摘要:
The present invention provides a novel hybrid polymer electrolyte, a lithium secondary battery comprising the hybrid polymer electrolyte polymer and their fabrication methods. More particularly, the present invention provides the hybrid polymer electrolyte comprising superfine fibrous porous polymer matrix with particles having diameter of 1-3000 nm, polymers and lithium salt-dissolved organic electrolyte solutions incorporated into the porous polymer matrix. The hybrid polymer electrolyte has advantages of better adhesion with electrodes, good mechanical strength, better performance at low and high temperatures, better compatibility with organic electrolytes of a lithium secondary battery and it can be applied to the manufacture of lithium secondary batteries.
摘要:
A refrigerator and a method of controlling the same. The refrigerator includes: tags attached to goods stored in a storage chamber; a reader, including a plurality of antennas having different identification distances, identifying the tags using the antennas; and a control unit detecting locations of the tags attached to goods stored in the storage chamber using the different identification distances of the antennas.
摘要:
A novel refrigerant composition useful as a substitute for HCFC-22, comprising a first constituent of difluoromethane (CH2F2, HFC-32); a second constituent of pentafluoroethane (CHF2CF3, HFC-125); a third constituent of 1,1,1-trifluoroethane (CH3CF3, HFC-143a); a fourth constituent selected from the group consisting of cyclopropane (C3H6, RC-270), 1,1,1,2,3,3,3-heptafluoropropane (CF3CHFCF3, HFC-227ea), 1,1,1,2,2-pentafluoropropane (CH3CF2CF3, HFC-245cb), isobutane (CH(CH3)2CH3, R-600a), octafluorocyclobutane (C4F8, RC-318), 1,1,1,2,3,3-hexafluoropropane (CHF2CHFCF3, HFC-236ea), butane (C4H10, R-600), bis(difluoromethyl)ether (CHF2OCHF2, HFE-134) and pentafluoroethylmethylether (CF3CF2OCH3, HFE-245).
摘要:
A refrigerant composition useful as a substitute for chlorodifluoromethane (CHCIF2, HCFC-22). The refrigerant mixture has a first constituent of difluoromethane (CH2F2, HFC-32); a second constituent selected from perfluoropropane (C3F8, PFC-218), cyclopropane (C3H6, RC-270) and butane (C4H10, R-600); and a third constituent selected from 1,1-difluoroethane (CH3CHF2, HFC-152a), 1,1,1,2,2-pentafluoropropane (CH3CF2CF3, HFC-245cb) and bis(difluoromethyl)ether (CHF2OCHF2, HFE-134).
摘要翻译:用作氯代二氟甲烷(CHCIF2,HCFC-22)的替代物的制冷剂组合物。 制冷剂混合物具有二氟甲烷的第一组分(CH 2 F 2,HFC-32); 选自全氟丙烷(C3F8,PFC-218),环丙烷(C3H6,RC-270)和丁烷(C4H10,R-600)的第二种成分; 和选自1,1-二氟乙烷(CH 3 CHF 2,HFC-152a),1,1,1,2,2-五氟丙烷(CH 3 CF 2 CF 3,HFC-245cb)和双(二氟甲基)醚(CHF 2 OCH 2,HFE-134) 。
摘要:
A method for concurrently producing different hydrofluoro carbons, comprising the reaction of halocarbon or hydrohalocarbon with hydrogen fluoride in a reaction system consisting of a series of at least two discrete reactors, in the presence of catalysts, said reactors each being provided with different reactant materials and differing in reaction conditions including the catalysts and/or reaction temperature, thereby flexibly controlling their production rates in accordance with fluctuations in their demand, and eliminating the risk of constructing large scale plants responsible for individual hydrofluorocarbons.
摘要:
An icemaker in a refrigerator is disclosed, by which heat generated from a heater to detach ice is prevented from being transferred to an inside of the refrigerator. The present invention includes an icemaker body provided to a prescribed position of the refrigerator to make to ice from a supplied water, a heater provided to the icemaker body to generate heat to facilitate detachment of the made ice, and a heater shielding unit provided to prevent the heat generated from the heater from being supplied to an inside of the refrigerator.
摘要:
The present invention provides a lithium secondary battery and its fabrication method. More particularly, the present invention provides a lithium secondary battery comprising a super fine fibrous porous polymer separator film and its fabrication method, wherein the porous polymer separator film is fabricated by the following process: a) melting at least one polymer or dissolving at least one polymer with organic solvents to obtain at least one polymeric melt or at least one polymeric solution; b) adding the obtained polymeric melt or polymeric solution to barrels of an electrospinning machine; and c) discharging the polymeric melt or polymeric solution onto a substrate using a nozzle to form a porous separator film. The lithium secondary battery of the present invention has the advantages of better adhesion with electrodes, good mechanical strength, better performance at low and high temperatures, better compatibility with organic electrolyte solution of a lithium secondary battery.
摘要:
A refrigerator having improved recognition rate of RFID tags. Antennas of RFID readers are slantingly installed in walls of storage chambers, thereby increasing the recognition rate of the RFID tags attached to foods stored in the storage chambers.
摘要:
The present invention relates to a method for preparing alkylene carbonate by reacting alkylene oxide with carbon dioxide in the presence of a catalyst system comprising:a) at least one selected from the group consisting of PbY.sub.2, InY.sub.3 and their mixture, wherein Y is Cl, Br or I; andb) at least one alkali metal halide selected from the group consisting of MCl, MBr and MI, wherein M is alkali metal.
摘要:
A process for producing chlorine by reaction of gaseous hydrogen chloride with oxygen in the presence of a catalyst prepared by reaction of chromium trioxide and cerous chloride with ethanol and calcination of the resulting reaction product, or, alternatively, prepared by reaction of chromium trioxide with ethanol, and calcination and impregnation of the resulting chromic oxide with aqueous solution of cerous chloride.