139 results about "Ion transfer" patented technology

A bias-free driven ion-based photoelectrochemical wastewater treatment system and method is disclosed. Through an ion-coupled photogenerated electron-assisted photocatalytic oxidation-reduction pathway, the system achieves efficient treatment of high-salinity wastewater. The system employs electron-ion receptor materials as the counter electrode, providing reaction sites to drive the coupling of photogenerated electrons and cation transfer. Additionally, the voltage generated by the system directly drives hole oxidation to produce strong oxidizing free radicals. Furthermore, this ion-based photoelectrochemical system demonstrates excellent degradation performance in high-concentration chloride media. This indicates that, in addition to cations (such as Na+) helping to accelerate the electron transfer rate, the presence of Cl− further enables efficient and sustainable wastewater treatment. The concept proposed in this invention emphasizes the potential for using abundant sodium chloride in seawater as an inexpensive additive for wastewater treatment.

The invention relates to the technical field of energy storage, and discloses a charge-discharge control device and method for a flow battery, and the device comprises a circulation mechanism which is used for storing and transporting positive and negative electrolyte, and is also used for realizing ion transfer by using a diaphragm or an ion exchange membrane, so as to realize charge-discharge operation; the flow slowing mechanism is arranged on the periphery of the circulating mechanism and is used for adjusting the flow velocity and the flow of the positive electrode electrolyte and the negative electrode electrolyte when being continuously extruded, so that the charging and discharging efficiency of the battery is adjusted; and the adjusting mechanism is arranged on the outer side of the flow slowing mechanism and is used for automatically controlling the extrusion degree of the flow slowing mechanism so as to automatically adjust or stop the flow velocity and flow of the positive and negative electrolyte. According to the invention, through precise flow rate regulation and control, intelligent charging and discharging management and multi-level fault monitoring, battery charging and discharging efficiency improvement, energy optimization management and safe and stable operation and remote intelligent operation and maintenance of the system are realized.

A three terminal neuromorphic synaptic device and a method for manufacturing the same are provided. The three terminal neuromorphic synaptic device includes a substrate, source / drain electrodes provided on the substrate, a channel region electrically connected between the source electrode and the drain electrode, an ion transfer layer provided on the channel region, a gate electrode provided on the ion transfer layer, and a voltage application unit to apply a gate voltage to the gate electrode. The ion transfer layer includes an electrolyte material to transfer an active ion of the gate electrode between the gate electrode and the channel region, in response to the gate voltage applied to the gate electrode. The voltage application unit adjusts a resistance and a conductance of the channel region by changing an amount of active ions accumulated in the channel region, depending on the number of times that the gate voltage is applied.

The invention discloses a sodium ion battery negative electrode material heterostructure, a construction method and a performance prediction method, and belongs to the technical field of electrochemical energy storage, Nb atoms are replaced by Ge or Sn to obtain Nb < 1-x > AxCO2, and then the Nb < 1-x > AxCO2 is compounded with 2D SiC to construct a SiC / Nb < 1-x > AxCO2 heterostructure, so that a sodium ion battery negative electrode material with improved electrochemical performance is obtained. The single-layer Nb2CO2 MXene provides good electronic conductivity and structural stability for the negative electrode material, and the introduction of SiC ensures excellent structural stability and high theoretical capacity; a heterostructure interface formed by SiC and Nb < 1-x > A < x > CO2 plays an important role in promoting electron conductivity and Na ion transfer. Due to the fact that Ge and Sn are close to C in electronegativity, the strength of A-C bonds formed between alloy elements and C is larger than that of Nb-C bonds, the stability of the heterostructure is enhanced, and the integrity of the electrode structure is kept.

The invention discloses an adhesive tape losing adhesion after being electrified as well as a preparation method and application thereof, and relates to an adhesive material. The preparation method comprises the following steps: preparing an octahedral ligand modified CNC compound, weighing acrylate copolymer matrix resin, a dipole response acrylate monomer, a solvent and a dispersant according to a ratio, mixing, adding a photoinitiator, carrying out UV pre-polymerization under nitrogen protection, adding an ion transmission medium, tackifying resin and an anti-precipitation agent, heating, carrying out high-speed shearing emulsification, and cooling to obtain the dipole response modified CNC composite. Adding an octahedral ligand modified CNC (Computer Numerical Control) compound, and reacting to obtain an adhesive; and coating the PET release film subjected to plasma treatment with the adhesive, performing hot air drying, adhering the PET release film subjected to plasma treatment to the other surface of the adhesive layer, and performing secondary UV curing to obtain the adhesive tape without adhesion after electrification. The adhesive tape without adhesion after electrification has the advantages of strong adhesive force, sensitive response, obvious difference of stripping force before and after electrification, no stripping residue, stable circulation, less electrification loss and the like.

The invention relates to a high-entropy eutectic electrolyte, a preparation method thereof and an electrochemical device, and the high-entropy eutectic electrolyte is mainly formed by mixing a lithium salt, a solvent and a diluent, the solvent is at least one of sulfone, sulfanilamide, dinitrile and carbonate. The invention further comprises the preparation method of the high-entropy eutectic electrolyte. The electrochemical device comprises a high-entropy eutectic electrolyte, a positive electrode, a negative electrode and a diaphragm. According to the invention, the defects of high viscosity and poor wettability of an aprotic eutectic solvent can be overcome, the diluent is added to form a local eutectic solvent, and the obtained electrolyte has the characteristics of better solubility, low viscosity, wide electrochemical stability, low flammability or inflammability, wide temperature range, high lithium ion transfer number, good ionic conductivity and the like; the method has practical application value in electrochemical devices such as supercapacitors, batteries and sensors.

A mass spectrometry system that includes first and second ion sources that produce ions, the ions produced by the second ion source being calibration ions to calibrate the mass spectrometry system; an ion transfer device that receives the ions as a continuous stream during a first time period and forms a first ion packet as a single ion packet, such that during a second time period when the ion transfer device delivers the first ion packet, it receives the ions as a continuous stream to form a second ion packet by accumulating the incoming ions in another single ion packet, such that the ion transfer device separately delivers the formed ion packets at a frequency in a range from 1 to 1000 Hz; and a mass analyzer that separates the ions in the ion packets based on the mass-to-charge ratio of the ions.

The invention provides a composite solid electrolyte. The composite solid electrolyte comprises lithium lanthanum zirconium oxide powder and a lithium phosphate-containing protective layer. The average particle size of the lithium lanthanum zirconium oxide powder is less than 500nm. And the lithium phosphate-containing protective layer coats the outer surface of the lithium lanthanum zirconium oxide powder. The composite solid electrolyte is based on the solid electrolyte, so that the defects of liquid electrolyte volatilization, leakage, instability in high-temperature use and the like can be avoided. The composite solid electrolyte also comprises a lithium phosphate-containing protective layer, so that the composite solid electrolyte has the property close to a liquid state and / or a colloidal state, and the wettability and the like are improved. The composite solid electrolyte has good performance, such as high ion transfer efficiency, high mechanical strength, high stability, low resistance value and the like, and does not deteriorate after being used for a long time. And the composite solid electrolyte is easy for subsequent operation and application.

The invention provides a composite positive electrode material and a preparation method thereof, a positive plate and a lithium ion battery. The composite positive electrode material comprises a lithium-rich manganese-based positive electrode material and a perovskite type oxide coated on the surface of the lithium-rich manganese-based positive electrode material, the chemical formula of the perovskite type oxide is Li2x-ySr1-xZr1-yNbyO3, x is equal to 3y / 4, and y is equal to 0.5-0.7. The perovskite type oxide has relatively high ionic conductivity, a relatively wide electrochemical platform and a stable structure, and is coated on the surface of the lithium-rich manganese-based positive electrode material, so that on one hand, the contact between the lithium-rich manganese-based positive electrode material and an electrolyte is reduced, the generation of side reactions is reduced, and the service life of the lithium-rich manganese-based positive electrode material is prolonged; and on the other hand, the first coulombic efficiency can be improved. And the conductivity of the lithium-rich manganese-based positive electrode material can be improved, the lithium ion transfer impedance of a liquid phase and a solid phase can be reduced, and the rate capability can be enhanced.

The invention belongs to the technical field of thermal batteries, and particularly relates to a preparation method and application of a copper fluoride-based heterojunction thermal battery positive electrode material. According to the invention, fluorides with different phases and different band gaps are utilized to form a heterogeneous interface microcosmically, an electron circulation directional electric field is formed at the inhibition interface, migration of electrons and ions is accelerated, and the ion characteristics of the fluorides are improved. According to the thermal battery positive electrode material provided by the invention, the voltage of a unit battery can be remarkably increased, charge and ion transfer of the positive electrode material can be improved, so that the material can bear large pulse current and has relatively high specific capacity, and the material has good adaptability to existing electrolytes in the market at present and has a relatively high voltage platform and relatively high specific capacity. According to the invention, the conductivity of the reaction product is further enhanced by using the copper elementary substance generated by the preferential reaction of copper fluoride, and an ion transmission channel is constructed by using the copper elementary substance generated by the preferential reaction of copper fluoride as a support frame, so that the copper fluoride-based composite material has high-potential and high-power discharge capability.

The invention relates to a single-ion conductor polymer electrolyte and a preparation method thereof, the single-ion conductor polymer electrolyte comprises a structural unit as shown in the following formula: # imgabs0 #, R1, R2, R3, R4, R5, R6, R7 and R8 are respectively and independently selected from H or-SO2N-(Li < + >) SO2CF3, and at least one group in R1, R2, R3, R4, R5, R6, R7 and R8 is-SO2N-(Li < + >) SO2CF3. The lithium ion transference number of the polymer electrolyte can reach 0.89, and the polymer electrolyte has single ion conductor characteristics and excellent ionic conductivity in a solid state, and the ionic conductivity can reach 1.12 * 10 <-4 > S / cm.

The invention relates to the technical field of sodium ion batteries, in particular to an electrolyte and a sodium ion battery. The electrolyte comprises a sodium salt, an organic solvent and an inorganic aluminum salt additive, the inorganic aluminum salt additive comprises any one or more of aluminum trifluoromethanesulfonate, aluminum bis (fluorosulfonyl) imide, aluminum bis (fluorosulfonyl) imide, aluminum fluoride and aluminum chloride; the organic solvent comprises a carbonic ester solvent. The inorganic aluminum salt additive is introduced into the electrolyte provided by the invention, so that a uniform solid electrolyte interface (SEI) film containing Al2O3 / Al can be generated on a negative electrode, sodium ion transfer impedance is effectively reduced, and rate capability and cycle performance of the sodium ion battery are remarkably improved.

The application discloses a diaphragm-free electrolytic cell, which comprises a cell body (1) with an electrode chamber (110), a pair of electrode sheets (3) arranged at intervals in the electrode chamber (110), and a cathode sheet (3a) and an anode sheet (3b). The electrode chamber (110) is provided with an insulating screen (4) for separating the cathode sheet (3a) and the anode sheet (3b). The insulating screen (4) is provided with a plurality of screen holes (411) for fluid. Compared with the prior art, the diaphragm-free electrolytic cell can avoid short circuit caused by the contact between the cathode sheet and the anode sheet, accelerate exhaust, inhibit scale deposition, and accelerate ion transfer.

A rechargeable battery that is configured to bring two electrodes together when charging or discharging by moving one electrode towards the other and having the two electrodes be apart when not charging or discharging, thus lowering the intercalation of the battery as set up in the customary manner and likely having more charge / discharge cycles and faster charge time as likely the ion transfer throughput can be made larger and there may even be multiple and / or redundant ion transfer paths.

An ion analysis apparatus, comprising: an ionization source configured to generate a beam of ions; a trapping device configured to receive the beam of ions and to axially transfer ions downstream; a first quadrupole mass filter configured to receive the ions transferred from the trapping device and to transfer at least a first subset of the received ions; a segmented linear quadrupole ion trap configured to receive the at least first subset of ions transferred from the first quadrupole mass filter, to perform a first processing step on the received at least first subset of ions and to transfer the processed ions; a second quadrupole mass filter configured to receive the processed ions transferred from the segmented linear quadrupole ion trap and to transfer at least a second subset of the processed ions; a collision cell configured to receive the at least second subset of ions transferred from the second quadrupole mass filter, to perform a second processing step on the received at least second subset of ions and to transfer the processed ions; a mass analyzer configured to receive the processed ions from the collision cell and to mass analyze the received processed ions.

The invention provides an electrolyte, a battery and a formation method of the battery, and relates to the technical field of batteries. The electrolyte adopts ethylene carbonate (EC) and dibutyl carbonate (DBC) as a solvent or a part of the solvent, and the volume fraction of the dibutyl carbonate (DBC) in the organic solvent is not less than 20%. The high polarity of the EC is beneficial to maintaining dissociation of the lithium salt, so that the lithium salt can be decomposed into lithium ions and anions, and the DBC has the characteristics of low viscosity and low polarity, can promote migration of the lithium ions and the anions at low temperature, promotes more anions to participate in a solvation structure, is beneficial to forming an anion-dominated solvation structure, and improves the stability of the lithium ion battery. Further, a characteristic SEI film with high ionic conductivity and mechanical strength is formed, the ion transmission efficiency of the battery is improved, and the cycle performance and the rate capability of the battery are further improved.

This invention discloses an electrolyte, battery, battery pack, and battery system for a lithium (sodium) ion battery, comprising an ionic electrolyte containing lithium borate ester (sodium salt) or lithium imine ester (sodium salt); an isoelectric point solvent of triethylamine ester, triethanolamine ester, borate ester, or phosphate ester; electrolyte 20%–50%, solvent 50%–80%. The ionic electrolyte developed in this invention is an organic compound with no ignition point and high safety, and can be used under operating conditions with voltages greater than 5 volts. The voltage of a typical lithium-ion battery is 3.4 volts. Furthermore, the electrolyte used in this invention is used in very small quantities, thus reducing overall cost and resulting in higher economic benefits. The zwitterionic polar solvent of this invention separates molecules into ions based on the charge carried by the material molecules. Due to its isoelectric point, it provides fast charging and discharging capabilities, increasing the ion transfer rate by 2-3 times or more than that of typical carbonate solvents.

The invention discloses an aluminum-cerium oxide solid solution, a proton ceramic fuel cell and a preparation method of the proton ceramic fuel cell, and relates to an oxide solid solution and ceramic fuel cell technology. The preparation method of the aluminum cerium oxide solid solution comprises the following steps: dissolving an aluminum salt and a cerium salt in water to prepare a uniformly mixed solution; dropwise adding a complexing agent solution into the mixed solution until the mixed solution becomes uniform colloid; and continuously heating the colloid, stirring, drying, and roasting to obtain the aluminum cerium oxide solid solution. The aluminum-cerium oxide solid solution crystal in the preparation method is high in purity and free of impurity phases, the oxygen vacancy concentration of the aluminum-cerium oxide solid solution crystal is higher than that of traditional oxide electrolyte materials doped with cerium oxide, zirconium oxide and the like, and the aluminum-cerium oxide solid solution crystal is suitable for being used as a proton ceramic fuel cell electrolyte. The ion and proton conduction in the proton ceramic fuel cell can be enhanced, and the ion transmission activation energy is reduced, so that the medium and low temperature electrochemical performance of the cell is obviously improved.

The invention provides a secondary battery and a preparation method thereof, an energy storage system and electric equipment, and relates to the technical field of energy storage. The diaphragm comprises a polyvinyl base film, a first coating and a second coating, the first coatings are arranged on the surfaces of the two sides of the polyethylene base film, the materials of the first coatings comprise first carbon nanotubes, paraffin layers and polydopamine-polyethyleneimine layers, and polydopamine in the polydopamine-polyethyleneimine layers is connected to branched chains of polyethyleneimine through carbon-nitrogen bonds; the second coating is arranged on the surface of one side, far away from the polyvinyl base film, of the first coating, and the material of the second coating comprises a second carbon nanotube and a polyurethane layer coated on the surface of the second carbon nanotube. The first coating and the second coating are constructed on the surface of the polyethylene-based membrane, so that the thermal stability of the diaphragm and the wettability of an electrolyte are improved, and the ion transmission impedance is reduced. When the diaphragm is applied to the secondary battery, the rate capability, the cycling stability, the thermal stability and the safety of the secondary battery can be improved.

The invention relates to a preparation method and application of a PVDF-based composite electrolyte membrane, and belongs to the technical field of lithium battery electrolyte. The preparation method of the PVDF-based composite electrolyte membrane comprises the following steps: mixing dehydrated zeolite and lithium chloride, and replacing a sodium element in the dehydrated zeolite with a lithium element to prepare lithium zeolite; and preparing the lithium zeolite, polyvinylidene fluoride and lithium salt into an electrolyte membrane. The PVDF-based composite electrolyte membrane prepared by adopting the method has good ionic conductivity, relatively low activation energy and relatively high exchange current density and critical current density, can promote uniform deposition of lithium when being used for a lithium battery, has relatively high lithium ion transfer number and relatively wide electrochemical window, and can be applied to the lithium battery. And the lithium ion battery has relatively good cycle performance under different current densities, and shows excellent electrochemical performance.

The present invention discloses an electrolytic cell, which comprises a cell body (1) having an electrode chamber (110). A pair of electrode plates (3) arranged at intervals are provided in the electrode chamber (110). It is characterized in that: an insulating partition net (4) is provided between the two electrode plates (3) in the electrode chamber (110), and the electrolytic cell further comprises a driving mechanism (5) for driving the insulating partition net (4) to move or deform. Compared with the prior art, the electrolytic cell of the present invention can improve the turbulence effect, thereby accelerating exhaust gas, inhibiting scale deposition, and accelerating ion transfer.

The present invention belongs to the technical field of batteries, and particularly relates to an electrolyte and a battery including the electrolyte. A first additive is added to the electrolyte provided by the present invention. The first additive has a lower highest occupied molecular orbital (HOMO), which makes it have extremely strong oxidation resistance and high positive electrode stability. At the same time, the first additive has a lower lowest unoccupied molecular orbital (LUMO), which enables it to preferentially undergo a reduction reaction on the surface of the negative electrode. Further, the sulfonyl group (-S(=O)2-) and -C=N- in its structure can both participate in film formation, significantly improving the film formation stability. Moreover, the SEI film rich in -N- and -S- structures can not only improve the lithium ion transfer rate and stabilize the interfacial impedance, but also the introduction of N and S heteroatoms has better high-temperature stability compared with the interfacial film structure of carbonates. Therefore, while improving the high-temperature cycle and storage performance, the low-temperature discharge performance is also taken into account.

A combined ion discharge tube and an ion guide system is disclosed. The ion discharge tube comprises of a cathode tube and an anode surface. The discharge tube acts as the cathode, whereas the anode can be any number of different configurations. In one embodiment the discharge tube is set inside a quadrupole ion guide, with the walls of the ion guide being the anode. In other embodiments, the discharge tube is placed inside the rods of the quadrupole and the inner walls of the rods or a separate plate acting as the anode. In all configurations, the ions are formed by the discharge tube and are introduced into the RF confinement of an ion guide to increase ion transfer efficiency.

The present disclosure discloses a high temperature cell system. The cell system may comprise at least two distinct cathode chambers. The cell system may further comprise a separator having a hollow structure enclosed between a first wall and a second wall, wherein the separator is configured to enable ion transfer between the first wall and the second wall. Further the hollow structure of the separator may define at least one anode chamber. The cell system may comprise a base configured to provide a common sealing to the at least two cathode chambers and the separator at one first end and second end respectively.

The invention provides a lithium ion battery electrolyte and an application thereof. The electrolyte at least comprises the following components: a lithium salt; the solvent comprises a first solvent, and the first solvent comprises at least one of fluorocarboxylic acid esters; and an additive, the additive comprising a first additive, the first additive comprising 2-(thiophenyl) ethyl acrylate. The lithium ion battery electrolyte provided by the invention can promote rapid transmission of lithium ions, reduce side reactions and improve the high-temperature cyclic gas production performance of the battery in a high-voltage rapid charging scene.

The invention relates to a membrane (10) including: - a porous substrate (30) including two opposite main surfaces (32, 34), - a selective ion transfer layer (20) including sheets (22) of a nanomaterial extending over one of the two main surfaces (32, 34) of the porous substrate, the nanomaterial being of the formula: XMNO14, M being of the formula As3(1-y-z)Sb3yBi3z, and N being of the formula P2kAs2(1-k), y, z and k being numbers ranging from 0 to 1 with y+z less than or equal to 1, X being of the formula H3(1-x)A3x, A being an alkali, an ammonium cation or a cation derived from a water-soluble hydroxide salt or a mixture thereof, x being a number ranging from 0 to 1.

The application discloses an insulating partition net for an electrolytic cell, characterized in that the insulating partition net (4) is used for partitioning between two electrode sheets (3) of the electrolytic cell, the insulating partition net (4) is flat, and a flow channel (40) in a zigzag arrangement is formed on the surface of the insulating partition net (4). The application further discloses an electrolytic cell provided with the insulating partition net. Compared with the prior art, the application can improve the turbulence effect, thereby accelerating exhaust, inhibiting scale deposition and accelerating ion transfer.

The invention relates to a hydrophilic treatment method of a polyethylene porous diaphragm and application of the polyethylene porous diaphragm in an aqueous organic flow battery, the polyethylene porous diaphragm is used for protecting an ion exchange membrane and an electrolyte in the aqueous organic flow battery after being subjected to hydrophilic treatment, and the polyethylene porous diaphragm is arranged on the negative electrode side of an anion exchange membrane and is attached to the ion exchange membrane; the thickness of the porous diaphragm is 7-20 [mu] m, and the aperture of the porous diaphragm is 30-50 nm; the wettability of the selected polyethylene porous diaphragm in an aqueous organic electrolyte after hydrophilic treatment is obviously enhanced, the ion transfer resistance can be effectively reduced, and most importantly, the pore diameter of the porous diaphragm can be reduced by the polyethylene porous diaphragm treatment process provided by the invention, so that the permeation of the electrolyte is greatly inhibited, and the service life of the porous diaphragm is prolonged. And the cycling stability of the battery is obviously improved.

The invention belongs to the technical field of secondary batteries, and particularly relates to a secondary battery which comprises a positive plate, a negative plate, a diaphragm and an electrolyte, the diaphragm is arranged between the positive plate and the negative plate, and the magnetization degree K of the negative plate, the viscosity eta of the electrolyte and the conductivity sigma of the electrolyte meet the relation that (38-20K) / (25 eta + 1.8) * 100 is larger than or equal to 2.3 and smaller than or equal to 7.2; 0.14 < = (0.5 * sigma + 1) / (35K + 3) < = 0.8; wherein K = OI1 / OI0, OI0 is the orientation degree of the negative plate before magnetization, and OI1 is the orientation degree of the negative plate after magnetization. Firstly, the negative plate is magnetized to change the graphite orientation, so that the lithium ion transmission path is reduced, the transmission and diffusion rate of lithium ions in the battery is improved, and the expansion of the battery in the thickness direction is reduced; and the physicochemical parameters of the electrolyte are adjusted to match the magnetized negative plate, so that the rate capability and the cycle expansion performance of the whole battery are improved to the greatest extent.

The present application relates to the technical field of all-solid-state lithium metal battery, and particularly relates to a solid-state polymer electrolyte and a preparation method and application thereof. In the present application, trifluoroethanol is used to fluorinate eggshell membrane powder in natural eggshell, which is used as a polyethylene oxide-based solid-state polymer electrolyte additive. This can adjust the network structure of the polymer, enhance the electrochemical and mechanical performance of the solid-state electrolyte, inhibit lithium dendrite growth, and enhance the cycle performance of the lithium metal battery. The lithium ion transfer number of the improved solid-state electrolyte battery is determined by chronamperometry, and the lithium ion transfer number is higher, and it is easier to generate fluorinated lithium and lithium oxide, and better inhibit the growth of lithium dendrites. The addition of trifluoroethanol to fluorinate the eggshell membrane solid-state electrolyte in the natural eggshell makes the lithium symmetrical battery and the lithium iron phosphate full battery exhibit excellent performance in various cases.