A Sulfur Cathode with PomegranateLike Cluster Structure
نویسندگان
چکیده
Dr. W. Li, Z. Liang, Dr. Z. Lu, Dr. H. Yao, Z. W. Seh, Dr. K. Yan Department of Materials Science and Engineering Stanford University Stanford , CA 94305 , USA E-mail: [email protected] Dr. G. Zheng Department of Chemical Engineering Stanford University Stanford , CA 94305 , USA Dr. Y. Cui Stanford Institute for Materials and Energy Sciences SLAC National Accelerator Laboratory 2575 Sand Hill Road Menlo Park , CA 94025 , USA
منابع مشابه
Sulfur cathodes with hydrogen reduced titanium dioxide inverse opal structure.
Sulfur is a cathode material for lithium-ion batteries with a high specific capacity of 1675 mAh/g. The rapid capacity fading, however, presents a significant challenge for the practical application of sulfur cathodes. Two major approaches that have been developed to improve the sulfur cathode performance include (a) fabricating nanostructured conductive matrix to physically encapsulate sulfur ...
متن کاملConductive framework of inverse opal structure for sulfur cathode in lithium-sulfur batteries
As a promising cathode inheritor for lithium-ion batteries, the sulfur cathode exhibits very high theoretical volumetric capacity and energy density. In its practical applications, one has to solve the insulating properties of sulfur and the shuttle effect that deteriorates cycling stability. The state-of-the-art approaches are to confine sulfur in a conductive matrix. In this work, we utilize ...
متن کاملA novel lithium/sulfur battery based on sulfur/graphene nanosheet composite cathode and gel polymer electrolyte
A novel sulfur/graphene nanosheet (S/GNS) composite was prepared via a simple ball milling of sulfur with commercial multi-layer graphene nanosheet, followed by a heat treatment. High-resolution transmission and scanning electronic microscopy observations showed the formation of irregularly interlaced nanosheet-like structure consisting of graphene with uniform sulfur coating on its surface. Th...
متن کاملScalable synthesis of a sulfur nanosponge cathode for a lithium–sulfur battery with improved cyclability
Although lithium–sulfur batteries exhibit a high initial capacity, production costs and lack of cyclability are major limitations. Here we report a liquid-based, low-cost and reliable synthesis method of a lithium–sulfur composite cathode with improved cyclability. An open network of Conductive Carbon Black nanoparticles (Cnet) is infused with a sulfur network (Snet) to form sponge-like network...
متن کاملSulfur-graphene nanostructured cathodes via ball-milling for high-performance lithium-sulfur batteries.
Although much progress has been made to develop high-performance lithium-sulfur batteries (LSBs), the reported physical or chemical routes to sulfur cathode materials are often multistep/complex and even involve environmentally hazardous reagents, and hence are infeasible for mass production. Here, we report a simple ball-milling technique to combine both the physical and chemical routes into a...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2015