7 results about "Electrolyte cation" patented technology

The invention relates to a preparation method of an intrinsic flame-retardant organic framework compound as well as a product and application thereof, and belongs to the technical field of battery materials. The flame-retardant organic framework compound disclosed by the invention is formed by competitive coordination of organic flame-retardant molecules rich in N / P / halogen, traditional organic ligands and metal ions, and the introduction of the flame retardant endows excellent flame-retardant performance, so that continuous combustion is prevented; besides a metal-organic coordination bond formed between a traditional ligand and metal ions, the added flame retardant and central metal ions form a new metal-organic coordination bond, so that the crystallinity of the metal organic framework compound can be regulated and controlled, and the metal organic framework compound can be in a crystalline state or an amorphous state or a mixed state of the crystalline state and the amorphous state. When the intrinsic flame-retardant organic framework compound prepared by the method is used as a secondary battery diaphragm material, strong chemical adsorption and catalytic action on polysulfide are realized, fixation of electrolyte anions can be realized, and uniform distribution and migration of electrolyte cations are promoted, so that the rate capability and the cycling stability of a battery are improved.

The present invention provides a long-term storage gel battery based on an accordion structure and its preparation method. The battery comprises a high-salinity gel electrolyte, a cation-selective gel electrolyte, a low-salinity gel electrolyte, an anion-selective gel electrolyte, a paraffin separator, and graphite electrodes. The combination of these modules reduces the complexities of gel battery preparation and enables the long-term storage of the prepared gel battery.

An energy storage apparatus, an energy storage system, and an electric device. The energy storage apparatus includes an electrolytic solution, a positive electrode sheet, a separator, and a negative electrode sheet. The kinetic factor α of the electrolytic solution satisfies the formula: α=k1×ε×lnD+k2×σ×T / 100C and the kinetic factor α of the electrolytic solution satisfies: −10≤α≤30, wherein ε is the viscosity of the electrolytic solution, D is the diffusion coefficient of electrolyte cations in the electrolytic solution, σ is the electrical conductivity of the electrolytic solution, T is the thermodynamic temperature of the electrolytic solution, C is the molar concentration of an electrolyte, k1 is the viscosity correction coefficient of the electrolytic solution, and k2 is the electrical conductivity correction coefficient of the electrolytic solution.

The invention provides a preparation method of a wide-temperature-range deep eutectic electrolyte containing episulfonium cations, and belongs to the technical field of electrolyte material preparation. The invention aims to solve the problems that the existing deep eutectic electrolyte is insufficient in cation stability, poor in low-temperature performance and tedious in synthesis process. The method comprises the following steps: S1, preparing faint yellow viscous episulfonium halide; s2, adding the episulfonium halide and the lithium salt of the target weak coordination anion into an ionic liquid solvent to generate high-purity episulfonium salt; s3, preparing a composite HBD; s4, adding the composite HBD, high-purity episulfonium salt and alkali metal salt into a dry three-neck flask, and stirring to obtain a mixed system; and S5, after stirring is completed, carrying out vacuum drying on the mixed system to obtain the uniform and transparent functionalized deep eutectic electrolyte.

The invention provides a transmission line model and a total battery structure model, and relates to the technical field of lithium ion batteries, the transmission line model comprises a solid-phase electron transmission track, an electrolyte cation transmission track and an electrolyte anion transmission track which are arranged in sequence; the solid-phase electron transmission track and the electrolyte cation transmission track are connected through interface impedance, and the electrolyte cation transmission track and the electrolyte anion transmission track are connected through interface impedance; the solid-phase electron transmission track comprises a positive pole domain track arranged in a positive pole domain and a negative pole domain track arranged in a negative pole domain; the electrolyte cation transmission track and the electrolyte anion transmission track comprise domain tracks located in a positive pole domain, a diaphragm domain and a negative pole domain respectively, and each domain track comprises a plurality of connection impedances. The transmission line model and the total battery structure model provided by the invention realize a three-track model, and a mesh method is realized in combination with a mesh loop, so that fine description of the transmission line model is realized, and the solving efficiency and stability are further improved.

A system may comprise: a liquid-metal electrode; an electrolyte including electrolyte cations to exit the electrolyte and to transit through the liquid-metal electrode to participate in a reduction reaction of a first redox half-reaction at an interface between a first substance and the liquid-metal electrode; a counter-electrode, wherein electrolyte anions are to participate in an oxidation reaction of a second redox half-reaction at or near the counter-electrode within the electrolyte; and circuitry to convert between electrical energy and chemical bond energy through an electro-chemical redox reaction of the pair of redox half-reactions. A method may comprise: providing a liquid-metal electrode, an electrolyte including electrolyte cations and electrolyte anions, a counter-electrode, and circuitry electrically coupled to the liquid-metal electrode and to the counter-electrode; permitting the liquid-metal electrode to interact with a first substance; and arranging the electrolyte to be in contact with the counter-electrode.

Methods and systems for electrolyte regeneration are provided, which regenerate a spent alkaline electrolyte (SE) comprising dissolved aluminum oxide hydrates from an aluminum-air battery, by electrolysis, to precipitate aluminum tri-hydroxide (ATH) and form regenerated alkaline electrolyte. A same-cation salt is added to an anolyte solution used in the electrolysis (and devoid of aluminates) to replenish a corresponding electrolyte cation and maintain the conditions for ATH precipitation. The regeneration may be carried out continuously, e.g., mixing the SE and the same-cation salt in a salt tank that delivers the anolyte solution, removing a portion of the regenerated alkaline electrolyte from a catholyte tank delivering the catholyte solution, and filtering the ATH from a solution delivered from the salt tank to the anolyte tank. Optionally, the salt may be a buffering salt, and in some cases chemical reactions may be used to enhance the regeneration by electrolysis.