Porous SiOCN with ultrafine CoSe2 nanoparticle modified separators for promoting polysulfides capture and redox kinetics in lithium-sulfur batteries

Chen, Qingqing; Hu, Jinlong; Xia, Qineng; Li, Youpeng; Zhong, Hexiang; Zhang, Lingzhi

doi:10.1016/j.mtcomm.2022.103743

Cited by 4 publications

(1 citation statement)

References 33 publications

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“…The prepared hollow Co 0.85 Se/C material can provide sufficient This journal is © The Royal Society of Chemistry 2022 catalytic sites and Li + diffusion channels to bind soluble LiPSs together to promote the redox reaction of LiPSs bidirectionally. Different from the aforementioned modiers combined with carbon materials, in the work of Chen et al 99 the ultra-ne CoSe 2 nanoparticles/porous silicon-oxygen-carbon-nitrogen composite (CoSe 2 /P-SiOCN) was explored as an LSB separator-modier material (Fig. 14d-d 3 ).…”

Section: Modied Separatorsmentioning

confidence: 99%

Advanced preparation and application of transition metal selenides in lithium–sulfur batteries: a review

et al. 2022

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Section: Modied Separatorsmentioning

confidence: 99%

Advanced preparation and application of transition metal selenides in lithium–sulfur batteries: a review

et al. 2022

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An adsorption-catalytic conversion catalyst Fe2O3@C-modified separator for boosting conversion of lithium polysulfides and long-life lithium-sulfur batteries

Deng,

Men,

Chen

et al. 2024

Ionics

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Hierarchical NiS₂/1T-MoS₂ Nanocomposite for Stable Lithium Sulfur Batteries

Han,

Shao,

Jia

et al. 2024

ACS Appl. Nano Mater.

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The practical applications of lithium−sulfur (Li−S) batteries have been significantly impeded by the heavy shuttle effect and slow bidirectional conversion of lithium polysulfides (LiPSs). In this study, a hierarchical NiS 2 /1T-MoS 2 nanocomposite is utilized as a functionalized separator modifier to overcome the challenges. The MoS 2 nanosheets are vertically and uniformly aligned on the surface of NiS 2 microspheres, constructing a hierarchical yolk−shell structure. The NiS 2 support not only significantly reduces the agglomeration of MoS 2 nanosheets but also effectively stabilizes their 1T-phase structure, which is highly desirable for high-performance Li−S batteries. The Li−S battery with the NiS 2 /MoS 2 −CNT-modified separator delivers an excellent initial specific capacity of 1228 mA h g −1 at 0.2 C with a high-capacity retention of 85% over 100 cycles. It even achieves a discharge capacity of 722 mA h g −1 at 5 C. Furthermore, it maintains remarkable cycling stability with only 0.051% capacity decay per cycle during the long-term cycles at 1 C. This study not only provides a viable scheme for separator modifier design toward advanced Li−S batteries but also offers a universal route for stabilizing the 1T-phase structure of MoS 2 .

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Porous SiOCN with ultrafine CoSe2 nanoparticle modified separators for promoting polysulfides capture and redox kinetics in lithium-sulfur batteries

Cited by 4 publications

References 33 publications

Advanced preparation and application of transition metal selenides in lithium–sulfur batteries: a review

Advanced preparation and application of transition metal selenides in lithium–sulfur batteries: a review

An adsorption-catalytic conversion catalyst Fe2O3@C-modified separator for boosting conversion of lithium polysulfides and long-life lithium-sulfur batteries

Hierarchical NiS₂/1T-MoS₂ Nanocomposite for Stable Lithium Sulfur Batteries

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Porous SiOCN with ultrafine CoSe2 nanoparticle modified separators for promoting polysulfides capture and redox kinetics in lithium-sulfur batteries

Cited by 4 publications

References 33 publications

Advanced preparation and application of transition metal selenides in lithium–sulfur batteries: a review

Advanced preparation and application of transition metal selenides in lithium–sulfur batteries: a review

An adsorption-catalytic conversion catalyst Fe2O3@C-modified separator for boosting conversion of lithium polysulfides and long-life lithium-sulfur batteries

Hierarchical NiS2/1T-MoS2 Nanocomposite for Stable Lithium Sulfur Batteries

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Hierarchical NiS₂/1T-MoS₂ Nanocomposite for Stable Lithium Sulfur Batteries