30 results about "Boroxine" patented technology

The present invention provides a high capacity lithium secondary cell in which the decrease in capacity associated with the charge and discharge cycle is small, and a method for manufacturing the lithium secondary cell. This lithium secondary cell is characterized in being provided with a positive electrode containing a lithium-transition metal composite oxide for which lithium ions can be reversibly stored and released, a negative electrode, and a non-aqueous electrolyte; the non-aqueous electrolyte containing a boroxine compound represented by the general formula (RO)3(BO)3 (where each R independently represents a C2-6 organic group); and the value of the ratio of the number of moles of the boroxine compound and the number of moles of the transition metal atoms in the lithium-transitionmetal composite oxide being 5.7 * 10<-3> or less. This method for manufacturing a lithium secondary cell is characterized in that the boroxine compound is added to the non-aqueous electrolyte so thatthe ratio value of the mol number of the boroxine compound and the mol number of the transition metal atoms in the lithium-transition metal composite oxide is 5.7 * 10<-3> or less.

The invention relates to the field of electrochemistry, in particular to a lithium ion battery. The lithium ion battery comprises a positive pole piece, a negative pole piece, an isolating membrane and electrolyte, wherein the positive pole piece comprises a positive current collector and a cathode active material layer; the cathode active material layer comprises a cathode active material and a cathode additive; the cathode additive is selected from a lithium phosphate salt compound, the electrolyte comprises an electrolyte and a solvent, the electrolyte further comprises an acid removing agent and a film forming additive, the acid removing agent is selected from a cyclic anhydride compound, and the film forming additive is selected from a boroxane compound. According to the invention, the cathode additive is introduced into the positive electrode plate, the lithium salt can be stabilized by introducing the acid removing agent and the film forming additive into the electrolyte of thebattery, so that the lithium salt is prevented from being decomposed to generate HF to accelerate dissolution of positive manganese, HF in the electrolyte can be removed, and the cycle performance and/or storage performance of the battery cell are effectively improved.

An ionic conductor according to the present invention includes an electrolyte salt for ionic conduction, an ionically conducting molecule including a molecular chain which provides an ion conducting pathway and a boroxine ring bonded to the molecular chain and trapping anions resulting from the electrolyte salt, and a structural member for dispersion and immobilization of the ionically conducting molecule and the electrolyte salt therein. The structural material gives the ionic conductor mechanical strength, the ionically conducting molecule provides an ion conducting pathway, and the electrolyte salt gives it ionic conductivity.

The invention discloses self-repairing polyurethane based on boroxine and a preparation method of the self-repairing polyurethane, belonging to the technical field of material science. The preparation method comprises the following steps: firstly, preparing an isocyanate-terminated polyurethane prepolymer, and then subjecting the isocyanate-terminated polyurethane prepolymer to reacting with boroxine having different terminal groups under different conditions to prepare the self-repairing polyurethane based on the boroxine. According to the invention, the boroxine with a three-foot structure and dynamic reversible performance is introduced into a polyurethane chain as a cross-linking agent, so the cross-linking density of polyurethane is improved, and the self-repairing polyurethane with more excellent mechanical performance is prepared; and through combination with the advantages of designability of polyurethane and adjustability of soft and hard segments of polyurethane, the preparation route of the method is simple, the complexity of the system in design and processing is reduced, and an effective way is expected to be provided for solving contradiction between high mechanical strength and good repairing performance of a polyurethane material.

A process for production of a borohydride compound M(BH₄)_y. The process has three steps. The first step combines a compound of formula (R¹O)_yM with aluminum, hydrogen and a metallic catalyst containing at least one metal selected from the group consisting of titanium, zirconium, hafnium, niobium, vanadium, tantalum and iron to produce a compound of formula M(AlH₃OR¹)_y, wherein R¹ is phenyl or phenyl substituted by at least one alkyl or alkoxy group; M is an alkali metal, Be or Mg; and y is one or two; wherein the catalyst is present at a level of at least 200 ppm based on weight of aluminum. The second step combines the compound of formula M(AlH₃OR¹)_y with a borate, boroxine or borazine compound to produce M(BH₄)_y and a byproduct mixture containing alkali metal and aluminum aryloxides. The third step separates M(BH₄)_y from the byproduct mixture.

The invention discloses double-silver low-emissivity coated glass and a preparation method thereof. The silver nanowires are used as the material of the silver functional layer to form a network structure, so that the infrared radiation loss is effectively increased, and the infrared radiation resistance of the glass is improved; acetone doping and sulfuric acid post-treatment are utilized to increase the conductivity of the conductive adhesive layer and increase dielectric loss radiation; by utilizing an electronic channel provided by the conductive adhesive layer and a three-dimensional structure of the middle dielectric layer, the radiation absorption loss and reflection loss of the glass are synergistically increased; nano-zinc oxide is uniformly distributed by utilizing the dispersitypromoting property of complex protein acid salt in the intermediate dielectric layer so that the light transmittance is improved, and sodium ions are inhibited from diffusing into the film layer in the toughening process; the damage to the surface of the glass is reduced by utilizing the super-hydrophobicity and self-repairability of the protective layer, namely, the N-boroxane-PDMS; by utilizinga three-dimensional structure formed in multiple layers, the toughness of the surface of the glass is effectively improved, and the impact strength is improved.

The present invention relates to medicinal composition for boron neutron catching treatment, and is a kind medicinal composition for catching boron neutron to treat liver cancer. The medicinal composition includes triphenyl boroxin as the boron source for boron neutron catching treatment and pharmaceutically acceptable carrier, such as iodized opium poppy seed oil.

A process for preparing halogenated azaindole compounds makes use of stable reagents including a brominating reagent, a boroxine and a sulfonic anhydride to enhance the selectivity and yield of the final product. In addition, the process is associated with various other advantages, including the ability to recycle reagents, cost reduction, and improved manufacturability.

The invention discloses a quasi-solid electrolyte for a dye-sensitized solar cell. The quasi-solid electrolyte comprises the following components in parts by weight: 20-30 parts of epoxy boroxine organic ions; 15 to 20 parts of 2-(dimethylamino) acetonitrile iodomethane; 15 to 20 parts of quinoline iodoethane; 5-10 parts of elemental iodine; 5-10 parts of an additive; and 10 to 15 parts of 2, 6-deoxy-6-iodine-1, 2: 3, 4-di-o-isopropylidene-alpha-d-galactopyranoside ionizing modified fullerene. The invention also discloses a preparation method of the quasi-solid electrolyte for the dye-sensitized solar cell and a dye-sensitized solar cell adopting the electrolyte. The quasi-solid electrolyte for the dye-sensitized solar cell has the advantages of higher conductivity, better stability and easiness in package, and is more beneficial to the preparation of a dye-sensitized solar cell with high photoelectric conversion efficiency and a long cycle life.

The invention discloses a coating for the surface of a magnetic roller of a magnetic separator, and the coating is prepared from the following raw materials in parts by weight: 30-40 parts of methacrylate-terminated hyperbranched polythionocarbamate, 2-4 parts of allyl phenoxyacetate, 3-6 parts of N-(4-cyano-3-trifluoromethylphenyl) methacrylamide, 3-6 parts of 2, 4, 6-trimethyl-1, 3-pentanediol monoisobutyrate, 3-6 parts of 2, 4, 6-trimethyl-1, 3-pentanediol monoisobutyrate, 3-6 parts of 2, 4, 6-trimethyl-1, 3-pentanediol monoisobutyrate, the invention relates to a graphene-coated nano aluminum powder coating which is prepared from the following components in parts by weight: 1-2 parts of 2, 6-trivinyl boroxane, 5-8 parts of vinyl-terminated fluorosilicone oil, 5-10 parts of graphene-coated nano aluminum powder, 2-4 parts of a coupling agent, 0.5-0.8 part of a defoaming agent, 0.3-0.5 part of a flatting agent, 1-2 parts of a photoinitiator, 15-20 parts of filler and 20-30 parts of a solvent. The invention further discloses a preparation method of the coating for the surface of the magnetic roller of the magnetic separator. The coating for the surface of the magnetic roller of the magnetic separator, disclosed by the invention, is sufficient in adhesion performance, excellent in aging resistance and wear resistance, remarkable in protection effect on the magnetic roller of the magnetic separator and long in service life.

The present invention generally relates to compositions for use in lubricating oils. In certain aspects, the present invention is generally directed to boroxine compounds having alkyl groups where oneor more of the alkyl groups contains at least 8 carbon atoms. Such compounds may present improved hydrolytic stability, compared to other boroxine compounds. Such boroxine compounds may be used, forexample, to improve seal compatibility in an engine. Other aspects of the invention are generally directed to systems and methods for making such boroxine compounds, engine oils containing such boroxine compounds, methods of using such boroxine compounds, or the like.