کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1295717 | 1498265 | 2015 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Intercalated SiOC/graphene composites as anode material for li-ion batteries Intercalated SiOC/graphene composites as anode material for li-ion batteries](/preview/png/1295717.png)
• An in-situ reaction method is employed to fabricate intercalated SiOC/graphene composites.
• The mixture of TTCS and GO is first crosslinking and then pyrolyzed to form the intercalation structure.
• It’s one-step preparation of SiOC/graphene composites, which the reduction and pyrolysis are completed simultaneously.
• The 10GNS/SiOC composites deliver a stable capacity at the current density of 50 mAh/g for 90 cycles.
Intercalated SiOC/graphene composites had been prepared by thermal reduction of TTCS/GO mixture, which was fabricated by dispersing GO into TTCS. Transmission electron microscopy (TEM) showed that SiOC nanoparticles were well encapsulated in a graphene matrix. The 10SiOC/graphene anode maintained a reversible capacity of 582 mAh/g after 90 cycles and had an initial coulombic efficiency of 63%. The excellent cycling stability is attributed to the fact that the SiOC/graphene composite can accommodate large volume change of SiOC and maintain good electronic contact. These results indicate that SiOC/graphene is an excellent anode material and has promising prospects in lithium ion batteries (LIBS) applications.
Journal: Solid State Ionics - Volume 278, 1 October 2015, Pages 198–202