Overcoming the fundemental limitations of lithium sulfur batteries

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Authors
Li, Lu
Issue Date
2018-08
Type
Electronic thesis
Thesis
Language
ENG
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Mechanical engineering
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Abstract
Firstly, the strategies of chemical adsorption are used to control the shuttling of lithium polysulfides. ReS2 nanosheets, nitrogen-doped graphene and few-layer phosphorene nanosheets are used as chemi-cal immobilizers in the cathode structures of Li-S batteries. Experimental results combined with the theo-retical calculations show the existence of strong binding between lithium polysulfides and these chemical adsorbents, which limits the dissolution of lithium polysulfides into the electrolyte, improves electrochemi-cal stability and promotes fast electrochemical reaction kinetics.
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August 2018
School of Engineering
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Rensselaer Polytechnic Institute, Troy, NY
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