如何实现乙醇/氦气的混合气，因为乙醇为液体，需要单独给乙醇加热形成蒸汽吗?如题Some article says ethanol adsorption was carried out for 30 min using a 2.0% ethanol/He gas mixture (1.0 mL/s), as we know, ethanol is liquid, how to realize the gas mixture of ethanol and helium, and guarantee the volume fraction of 2%.Is the gas mixture in the cylinder together or??with the help of flowmeter?many thanks for help.查看更多2个回答 . 10人已关注
斯坦福大学崔毅再发牛文：半液态锂硫电池？此技术已经被MIT Technology Review网站高调报导http://www.technologyreview.com/ ... -store-solar-power/AbstractLarge-scale energy storage represents a key challenge for renewable energy and new systems with low cost, high energy density and long cycle life are desired. In this article, we develop a new lithium/polysulfide (Li/PS) semi-liquid battery for large-scale energy storage, with lithium polysulfide (Li2S8) in ether solvent as a catholyte and metallic lithium as an anode. Unlike previous work on Li/S batteries with discharge products such as solid state Li2S2 and Li2S, the catholyte is designed to cycle only in the range between sulfur and Li2S4. Consequently all detrimental effects due to the formation and volume expansion of solid Li2S2/Li2S are avoided. This novel strategy results in excellent cycle life and compatibility with flow battery design. The proof-of-concept Li/PS battery could reach a high energy density of 170 W h kg?1 and 190 W h L?1 for large scale storage at the solubility limit, while keeping the advantages of hybrid flow batteries. We demonstrated that, with a 5 M Li2S8 catholyte, energy densities of 97 W h kg?1 and 108 W h L?1 can be achieved. As the lithium surface is well passivated by LiNO3 additive in ether solvent, internal shuttle effect is largely eliminated and thus excellent performance over 2000 cycles is achieved with a constant capacity of 200 mA h g?1. This new system can operate without the expensive ion-selective membrane, and it is attractive for large-scale energy storage.GA.gifflow.batteryx299.jpg查看更多0个回答 . 15人已关注
第1天
关注盖德视界
添加小助手
