters of the preparation method are that RF hydrogel is prepared through gelatinization procedure by using resorcin and formaldehyde as reactant as well as by using polyacid in fattygroup or hydroxy of polyacid in fattygroup, or amido substitutional derivative, or admixture of above substances as additive; aerogel of charcoal of electrode material for super capacitor is obtained through drying and charring procedures under action of ammonia, or nitrogen and normal pressure. The invention reduces requirement and condition of posttreatment for preparing aerogel of charcoal, eliminates step for replacing solvent and supercritical dryness so as to shorten gelatinating time. The invention simplifies preparation procedure and method, and obtains electrode material in high performance.

The invention provides a preparation method of a graphene-nanometer silver hydrogel electrode. The preparation method comprises following steps; an oxidized graphene solution, a silver nitrate solution, and a trisodium citrate solution are mixed, reaction is carried out so as to obtain the graphene-nanometer silver hydrogel electrode; the concentration of the trisodium citrate solution is controlled to be 1.8 to 2.2mol / L, the concentration of the silver nitrate solution is controlled to be 4 to 6mg / ml, and the volume ratio of the oxidized graphene solution to the silver nitrate solution to thetrisodium citrate solution is controlled to be (3-7) : (0.1-0.3) : (0.15-1.0). According to the preparation method, nanometer silver particles are introduced into oxidized graphene gel, so that the electrical conductivity of the graphene-nanometer silver hydrogel electrode is increased obviously; and in addition, nanometer silver is capable of providing binding sites of sulfhydrylation biologicalprobes, fixing the probe in a hydrogel electrode, and is beneficial for biological detection of the electrode.

The invention provides a preparation method of a flexible transparent ionic gel electrode, which comprises the following steps: S1) carrying out polymerization reaction on a first acrylamide monomer and / or a first acrylic monomer in the presence of a cross-linking agent to obtain a polymer with a network structure; S2) fully soaking the polymer with the network structure in a solution containing a second acrylic monomer and / or a second acrylamide monomer for fully swelling, and then conducting heating for polymerization reaction to obtain a polymer with a dual-network structure; and S3) fully swelling the polymer with the double-network structure in an ionic solution to obtain the flexible transparent ionic gel electrode. Compared with the prior art, the preparation method is simple, and the prepared electrode has the characteristics of transparency, softness, high mechanical property and high conductivity, still has relatively high conductivity at low temperature, and can be applied to the field of electronic equipment such as flexible sensors and wearable equipment in an extreme environment.

The invention discloses a carbon aerogel electrode for a capacitive deionization device: the electrode is of a laminated sandwich structure; a first separation net layer, a first carbon aerogel layer, a current collector layer, a second carbon aerogel layer and a second separation net layer are laminated from bottom to top successively to form the electrode and are closely stitched into a whole by stitching lines; the first carbon aerogel layer or the second carbon aerogel layer is mainly composed of carbon aerogel particles. A preparation method is also disclosed. The electrode provided by the invention can be assembled in a curly type or plane type way to be made into a CDI module. The aerogel electrode prepared by the method has the advantages of good integrity, high mechanical strength, and strong electrical conductivity, and can be curled. The method has no addition of a binder, and not only avoids the blockage of pores, but also ensures the electrical conductivity, specific capacitance and blocking property of the aerogel. The electrode is used for preparation of the capacitive deionization device which is used for desalting treatment of water, or removal of harmful ions such as heavy metal ions and fluorine ions in water and reduction of hardness.

The invention discloses a gel electrode assembly for a massager, a massage head and a neck massager. The gel electrode assembly comprises a carrier and a gel electrode slice suitable for being in contact with the skin of the human body, wherein the carrier is suitable for being detachably connected with a machine body of the massager; and the carrier is installed on the machine body. The gel electrode slice is borne by the carrier; the gel electrode slice is synchronously connected with and separated from the machine body along with the carrier under the bearing of the carrier; adhesive forcebetween the gel electrode slice and the carrier is greater than adhesive force between the gel electrode slice and the skin of the human body; and connecting force between the carrier and the machinebody is greater than the adhesive force between the gel electrode plate and the skin of the human body. According to the gel electrode assembly in the embodiment of the invention, the gel electrode plate is attached to the skin of the human body, so that while the wearing comfort of a user can be improved, the reliability of the massage head can be guaranteed.

The invention provides a preparation method and a preparation container of a boron alkene and graphene composite aerogel electrode plate. The preparation method comprises the following steps: preparing boron alkene powder; and preparing the boron alkene and graphene composite aerogel electrode plate by using the boron alkene powder and the graphene oxide solution. The problem of structure instability after boron alkene loses metal substrate support is solved, the properties of boron alkene are fully utilized, boron alkene and graphene are combined to form a heterojunction, and the boron alkene / graphene heterojunction aerogel electrode plate is prepared and applied to a lithium ion battery negative electrode. The prepared aerogel electrode plate has excellent conductivity, an additional collector electrode is not needed in a battery, and the synthesized boron-alkene / graphene aerogel electrode plate has large specific capacity which is improved by 39% compared with a graphene skeleton without addition of boron-alkene. And meanwhile, the aerogel electrode plate is relatively good in high-rate charge-discharge performance.

The invention discloses a massager and a massage assembly thereof. The massage assembly of the massager comprises an electrode installing seat, a gel electrode plate and a luminescent element, whereinthe gel electrode plate is a light-transmitting element, is arranged on the surface of the electrode installing seat, and is suitable for being in contact with the skin of the human body; the luminescent element is arranged between the electrode installing seat and the gel electrode plate, and is connected with at least one of the electrode installing seat and the gel electrode plate; and light emitted by the luminescent element is suitable for penetrating through the gel electrode plate. Therefore, the massage assembly can achieve a phototherapy effect, and meanwhile, the fitness with the skin of a user is good.

A cell separation apparatus comprises a means for moving a cell within a cell separating space by applying an electrical voltage to cells in the cell separating space using gel electrodes, and channels for separating and discharging the cell, which thus does not damage a cell sample and prevents the exhaustion of an electrode due to its electrolysis.

The invention discloses a preparation method of tannic acid-polypyrrole-graphene oxide composite gel, which comprises: adding pyrrole to a tannic acid aqueous solution, carrying out a stirring treatment at a temperature of 0-4 DEG C, adding graphene oxide, carrying out a secondary stirring to obtain a tannic acid-pyrrole-graphene oxide blended solution, then adding an iron salt aqueous solution into the blended solution obtained in the step 1), and carrying out standing treatment to obtain the tannic acid polypyrrole graphene oxide composite gel electrode material. The preparation method provided by the invention is simple, does not need complex equipment or organic solvents, does not pollute the environment, adopts easily available raw materials, can meet different application requirements, and is convenient to popularize, and the obtained composite electrode material can be used for preparing a supercapacitor and shows excellent specific capacitance and cycling stability.