Modeling of nano-structured cathodes for improved lithium-sulfur batteries
نویسندگان
چکیده
منابع مشابه
Capacity Fade Analysis of Sulfur Cathodes in Lithium–Sulfur Batteries
Rechargeable lithium-sulfur (Li-S) batteries are receiving ever-increasing attention due to their high theoretical energy density and inexpensive raw sulfur materials. However, their rapid capacity fade has been one of the key barriers for their further improvement. It is well accepted that the major degradation mechanisms of S-cathodes include low electrical conductivity of S and sulfides, pre...
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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...
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*Correspondence: Zhumabay Bakenov , Institute of Batteries LLC, Kabanbay Batyr Avenue 53, Astana 010000, Kazakhstan e-mail: [email protected] High specific energy and low cost flexible lithium/sulfur batteries have attracted significant attention as a promising power source to enable future flexible and wearable electronic devices. Here, we review recent progress in the development of free-sta...
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Due to its high theoretical energy density (2600 Wh kg-1), low cost, and environmental benignity, the lithium-sulfur (Li-S) battery is attracting strong interest among the various electrochemical energy storage systems. However, its practical application is seriously hampered by the so-called shuttle effect of the highly soluble polysulfides. Herein, a novel design of multifunctional sandwich-s...
متن کاملHollow carbon nanofiber-encapsulated sulfur cathodes for high specific capacity rechargeable lithium batteries.
Sulfur has a high specific capacity of 1673 mAh/g as lithium battery cathodes, but its rapid capacity fading due to polysulfides dissolution presents a significant challenge for practical applications. Here we report a hollow carbon nanofiber-encapsulated sulfur cathode for effective trapping of polysulfides and demonstrate experimentally high specific capacity and excellent electrochemical cyc...
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ژورنال
عنوان ژورنال: Electrochimica Acta
سال: 2015
ISSN: 0013-4686
DOI: 10.1016/j.electacta.2015.09.143