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58results about How to "Increase compatibility" patented technology

Non-aqueous electrolyte for lithium iron phosphate battery

The invention discloses a non-aqueous electrolyte for a lithium iron phosphate battery. The non-aqueous electrolyte comprises 70 to 85 weight percent of carbonic ester compound, 3 to 20 weight percent of various function additives and 11 to 17 weight percent of lithium hexafluorophosphate, wherein the carbonic ester compound is one of ethylene carbonate, propylene carbonate, butylene carbonate, dimethyl carbonate and diethyl carbonate or a mixture of more of the ethylene carbonate, the propylene carbonate, the butylene carbonate, the dimethyl carbonate and the diethyl carbonate; and the additives comprise one of 0.5 to 10 percent of film-forming additive, 0.5 to 10 percent of high-temperature additive, 0.5 to 10 percent of low-temperature additive, 0.5 to 10 percent of overcharge-preventing additive and 0.001 to 2 percent of stability additive, and a mixture of more of the additives. The non-aqueous electrolyte for the lithium iron phosphate battery has the advantages that the solubility and dissociation of the lithium hexafluorophosphate are improved, and electric conductivity is improved; the low temperature resistance of a solid electrolyte interphase (SEI) is reduced; the overall stability of the battery is improved, the overall service life of the battery is prolonged, the compatibility of an electrolyte and a cathode is improved, circulation of the battery is improved, and the service life is prolonged; and the non-aqueous electrolyte can have high performance at high temperature.
Owner:广东金光高科股份有限公司

Disposable Medical Supplies From Hydrolytically Biodegradable Plastics

Hydrolytically degradable polymers in the form of biodegradable disposable medical devices for use in medicine and laboratories such as syringes, test tubes, catheters, tubing, trays, medical fabrics, and gloves are described. The devices are formed in whole or in part of a hydrolytically degradable polymer. In the preferred embodiment, the devices or structural components thereof degrade in a period of weeks to months, preferably within a year and more preferably within six months of exposure to aqueous solutions. Conventional hydrolytically degradable polymers may be utilized or these may be modified to increase mechanical or processing characteristics, for example, using a polyfunctional branching agent and/or a chain extending agent. In one embodiment, the hydrolytically degradable polymer is a member of a new class of polyesters comprising an aliphatic dicarboxylic acid, an aliphatic diol and optionally, one or more bifunctional fatty acids such as ricinoleic acid and/or castor oil. The devices are prepared using standard techniques, such as by injection molding, extrusion or melt spinning. The devices can be formed entirely of the degradable polymer, or they can be coated with a polymer coating in order to increase the compatibility of and reduce the possibility for interaction between the surface of the device and liquids that may come in contact with the device, or they may include core or other internal structural member formed of either the biodegradable or non-biodegradable material.
Owner:MASSACHUSETTS INST OF TECH

High-temperature-resistant high-molecular conductive composite material

The invention belongs to the technical field of high molecular material, and especially relates to a high-temperature-resistant high-molecular conductive composite material. The high-temperature-resistant high-molecular conductive composite material is composed of, by weight, 40 to 55 parts of a high-molecular polymer base material, 15 to 20 parts of a conductive filler, 5 to 8 parts of an inorganic filler, 1 to 2 parts of a flame retardant, and 0.5 to 0.8 part of a dispersant. The method comprises the following steps: the high-molecular polymer base material, the conductive filler, the inorganic filler, the flame retardant and the dispersant are weighed at the formula ratio, and are mixed to be uniform so as to obtain a premixed raw material; melt blending and extruding are carried out soas to obtain the high-temperature-resistant high-molecular conductive composite material. According to a preparation method, the high-molecular polymer base material and the conductive filler are taken as main raw materials, and the flame retardant and the dispersant are added to provide the high-temperature-resistant high-molecular conductive composite material with high temperature resistance characteristic, and the compatibility degree of the various raw materials is increased; the adopted materials are nanometer grade particles, so that the conductivity is increased to a high degree, it is convenient for using, and the service life of the high-temperature-resistant high-molecular conductive composite material is prolonged.
Owner:安徽律正科技信息服务有限公司

Hypervolume stable lithium battery and preparation method thereof

The invention discloses a hypervolume stable lithium battery, the hypervolume stable lithium battery comprises a positive electrode, a negative electrode, a composite membrane and a nonaqueous electrolyte; the nonaqueous electrolyte comprises a lithium salt, a room temperature ionic liquid electrolyte and a composite additive, wherein the room temperature ionic liquid electrolyte comprises a quaternary ammonium salt cationic liquid and a cosolvent at the mass ratio of 1:(0.1-0.5); and the composite membrane comprises a multi-arc hole fiber based membrane and an inorganic nanometer coating on the surface of the multi-arc hole fiber based membrane. Compared with the prior art, in the provided hypervolume stable lithium battery and a preparation method of the hypervolume stable lithium battery, the nonaqueous electrolyte uses an ionic liquid to replace the traditional organic solvent, the range of the working temperature of the battery is expanded, the stability on the metal lithium is good, the safety of the battery at the high-power density is further improved, the potential safety hazard of the battery is eliminated; the composite membrane guarantees the better mechanical propertyand the electric conductivity of the composite membrane, and meanwhile, the thermal stability of the membrane is improved. Therefore, the hypervolume stable lithium battery is higher in ionic conductivity and excellent in thermal stability, chemical stability and electrochemical stability.
Owner:江苏微能电子科技有限公司

Non-aqueous electrolyte for lithium iron phosphate battery

The invention discloses a non-aqueous electrolyte for a lithium iron phosphate battery. The non-aqueous electrolyte comprises 70 to 85 weight percent of carbonic ester compound, 3 to 20 weight percent of various function additives and 11 to 17 weight percent of lithium hexafluorophosphate, wherein the carbonic ester compound is one of ethylene carbonate, propylene carbonate, butylene carbonate, dimethyl carbonate and diethyl carbonate or a mixture of more of the ethylene carbonate, the propylene carbonate, the butylene carbonate, the dimethyl carbonate and the diethyl carbonate; and the additives comprise one of 0.5 to 10 percent of film-forming additive, 0.5 to 10 percent of high-temperature additive, 0.5 to 10 percent of low-temperature additive, 0.5 to 10 percent of overcharge-preventing additive and 0.001 to 2 percent of stability additive, and a mixture of more of the additives. The non-aqueous electrolyte for the lithium iron phosphate battery has the advantages that the solubility and dissociation of the lithium hexafluorophosphate are improved, and electric conductivity is improved; the low temperature resistance of a solid electrolyte interphase (SEI) is reduced; the overall stability of the battery is improved, the overall service life of the battery is prolonged, the compatibility of an electrolyte and a cathode is improved, circulation of the battery is improved, and the service life is prolonged; and the non-aqueous electrolyte can have high performance at high temperature.
Owner:广东金光高科股份有限公司

Baby stroller adopting electric automatic folding

The invention discloses a baby stroller adopting electric automatic folding. The baby stroller comprises an electric stroller frame and a baby seat arranged above the electric stroller frame, and thebaby seat and the electric stroller frame are fixed; the electric stroller frame comprises a stroller frame main body, rear wheels arranged on one side of the lower portion of the stroller frame mainbody, front wheels arranged on the other side of the lower portion of the stroller frame main body, an electric pushing rod arranged above the stroller frame main body, a fixing seat arranged at the upper end of the electric pushing rod and a main rod arranged above the electric pushing rod and connected with the electric pushing rod, wherein the fixing seat and the electric pushing rod are fixed;and the baby seat comprises a seat body, screws arranged on both sides of the seat body and used for being connected with the fixing seat and a canopy arranged at the upper end of the seat body and used for sunshading. By combining the electric stroller frame and the baby seat to form the baby stroller capable of being folded electrically and automatically, using through folding can be convenientfor a user, and the baby stroller adopting electric automatic folding has the advantages of being safe, reliable, convenient to use and quick in automatic folding.
Owner:浙江多宝贝科技有限公司

Transparent anti-impact hard PVC particle composition and preparation method thereof

ActiveCN106867130AImprove the degree of gelationAchieve uniformityPlasticizerPolyvinyl chloride
The invention discloses a transparent anti-impact hard PVC particle composition and a preparation method thereof. The transparent impact-resistant hard PVC particle composition is characterized in that vinyl chloride-vinyl acetate-butyl acrylate ternary copolymerized resin is used as a bridging agent and cooperates with other modifiers, then mixed granulation is performed to obtain the transparent anti-impact hard PVC particle composition; the composition comprises the following components in parts by weight with each 100 parts by weight of PVC as the benchmark: 100 parts of polyvinyl chloride, 8-15 parts of an anti-impact modifier, 0-4 parts of a bridging agent, 1-3 parts of a heat stabilizer, 2-3 parts of a plasticizer, 0.3-0.8 part of a lubricant, and 0.1-0.3 part of a color toner. By selection of the particle size of anti-impact modifier colloidal particles and introduction of the vinyl chloride-vinyl acetate-butyl acrylate ternary copolymerized resin as the bridging agent, the transparent anti-impact rigid PVC particle formula is improved, the purpose of improving the impact resistance and transparency of the material is finally reached, and the requirements of high-quality transparent anti-impact hard PVC products on high transparency and high impact resistance are met.
Owner:XINJIANG CORPS MODERN GREEN CHLOR ALKALI CHEM ENG RES CENT LTD
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