Graphitized porous carbon materials with high sulfur loading for lithium-sulfur batteries

Peng, Xiaoyuan; Lü, Yanqiu; Zhou, Lili; Sheng, Tian; Shen, Shigang; Liao, Hong‐Gang; Huang, Ling; Li, Juntao; Sun, Shi‐Gang

doi:10.1016/j.nanoen.2016.12.060

Cited by 129 publications

(44 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Lithium-sulfur (Li-S) batteries have become a hot topic due to their excellent specic capacity (1675 mA h g À1 ) and theoretical energy density (2600 W h kg À1 ). [1][2][3][4][5] Nevertheless, performances of Li-S batteries are not satisfactory as in theory. Typical weaknesses include poor cycle stability, unimpressive rate performance and unsatisfactory energy production due to the dissolved polysulde intermediates (Li 2 S x , 4 # x # 8) in the electrolyte, and the low electrical and ionic conductivity of elemental sulfur and its nal discharge product.…”

Section: Introductionmentioning

confidence: 99%

Study of the discharge/charge process of lithium–sulfur batteries by electrochemical impedance spectroscopy

et al. 2020

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

Study of the discharge/charge process of lithium–sulfur batteries by electrochemical impedance spectroscopy

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Great efforts have been devoted to addressing the above mentioned issues, and various strategies have been developed, including binders, separators or interlayers, electrolyte additives, carbon current collectors, and porous carbonaceous materials . Among these strategies, nanostructured carbonaceous materials such as meso/microporous carbon spheres, porous carbon nanosheets, carbon nanotubes/nanofibres, and graphene have been widely used as effective hosts to constrain sulfur or polysulfides. Despite their great potentials, achieving high efficient sulfur utilization and high energy density still remains an unsolved issue, because most of the reported high capacity and long cycle life results have been obtained only with relatively low sulfur loading (<2 mg cm −2 ) and/or low sulfur content of the cathodes (<70 wt%), hence giving rise to an unsatisfactory areal capacity (usually ≤2 mAh cm −2 ) that is hardly competitive to that of commercial LIBs (≈4 mAh cm −2 ) .…”

Section: Introductionmentioning

confidence: 99%

A Flexible 3D Multifunctional MgO‐Decorated Carbon Foam@CNTs Hybrid as Self‐Supported Cathode for High‐Performance Lithium‐Sulfur Batteries

Xiang

Liu

et al. 2017

Adv Funct Materials

190

113

View full text Add to dashboard Cite

One of the critical challenges to develop advanced lithium-sulfur (Li-S) batteries lies in exploring a high efficient stable sulfur cathode with robust conductive framework and high sulfur loading. Herein, a 3D flexible multifunctional hybrid is rationally constructed consisting of nitrogen-doped carbon foam@CNTs decorated with ultrafine MgO nanoparticles for the use as advanced current collector. The dense carbon nanotubes uniformly wrapped on the carbon foam skeletons enhance the flexibility and build an interconnected conductive network for rapid ionic/electronic transport. In particular, a synergistic action of MgO nanoparticles and in situ N-doping significantly suppresses the shuttling effect via enhanced chemisorption of lithium polysulfides. Owing to these merits, the as-built electrode with an ultrahigh sulfur loading of 14.4 mg cm −2 manifests a high initial areal capacity of 10.4 mAh cm −2 , still retains 8.8 mAh cm −2 (612 mAh g −1 in gravimetric capacity) over 50 cycles. The best cycling performance is achieved upon 800 cycles with an extremely low decay rate of 0.06% at 2 C. Furthermore, a flexible soft-packaged Li-S battery is readily assembled, which highlights stable electrochemical characteristics under bending and even folding. This cathode structural design may open up a potential avenue for practical application of high-sulfur-loading Li-S batteries toward flexible energy-storage devices.

show abstract

“…3D hierarchical porous carbon with micro‐, meso‐ or macropores is an ideal electrode and substrate materials to improve the electrochemical performance of various batteries since 3D hierarchical porous carbon materials have high pore volume, interconnected pores and open channels, which can be rationally designed and facilely synthesized by using different materials as templates (like MOFs,, biomass,,,, inorganic salt,, etc.) and activating agent (alkali,, Ni,, etc.).…”

Section: Multiscale Pcns and Their Composites In Advanced Batteriesmentioning

confidence: 99%

Multiscale Porous Carbon Nanomaterials for Applications in Advanced Rechargeable Batteries

Fang

Xia

et al. 2018

Batteries & Supercaps

View full text Add to dashboard Cite

The Construction of advanced electrode materials can push the boundaries of electrochemical performance of energy storage devices and accordingly open up a booming energy storage market. Typically, porous carbon is one of the most widely used materials in the field of batteries due to its attractive properties including large porosity, high electronic mobility, good mechanical strength and chemical stability, and ultrahigh specific surface area. This review focuses on diverse synthetic methods of multiscale porous carbon nanomaterials including direct carbonization, electrospinning, puffing, hydrothermal methods, and chemical vapor deposition, with and without templates, as well as their applications in different rechargeable secondary batteries. We summarize different dimensional porous carbon (1D, 2D and 3D) with controlled pore sizes and analyze their formation mechanisms. Additionally, the structure-activity relationship of multiscale porous carbon nanomaterials is reviewed in detail. Meanwhile, we propose general guidelines to fabricate multiscale porous carbon nanomaterials with large surface area and high conductivity. Finally, future prospects and development trends on the advanced multiscale porous carbon nanomaterials toward construction of next-generation batteries are presented.

show abstract

Graphitized porous carbon materials with high sulfur loading for lithium-sulfur batteries

Cited by 129 publications

References 45 publications

Study of the discharge/charge process of lithium–sulfur batteries by electrochemical impedance spectroscopy

Study of the discharge/charge process of lithium–sulfur batteries by electrochemical impedance spectroscopy

A Flexible 3D Multifunctional MgO‐Decorated Carbon Foam@CNTs Hybrid as Self‐Supported Cathode for High‐Performance Lithium‐Sulfur Batteries

Multiscale Porous Carbon Nanomaterials for Applications in Advanced Rechargeable Batteries

Contact Info

Product

Resources

About