23 results about "Fluid electrolytes" patented technology

This invention belongs to the field of aluminum-ion battery technology, specifically relating to an aluminum-ion battery based on a biomimetic CNT / Al composite metal anode. It comprises a positive electrode, a non-aqueous aluminum salt-based ionic liquid electrolyte, a separator, and a biomimetic CNT / Al composite metal anode. The biomimetic CNT / Al composite metal anode consists of an aluminum substrate and a three-dimensional continuous electron permeation network formed within the aluminum substrate. The aluminum substrate is a micro / nano-scale aluminum sheet, and the three-dimensional continuous electron permeation network is formed by carboxylated multi-walled carbon nanotubes. The three-dimensional continuous electron permeation network extends to the surface of the biomimetic CNT / Al composite metal anode. Compared with existing technologies, this invention solves the problem that existing technologies cannot simultaneously address the issues of ion mass transfer kinetics and interfacial mechanical stability during long-term cycling. This solution achieves long-term stable cycling of the aluminum-ion battery under harsh conditions by constructing a CNT / Al anode with a carbon nanotube (CNT)-like neural network structure.

Provided is a method of producing a lithium ion secondary battery, the method including: a charge and discharge treatment step of subjecting a first lithium ion secondary battery including a positive electrode having a positive electrode active material layer containing a sulfur-modified compound, a first liquid electrolyte, and a negative electrode to charge and discharge treatment; and a replacement step of replacing the first liquid electrolyte with a second liquid electrolyte to provide a second lithium ion secondary battery after the charge and discharge treatment step, wherein the first liquid electrolyte contains a solvent selected from the group consisting of: a saturated cyclic carbonate compound; and a saturated chain carbonate compound, and wherein the second liquid electrolyte contains a solvent selected from the group consisting of: a saturated cyclic ether compound; and a saturated chain ether compound.

In the claimed method, a metal foil forming a first electrical current conductor is provided with openings, which are distributed uniformly on a surface of the metal foil and are arranged with spacings. The metal foil is subsequently brought into contact with a solid electrolyte, and the metal foil perforated in this way is then provided with a polymer coating, with which the free cross-sectional areas of the openings are filled. A thin, dense solid electrolyte layer is subsequently formed, and a layer forming the cathode is then formed on the opposite surface of the solid electrolyte in relation to the first current conductor, or a cathode is integrally bonded to said surface. The cathode is placed in electrically conductive contact with a further metal foil, which forms a second electrical conductor, on the oppositely arranged surface and is ionically conductively infiltrated with a liquid electrolyte, wherein an alkali metal anode is formed on the solid electrolyte in the region of the openings in the metal foil during charging of said electrochemical cells.

A battery of the present invention comprises: an anode including lithium metal; a cathode including a cathode active material; and a separator positioned between the cathode and the anode. The separator includes: a base layer; a first electrolyte layer, which is positioned between the base layer and the cathode and includes a first electrolyte composition; and inorganic particles, wherein the first electrolyte composition includes a first binder, a first liquid electrolyte and a first crosslinking agent, the first crosslinking agent including a 1-1 crosslinking agent and a 1-2 crosslinking agent, and the number of crosslinkable functional groups of the 1-1 crosslinking agent can be greater than the number of crosslinkable functional groups of the 1-2 crosslinking agent.

Device (1) for heating an electrochemical energy storage device (2) with a fluid electrolyte, in particular a lithium-ion cell or a redox flow cell, wherein the device (1) has a fluid line (4) which fluidly connects a fluid outlet (2a) of the electrochemical energy storage device (2), through which the fluid electrolyte can be discharged from the electrochemical energy storage device (2), with a fluid inlet (2b) of the electrochemical energy storage device (2), through which the fluid electrolyte can be supplied to the electrochemical energy storage device (2), in the form of a circuit, wherein the fluid line (4) is made of an inductively heatable material and is configured to transfer inductively generated heat to the fluid electrolyte and to generate convection of the fluid electrolyte.

The invention relates to an all-solid-state photoelectrochemical water decomposition hydrogen production device which comprises a cover plate, an anode frame, a cathode frame and a bottom plate, a proton exchange membrane is arranged on the junction surface of the anode frame and the cathode frame, and the gel electrolyte in the proton exchange membrane is divided into two layers; a cathode layer, a cathode current collector and a bottom plate are sequentially arranged on the bottom surface of the cathode frame; an anode current collector, a photo-anode layer and a cover plate are sequentially arranged on the top surface of the anode frame; a semiconductor film is loaded at the center of the photo-anode layer; a water inlet and a water outlet are respectively formed in the side surfaces of the anode frame and the cathode frame; an oxygen outlet is formed in the cover plate; and a hydrogen outlet is formed in the bottom plate, penetrates through the cathode current collector and the cathode layer and is communicated with the inner cavity of the cathode frame. The problem that liquid electrolyte in a traditional system can leak can be solved, the distance between the photo-anode layer and the cathode layer can be shortened to several millimeters without causing short circuit, and the current density and the conversion efficiency of photoelectrochemical water decomposition are effectively improved.

An electrolytic capacitor (1) comprising a main body shell (2), a capacitor element (10), and a sealing body (5), wherein the main body shell (2) has an opening, the capacitor element (10) is housed within the main body shell (2), the sealing body (5) seals the opening of the main body shell (2), the capacitor element (10) is wound with an anode foil (11) having an oxide coating (16) on its surface and a cathode foil (12) opposite to the anode foil (11) separated by a spacer (13), and an electrolyte layer (19) is provided between the anode foil (11) and the cathode foil (12), the electrolyte layer comprising: a solid electrolyte (17) comprising a conductive polymer; and a liquid electrolyte (18) covering at least a portion of the solid electrolyte (17), the liquid electrolyte (18) comprising at least an unsaturated fatty acid salt, wherein the unsaturated fatty acid salt monomer or a mixture of unsaturated fatty acids added to the unsaturated fatty acid salt comprises more than 50% by weight of the liquid electrolyte (17).

This invention discloses an ionic liquid electrolyte, its preparation method, battery, and electrical device. The ionic liquid comprises a cation having the structure shown in formula (1): In formula (1), at least one of R3 and R4 is selected from lithium. The ionic liquid electrolyte according to this invention has a single component, significantly reduces the complexity of the electrolyte system, and exhibits high lithium-ion conductivity.

The present disclosure relates to a battery cell for a vehicle, a battery for a vehicle, and a method for forming a battery cell. The battery cell comprises a cathode comprising lithium iron phosphate and lithium aluminum titanium phosphate, an anode comprising a silicon film, and a separator positioned between the cathode and the anode. The battery cell also comprises a first solid electrolyte layer arranged on the separator and a liquid electrolyte in contact with the cathode, the anode, the first solid electrolyte layer, and the separator. The separator comprises a cathode side facing the cathode and an anode side facing the anode. The first solid electrolyte layer comprises a layer of lithium aluminum titanium phosphate, and the liquid electrolyte comprises a primary lithium ion salt, a solvent, and a diluent.

The application discloses a method for electrolysis of ammonia to hydrogen by using an ionic liquid electrolyte, and belongs to the field of hydrogen production. The method is characterized in that the ionic liquid is directly used as an electrolyte, and the electrolysis of ammonia is performed in a constant potential mode. The ionic liquid as the electrolyte can effectively reduce the internal resistance of the solution of the ammonia decomposition reaction, reduce the reaction overpotential, and improve the current density. Compared with the reported ammonium salt electrolyte, the ionic liquid can not only be better miscible with anhydrous solvents, but also can effectively avoid the problem that the high concentration of ammonium ions leads to the inhibition of the self-coupling ionization of ammonia molecules. The electrolysis of ammonia to hydrogen in an anhydrous environment can avoid the occurrence of side reactions such as oxygen evolution reaction, and improve the Faraday efficiency of the ammonia decomposition method. Compared with the traditional industrial thermal decomposition process, the electrolysis of ammonia to hydrogen has a more moderate reaction condition, and can effectively reduce the energy consumption and the maintenance cost of the equipment.

Described herein are examples of systems for making solid-state batteries. The system may include a first reservoir containing a first constituent material comprising graphene, sulfur, and phosphorus as well as a second reservoir containing a second constituent material comprising a separator and a binder, and a mixer configured to combine the first and second constituent materials or to mix them separately. The system may also include a first and a second pump that can deliver the respective constituent materials to the mixer, a spray nozzle that can deposit the mixed material onto a substrate, and a high-voltage source that can apply an electric potential difference between the substrate and the spray nozzle to facilitate deposition. Solid-state batteries can thus be formed using the system without liquid electrolytes by incorporating solid electrolyte particles into electrode material or by other solid-electrolyte approaches, thereby enabling safer, smaller, and more manufacturable batteries.

A robotic power and actuation system is disclosed in which a single circulating working fluid performs hydraulic actuation, electrochemical energy storage and delivery, and thermal management functions. The system replaces conventional inert hydraulic fluids and centralized battery packs with an electrochemically active liquid electrolyte having sufficient energy density and mechanical properties to support pressurized fluid actuation. The electrolyte is circulated through a distributed conduit network within the robotic structure to drive hybrid soft and rigid actuators, supply electrical energy to distributed electrical storage or conversion elements, and absorb and transport heat away from high-power electronic components. By integrating power delivery, mechanical actuation, and thermal regulation into a unified fluid loop, the system reduces mass, improves energy utilization efficiency, enhances fault tolerance through distributed energy storage, and enables rapid replenishment of energy via fluid exchange without disassembly or system shutdown.

提供了一种可再充电锂离子电池。电池包括具有集流体的正极和涂覆在集流体上的电极活性层。电极活性层包括正极活性材料和与正极活性材料和液体电解质直接接触的锂化Nafion(Li‑Nafion)。Li‑Nafion直接沉积在正极材料的外表面积上，使得Li‑Nafion成为液体电解质和正极材料之间的界面。Li‑Nafion可以沉积为覆盖单个正极材料颗粒的外表面的一部分的涂层或多个颗粒。具有Li‑Nafion覆盖的正极材料颗粒的正极提供了改进的放电率性能、循环稳定性以及快速充电能力，这是由高电压稳定性和锂离子传导能力产生的。

The present invention relates to a novel additive, and to a non-aqueous liquid electrolyte and a gel-type or solid polymer electrolyte containing same. More specifically, the present invention relates to a novel additive and a non-aqueous liquid electrolyte and a gel-type or solid polymer electrolyte containing same, the novel additive comprising a siloxane compound that includes an amine group substituted with an electron-withdrawing functional group, or an isocyanate group, a boronate pinacol ester group, a butylate group, a hexanoate group, a heptanoate group, a cyclohexanopropionate group, and a diethyl phosphate group, and improving electrochemical stability, thermal stability, flame retardancy, and cycle life of an alkali metal battery to which the additive is added.

The present disclosure provides "lithium-ion battery additives". A lithium-ion battery cell is presented. The lithium-ion battery cell includes a current collector and an active material layered on the current collector. The active material layer includes an electrode active material, a conductive agent, and a binder, and has a bottom adjacent to the current collector that includes a solid electrolyte. The battery cell further includes a liquid electrolyte that permeates the active material layer, thereby increasing ion transport during cycling through interaction with the solid electrolyte.

A method for manufacturing an electrochemical cell of a polymer matrix battery includes covering an anode current collector film with an anode mixture which contains an anode active material dispersed in a first cross-linkable liquid electrolyte containing a first cross-linkable composition, forming an anode electrode, covering a cathode current collector film with a cathode mixture which contains a cathode active material dispersed in a second cross-linkable liquid electrolyte containing a second cross-linkable composition, forming a cathode electrode, stacking the anode electrode and the cathode electrode with the interposition of a separator film, electrically insulating, porous and impregnated with a third cross-linkable liquid or semi-liquid electrolyte, forming a stack, and exposing the stack to at least one electron beam so that the first cross-linkable liquid electrolyte and the second cross-linkable liquid electrolyte solidify in bulk, thereby forming the electrochemical cell.

The present invention relates to a method and apparatus for assembling battery cells, the method comprising forming electrode layers in a paste state on a conductive carrier, the electrode layers comprising a mixture of an ionically conductive liquid electrolyte, a monomer or polymer mixture and a polymerization or cross-linking initiator for the monomer or polymer mixture, exposing the electrode layers to radiation to initiate their solidification, and then contacting them with a separator layer in a liquid state before their respective solidification is complete, thereby obtaining solid electrolyte battery cells having properties approaching those of liquid electrolyte battery cells.

An energy storage device (10) includes an energy storage unit (20) comprising a positive electrode (21), a negative electrode (22), a separator (23), and a sealing portion (24) forming a sealed space for containing a liquid electrolyte between the positive electrode (21) and the negative electrode (22). The positive electrode (21) has a positive electrode active material layer (21b) formed on a first surface (21a1) of a positive electrode current collector (21a). The first surface (21a1) of the positive electrode current collector (21a) is made of aluminum. The sealing portion (24) is made of an acid-modified polyolefin resin and is bonded to the first surface (21a1) of the positive electrode current collector (21a). The positive electrode (21) has a carbon coating (M) disposed on the bonding portion of the first surface (21a1) of the positive electrode current collector (21a) with the sealing portion (24). The carbon coating (M) comprises carbon particles and a coating binder. The carbon coating (M) has a unit area weight of 0.2 g / m². 2 above.

The application belongs to the technical field of organic wastewater treatment, and particularly relates to a preparation method and application of an electro-Fenton composite electrode containing silicone oil. A transition metal oxide is used to etch graphite felt at high temperature to prepare a high-efficiency cathode material, and silicone oil is added in the pore channels of the graphite felt to promote the improvement of the water flooding resistance of the electrode. An ion exchange membrane is used as a solid electrolyte to replace a traditional liquid electrolyte to construct a new electro-Fenton technology to eliminate secondary pollution caused by the liquid electrolyte. The electro-Fenton technology based on the composite electrode has the advantages of good treatment effect, no secondary pollution, wide pH application range, simple process, recyclability, environmental friendliness, and wide application prospect in the field of organic wastewater treatment.

The application discloses a single-point solid electrolyte electrochemical machining method, which comprises the following steps: preparing a gel solid for single-point solid electrolyte electrochemical machining; manufacturing a single-point solid electrolyte electrochemical machining tool; and machining by using the single-point solid electrolyte electrochemical machining tool. In the machining process, the application uses a solid electrolyte, and a series of problems caused by liquid electrolyte flow and sputtering in traditional electrochemical machining are avoided in the machining environment. The application adopts the solid electrolyte to perform electrochemical machining, so that the electrolyte can be constrained, and local and selective material removal can be realized. The machining tool manufactured by using the gel solid with low roughness is used to perform electrochemical machining, so that good surface quality can be obtained. The single-point solid electrolyte electrochemical machining tool in the application can be conveniently installed on various motion platforms and machine tools, and through trajectory programming, machining of complex shapes can be realized, so that the application range is wide, and the machining efficiency is high.

A solid-state secondary battery is presented, comprising a positive electrode layer; a negative electrode layer; a solid electrolyte layer disposed between the positive electrode layer and the negative electrode layer; and a first organic electrolyte disposed between the positive electrode layer and the solid electrolyte layer, a second organic electrolyte disposed between the negative electrode layer and the solid electrolyte layer, a third organic electrolyte disposed within the solid electrolyte layer, or a combination thereof, wherein the first organic electrolyte, the second organic electrolyte, and the third organic electrolyte independently comprise a polymer electrolyte, a liquid electrolyte, or a combination thereof, the viscosity of the liquid electrolyte being 10 cps or more at 25°C and 1 atm, the positive electrode layer comprising a positive electrode current collector and a positive electrode active material layer disposed on one or both sides of the positive electrode current collector, the positive electrode active material layer comprising a Li2S-containing composite, and the negative electrode layer comprising a negative electrode current collector and a first negative electrode active material layer disposed on one side of the negative electrode current collector.

The secondary battery according to the present invention includes: a positive electrode; a negative electrode disposed opposite to the positive electrode; and a gel polymer electrolyte comprising a crosslinked monomer, a polymer of the crosslinked monomer, and a liquid electrolyte. The conversion rate of the crosslinked monomer is 85% or higher.

This invention belongs to the field of lithium-ion battery technology, and particularly relates to a gel-state ionic liquid electrolyte for lithium-ion batteries and its preparation method. It includes an ionic liquid matrix, a lithium salt, a non-solventizing diluent, a polymer matrix, and an initiator. The ionic liquid matrix comprises cations and anions of the ionic liquid matrix, and the anions include a first anion and a second anion. The polymer matrix is ​​a network structure formed by in-situ polymerization of a polymer precursor. The bi-anionic gel-state ionic liquid electrolyte prepared in this application solves the problems of conventional solvents participating in the solvation sheath of lithium ions, resulting in an unstable SEI film, increased interfacial impedance, and poor rate performance.