1 ONE ▎ 等离子激发晶粒聚合实现3D纳米结构的自组装 (👈点击阅读更多) Plasma Triggered Grain Coalescence for Self-Assembly of 3D Nanostructures Chunhui Dai, Daeha Joung, Jeong-Hyun Cho Nano-Micro Lett. (2017)9:27 https://doi.org/10.1007/s40820-017-0130-z ▲ TOC 明尼苏达大学Jeong-Hyun Cho教授 通过调控等离子体的功率和反应气体的流量，可以获得不同的刻蚀效率和图案，从而得到各种形貌的晶粒团聚体。 搭配好各向同性和各向异性衬底，可通过激发不同方向衬底上的二维纳米结构，利用晶粒聚合时产生的足够的表面张力，最终形成各种3D纳米结构。 2 TWO ▎ 综述：二维过渡金属硫化物在FET中的载流子迁移率 (👈点击阅读更多) Two-Dimensional Transition Metal Dichalcogenides and Their Charge Carrier Mobilities in Field-Effect Transistors Sohail Ahmed, Jiabao Yi Nano-Micro Lett. (2017) 9:50 https://doi.org/10.1007/s40820-017-0152-6 ▲ 二维材料系 悉尼大学Jiabao Yi 课题组详细总结了二维过渡金属硫化物（TMDC）材料制备方法、电子性能、以及TMDC电子器件的载流子迁移率研究进展。分析了TMDC电子器件兼顾高电子迁移率和高电流开关比所面临的难题。最后，列举出一系列提高TMDC器件载流子迁移率的方法并对该领域的发展前景作出展望。 3 THREE ▎ 三维Co-Al层状双氢氧化物：长期稳定性和高效性超级电容器纳米材料 (👈点击阅读更多) 3D Hierarchical Co–Al Layered Double Hydroxides with Long Term Stabilities and High Rate Performances in Supercapacitors Jiantao Zai, Yuanyuan Liu, Xuefeng Qian, et al. Nano-Micro Lett. (2017) 9:21 https://doi.org/10.1007/s40820-016-0121-5 ▲ TOC 上海交通大学宰建陶博士和钱雪峰教授 等人以水和丁醇作为混合溶剂，采用 水热法成功合成了由原子厚度纳米片组成的、具有三维花朵状结构的Co-Al-LDHs材料 。 其独特的层状结构以及丁醇改性，有效提高了Co-Al-LDHs的电化学稳定性和荷/质传输性能。用于超级电容器电极材料时表现出优异的电化学性能。 关于我们 Nano-Micro Letters是上海交通大学主办的英文学术期刊，主要报道纳米/微米尺度相关的最新高水平科研成果与评论文章及快讯，在Springer开放获取（open-access）出版。可免费获取全文，欢迎关注和投稿。 E-mail： editorial_office@nmletters.org Tel： 86-21-34207624
曹余良教授团队EER最新综述︱钠离子电池材料的最新发展 最新综述： 可持续能源系统需要成本低廉、电极性能好的电网规模的储能系统。由于钠资源的丰富性和低成本及其与较成熟的锂离子电池相似的电化学性质，钠离子电池（ SIBs ）有潜力成为电网规模的储能系统，吸引了极大的关注。在过去的十年中，尽管为了促进 SIBs 的发展，研究人员已经做出了巨大的努力，并且已经取得了显著的进展，但还有待改进，以实现 SIBs 在能量 / 功率密度和长循环稳定性方面的商业化。本文综述了 SIBs 电极材料的最新进展，包括各种有前景的正极和负极材料。此外，讨论了储钠机理，电化学性能、结构和成分优化，还有 SIBs 电极材料方面的挑战和前景。尽管还存在巨大的挑战，但我们相信，经过深入研究，成本低、寿命长的钠离子电池很快将有大规模的储能商业化应用。 Recent Advances in Sodium-Ion Battery Materials Abstract Grid-scale energy storage systems with low-cost and high-performance electrodes are needed to meet the requirements of sustainable energy systems. Due to the wide abundance and low cost of sodium resources and their similar electrochemistry to the established lithium-ion batteries, sodium-ion batteries (SIBs) have attracted considerable interest as ideal candidates for grid-scale energy storage systems. In the past decade, though tremendous efforts have been made to promote the development of SIBs, and significant advances have been achieved, further improvements are still required in terms of energy/power density and long cyclic stability for commercialization. In this review, the latest progress in electrode materials for SIBs, including a variety of promising cathodes and anodes, is briefly summarized. Besides, the sodium storage mechanisms, endeavors on electrochemical property enhancements, structural and compositional optimizations, challenges and perspectives of the electrode materials for SIBs are discussed. Though enormous challenges may lie ahead, we believe that through intensive research efforts, sodium-ion batteries with low operation cost and longevity will be commercialized for large-scale energy storage application in the near future. 文章信息 文章将发表于 EER 期刊 2018 年第 1 卷第 3 期，详情请点击阅读全文，可免费下载。 文章题目： Recent Advances in Sodium-Ion Battery Materials 引用信息： Fang, Y., Xiao, L., Chen, Z. et al. Electrochem. Energ. Rev. (2018). https://doi.org/10.1007/s41918-018-0008-x 关键词： 正极材料，负极材料，钠离子电池，储能 全文链接： https://link.springer.com/article/10.1007/s41918-018-0008-x/fulltext.html 扫描或长按二维码，识别后直达原文页面 Biographies of Authors YONGJIN FANG (FIRST AUTHOR) received Ph.D. degree (2016) in physical chemistry from Wuhan University. His recent research interests focus on novel electrode materials for sodium-ion batteries, energy storage mechanism and electrode characterizations. LIFEN XIAO received her Ph.D. in Physical Chemistry from Wuhan University in 2003. She is now a professor at Wuhan University of Technology. Her research is focused on novel electrode materials for electrochemical energy conversion and storage. ZHONGXUE CHEN received her Ph.D. in Physical Chemistry from Wuhan University in 2011. He now works at School of Power and Mechanical Engineering, Wuhan University. His research interest includes advanced materials for electrochemical energy conversion and storage. XINPING AI received her Ph.D. in Physical Chemistry from Wuhan University. He is a professor of Wuhan University. Her research interest mainly focuses on electrode materials for next-generation rechargeable batteries, such as lithium–sulfur batteries and Si anodes. YULIANG CAO (CORRESPONDING AUTHOR) received his Ph.D. (2003) in Wuhan University, and then he worked as a visiting scholar in Pacific Northwest National Laboratory from 2009 to 2011. He is now a professor at physical chemistry, Wuhan University. His research interests focus on developing advanced materials (e.g., alloy nanocomposite anodes, transition metal oxide cathodes, phosphate framework materials and novel electrolytes) for sodium-ion batteries. HANXI YANG received his M.Sc. degree (1981) in Wuhan University, and received his Ph.D. degree (1987) in University of Southampton, UK. He has been working in the field of energy storage technologies for a long time. He is interested in new materials, new technologies and new systems for energy storage. 杂志 杂志介绍 杂志介绍 Electrochemical Energy Reviews (《电化学能源评论》，简称EER)，该期刊旨在及时反映国际电化学能源转换与存储领域的最新科研成果和动态，促进国内、国际的学术交流，设有专题综述和一般综述栏目。EER是国际上第一本专注电化学能源的综述性期刊。EER覆盖化学能源转换与存储所有学科，包括燃料电池，锂电池，金属-空气电池，超级电容器，制氢-储氢，CO 2 转换等。 EER为季刊，每年3月、6月、9月以及12月出版。 创刊号在2018年3月正式出版。 欢迎关注和投稿 期刊执行严格的同行评议，提供英文润色、图片精修、封面图片设计等服务。出版周期3个月左右，高水平论文可加快出版。欢迎关注和投稿。 联系我们 Contact us E-mail: eer@oa.shu.edu.cn Website: http://www.springer.com/chemistry /electrochemistry/journal/41918 http://www.eer.shu.edu.cn Tel.: 86-21-66136010 长按二维码关注我们
近日，Bay State Wind与NEC Energy Solution公司（NECES）达成合作协议，将一起合作开发其位于马萨诸塞州的800MW/55MW~110MWh海上风电+储能互补项目。建成之后Bay state wind项目将会是世界上 第一个海上风电+储能 互补的商业运行项目，而马萨诸塞也将成为该项技术的发源地。 【项目介绍】 Bay state wind项目由Ørsted和Eversource共同开发，位于马萨诸塞州南海岸25英里外，玛莎葡萄园岛海岸15英里，海域面积至少可以满足2000MW装机容量，项目计划2020+实现发电，届时将会成为美国第一个大规模商业运行的海上风场。 在项目建设期间预计将为该地区创造1200多个工作职位，整个生命周期中会创造超过10,800个直接或间接的工作机会，并能给该地区风电发展带来成本效益以及技术创新。 该项目将采用NECES公司先进储能管理技术，作为大规模储能技术应用的领先者，NECES的技术专家们将为Bay state wind项目深入研究储能解决方案，以应对所在地区冬季供电可靠性的挑战，降低该地区冬季用电高峰价格，节约冬季用电费用。初步估计使用该技术后该地区冬季用电费用可以节约约1.58亿美元，此外储能技术的使用也可以降低电网潮流变化幅度、提高电网稳定性。 Bay State Wind项目将达成其对马萨诸塞州支持和促进储能应用的承诺，帮助马萨诸塞州成为全球绿色能源革命的 领导者 ，加强地区电网可靠性（降低可再生能源间歇性发电造成的不利影响），并为该地区可再生能源和储能行业创造更多的就业机会。 该项目同时可加快开发储能技术在电力系统应用的商业模式，积累利用存储技术在整合可再生能源、提高电网可靠性及运行效率、以及减少电力峰谷变化方面的优势经验，并将帮助 马萨诸塞南海岸成为美国以及全世界第一个大规模海上风电和大容量储能互补技术的发源地 。 来源 ：微信群： 欧洲海上风电
MIT researchers have found a way to improve the energy density of a type of battery known as lithium-air (or lithium-oxygen) batteries, producing a device that could potentially pack several times more energy per pound than the lithium-ion batteries that now dominate the market for rechargeable devices in everything from cellphones to cars. The work is a continuation of a project that last year demonstrated improved efficiency in lithium-air batteries through the use of noble-metal-based catalysts. In principle, lithium-air batteries have the potential to pack even more punch for a given weight than lithium-ion batteries because they replace one of the heavy solid electrodes with a porous carbon electrode that stores energy by capturing oxygen from air flowing through the system, combining it with lithium ions to form lithium oxides. The new work takes this advantage one step further, creating carbon-fiber-based electrodes that are substantially more porous than other carbon electrodes, and can therefore more efficiently store the solid oxidized lithium that fills the pores as the battery discharges. "We grow vertically aligned arrays of carbon nanofibers using a chemical vapor deposition process. These carpet-like arrays provide a highly conductive, low-density scaffold for energy storage," explains Robert Mitchell, a graduate student in MIT's Department of Materials Science and Engineering (DMSE) and co-author of a paper describing the new findings in the journal Energy and Environmental Science . During discharge, lithium-peroxide particles grow on the carbon fibers, adds co-author Betar Gallant, a graduate student in MIT's Department of Mechanical Engineering. In designing an ideal electrode material, she says, it's important to "minimize the amount of carbon, which adds unwanted weight to the battery, and maximize the space available for lithium peroxide," the active compound that forms during the discharging of lithium-air batteries. "We were able to create a novel carpet-like material — composed of more than 90 percent void space — that can be filled by the reactive material during battery operation," says Yang Shao-Horn, the Gail E. Kendall Professor of Mechanical Engineering and Materials Science and Engineering and senior author of the paper. The other senior author of the paper is Carl Thompson, the Stavros Salapatas Professor of Materials Science and Engineering and interim head of DMSE. In earlier lithium-air battery research that Shao-Horn and her students reported last year, they demonstrated that carbon particles could be used to make efficient electrodes for lithium-air batteries. In that work, the carbon structures were more complex but only had about 70 percent void space. The gravimetric energy stored by these electrodes — the amount of power they can store for a given weight — "is among the highest values reported to date, which shows that tuning the carbon structure is a promising route for increasing the energy density of lithium-air batteries," Gallant says. The result is an electrode that can store four times as much energy for its weight as present lithium-ion battery electrodes. In the paper published last year, the team had estimated the kinds of improvement in gravimetric efficiency that might be achieved with lithium-air batteries; this new work "realizes this gravimetric gain," Shao-Horn says. Further work is still needed to translate these basic laboratory advances into a practical commercial product, she cautions. Because the electrodes take the form of orderly "carpets" of carbon fibers — unlike the randomly arranged carbon particles in other electrodes — it is relatively easy to use a scanning electron microscope to observe the behavior of the electrodes at intermediate states of charge. The researchers say this ability to observe the process, an advantage that they had not anticipated, is a critical step toward further improving battery performance. For example, it could help explain why existing systems degrade after many charge-discharge cycles. Ji-Guang Zhang, a laboratory fellow in battery technology at the Pacific Northwest National Laboratory, says this is "original and high-quality work." He adds that this research "demonstrates a very unique approach to preparing high-capacity electrodes for lithium-air batteries." http://web.mit.edu/newsoffice/2011/better-battery-storage-0725.html
标签: 储能
