Three-dimensional graphite aerogel sulfur-carrying composite material as well as preparation method and application thereof
A technology of graphene airgel and composite materials, which is applied in the field of electrode materials for lithium-sulfur batteries, can solve problems such as poor cycle performance and rate performance, unsatisfactory material conductivity, complicated preparation process, etc., and achieve convenient large-scale production , improve cycle stability and rate performance, and alleviate the effect of volume change
Active Publication Date: 2017-06-09
NANJING NORMAL UNIVERSITY
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Abstract
The invention discloses a three-dimensional graphite aerogel sulfur-carrying composite material as well as a preparation method and application thereof. The preparation method comprises the following steps: forming an aerogel precursor from sulfur and oxidized graphene, and performing reduction by using hydrazine hydrate, thereby obtaining a graphene wrapped sulfur- composite material of three-dimensional network structures of which the interiors are communicated with one another. Compared with the prior art, the composite material disclosed by the invention can be used as an anode material of a lithium-sulfur battery, and has preponderant circulation stability and high rate capability.
Application Domain
Cell electrodes
Technology Topic
High rateCyclic stability +7
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PUM
Property | Measurement | Unit |
Discharge specific capacity | 711.0 | m |
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