1028 results about "Carboxylic ester" patented technology

The invention relates to a battery monomer, a battery device and a power utilization device, the battery monomer comprises an electrode assembly and an electrolyte, and the electrode assembly comprises a positive pole piece and a negative pole piece; the positive pole piece comprises a positive pole current collecting part and a positive pole film layer; the positive pole film layer comprises lithium-containing phosphate with an olivine structure; the negative pole piece comprises a negative pole current collecting part and a negative pole film layer, and the negative pole film layer comprises a carbon-based material; the electrolyte comprises a carboxylic ester solvent, a first additive and fluorine-containing lithium sulfimide, and the mass content of the carboxylic ester solvent is 8%-60%; the total mass content of the first additive is 2.5%-10%, the first additive comprises 1, 3-propane sultone with the mass content larger than or equal to 0, an ethylene carbonate derivative with the mass content larger than or equal to 0 and vinylene carbonate with the mass content larger than 0, and the ethylene carbonate derivative comprises a compound shown in the formula A; the mass content of the fluorine-containing lithium sulfimide is 4%-8%. According to the invention, the rapid charging performance and the cycle performance of the battery monomer can be improved. # imgabs0 # formula A

The invention relates to a battery monomer, a battery device and a power utilization device, the battery monomer comprises an electrode assembly and an electrolyte, and the electrode assembly comprises a positive pole piece and a negative pole piece; the positive pole piece comprises lithium-containing phosphate with an olivine structure; the negative pole piece comprises graphite particles; the electrolyte comprises a carboxylic ester solvent and a first additive, the thickness of the single-side negative electrode film layer is 50 microns to 75 microns, and the volume average particle size of the graphite particles is 8.5 microns to 13.5 microns; based on the mass of the electrolyte, the mass content of the carboxylic ester solvent is 8%-60%, the total mass content of the first additive is 3%-10%, the first additive comprises 1, 3-propane sultone with the mass content larger than or equal to 0, an ethylene carbonate derivative with the mass content larger than or equal to 0 and vinylene carbonate with the mass content larger than or equal to 3%, and the ethylene carbonate derivative comprises a compound shown in the formula A. According to the invention, the rapid charging performance and the cycle performance of the battery monomer under high energy density can be improved. # imgabs0 # formula A

The invention relates to a battery monomer, a battery device and a power utilization device, the battery monomer comprises an electrode assembly and an electrolyte, the electrode assembly comprises a positive pole piece and a negative pole piece, the positive pole piece comprises a positive current collector and a positive film layer, the positive film layer comprises a positive active material, the positive active material comprises lithium-containing phosphate of an olivine structure, and the electrolyte is a lithium-containing lithium-containing phosphate of a lithium-containing lithium-containing lithium-containing lithium-containing lithium-containing lithium-containing lithium-containing lithium-containing lithium-containing lithium-containing lithium-containing lithium-containing lithium-containing electrolyte. The resistance of the positive pole piece is 0.1 ohm to 30 ohm, the negative pole piece comprises a negative current collector and a negative film layer, the resistance of the negative pole piece is 0.001 ohm to 0.01 ohm, the electrolyte comprises an organic solvent, the organic solvent comprises a chain ester solvent, and the mass content of the chain ester solvent in the organic solvent is 5% to 75%; the conductivity of the electrolyte at room temperature is 13 mS / cm to 20 mS / cm. The heat production amount of the battery monomer can be reduced, and the use reliability and the cycle performance of the battery monomer can be improved.

The invention provides a battery monomer, a battery device and a power utilization device, the battery monomer comprises an electrode assembly and an electrolyte, the electrode assembly comprises a first pole piece and a second pole piece, each of the first pole piece and the second pole piece comprises a coating part and a tab, the coating part is coated with an active material layer, and the tab is not coated with the active material layer; one of the first pole piece and the second pole piece is a positive pole piece, and a positive active material of the positive pole piece comprises lithium-containing phosphate with an olivine structure; the coating part of the first pole piece comprises a first straight section, the coating part of the second pole piece comprises a second straight section, the first straight section and the second straight section are stacked in the thickness direction of the electrode assembly, and the ratio of the number of the tabs of the first pole piece to the number of the first straight sections of the first pole piece is 0.5-2; an organic solvent of the electrolyte comprises a chain carboxylic ester solvent, and the mass content of the chain carboxylic ester solvent in the organic solvent is 8-90%. The use reliability and the cycle performance of the battery monomer can be improved.

The invention provides a battery monomer, a battery device and a power utilization device. The battery monomer comprises an electrode assembly, wherein the electrode assembly comprises a positive plate, a negative plate and a non-aqueous electrolyte; the positive plate comprises a positive current collector and a positive film layer, and the negative plate comprises a negative current collector and a negative film layer; the positive electrode film layer comprises a positive electrode active material, and the positive electrode active material comprises a lithium manganese iron phosphate material and a nickel cobalt lithium manganate material; in the nickel cobalt lithium manganate material, the molar ratio of Ni in the sum of the three elements of Ni, Co and Mn is 0.5-0.95; the non-aqueous electrolyte comprises vinylene carbonate, and the mass content of the vinylene carbonate in the non-aqueous electrolyte is 0.5%-2%; the non-aqueous electrolyte comprises at least one of linear carbonic ester and linear carboxylic ester, and the conductivity of the non-aqueous electrolyte is 9-14 mS / cm. The energy density, the cycle performance and the power performance of the battery monomer are improved at the same time.

The invention discloses a tetranuclear ladder type organic tin carboxylate complex as well as a preparation method and application thereof, and belongs to the technical field of metal complexes, the tetranuclear ladder type organic tin carboxylate complex is prepared by taking para-position or ortho-position substituted benzoic acid as a ligand and taking organic tin dimethyl tin oxide as a substrate. The preparation method is simple to operate and mild in condition. The tetranuclear ladder type organic tin carboxylate complex can be used as a photocatalyst for photocatalytic production of H2O2, and the photocatalytic H2O2 production rate is as high as 5.12 * 10 < 3 > [mu] mol.g <-1 >. H <-1 > and is higher than the H2O2 production rate of a photocatalyst reported in the existing literature.

The invention relates to a battery monomer, a battery device and a power utilization device, the battery monomer comprises an electrode assembly and an electrolyte, the electrode assembly comprises a positive pole piece, the positive pole piece comprises a positive active material layer, and the positive active material layer comprises lithium-containing phosphate of an olivine structure; the electrolyte comprises, by mass, 8-30% of a carboxylic ester solvent, a lithium salt and an unsaturated ester additive, the lithium salt comprises lithium hexafluorophosphate and fluorine-containing lithium sulfimide, the mass content of the fluorine-containing lithium sulfimide in the lithium salt is 18-45%, the mass content of the unsaturated ester additive in the electrolyte is 0.05-5%, and the mass content of the unsaturated ester additive in the electrolyte is 0.05-5%. The unsaturated ester additive comprises one or more of vinylene carbonate, vinylethylene carbonate, allyl ethyl carbonate and a fluoro-carbonate additive; the amount of electrolyte in the battery cell is 2.8 g / Ah to 3.2 g / Ah. According to the invention, rapid charging and use reliability of the single battery can be considered.

The invention discloses an electrolyte, an electrochemical device comprising the electrolyte and a vehicle. The electrolyte comprises a solvent, a first additive and a second additive, the solvent comprises chain carboxylic ester, and the first additive comprises a sulfonate compound or / and a sulfate compound; the second additive comprises vinylene carbonate or / and fluoroethylene carbonate. According to the electrolyte disclosed by the invention, the chain carboxylic ester solvent, the first additive containing the sulfonate compound or / and the sulfate compound and the second additive containing the vinylene carbonate or / and the fluoroethylene carbonate are matched for use; the rapid charging capability and the high-temperature cycle performance of a lithium iron phosphate system battery with high safety performance can be improved, and the application of lithium iron phosphate in a power battery is further widened.

The invention relates to a lithium battery low-temperature electrolyte and a lithium ion battery, and belongs to the technical field of lithium batteries. Comprising the following steps: reducing the mass concentration (llt of conventional lithium salt by introducing a cosolvent; 13.5%), a synergistic positive / negative electrode film-forming additive, a low-impedance lithium salt additive and a functional additive. According to the invention, common low-melting-point and low-viscosity carboxylic ester is selected as a cosolvent, and the concentration of the lithium salt is reduced, so that the viscosity of the electrolyte at a low temperature is reduced, and the ionic conductivity is improved; a stable low-impedance positive / negative electrode interface film is constructed by cooperating with conventional positive / negative electrode film-forming additives such as vinylene carbonate and fluoroethylene carbonate, and the solvation structure of the electrolyte is regulated and controlled by introducing lithium salt additive anions, so that the desolvation process of lithium ions at low temperature is promoted, the low-temperature performance of the lithium battery is improved, and the service life of the lithium battery is prolonged. And the long cycle life of the electrolyte at normal temperature can also be ensured.

The invention discloses a battery monomer, a battery device and electric equipment, the battery monomer comprises an electrode assembly and an electrolyte, the electrode assembly comprises a positive pole piece, the positive pole piece comprises a positive current collector and a positive active material layer arranged on at least one side of the positive current collector, and the positive active material layer comprises lithium-containing phosphate; the electrolyte comprises a carboxylic ester solvent and a linear carbonic ester solvent, based on the total mass of the electrolyte, the mass ratio of the carboxylic ester solvent is 5%-25%, and the mass ratio of the linear carbonic ester solvent is 20%-49%; the electrolyte further comprises a non-lithium salt additive, the non-lithium salt additive comprises a phosphate ester additive, and the non-lithium salt additive further comprises at least one of a carbonate ester additive, a sulfate ester additive, a borate ester additive, a silane additive and a sultone additive. The total mass of the non-lithium salt additive accounts for 0.1%-5%.

The embodiment of the invention provides a sodium-ion battery and electric equipment, the sodium-ion battery comprises a positive electrode, a negative electrode, a diaphragm and an electrolyte, and the electrolyte comprises a cyclic carbonate solvent and / or a carboxylic ester solvent; the ratio of the mass ratio of the cyclic carbonate solvent in the electrolyte to the sum of the D50 particle size of the positive electrode active material and the D50 particle size of the negative electrode active material is (0.005: 1)-(0.2: 1); the ratio of the mass ratio of the carboxylic ester solvent in the electrolyte to the sum of the D50 particle size of the positive electrode active material and the D50 particle size of the negative electrode active material is 0.002: 1 to 0.1: 1; wherein the unit of the D50 particle size is [mu] m. According to the sodium-ion battery, by reasonably designing the specific incidence relation between the D50 particle size of the positive and negative electrode active materials and the electrolyte solvent, the ion transmission and ion diffusion capability in the charging and discharging process of the battery can be effectively balanced, the low-temperature dynamic performance of the battery is improved, and meanwhile, the high-temperature performance is considered.

The invention discloses a battery monomer, a battery device and a power utilization device. The battery monomer comprises an electrode assembly and an electrolyte; wherein the electrode assembly comprises a positive electrode plate and a negative electrode plate, a positive electrode film layer of the positive electrode plate comprises a positive electrode active material, the positive electrode active material comprises lithium-containing phosphate, and the porosity of the positive electrode plate is 20-30%; a negative electrode film layer of the negative electrode plate comprises a negative electrode active material, the negative electrode active material comprises graphite, and the porosity of the negative electrode plate is 24-33%; the electrolyte comprises an electrolyte salt and a solvent, the solvent comprises chain carboxylic ester and chain carbonic ester, the mass ratio of the chain carboxylic ester in the electrolyte is 8.5%-40%, and the mass ratio of the chain carbonic ester in the electrolyte is 8.5%-50%. According to the technical scheme, good fast charging performance, good cycle performance and high energy density of the battery are considered.

The invention relates to a battery monomer, a battery device and a power utilization device, the battery monomer comprises an electrode assembly, a first heat insulation part and an electrolyte, the electrode assembly comprises a positive pole piece, an isolation membrane and a negative pole piece, the positive pole piece comprises a positive active material layer, and the negative pole piece comprises a negative active material layer; the positive electrode active material layer comprises lithium-containing phosphate with an olivine structure and a positive electrode conductive agent, and the mass content of the positive electrode conductive agent is 0.5-1.2%; the electrolyte comprises a carboxylic ester solvent, a silane-based additive and an unsaturated ester additive, the mass content of the carboxylic ester solvent in the electrolyte is 8%-30%, and the mass content of the silane-based additive in the electrolyte is 0.05%-1%; the mass content of the unsaturated ester additive in the electrolyte is 0.05%-3%, and the first heat insulation part is located between the first area and the main body part and at least covers the first area. According to the invention, rapid charging and use reliability of the single battery can be considered.

The invention provides a single battery, a battery device and a power utilization device, the single battery comprises an electrode assembly, the total width of a positive pole lug part accounts for 50%-100% of the total size of a pole lug connecting edge along the extension direction of the pole lug connecting edge of a positive pole main body part, and the total width of a negative pole lug part accounts for 50%-100% of the total size of the pole lug connecting edge along the extension direction of the pole lug connecting edge of a negative pole main body part; wherein the coating weight of the single negative electrode active material layer is 0.1 g / 1540.25 mm < 2 >-0.145 g / 1540.25 mm < 2 >, the electrolyte comprises at least one of dimethyl carbonate and linear carboxylic ester, the structural formula of the linear carboxylic ester meets R1-COO-R2, and R1 and R2 are independently selected from C1-C5 alkyl or halogenated alkyl respectively; based on the total mass of the organic solvent, the mass fraction of the first solvent is 4-72%.

The invention relates to a battery monomer, a battery device and a power utilization device, the battery monomer comprises an electrode assembly and an electrolyte, the electrode assembly comprises a positive pole piece, an isolating membrane and a negative pole piece, the positive pole piece comprises a positive current collector and a positive active material layer arranged on at least one side of the positive current collector, the negative electrode piece comprises a negative electrode current collector and a negative electrode active material layer arranged on at least one side of the negative electrode current collector, the positive electrode active material layer comprises lithium-containing phosphate with an olivine structure, the electrolyte comprises a carboxylic ester solvent, fluorine-containing lithium sulfimide, lithium fluorosulfonate and phosphorus oxyfluoride, the mass content of the carboxylic ester solvent in the electrolyte is 8-30%, and the mass content of the fluorine-containing lithium sulfimide in the electrolyte is 10-30%. The mass content of the fluorine-containing lithium sulfimide in the electrolyte is 3%-8%, the mass content of the lithium fluorosulfonate in the electrolyte is 0.05%-0.5%, and the mass content of the phosphorus oxyfluoride in the electrolyte is 0.05%-0.5%. According to the invention, rapid charging and use reliability of the single battery can be considered.

A secondary battery and an electric device. The secondary battery comprises an electrode assembly and an electrolyte, wherein the electrode assembly comprises a positive electrode sheet, a negative electrode sheet and a separator; the positive electrode sheet comprises a positive-electrode active material layer, and the positive-electrode active material layer comprises a positive-electrode active material; the negative electrode sheet comprises a negative-electrode active material layer, and the negative-electrode active material layer comprises a negative-electrode active material; the coating weight of the positive-electrode active material layer is Wz, the coating weight of the negative-electrode active material layer is Wf, and Wz and Wf satisfy: 1.6Wf≤Wz≤2.2Wf, and 3.25 mg / cm2≤Wf≤5.84 mg / cm2; the Dv99 of the positive-electrode active material is 27 μm to 33 μm, and the Dv99 of the negative-electrode active material is 23 μm to 28 μm; and the electrolyte comprises an organic solvent, a lithium salt and a nitrile additive, the organic solvent comprises a chain carboxylic ester, and based on the mass of the electrolyte, the mass percentage content of the chain carboxylic ester is 6% to 56% and the mass percentage content of the nitrile additive is 0.01% to 10%. The secondary battery has good dynamic performance during cycling and good high-temperature stability.

The invention discloses an electrolyte and a battery. The electrolyte comprises a solvent, a lithium salt and an additive, the solvent comprises acetonitrile and carboxylic ester, the additive comprises a first additive, a second additive and a third additive, the first additive is at least one of phosphate, borate, fluorophosphate and fluoborate with a film-forming potential of 1.3-2V, and the third additive is at least one of lithium salt and fluoborate with a film-forming potential of 1.3-2V. The second additive is at least one of a sulfur-containing additive, a boron-containing additive and a phosphorus-containing additive, and the third additive is a negative electrode film-forming additive; and Y is more than 0.025 and less than 60. According to the invention, a solvent system and an interface film forming mechanism of the electrolyte are synergistically regulated and controlled, so that the core problem of violent side reaction between the acetonitrile-based electrolyte and the negative electrode is solved, and meanwhile, the combination of high energy density and ultrafast charging performance is realized. The electrolyte is suitable for high-energy-density, wide-temperature-range and fast-charging type lithium iron phosphate batteries.

The invention relates to a battery monomer, a battery device and a power utilization device, the battery monomer comprises a negative pole piece, a positive pole piece and an electrolyte, the battery monomer comprises a negative current collector and a negative film layer arranged on at least one side of the negative current collector, the negative film layer comprises a negative active material, and the negative active material comprises a carbon-based material; the positive pole piece comprises a positive pole current collector and a positive pole film layer arranged on at least one side of the positive pole current collector, the positive pole film layer comprises a positive pole active material and a positive pole additive, and the positive pole active material comprises the positive pole additive which comprises at least one of lithium-containing iron oxide and lithium-containing cobalt oxide; the electrolyte comprises an organic solvent, the organic solvent comprises a carboxylic ester solvent, and the mass content of the carboxylic ester solvent in the electrolyte is 3%-70%. The high-temperature cycle performance of the battery monomer can be further improved.

The invention relates to a battery monomer, a battery device and a power utilization device, the battery monomer comprises a negative pole piece and an electrolyte, the negative pole piece comprises a negative current collector and a negative film layer arranged on at least one side of the negative current collector, the negative film layer comprises a negative active material, the negative active material comprises a silicon-based material and a carbon-based material, and the silicon-based material and the carbon-based material are arranged on the negative current collector. The mass content of the silicon element of the silicon-based material in the negative electrode active material is 0.3%-15%, and the single-side coating weight of the negative electrode film layer is 80 mg / 1540.25 mm < 2 >-150 mg / 1540.25 mm < 2 >; the electrolyte comprises an organic solvent, the organic solvent comprises a carboxylic ester solvent, and the mass content of the carboxylic ester solvent in the electrolyte is 3%-70%. The high-temperature storage performance and the cycle performance of the battery monomer can be further improved.

The invention relates to a battery monomer, a battery device and a power utilization device. The battery monomer comprises a positive pole piece and a negative pole piece, the positive pole piece comprises lithium-containing phosphate; the negative pole piece comprises graphite particles; the electrolyte comprises a carboxylic ester solvent, a linear carbonic ester solvent and an additive, the mass content of the carboxylic ester solvent is 10%-30%, and the mass content of the linear carbonic ester solvent is 10%-50%; the mass content of the additive is 3%-9%, the additive comprises 1, 3-propane sultone with the mass content larger than or equal to 0, an ethylene carbonate derivative with the mass content larger than or equal to 0 and vinylene carbonate with the mass content larger than 0, and the ethylene carbonate derivative comprises a compound shown in the formula A; q1, Q2, Q3 and Q4 each independently comprise any one of a hydrogen atom, a halogen atom, a C1 to C5 alkyl group or a C1 to C5 halogenated alkyl group, and Q1, Q2, Q3 and Q4 are not hydrogen atoms at the same time. # imgabs0 # formula A is shown in the specification.

The invention belongs to the technical field of polyester master batches, and particularly relates to a damp-heat-resistant ultraviolet barrier polyester master batch and a preparation method thereof. The invention discloses an anti-ultraviolet polyethylene glycol terephthalate composite material, which is prepared from the following raw materials in parts by weight: 85 to 90 parts of polyethylene glycol terephthalate, 10 to 15 parts of anti-ultraviolet agent, 3 to 5 parts of epoxy-terminated polyether and 1 to 3 parts of lubricant, wherein the anti-ultraviolet agent is a modified intermediate obtained by modifying a nano light screening agent by a carboxylic ester coupling agent according to a mass ratio of (3 to 5): 100; the modified intermediate and a hydroxybenzophenone derivative are subjected to a grafting reaction according to the mass ratio of 100: (5-8); the nano light screening agent is selected from one or a combination of two or more of nano zinc oxide, nano titanium dioxide, nano cerium oxide, nano tin antimony oxide and nano carbon black. The dispersion effect of the anti-ultraviolet agent in the master batch is improved, and the ultraviolet barrier and the light transmittance are improved; meanwhile, the anti-ultraviolet agent is subjected to ester exchange with PET in the screw extrusion process, so that the interaction with PET is enhanced, migration in a humid and hot environment is avoided, and the ultraviolet shielding performance is lasting and stable.

The invention discloses a lead-free phosphorus chemical nickel plating solution, and relates to the field of chemical nickel plating, and the lead-free phosphorus chemical nickel plating solution comprises the following components: 6-10 g / L of nickel salt, 5-10 g / L of a complexing agent, 1-5 g / L of a brightener, 5-12 g / L of a reducing agent, 0.6-0.9 g / L of a composite stabilizer, 2-10 g / L of a plating starting agent, 0.1-0.6 g / L of a hydrogen evolution preventing agent and 30-60 mg / L of a surfactant. The adopted plating starting agent is high in decomposition capacity, after the service cycle is increased to 4 MTO, the problem that decomposition products are accumulatively increased to a certain degree to cause blackening of a plating layer can be relieved, 5-6 MTO can be achieved, meanwhile, the adopted composite stabilizer is a composition composed of an aminopyrrole carboxylic ester compound and an aminothiazole carboxylic ester compound, and the composite stabilizer has the beneficial effects of being environmentally friendly and free of pollution. The stability of traditional elements such as lead and cadmium can be improved, and the problem that the service cycle of stabilizers such as benzotriazole or sodium thiosulfate is short can be solved.

A secondary battery and an electrical device. In the secondary battery, a positive electrode sheet comprises a positive electrode active material, and a negative electrode sheet comprises a negative electrode active material, the Dv99 of the positive electrode active material being 27μm to 33μm, and the Dv99 of the negative electrode active material being 23μm to 28μm. A separator comprises a separator base material, a first bonding coating and a second bonding coating, the first bonding coating and the second bonding coating being arranged on two sides of the separator base material respectively. The first bonding coating comprises a first polymer binder, the average particle size of the first polymer binder being 0.3μm to 3μm. The second bonding coating comprises a second polymer binder, the average particle size of the second polymer binder being 10μm to 38μm. An electrolyte comprises an organic solvent, a lithium salt and an additive, wherein the organic solvent comprises a chain carboxylic ester, and, on the basis of the mass of the electrolyte, the mass percentage content of the chain carboxylic ester is 6% to 56%. The secondary battery has good cycle dynamic performance and high-temperature stability.

The invention provides a battery monomer, a battery device and electric equipment, the battery monomer comprises a shell, an electrode assembly and an electrolyte, the electrode assembly comprises a positive pole piece, a negative pole piece and an isolating membrane located between the positive pole piece and the negative pole piece, the positive pole piece comprises a positive current collector and a positive membrane layer, and the negative pole piece comprises a negative current collector and a negative membrane layer. The positive electrode current collector comprises a positive electrode main body part and a positive electrode tab part, the positive electrode tab part extends out of the positive electrode main body part, the positive electrode film layer is located on at least one side of the positive electrode main body part, and the size of the positive electrode film layer is 200-700 mm along the direction in which the positive electrode tab part extends out of the positive electrode main body part; the electrolyte comprises chain carboxylic ester, and based on the total mass of the electrolyte, the mass ratio of the chain carboxylic ester is 5%-50%.

A method for the preparation of carboxylic acid esters by iron-catalyzed oxidation esterification of alcohols. The present invention discloses a method for directly oxidizing and esterifying alcohols to prepare carboxylic acid ester compounds with oxygen or air as the oxidant under iron catalysis. The method is carried out at 25 °C - 60 °C in an organic solvent, using iron nitrate (Fe(NO3)3·9H2O), nitrogen oxides and Lewis acid as catalysts, and oxygen or air as the oxidant, and the alcohol is directly oxidized and esterified to form carboxylic acid ester compounds. The present invention has many advantages such as simple operation, cheap and easily available catalysts and raw materials, mild reaction conditions, excellent yield, good compatibility of substrate functional groups, scalable reaction scale, environmentally friendly reaction process and no pollution, and has the prospect of industrial application.

Disclosed are biodegradable polyesters. Methods for their production and adhesives prepared therefrom. The polyesters comprise a plurality of adducts of two dicarboxylates or anhydrides with a compound having at least two fused ring heterocycles containing a heteroatom and a hydroxyl group pendant from each ring, the adducts are linked by the residues of one or more diols of alkylene diols or polyoxyalkylene diols and a plurality of one or more aliphatic diols containing a pendant carboxylate group. Ester groups are formed by reaction of the hydroxyl groups of the fused ring compounds and the diols with the carboxylate groups of the dicarboxylates and the composition contains pendant carboxylate groups, wherein the composition contains two dicarboxylates, a first dicarboxylate or an anhydride containing between the carboxylate or carboxyl groups a C1-8 hydrocarbylene group and a second dicarboxylate containing between the carboxylate groups a C9-60 hydrocarbylene group.

The invention relates to a lithium ion battery. In order to solve the problem that the performance of the battery is influenced by solvent decomposition and gas production due to the fact that active oxygen is released in the using process when a lithium supplementing agent is added, a solvent ethylene carbonate in an electrolyte is promoted to be subjected to a ring-opening reaction, and the lithium ion battery comprises a positive electrode, a negative electrode, a diaphragm and the electrolyte, the positive electrode comprises a positive electrode active material and a lithium supplement agent, the electrolyte comprises an organic solvent, a lithium salt and an additive, the organic solvent comprises fluoro carboxylic ester, fluoro ether and carbonic ester and does not contain ethylene carbonate, and the additive comprises trimethylsiloxyethyl isocyanate and / or 2-(1, 1-thiophane-3-dioxide)-2, 2-methyl difluoroacetate. Through the synergistic effect of the solvent system and the additive, the stability of the electrolyte in a battery containing a lithium supplement agent is improved, the wettability and low-temperature performance of the battery, especially a high-compaction battery, are improved, and meanwhile, the lithium ion battery has relatively good normal-temperature cycle performance and high-temperature performance.

Described herein are pharmaceutical formulations of a farnesoid X receptor agonist, 4-((4-(1-(tert-butyl)-1H-pyrazol-4-yl)pyridin-2-yl)((4-(4-methoxy-3-methylphenyl)bicyclo[2.2.2]octan-1-yl)methyl)carbamoyl)cyclohexyl 3-hydroxyazetidine-trans-1-carboxylate, and methods of using such pharmaceutical formulations in the treatment of conditions, diseases, or disorders associated with farnesoid X receptor activity.

The invention discloses a fast charging electrolyte and a lithium ion battery. The fast charging electrolyte comprises an organic solvent, a lithium salt and an additive, wherein the organic solvent is composed of at least one carboxylic ester solvent and at least one carbonic ester solvent; the electrolyte additive comprises a first additive and a conventional film-forming additive; the first additive is a phthalylhydrazine compound with a structure as shown in a formula I. A phthalylhydrazine compound (An) is adopted as an additive of the electrolyte, the LUMO value of the phthalylhydrazine compound (An) is lower than that of a conventional negative electrode film-forming additive, a dense and stable SEI film component AnLi of an organic structure can be preferentially formed on a negative electrode, and the AnLi can rapidly migrate Li < + >, reduce DCR and improve the low-temperature charging capacity, the rapid charging performance and the cycle index of the battery; meanwhile, the HOMO value is higher, and a CEI film can be formed on a positive electrode to protect the positive electrode, so that the high-temperature performance is improved.

The invention provides a battery monomer, a battery device and a power utilization device. Each battery monomer comprises a positive pole piece, a negative pole piece and an electrolyte; the electrolyte comprises a solvent, the solvent comprises a chain carboxylic ester solvent, and the conductivity of the electrolyte is 13 mS / cm to 20 mS / cm; the negative electrode piece comprises a negative electrode current collector and a negative electrode film layer arranged on at least one side of the negative electrode current collector, the negative electrode film layer comprises a negative electrode material, and the X-ray photoelectron spectroscopy (XPS) of the negative electrode material has a phosphorus element 2p characteristic peak with binding energy of 132eV-138eV.