Lithium-sulfur battery and methods of preventing insoluble solid lithium-polysulfide deposition
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United States of America Patent
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Sep 27, 2016
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Sep 26, 2013
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Sep 26, 2013
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Abstract
An improved lithium-sulfur battery containing a surface-functionalized carbonaceous material. The presence of the surface-functionalized carbonaceous material generates weak chemical bonds between the functional groups of the surface-functionalized carbonaceous material and the functional groups of the polysulfides, which prevents the polysulfide migration to the battery anode, thereby providing a battery with relatively high energy density and good partial discharge efficiency.
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