An imprint of sulfur/SiO2in N-doped graphene as positive electrode for lithium-sulfur rechargeable batteries

被引：0

作者：

Rajkumar, P. ^{[1
]}

Diwakar, K. ^{[1
]}

Krishnaveni, K. ^{[1
]}

Subadevi, R. ^{[1
]}

Gnanamuthu, R. M. ^{[2
]}

Wang, Fu-Ming ^{[3
]}

Sivakumar, M. ^{[1
]}

机构：

[1] Alagappa Univ, Dept Phys, Energy Mat Lab, 120,Sci Block, Karaikkudi 630003, Tamil Nadu, India

[2] SRM Inst Sci & Technol, Dept Chem, Kattankulathur 603203, Tamil Nadu, India

[3] Natl Taiwan Univ Sci & Technol, Grad Inst Appl Sci & Technol, Taipei 106, Taiwan

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2020年 / 126卷 / 07期

关键词：

Sulfur electrode; Silicon dioxide; Nitrogen doped graphene; Simple heat treatment; CATHODE MATERIAL; PERFORMANCE; CARBON; COMPOSITE; OXIDE; CAPACITY; DIOXIDE; SPHERES; HYBRID; HOST;

D O I：

10.1007/s00339-020-03617-z

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ternary sulfur (S)-/silicon dioxide (SiO2)-/nitrogen-doped graphene (NG) composite has been prepared by simple heat treatment. Morphological study illustrates the well dispersion of sulfur in the layered structure of SiO2-NG. The initial specific capacity of S-SiO2-NG composite delivers 1204 mAh g(-1), and it maintains the capacity of 716 mAh g(-1)during the 100th cycle at 0.1 C rate with 96% of Coulombic efficiency. The enhanced cycling performance of S-SiO2-NG cathode is mainly attributed to the combined contribution from both SiO(2)and NG. [GRAPHICS] .

引用

页数：8

共 35 条

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