Cobalt-embedded hierarchically-porous hollow carbon microspheres as multifunctional confined reactors for high-loading Li-S batteries

Su, Li; Zhang, Jinqiang; Chen, Yi; Yang, Wu; Wang, Jing; Ma, Zhipeng; Shao, Guangjie; Wang, Guoxiu

doi:10.1016/j.nanoen.2021.105981

Cited by 91 publications

(44 citation statements)

References 47 publications

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“…In addition, the Coulomb efficiency remained almost 100% during the high-load cycle, which meant that most of the LiPSs were successfully fixed to the cathode during the electrochemical reaction. Under high loading (8.2 mg cm –2 ), the rGO-S/ZnCo 2 O 4 @NC/CC cathode of Li–S batteries still has excellent specific capacity and cycle performance, which are higher than many previously reported cathodes and have been summarized in Figure d and Table S2. − …”

Section: Resultsmentioning

confidence: 79%

Reduced Graphene Oxide-Coated Zinc–Cobalt Oxide Nanosheet Arrays with N-Doped Carbon Anchored on Carbon Cloths as Cathode Materials for High-Sulfur-Loading Li–S Batteries

Shan

Guo

Zou

et al. 2021

ACS Appl. Nano Mater.

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To meet practical application needs, high-massloading lithium−sulfur (Li−S) batteries are urgently needed for achieving good electrochemical performance. Here, unique threedimensional (3D) reduced graphene oxide (rGO)-coated ultrathin zinc−cobalt oxide composite N-doped carbon self-supporting stratified porous nanosheet arrays, anchored on flexible carbon cloths (CCs) (rGO-S/ZnCo 2 O 4 @NC/CCs), are designed and chosen as independent cathodes. A lithium−sulfur battery using rGO-S/ZnCo 2 O 4 @NC/CC as the cathode exhibits a high capacity of around 1377.8 mAh g −1 and retains an outstanding capacity of around 1006.3 mAh g −1 after 700 cycles at 0.1 C with a sulfur loading of 2.2 mg cm −2 . Moreover, even under a high sulfur load of 8.2 mg cm −2 , a superior capacity of 735.9 mAh g −1 can be achieved at 0.1 C. In this work, a special function and a 3D self-supporting stratified porous nanostructure with a conductive rGO coating have been designed, which reasonably alleviate the "shuttle effect" of high-load Li−S batteries through the "internal and external double repair" action.

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Section: Resultsmentioning

confidence: 79%

Reduced Graphene Oxide-Coated Zinc–Cobalt Oxide Nanosheet Arrays with N-Doped Carbon Anchored on Carbon Cloths as Cathode Materials for High-Sulfur-Loading Li–S Batteries

Shan

Guo

Zou

et al. 2021

ACS Appl. Nano Mater.

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“…5c and Table S1†), which indicates that NF@VG–S has better performance. 39–46 This work provides a prospect for the development of high energy density Li–S batteries with high sulfur loading and high sulfur content.…”

Section: Resultsmentioning

confidence: 99%

Nitrogen-doped porous carbon fiber/vertical graphene as an efficient polysulfide conversion catalyst for high-performance lithium–sulfur batteries

Lin

et al. 2022

J. Mater. Chem. A

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“…Symmetric cells were assembled based on these materials and Li 2 S 6 electrolyte to evaluate the catalytic activity. 38 The cyclic voltammogram (CV) proles are shown in Fig. 5a and two pairs of redox peaks were observed for all materials.…”

Section: Catalytic Performancementioning

confidence: 98%

NiCo (oxy)selenide electrocatalysts via anionic regulation for high-performance lithium–sulfur batteries

Wang

Sun

et al. 2022

J. Mater. Chem. A

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Cobalt-embedded hierarchically-porous hollow carbon microspheres as multifunctional confined reactors for high-loading Li-S batteries

Cited by 91 publications

References 47 publications

Reduced Graphene Oxide-Coated Zinc–Cobalt Oxide Nanosheet Arrays with N-Doped Carbon Anchored on Carbon Cloths as Cathode Materials for High-Sulfur-Loading Li–S Batteries

Reduced Graphene Oxide-Coated Zinc–Cobalt Oxide Nanosheet Arrays with N-Doped Carbon Anchored on Carbon Cloths as Cathode Materials for High-Sulfur-Loading Li–S Batteries

Nitrogen-doped porous carbon fiber/vertical graphene as an efficient polysulfide conversion catalyst for high-performance lithium–sulfur batteries

NiCo (oxy)selenide electrocatalysts via anionic regulation for high-performance lithium–sulfur batteries

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