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Considerations to Aqueous Storage Batteries
更新日期:2019-08-16  
 目:Considerations to Aqueous Storage Batteries

报告人:纪秀磊    副教授 

 位:美国俄勒冈州立大学 

 间:2019/8/21(星期三)上午10:30 

 点:海西院二号楼228报告厅

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个人简介:Bio: Prof. Ji Xiulei (纪秀磊) graduated from Jilin University with a B.Sc. in chemistry in 2003. He obtained his Ph.D. degree from the University of Waterloo in 2009. He was an NSERC Postdoctoral Fellow at the University of California, Santa Barbara from 2010 to 2012. Dr. Ji is currently a tenured Associate Professor at the Department of Chemistry, Oregon State University. He has published 109 articles in journals, including Nature Materials, Nature Energy, Nature Chemistry, Nature Commun., JACS, Angew. Chem. His H-index is 45 (Web of Science), and the non-self-citations are more than 12,400 (Web of Science). He received 2016 CAREER Award of National Science Foundation, the DOE Energy Battery500 Seedling Award (2017), the ACS PRF Doctoral New Investigator Award (2015), the Innovation Challenge Award, Natural Sciences and Engineering Research Council of Canada (2010). He is a Scialog Fellow. He serves as an Associate Editor of Carbon Energy, a new Wiley journal.
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报告摘要:The coming 5G era demands safe storage solutions for data centers more than ever, where it is the gel lead-acid batteries that dominate the market. The market for storage batteries is incredibly large, letting along the needs of storing solar and wind electricity. It is the levelized energy cost (LEC), the expense of every kWh stored during the entire life time of storage batteries, that dictates whether the technology can penetrate the market. To minimize LEC that is a function of materials and manufacturing cost, operation cost, energy density, depth of discharge, and cycle life, one should at least employ earth-abundant materials and promote the electrochemical performance for inherently safe technologies. To date, a consensus has not been reached about the choice of storage batteries despite the fact that the community has heavily invested in several beyond-lithium batteries. During the past several years, we have shifted our attention to aqueous batteries. In our studies, we did not focus on designing the electrode materials for a particular battery technology; instead, we hope to elucidate general design principles of battery chemistries from a holistic view of chemistry that encompasses five dimensions of considerations: electrolytes, electrodes, ion charge carriers, electrode-ion interactions, and basic battery operation principles. In this talk, I will present examples on these considerations, in particular, about the ion-electrode chemical bonding, the Grotthuss mechanism, and their implications.