8results about How to "Increase oxidation potential" patented technology

The invention provides a zirconium-based solid electrolyte and a preparation method and application thereof, the chemical composition of the inorganic zirconium-based solid electrolyte material is Lix + yZrCl4 + x (OH) y, x is more than or equal to 0 and less than or equal to 2, and y is more than 0 and less than or equal to 2. The hydroxyl group is introduced to induce the material to generate lattice distortion and form a two-phase mixed region, and the rotation characteristic of the hydroxyl group is utilized to reduce the steric hindrance of lithium ion transmission, so that the ionic conductivity is remarkably improved. Besides, the introduction of the hydroxyl group induces in-situ generation of a self-limiting stable interface layer rich in Cl when the electrolyte is in contact with a lithium negative electrode, so that side reaction is effectively inhibited, and direct stable matching of the zirconium-based solid electrolyte and the lithium negative electrode is realized.

The invention belongs to the technical field of batteries, and discloses a dual-ion battery and a preparation method thereof. The preparation method comprises the following steps: adding a polymer monomer in a burdening stage, uniformly dispersing the polymer monomer in a positive pole piece and a negative pole piece, finally injecting an electrolyte added with a polymer initiator, and initiating an in-situ polymerization reaction through high temperature, so that the liquid electrolyte is changed into a gel state. The invention also discloses the dual-ion battery prepared according to the method. The polymer monomers are uniformly distributed in the positive and negative pole pieces, so that the binding force of the active substance and the current collector is enhanced, and the pole piece expansion in the battery circulation process is reduced. In addition, the electrolyte is changed into a gel state, so that the oxidation potential of the electrolyte is remarkably improved, the stability of a positive and negative electrode interface is enhanced, the consumption of the electrolyte is reduced, and the safety performance of the battery is improved.

The application discloses a kind of solid electrolyte and preparation method thereof, polymer composite solid electrolyte and solid lithium battery, belong to solid lithium battery technical field, solid electrolyte includes lithium-containing transition metal oxide and doped element doped in lithium-containing transition metal oxide;The chemical formula of the solid electrolyte is Li x M (1‑y) N y O z ;Wherein, M is any one of transition metal, and the transition metal includes any one of Co, Ni or Mn, N is any one or more of doped element, x>0, 0.001≤y≤0.5, z>0.The solid electrolyte provided by the application has high ionic conductivity, controllable electronic conductivity, good interface compatibility, strong environmental stability and low cost, and is suitable for existing solid lithium battery system.

This invention discloses a composite free radical sludge deodorizer and its preparation method, belonging to the field of sludge treatment technology. The deodorizer consists of an active free radical source, an active activator, a balancing stabilizer, a penetrating dispersant, and a sustained-effect promoter. This invention uses a compound of various persulfates and ferrates as free radical sources to synergistically generate highly active free radicals such as sulfate radicals (·SO4−) and hydroxyl radicals (·OH). Chlorides and quaternary ammonium salts are used as activators, organic acids as stabilizers, and surfactants are innovatively introduced to enhance permeability. This deodorizer can rapidly and thoroughly decompose malodorous substances such as hydrogen sulfide, thiols, ammonia, and humic amines in sludge, mineralizing them into CO2, H2O, and inorganic salts without secondary pollution. Simultaneously, this invention can effectively break down the cell walls of microorganisms in sludge, releasing internal organic matter and significantly improving the methane yield and volatile solids removal rate of subsequent anaerobic digestion. This invention has the advantages of high deodorization efficiency, rapid action, low cost, environmental friendliness, and enhanced sludge resource value.

This invention belongs to the field of electrochemical technology and relates to a high-voltage resistant composite positive electrode sheet and its preparation method for suppressing gas generation during battery cycling. The composite positive electrode sheet includes a positive electrode sheet and a polymer coating on the active material layer of the positive electrode sheet. The polymer coating is a composite polymer coating formed by in-situ copolymerization of phosphorus-containing monomers and fluorinated acrylate monomers in the presence of polyethylene glycol borate under ultraviolet light. The mass ratio of the phosphorus-containing monomers, fluorinated acrylate monomers, and polyethylene glycol borate is (3~4):1:(0.15~0.4). The composite positive electrode sheet of this invention can suppress gas generation during battery cycling and improve its high-voltage resistance (≥4.3V vs Li). + / Li) stability.

The invention relates to the technical field of lithium batteries, and discloses a coagulant electrolyte, a gel-state battery and a preparation method of the gel-state battery. The gel electrolyte comprises a polyelectrolyte and an electrolyte solution, wherein the polyelectrolyte is prepared by reacting a first monomer serving as a cross-linking agent with a second monomer containing nitryl. According to the gel electrolyte, the interface impedance can be reduced, the ionic conductivity can be improved, and the rate capability and the cycle performance of a gel-state battery can be improved; the high oxidation potential is achieved, and the safety performance of the gel-state battery can be improved; in addition, the gel-state battery can achieve a good flame-retardant effect.

The invention relates to a lithium ion battery electrolyte and a lithium ion battery. The lithium ion battery electrolyte comprises a lithium salt, a solvent and an additive, the solvent comprises a carbonic ester solvent and a carboxylic ester solvent, the carboxylic ester solvent comprises a compound A with a structure shown in a formula I, the additive comprises a film-forming additive, the film-forming additive comprises an anhydride additive, and the anhydride additive comprises a compound B with a structure shown in a formula II. The acid anhydride additive comprises an acid anhydride compound B with a structure as shown in a formula II. By designing the composition of the lithium ion battery electrolyte, the problem of poor cycle performance of the current lithium cobalt oxide lithium ion battery under 5V high voltage is solved, and the high-temperature cycle performance and high-temperature storage performance under 5V high voltage are improved.

The application relates to a halide solid-state electrolyte as well as a preparation method and application thereof, and relates to the technical field of new energy materials. 1.5 Zr 0.5 M 0.5 Cl5O 0.5 , wherein M is Ta or Nb; and the inner core is a crystalline halide electrolyte with a chemical general formula of Li 2.5 Y 0.5 Zr 0.5 Cl 6‑4x F 4x , wherein 0.05<=x<=1.45. The halide solid-state electrolyte has high ion conductivity, high oxidation potential, high mechanical performance, good chemical stability with sulfides and high air stability.