共查询到20条相似文献,搜索用时 92 毫秒
1.
分析了有机电解液在锂离子电池中的作用以及锂离子电池对有机电解液的要求,介绍了有机电解液的制备方法以及制备过程中的控制技术,根据锂离子电池的发展方向,提出了提高有机电解液质量及应用性能的途径。 相似文献
2.
3.
电解液锂盐是锂离子电池的最重要组成部分之一。对现有锂盐进行修饰和合成具有特定性质的新型锂盐是提高锂离子电池性能的有效手段。文章就目前国内外锂离子电池电解液有机锂盐的研究进展进行了综述。在总结这些锂盐开发研究工作共同点的基础上,提出了锂盐的发展方向及其开发思路。 相似文献
4.
5.
6.
7.
发明了一种能在宽广的阴极电流密度范围内获得光亮SnCu合金镀层的电解液,该电解液为无氰化物的水溶液。电解液中含有亚锡盐、铜盐、有机磺酸、分散剂和光亮剂。亚锡盐为有机磺酸盐、铜盐也采用有机磺酸盐,分散剂至少由下列两种化合物组成:聚氧乙烯烷基酚基醚、聚氧乙烯烷基醚和烯基乙二醇烷基醚。光亮剂可由下列化合物中选择:脂肪或芳香醛、脂肪或芳香酮、脂肪族羧酸或其混合物。 相似文献
8.
9.
电镀锡合金两则 2 0 0 32 0 1 电镀光亮锡 -铜合金电解液提出了一种电镀光亮 Sn- Cu合金电解液。该电解液能在宽广的电流密度范围内形成光亮的锡 -铜合金镀层。镀液中含有一种有机磺酸、二价锡和二价铜的有机磺酸盐 ,一种分散剂和一种光亮剂。(欧洲专利 ) EP1 1 1 1 0 97A1 ( 2 0 0 1 - 0 6- 2 7) 2 0 0 32 0 2 电沉积金 -锡合金发明了一种相当稳定的弱酸性无氰电沉积 Au-Sn合金电解液。该电解液含有金和锡的氯化物作主盐 ;柠檬酸铵为缓冲剂 ;左旋抗坏血酸做稳定剂 ;此外还含有亚硫酸钠。实验结果表明 ,采用该电解液可以获得一系列组成… 相似文献
10.
11.
超级电容器电解质研究进展 总被引:1,自引:0,他引:1
简述了近年来国内外超级电容器各种电解质,包括水系、有机体系、离子液体、固态、氧化还原等电解质的最新研究进展以及重要的理论和技术突破,着重对离子液体、水溶液及有机电解质作为超级电容器电解质的性能进行了比较,并对杂质离子的穿梭效应引起的自放电进行了讨论。最后总结指出开发具有低黏度、高电导率和高电化学稳定性的离子液体电解质是将来超级电容器在基础领域中研究的重点,并有望成为有机电解液的替代者。此外离子液体与混合有机溶剂多种成分的优化组合也是电解质的发展趋势。 相似文献
12.
13.
Natalie Stingelin 《Polymer International》2012,61(6):866-873
The physical organisation, from the molecular to the macroscale, of functional organic matter such as polymer semiconductors can profoundly affect the properties and features of the resulting architectures and their consequent performance when used as active layers in organic optoelectronic devices, including organic thin‐film field‐effect transistors, organic light‐emitting diodes or organic photovoltaic cells. Here, we present a survey on the principles of structure development from the liquid phase of this interesting and broad class of materials with focus on how to manipulate their phase transformations and solid‐state order to tailor and manipulate the final ‘morphology’ towards technological and practical applications. Copyright © 2012 Society of Chemical Industry 相似文献
14.
15.
The supercritical antisolvent (SAS) process has been developed in recent years for the tormation of nanoand micro-particles. It is necessary to study the liquid phase volume expansion (LPVE) and find the relationships between the operating conditions and the LPVE in order to develop a practical method for determining the operation conditions and selecting an organic solvent for SAS process. The PR equation of state with vdW-1 mixing rule is used to calculate the LPVE for CO2/toluene, CO2/acetone and CO2/ethyl acetate systems, and the results show that the LPVE for each CO2/organic solvent system decreases as the temperature increases. The relationship between the LPVE and the solubility of CO2 in the liquid phase for CO2/organic solvent systems is investigated, and the results show that the LPVE is determined directly by the solubility of CO2 in the liquid phase, xCO2, and can be related to xCO2 independently. No matter what system of CO2/organic solvent is and how different the temperature is, the LPVEs have little difference as long as the solubility of CO2 in the liquid phase, xCO2, keeps constant. The lower temperature is always favorable to the SAS process. The higher the solubility of CO2 in an organic solvent under certain operation condition, the more suitable it is to the SAS process. 相似文献
16.
Ionic liquids are organic salts with melting points generally below 100 °C. They are attracting wide attention and are used as electrolytes in electrochemical devices, such as fuel cells, lithium‐ion batteries, dye‐sensitized solar cells, supercapacitors and light‐emitting electrochemical cells, due to their negligible vapor pressure, high ionic conductivity and wide electrochemical window. This perspective article highlights the applications of ionic liquid‐ or poly(ionic liquid)‐based electrolytes in fuel cells, dye‐sensitized solar cells and supercapacitors. © 2013 Society of Chemical Industry 相似文献
17.
脂肪酶是一种应用节广泛的重要生物催化剂,提高脂肪酶在非天然环境中的催化性能逐步成为了一个研究热点。研究表明,某些电解质的加入可显著提高提脂肪酶在有机溶剂体系中的酶活和选择性。然而有关研究主要考察单一电解质的作用,且涉及的电解质种类较少,更为系统的研究未见报道。本文以洋葱假单胞菌脂肪酶(Pseudomonas cepacia lipase,即PcL)催化手性菊酯农药前体4-甲基庚-4-烯基-1-炔基-3-醇(炔戊醇)在甲苯中选择性转酯化为模型,系统考察了卤化物、硝酸盐、硫酸盐、磷酸盐等8类35种电解质单独以及多种电解质协同对PcL催化性能的影响。结果表明,NaF-Na2HPO4/NaH2PO4的二元电解质体系具有远高于任意单一电解质组分的性能,该体系使PcL活力提高23倍。进一步研究表明,这一电解质体系对PcL催化不同对映体转酯化的活力提高程度不同,从而将其对映体选择率(E值)由11提高到21。 相似文献
18.
This review is concerned with alternatives to metallic lithium for use in rechargeable lithium batteries. Emphasis is placed on the use of various materials and combinations of materials in different types of electrodes rather than on the properties of the materials themselves. The review includes carbon based electrodes, alloys, conducting polymers and transition metal compounds. Special consideration is given to electrodes and materials used in organic liquid and polymer electrolytes, whereas liquid cathode and molten salt systems are excluded. 相似文献
19.