678 results about "Electrolyte composition" patented technology

The present disclosure provides a solid electrolyte composition that can suppress deterioration in ion conductivity of an ionic solid electrolyte material. The solid electrolyte composition according to the present disclosure contains a sulfur element-free ionic solid electrolyte material and an organic solvent, where the organic solvent includes at least one selected from the group consisting of a hydrocarbon and a compound having a functional group; and the functional group is at least one selected from the group consisting of an ether group, a halogen group, and a Si—O—C group.

The present disclosure provides a solid electrolyte composition that can suppress deterioration in ion conductivity of an ionic solid electrolyte material. The solid electrolyte composition according to the present disclosure contains a sulfur element-free ionic solid electrolyte material and an organic solvent, where the organic solvent includes at least one selected from the group consisting of a hydrocarbon and a compound having a functional group; and the functional group is at least one selected from the group consisting of an ether group, a halogen group, and a Si—O—C group.

Systems, devices, and methods described herein relate to electrolyte formulations and the incorporation thereof into batteries. In some aspects, an electrolyte composition can comprise between about 10 wt % and about 42 wt % of an electrolyte solvent, between about 13 wt % and about 59 wt % of a fluoroether. In some embodiments, the electrolyte solvent can make up between about 26 wt % and about 39 wt % of the composition. In some embodiments, the fluoroether can make up between about 18 wt % and about 36 wt % of the composition. In some embodiments, the composition can include between about 0.5 wt % and about 1.5 wt % of a first additive. In some embodiments, the composition can include between about 0.5 wt % and about 5 wt % of a second additive.

The invention belongs to the technical field of metal material surface oxidation, and particularly relates to a gradient micro-arc oxidation preparation system and method. The system comprises a pretreatment device, an electrolyte batching device and a micro-arc oxidation device, and the pretreatment device is used for removing oil stains and oxide layers on the surfaces of workpieces and mechanically polishing the surfaces of the workpieces; the electrolyte batching device is used for mixing and preparing electrolyte used for workpiece micro-arc oxidation; the micro-arc oxidation device comprises a reactor containing electrolyte, and a workpiece is subjected to micro-arc oxidation in the reactor; the pretreatment device, the electrolyte batching device and the micro-arc oxidation device are sequentially connected according to an industrial production sequence. In addition, the invention further discloses a gradient micro-arc oxidation preparation method. The uniform and smooth color gradient effect on the surface of the metal material is achieved by accurately regulating and controlling key parameters such as electrolyte components, voltage, current density, oxidation time and temperature in the oxidation process.

The present invention relates to electrodes formed with a polymer having stabilizing film(s), methods of providing the stabilizing film(s) and electrolyte compositions which can form the stabilizing film(s).

The invention provides an electrolyte composition, a secondary liquid injection method and a battery. The electrolyte composition suitable for secondary liquid injection comprises a first electrolyte for primary liquid injection and a second electrolyte for secondary liquid injection, the first electrolyte comprises 0.01 to 5 weight percent of vinylene carbonate, 0.05 to 3 weight percent of a first additive, 0.01 to 5 weight percent of a second additive, 5 to 15 weight percent of lithium salt, 0.01 to 5 weight percent of a film-forming additive and the balance of a non-aqueous organic solvent; the second electrolyte comprises 5 to 30 weight percent of vinylene carbonate, 0.01 to 10 weight percent of first additive, 5 to 15 weight percent of lithium salt and the balance of non-aqueous organic solvent; wherein the first additive comprises a compound as shown in a formula 1; the second additive comprises a compound as shown in a formula 2. The electrolyte composition provided by the invention can enable the battery to present low gas yield, low initial DCR and normal-temperature and high-temperature cycle performance.

This invention discloses an iron-chromium redox flow battery system and a capacity recovery method including a rebalancing device, belonging to the field of flow battery technology. It includes an iron-chromium redox flow battery module, a rebalancing device, and an electrolyte readjustment module. The rebalancing device is used to electrolyze and reduce the ferric ions in the positive electrode electrolyte of the iron-chromium redox flow battery module to ferrous ions. The electrolyte readjustment module is used to correct the concentration of the reduced positive electrode electrolyte in the rebalancing device. The rebalancing device of this invention uses water electrolysis to reduce the Fe in the positive electrode electrolyte of the iron-chromium redox flow battery. 3+ Reduced to Fe 2+ This avoids the emission of electrolysis byproducts and cross-contamination of impurity ions across the membrane, making the entire rebalancing process clean and simple to operate. The electrolyte readjustment module optimizes the concentration and volume of the electrolyte after activity recovery, making it closer to the initial electrolyte composition and avoiding the problem of deteriorated flow battery performance caused by differences in electrolyte volume and concentration after capacity recovery.

An organofunctional silicone or silane compound suitable for use as an electrolyte is provided. The organofunctional silicone or silane compound may be used to provide an electrolyte composition suitable for use in an electrochemical device. The organofunctional silicone or silane compound can be used as an electrolyte additive, co-solvent, solvent used in an electrolyte formulation which may be suitable for electrochemical devices.

The invention relates to a liquid-crystal-based polymer solid electrolyte composition, a liquid-crystal-based polymer solid electrolyte, a preparation method of the liquid-crystal-based polymer solid electrolyte and a lithium metal battery. The liquid-crystal-based polymer solid electrolyte composition comprises a polymerizable nematic liquid crystal monomer, an acrylate monomer, an ionic liquid, a lithium salt, a cross-linking agent and an initiator, the polymerizable nematic liquid crystal monomer comprises a bifunctional liquid crystal monomer. The liquid-crystal-based polymer solid electrolyte composition provided by the invention contains the polymerizable nematic liquid crystal monomer and the acrylate monomer, can form a continuously and directionally arranged polymer network, and provides a path for rapid transportation of lithium ions, so that a lithium metal battery can operate stably.

The invention relates to a non-aqueous electrolyte composition having a solvent system which comprises a first component which comprises a first organo carbonate-based solvent and a second organo carbonate-based solvent; and a second component which comprises one or more performance additives that includes tris(trimethylsilyl) borate (TMSB). Devices, methods and uses including electrolytes compositions are also disclosed.

Solid electrolyte compositions and solid-state batteries are disclosed, which comprise a solid electrolyte layer including a sulfide-containing solid-state electrolyte material and a compound of Chemical Formula 1. The sulfide-containing solid-state electrolyte material includes but is not limited to Li6PS5Cl (“LPSC”), an LPS-based glass or glass ceramic of formula xLi2S·yP2S5, wherein x+y=1, or an argyrodite-based sulfide-based solid electrolyte or formula Li6PS5X, wherein X═Cl, Br, or I) or Li6-yPS5-yCl1+y, where y is <1. In some aspects, the compound of Chemical Formula 1 is sodium 3-mercapto-1-propanesulfonate (3M1P).

This application provides an electrolyte composition, a secondary battery, a battery module, a battery pack, and an electrical device. The electrolyte composition is a non-Newtonian fluid electrolyte composition. The electrolyte composition can improve the impact resistance and safety of the battery by a thixotropic action that occurs in response to an applied external force.

Embodiments relate to an electrolyte composition including a cyclic fluorinated ether diluent configured to configured to control reactions between a metal anode of a metal ion battery and the electrolyte composition. Embodiments further relate to a solid electrolyte interphase (SEI) bilayer formed on a surface of the metal anode and to a metal ion battery including the cyclic fluorinated ether diluent and / or the SEI bilayer.

Systems, devices, and methods described herein relate to electrolyte formulations and the incorporation thereof into batteries. In some aspects, an electrolyte composition can comprise between about 10 wt % and about 42 wt % of an electrolyte solvent, between about 13 wt % and about 59 wt % of a fluoroether. In some embodiments, the electrolyte solvent can make up between about 26 wt % and about 39 wt % of the composition. In some embodiments, the fluoroether can make up between about 18 wt % and about 36 wt % of the composition. In some embodiments, the composition can include between about 0.5 wt % and about 1.5 wt % of a first additive. In some embodiments, the composition can include between about 0.5 wt % and about 5 wt % of a second additive.

An electrolyte composition, for use in particular in a lithium-air battery, includes(A) a fluorinated cation of structure R1R2R3N+-(linker1)-O-(linker2)-(FC), wherein R1, R2 and R3 are C1-C6 linear or branched alkyl groups, linkers linker1 and linker2 contain alkylene or oxyalkylene chains and FC is a fluorinated alkyl group;(B) an anion;(C) a solvent containing at least one —O—CH2—CH2—O— or —O—CH2—CHMe-O— group, an ϵ-caprolactone oligomer, or a dialkyl sulfoxide; and(D) a lithium salt.

The invention discloses an electrolyte composition, application thereof and a lithium ion battery. The electrolyte composition comprises a first electrolyte and a second electrolyte, the first electrolyte comprises a base solution, vinylene carbonate, methylene methanedisulfonate, ammonium perfluorooctane sulfonate and 1, 3, 6-hexane trinitrile, and the second electrolyte comprises a base solution, vinylene carbonate and fluoroethylene carbonate, the basic solution is a mixed solvent in which lithium salt is dissolved, and the mixed solvent comprises at least two of ethylene carbonate, propylene carbonate and diethyl carbonate. The electrolyte composition can be applied to preparation of a lithium ion battery for supplementing lithium. The invention also discloses a lithium ion battery comprising the electrolyte composition, a positive pole piece containing a lithium supplement agent, a negative pole piece containing a lithium supplement agent and a diaphragm. According to the electrolyte composition, the lithium supplement agent can play a better lithium supplement role, the 45 DEG C cycle performance of the lithium supplement battery is obviously improved, and the 45 DEG C cycle capacity is kept at 94% or above.

The present invention relates to a method for recovering retired ternary lithium battery positive electrode materials, wherein the ternary positive electrode materials are sequentially stripped, crushed, and acid-leached, and then subjected to two electrolytic cell treatments, wherein the first treatment is carried out at a pH of 3 to 6, and the acid leaching solution is used as an electrolyte at a temperature of 10 to 100 A / m 2 Electrolysis is carried out for 3-8 hours at a current density of , and MnO2 at the anode of the electrolytic cell, the Ni-Co complex at the cathode of the electrolytic cell, and the lithium salt in the electrolyte are obtained respectively. The lithium salt is precipitated by sodium carbonate to separate Li, Mn, and Ni-Co. The recovery rate of each metal is high and the purity is good. After that, the electrode containing the Ni-Co complex is continued to be electrolyzed in the electrolytic cell, and the metal nickel and cobalt are separated by controlling parameters such as pH and electrolyte composition. The present invention can efficiently and accurately recover the valuable metals of the ternary positive electrode materials of retired lithium-ion batteries through simple electrolytic cell treatment, is simple to operate and has high economic value.

The present invention provides a composite solid electrolyte composition and its preparation method and application. The composite solid electrolyte composition includes a polymer matrix, a lithium salt, a modified inorganic nanofiller and an initiator; the polymer matrix includes a polymer containing a carbon-carbon double bond; the modified inorganic nanofiller includes an inorganic nanofiller, a polydopamine coating layer and a characteristic layer from the inside to the outside; the material of the characteristic layer includes a compound containing a carbon-carbon double bond and a reactive group. In the present invention, the composite solid electrolyte composition, by modifying the inorganic nanofiller with polydopamine and a compound containing a carbon-carbon double bond and a reactive group, enhances the mechanical strength of the solid polymer electrolyte, improves the dispersibility of the inorganic nanofiller in the polymer matrix, and improves the ionic conductivity and cycle stability of the lithium-ion battery; and avoids the use of harmful organic solvents, thereby realizing the green preparation of the composite solid electrolyte.

The present disclosure provides an electrolyte composition containing an organic solvent and a polymer having an ability to conduct alkali metal ions, the electrolyte composition being characterized in that the total number of donors of the organic solvent contained in the electrolyte composition is 16.5 or more (wherein n is the total number of organic solvents contained in the electrolyte composition and is 1 or more, n is an integer of 1 or more, and n is an integer of 1 or more). DNi is the donor number of the ith organic solvent, and fi is the mass fraction of the ith organic solvent.

The present invention relates to a fluorinated electrolyte composition for chalcogen batteries. The invention also relates to a battery comprising: an anode; a cathode comprising chalcogen elements separated from the anode; and an electrolyte composition in fluid communication with the anode and the cathode, the electrolyte composition comprising a fluorinated solvent comprising: greater than 30% by volume of a fluorinated carbonate for use with a cathode comprising a carbon-chalcogen composite, the carbon-chalcogen composite has at least 50 wt% chalcogen based on the solids weight of the carbon-chalcogen composite; and / or at least 20% by volume of a fluorinated carbonate, and a fluorinated compound different from the fluorinated carbonate, the% by volume based on the electrolyte composition but not the total volume of the salt.

A solid electrolyte composition of the present disclosure includes a solvent and an ion conductor including a solid electrolyte, a binder, and a nitrogen-containing organic substance and being dispersed in the solvent. The solid electrolyte includes a sulfide solid electrolyte, the binder includes a styrenic elastomer, and the nitrogen-containing organic substance includes at least one selected from the group consisting of primary amines, secondary amines, aminohydroxy compounds, and diamines. The primary amines, the secondary amines, the aminohydroxy compounds, and the diamines each have at least one selected from the group consisting of chain alkyl groups having 8 or more carbon atoms and chain alkenyl groups having 8 or more carbon atoms. The mass proportion of the nitrogen-containing organic substance to the solid electrolyte is 0.30 mass % or more.

The present invention pertains to an anode-less lithium ion battery comprising a) a cathode comprising a cathode current collector and a cathode electro-active material on the cathode current collector; b) an anode current collector; c) a liquid electrolyte composition between the a) cathode and the b) anode current collector; and d) a separator, wherein the c) liquid electrolyte composition comprises i) at least 70% by volume (vol %) of a solvent mixture with respect to the total volume of the electrolyte composition, comprising at least one fluorinated ether compound and at least one non-fluorinated ether compound, and ii) at least one lithium salt.

Novel electrolyte compositions for lithium ion energy storage devices with silicon-based electrode materials have improved stability. The electrolyte composition may be used in an energy storage device that includes a first electrode and a second electrode, where at least one of the first electrode and the second electrode is a silicon-based electrode; a separator between the first electrode and the second electrode; and the electrolyte composition.

A solid electrolyte composition including (A) a sulfide solid electrolyte including lithium, phosphorus and sulfur, and (B) one or more compounds selected from the compounds represented by the following formulas (1) to (17).R11R12R13P  (1)(NR21R22)(NR23R24)(NR25R26)P  (2)R31R32R33PS  (3)(NR41R42)(NR43R44)(NR45R46)PS  (4)R51SH  (5)R61COOR62  (6)R71NH2  (7)R81R32R33N  (8)R91(OA)nOH  (9)(R101O)(R102O)(R103O)P  (10)R111R112R113R114M1  (11)R121R122R123M2  (12)R131R132R133M3  (13)R141—C(═O)NH—R142  (14)R151R152R153C—OH  (15)R161—O—R162  (16)(SR171)(SR172)(SR173)P  (17)

Systems, devices, and methods described herein relate to electrolyte formulations and the incorporation thereof into batteries. In some aspects, an electrolyte composition can comprise between about 10 wt % and about 42 wt % of an electrolyte solvent, between about 13 wt % and about 59 wt % of a fluoroether. In some embodiments, the electrolyte solvent can make up between about 26 wt % and about 39 wt % of the composition. In some embodiments, the fluoroether can make up between about 18 wt % and about 36 wt % of the composition. In some embodiments, the composition can include between about 0.5 wt % and about 1.5 wt % of a first additive. In some embodiments, the composition can include between about 0.5 wt % and about 5 wt % of a second additive.

Myriad problems with state of the art lithium based batteries, particularly electrolyte systems thereof, including but not limited to polysulfide shuttling, formation of lithium dendrites and dead lithium during stripping and plating, thermal runaway, volumetric expansion, and strict requirements for electrolyte composition, are well documented in the art and remain major obstacles to realizing the unsurpassed potential for lithium-based batteries as ideal energy storage solutions. The inventive concepts presented herein address said challenges from a multi-pronged approach, revolutionizing the electrolyte system from different approaches to produce synergistic benefits, both within the individual approaches and particularly in combination. The inventive concepts improve electrolyte systems with respect to solvents, electron withdrawing compounds, lithium ion-transporting compounds, performance enhancing additives and chalcogenides. These developments provide benefits including: improved charge / discharge capacity, Coulombic efficiency, cycle life, sulfur optimization, oxidative stability, etc. while reducing polysulfide shuttling and lithium dendrite formation, among other benefits.

The invention relates to the technical field of lithium battery production control, and discloses a production control method for realizing efficient output of lithium battery monomers. The method comprises the following steps: obtaining production batch characteristic data of a lithium battery monomer, the production batch characteristic data comprising an electrode material ratio characteristic and an electrolyte composition characteristic, and extracting a corresponding process parameter configuration set based on the production batch characteristic data; on the basis of the process parameter configuration set, key control nodes in the lithium battery production process are identified, and the key control nodes comprise a material ratio adjusting node and a process parameter switching node; parameter deviation data in the production process are calculated according to the key control nodes, and the parameter deviation data comprise accumulated deviation in the same-batch production process and parameter jump values during cross-batch production; based on the parameter deviation data, a reusable process control parameter set is extracted, and the reusable process control parameter set comprises universal process parameters and special process parameters.

A method for purifying an aqueous sulfonylimide solution includes heating an aqueous sulfonylimide solution containing a sulfonylimide compound represented by the general formula (1). A method for producing a non-aqueous electrolyte solution includes adding an electrolyte solution solvent to the aqueous sulfonylimide solution purified by the purification method to dehydrate the aqueous sulfonylimide solution. A method for producing an electrolyte composition includes distilling off the electrolyte solution solvent from the non-aqueous electrolyte solution obtained by the production method.

Provided herein is an electrolyte composition for a lithium-ion battery, the composition comprising: (a) 18-35 wt% of lithium salt; (b) 1-25 wt% of solvent additive; and (c) 45-80 wt% of solvent. The total amount of (a), (b) and (c) is less than or equal to 100 wt% of the electrolyte composition. The lithium salt comprises lithium bis(fluorosulfonyl)imide (LiFSI), lithium 4,5-dicyano-2-(trifluoromethyl)imidazole (LiTDI) and lithium difluoro(oxalato)borate (LiDFOB). The solvent additive comprises one or more fluorinated and / or unsaturated carbonate compounds. The solvent comprises a cyclic carbonate. Also provided is an electrochemical cell comprising the electrolyte composition, an electrochemical energy storage device comprising the electrochemical cell, and uses associated with the electrolyte composition.

A solid electrolyte composition comprising: (A) a sulfide solid electrolyte containing lithium, phosphorus, and sulfur; and (B) one or more compounds selected from among compounds represented by formulae (1)-(17). R < 11 > R < 12 > R < 13 > P (1); (NR21R22) (NR23R24) (NR25R26) P (2); (3), R31R32R33PS (3); (NR41R42) (NR43R44) (NR45R46) PS (4); r51SH (5); r < 61COOR < 62 > (6); r71NH2 (7); r81R82R83N (8); r91 (OA) nOH (9); (R101O) (R102O) (R103O) P (10); (11), R < 11 > < 1 > < 12 > < 1 > < 13 > < 1 > < 14 > M1; r < 121 > R < 122 > R < 123 > M < 2 > (12); r131R132R133M3 (13), R131R132R133M3 (13) R141-C (= O) NH-R142 (14); r < 151 > R < 152 > R < 153 > C-OH (15); r < 161 >-O-R < 162 > (16); (SR171) (SR172) (SR173) P (17).