39 results about "Anion receptor" patented technology

The present invention provides compositions, formulations and methods providing for the effective dissolution of inorganic fluorides in solvents via incorporation of a dissociating agent component. Dissociating agents of the present invention participate in chemical reactions in solution, such as complex formation, acid-base reactions, and adduct formation reactions, that result in enhancement in the dissolution of inorganic fluorides in a range of solvent environments. Dissociating agents comprising Lewis acids, Lewis bases, anion receptors, cation receptors or combinations thereof are provided that significantly increase the extent of dissolution of a range of inorganic fluorides, particularly inorganic fluorides, such as LiF, that are highly insoluble in many solvents in the absence of the dissociating agents of the present invention.

The present invention provides high capacity and high voltage Li-ion batteries that have a carbonaceous cathode and a nonaqueous electrolyte solution comprising LiF salt and an anion receptor that binds the fluoride ion. The batteries can comprise dual intercalating electrode Li ion batteries. Methods of the present invention use a cathode and electrode pair, wherein each of the electrodes reversibly intercalate ions provided by a LiF salt to make a high voltage and high specific capacity dual intercalating electrode Li-ion battery. The present methods and systems provide high-capacity batteries particularly useful in powering devices where minimizing battery mass is important.

Provided is a lithium secondary battery comprising an anode, a cathode and a non-aqueous electrolyte, wherein the anode includes an aqueous binder, and the non-aqueous electrolyte contains (a) a cyclic anhydride or a derivative thereof; and (b) any one anion receptor selected from the group consisting of a borane compound, a borate compound and mixtures thereof. According to the present invention, a stable SEI film is formed on the anode, and the life characteristics of the battery are improved by controlling the LiF content in the SEI film.

The invention provides an anion receptor based on nitrophenylhydrazone and phenolic hydroxyl groups. The anion receptor is prepared by the following steps: 2, 6-diformyl-4-irgasan and paranitrophenylhydrazine are added into a reactor according to the quantity ratio of between 1 to 2 and 1 to 2.5, paratoluenesulfonic acid which accounts for 0.001 to 0.01 percent of the total mass of reactants is added as a catalyst, absolute ethyl alcohol which is 20 to 40 times of the total mass of the reactants is added as a solvent, and the reflux is performed for 3 to 6 hours at a temperature of between 70 and 100 DEG C to generate an orange precipitate; and the mixture is cooled to room temperature, and then the precipitate is filtered, is scrubbed by the absolute ethyl alcohol, and is recrystallized by DMSO to obtain the anion receptor. The anion receptor has the colorimetric identification ability to fluoride ions, acetates and dihydrogen phosphates in a DMSO solution, and has the selective colorimetric detection ability to acetate ions in DMSO / H2O solution. Anion detection test paper prepared by absorbing the anion receptor on the pretreated filter paper and drying the filter paper is used for colorimetric detection of the fluoride ions, the acetates and the dihydrogen phosphates, and has the characteristics of convenience for carrying, convenient use, high detection sensitivity and so on.

The invention relates to the technical fields of light industry and chemical materials, particularly a boron compound branched carboxy nitrile rubber, and a preparation method and application thereof. The boron compound branched carboxy nitrile rubber is prepared by carrying out esterification reaction on carboxy nitrile rubber and a boron compound disclosed as Formula G. The boron compound branched carboxy nitrile rubber can be used as a polymer electrolyte of a lithium ion battery. The boron compound branched carboxy nitrile rubber has an anionic receptor group capable of performing the functions of stably dissociating anions and inhibiting oriented migration of anions. Besides, the branched structure of the boron compound branched carboxy nitrile rubber can effectively enhance the motility of the molecule segment and promote the migration of the lithium ions. Therefore, when being used as a polymer electrolyte of a lithium ion battery, the boron compound branched carboxy nitrile rubber provided by the invention has the advantage of high room-temperature or high-temperature electric conductivity, and can avoid electrode polarization and high ion migration number.

The invention discloses an azothiourea-type anion receptor, which is characterized in that: the molecular structure formula of the azothiourea-type anion receptor is shown in formula 1. The invention also discloses a preparation method of the azothiourea anion acceptor. The present invention can accurately and rapidly identify whether the halogen anion is F- by observing the ultraviolet spectrum of the anion acceptor. At the same time, the azothiourea anion acceptor of the present invention can also convert the anion acceptor into a cis structure under the irradiation of visible light, thereby identifying whether the added dicarboxylic acid anion is azelaic acid ion. The preparation method of the anion receptor of the present invention is easy, and the detection method only needs to be detected by naked eye observation and ultraviolet light absorption detection, the detection method is simple, the anion receptor consumption is small, the cost is low and easy to realize, and it has strong practicability.

An aluminum secondary battery includes a positive electrode 11, a negative electrode 12, and an electrolyte, wherein the positive electrode 11 includes an anion receptor such as polyaniline, the negative electrode 12 includes aluminum or an aluminum alloy, the electrolyte includes an aluminum salt, a sulfone, and a solvent with a dielectric constant of 20 or less, wherein the aluminum salt is typically AlCl3 or the like, the sulfone is typically ethyl n-propyl sulfone or the like, and the solvent with a dielectric constant of 20 or less is typically toluene or the like.

The invention provides an anion receptor based on 5-nitrofuran formyl hydrazone and phenolic hydroxyl. The anion receptor is obtained by mixing 2, 6-dimethylacyl-4-chlorophenol and 5-(4-nitro)-phenyl-2-benzoyl diazanyl furan according to certain proportion, stirring and refluxing the mixture for 3 to 8 hours at a temperature of between 70 and 100 DEG C by using anhydrous ethanol as a solvent and p-toluene sulfonic acid as a catalyst, distilling out most of the solvent through reducing the pressure, performing suction filtration after cooling, and performing recrystalization on the solid product by using DMSO-EtOH. The anion receptor has color comparison recognizing ability on fluorion, acetic acid radical and phosphoric acid dihydrogen radical in a DMSO solution. The anion receptor is dissolved in DMF to be prepared into 0.5 to 2.0 percent of solution which is cooled to room temperature to be prepare into stable anion receptor organic gel used for performing colorimetric detection on the fluorion, and the acetic acid radical and phosphoric acid dihydrogen radical ions in the DMSO solution. The anion receptor has the advantages of convenience for carrying, convenient use, high detection sensitivity and the like.

The present invention is generally related to electrolytes containing anion receptor additives to enhance the power capability of lithium-ion batteries. The anion receptor of the present invention is a Lewis acid that can help to dissolve LiF in the passivation films of lithium-ion batteries. Accordingly, one aspect the invention provides electrolytes comprising a lithium salt; a polar aprotic solvent; and an anion receptor additive; and wherein the electrolyte solution is substantially non-aqueous. Further there are provided electrochemical devices employing the electrolyte and methods of making the electrolyte.

The present invention relates to the compound of formula (I), wherein Ar1, R1, R2, R3, R4a, R4b and (R5)n are as described in the description; its preparation, its pharmaceutically acceptable salt and its use as medicine Uses, pharmaceutical compositions containing one or more compounds of formula (I), and especially with respect to their use as orexin receptor antagonists.