Lithium-Sulfur Secondary Battery
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United States of America Patent
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Jan 5, 2017
app pub date -
Oct 15, 2014
filing date -
Dec 18, 2013
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Abstract
Provided is a lithium-sulfur secondary battery capable of suppressing diffusion of a polysulfide eluded into an electrolytic solution into a negative electrode and capable of suppressing lowering of a charge-discharge capacity. In the lithium-sulfur secondary battery of this invention, including a positive electrode P containing a positive electrode active material containing sulfur, a negative electrode N containing a negative electrode active material containing lithium, and a separator S disposed between the positive electrode and the negative electrode to hold an electrolytic solution L, a polymer nonwoven fabric F containing a sulfonic group is disposed at least one of between the separator and the positive electrode and between the separator and the negative electrode.
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