Sulfur-carbon material composite body, positive electrode material for lithium sulfur secondary batteries, and lithium sulfur secondary battery
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United States of America Patent
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Nov 1, 2022
Grant Date -
Jun 4, 2020
app pub date -
May 31, 2018
filing date -
Jun 5, 2017
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Abstract
Provided is a sulfur-carbon material composite body which, when used for an electrode of a secondary battery, is unlikely to degrade cycle characteristics at the time of charging and discharging of the secondary battery. Disclosed is a sulfur-carbon material composite body including a first carbon material having a graphene layered structure; a spacer at least partially disposed between graphene layers of the first carbon material or at an end of the first carbon material; and sulfur or a sulfur-containing compound at least partially disposed between the graphene layers of the first carbon material or at the end of the first carbon material.
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