Petal-like metal cobalt decorating carbon cloth as an effective host for flexible sulfur cathode

Guo，Hongling1; Su，Han1; Yang，Mingzhi1; Liu，Weiliang1; Ren，Manman1; Wang，Yuanhao2

2022-10-01

10.1007/s10854-022-09089-6

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS   Impact Factor & Quartile

0957-4522

1573-482X

Recently, lithium–sulfur batteries (LSBs) have attracted much attention due to their high theoretical capacity, low cost, and abundant sulfur resources in nature. However, the low conductivity of sulfur and the “shuttle effect” of lithium polysulfides (LPSs) severely limited its commercial application. In this work, metal cobalt-decorated carbon cloth composites (Co/CC) were prepared by a simple hydrothermal method, and used as S host in LSBs. SEM and TEM images exhibited that countless petal-like metal cobalt nanoparticles were uniformly supported on carbon cloth fibers. The high electrical conductivity and special fiber structure of the carbon cloth are beneficial to the transmission of electrons and Li during electrochemical process. Meanwhile, the metal cobalt can adsorb the LPSs and accelerate its conversion. Therefore, compared with CC–S electrode, the Co/CC–S electrode presented better electrochemical performance, at a higher sulfur loading of 2.5 mg cm, and it delivered a reversible capacity of 249.0 mA h g after 500 cycles at 1C with a low-capacity decay of 0.018% per cycle. Even at a high sulfur loading of 4.3 mg cm, the Co/CC–S electrode can present a reversible capacity of 273.3 mA h g after 180 cycles. This work provided a new idea for the application of CC in flexible and wearable LSBs.

SCI

English

Corresponding

Natural Science Foundation of Shandong Province[ZR2018MEM012];Natural Science Foundation of Shandong Province[ZR2021QE175];

WOS:000861189400006

MATERIALS SCIENCE

2-s2.0-85139149114

Scopus

1.School of Materials Science and Engineering,Qilu University of Technology (ShandongAcademy of Sciences),Jinan,250353,China
2.SUSTech Engineering Innovation Center,School of Environmental Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China

Guo，Hongling,Su，Han,Yang，Mingzhi,et al. Petal-like metal cobalt decorating carbon cloth as an effective host for flexible sulfur cathode[J]. JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS,2022,33(29):23250-23257.

Guo，Hongling,Su，Han,Yang，Mingzhi,Liu，Weiliang,Ren，Manman,&Wang，Yuanhao.(2022).Petal-like metal cobalt decorating carbon cloth as an effective host for flexible sulfur cathode.JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS,33(29),23250-23257.

Guo，Hongling,et al."Petal-like metal cobalt decorating carbon cloth as an effective host for flexible sulfur cathode".JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS 33.29(2022):23250-23257.