简介:在氧气气氛下,以乙酸盐为原料,以柠檬酸为螯合剂,用溶胶凝胶法制备出了锂离子电池正极材料LiNi0.8Co0.2O2:。研究了不同合成温度和Li/(Ni+Co)配比对材料的结构和电化学性能的影响。XRD检测结果表明:合成温度为750%、合成时间为18h、Li/(Ni+Co):1.10的正极材料LiNi0.8Co0.2O2具有完整的晶型结构;充放电性能测试结果表明,该材料在0.5C下,首次充放电容量分别为230.0mAh/g和192.6mAh/g,首次充放电效率为83.73%,经过50次循环仍有170.5mAh/g,容量保持率为90.87%。
简介:2004年12月以来,中国科学院电工研究所自主研发的75m长10kV三相交流高温超导电缆、10kV三相交流高温超导限流器和10kV三相交流高温超导变压器已先后在甘肃省白银市、湖南省娄底市和新疆昌吉市投入并网试验运行。
简介:Astudyonthefixed-concentratedhybridpanelusingreflector,ABSORBERTHICKNESSDEPENDENCEONCulnSe{sub}2BASEDSOLARCELLSPERFORMANCEUSINGCulnPRECURSORSSELENIZEDUSINGH{sub}2SeGAS,ACEDESIGNS:THEBEAUTYOFREARCONTACTSOLARCELLS,ActivatedCarbonCounterElectrodeforDye-sensitizedSolarCell,ADVANCEDSOLARCELLCONCEPTSFOR2020ANDBEYOND,ADVANCEMENTSINGalnP{sub}2/GaAs/GeSOLARCELLS-PRODUCTIONSTATUS,QUALIFICATIONRESULTSANDOPERATIONALBENEFITS,ADVANCESINHIGHTHROUGHPUTWAFERANDSOLARCELLTECHNOLOGYFOREFGRIBBON。
简介:""THEPERFORMANCEANDMODELLINGOF8PHOTOVOLTAICMATERIALSUNDERVARIABLELIGHTINTENSITYANDSPECTRA"";ACHARACTERISTICSSTUDYOFACdS:CuPHOTOCONDUCTIVEDETECTOR;ALUMINOUSCHARACTERISTICOFTHESOLARENERGYCELLWITHPHOSPHORESCENTSYSTEM;AMETHODFORINDUSTRIALCHARACTERISATIONOFCRYSTALLINESILICONWAFERS;AnewapproachbasedontheMSEOmodeltodeterminetherefractiveindexofmultiplequantumwells,withthepresenceofanelectricfieldperpendiculartothewelllayersasanaidtoQWSCdesign;ANEWAPPROACHOFGRAINBOUNDARYRECOMBINATIONINPOLYCRYSTALLINESILICON;ANEWSTATICCONCENTRATORPVMODULEWITHBIFACIALCELLSFORINTEGRATIONONFACADES:THEPVVENETIANSTORE.
简介:ANEWTHIN-FILMCuGaSe{sub}2/Cu(In,Ga)Se{sub}2BIFACIAL,TANDEMSOLARCELLWITHBOTHJUNCTIONSFORMEDSIMULTANEOUSLY,Anovelsimulationmethodforstand-alonePVgenerationsystems,Apowersupplyoflightsourcesforexperinaentalphotovoltaicsystems,Asimpleall-logicMPPTsystemforsolarcellbatterycharger