共搜索到2556条信息，每页显示10条信息，共256页。用时：0小时0分0秒569毫秒
Article ID: 1003-6326(2005)06-1429-04 Effect of ball milling and electrolyte on properties of high-voltage LiNi<sub>0.5</sub>Mn<sub>1.5</sub>O4 spinel FANG Hai... 410083, China; 2. School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China) Abstract: Effect of ball milling and electrolyte on the properties of high-voltage......
powders to germanium is 5:1, the sample electrode shows a reversible discharge capacity of 350.3 mA·h/g and a high capacity retention rate of 95.9% after 50 cycles. The results of cyclic voltammmetry (CV... cycling [5-8]. The negative materials of Ni/Co alkaline rechargeable batteries could be composed of Co powders, Co-based alloys or cobalt oxides [9-12]. The Co powders had a high discharge capacity. ZHAO et......
链状纳米碳酸钙合成 陈建定1,陈雪梅1,秦勇利1,吴秋芳1,李福清1 (1.华东理工大学国家超细粉末工程研究中心,上海,200237) 摘要:采用以CaO和CO2为原料的碳化法,在晶形控制剂--柠檬酸盐存在的条件下,制备出纳米链状碳酸钙,链直径约10nm,长径比大,粒径分布均匀,分散性好.同时利用TEM和XRD分析手段研究了反应温度,晶形控制剂量,搅拌转速等对纳米链状碳酸钙形貌和分散性的影响. 关键词:纳米碳酸钙; 链状; 合成; 晶形控制剂; [全文内容正在添加中] ......
单质链状钴的制备及电磁性能张涛1,2,尹亮3,韩喜江2,丁海铭11. 黑龙江省计量检定测试院2. 哈尔滨工业大学理学院3. 安徽省计量科学研究院摘 要:为了研究表面形貌对钴电磁性能的影响,本文通过改变表面活性剂十六烷基三甲基溴化铵(CTAB)的浓度可以制备得到单质链状钴.试验结果表明:其微波吸收主要来自磁损耗.当钴粉末厚度为2 mm时,其吸波曲线在11.88 GHz达到最大吸收-14 dB.关键词:制备;链状;钴;CTAB;微波吸收;......
additive in electrolyte, the increase of charge transfer resistance is restrained and the electrochemical properties under high voltage operation are improved significantly. Key words: lithium-ion...; 文献标志码:A 文章编号:1672-7207(2015)06-1999-08 Application of 2-Thiophenecarbonitrile on high-voltage lithium-ion batteries QI Ai......
2-(Trifluoroacetyl) thiophene as an electrolyte additive for high-voltage lithium-ion batteries using LiCoO2cathodeYi Sun1,Jian Huang1,Hongfa Xiang1,Xin Liang1,Yuezhan Feng2,Yan Yu31. School... density.Application of suitable electrolyte additives is a facile and effective way to achieve enhanced electrochemical perfo rmance at high voltage operation.In this work,2-(tri fluoroacetyl)thiophene......
Laboratory, Institute of Regional Innovation (IRI), Hirosaki University摘 要:Electrolyte formulation with high stability towards both Li metal anode and high-voltage cathode is considered as one of key points for the high-energy density lithium metal batteries(LMBs). In our previous study, by adding only 2% of 2-fluoropyridine(2-FP) as the additive......
链状纳米碳酸钙的合成与影响因素探讨 陈雪梅1,秦勇利1,於定华1,吴秋芳1 (1.华东理工大学,材料学院,国家超细粉末工程研究中心,上海,200237) 摘要:研究了碳化法制备链状纳米碳酸钙的工艺,通过加入晶形控制剂,在夹套反应釜中制备出短径20nm左右,长径比大于15,粒径分布均匀,分散性良好的链状纳米碳酸钙.初步探讨了晶形控制剂在链状纳米碳酸钙形成过程中所起到的作用. 关键词:链状纳米碳酸钙; 纳米材料; 晶形控制剂; [全文内容正在添加中] ......
磁场诱导和晶种联合法制备链状Fe3O4杨喜云,于培峰中南大学冶金科学与工程学院摘 要:以粒径为700nm的球形Fe3O4为晶种,将晶种加入到含有FeSO4.7H2O,FeCl3.6H2O与尿素的混合溶液中,在磁场诱导下制备链状Fe3O4.研究了磁场强度,晶种添加量,分散剂聚乙烯吡咯烷酮(PVP)质量浓度以及反应时间对产品形貌的影响.研究结果表明,随着磁场强度的增大,晶种量的增加,链状粒子数目显著增多;适量的PVP能使链状粒子分散平行排列.合成链状Fe3O4粒子的最佳工艺条件为磁场强度0.35T,晶种用量10......
be seen from Table 1 that the removal rates of Sb and Bi in electrolyte are as high as 53.85% and 53.33% respectively when the concentrations of As(Ⅲ) and AsT are up to 7.04 and 11.12 g/L. The total... are as high as 53.85% and 53.33% respectively when copper arsenite concentration is 20 g/L. In contrast to other methods, the purification of copper electrolyte with copper arsenite has the advantages of simple......
