Electrochemical properties of MnS–C and MnO–C composite powders prepared via spray drying process

Jeon, Kyung Min; Cho, Jung Sang

doi:10.1016/j.jpowsour.2015.06.142

Cited by 37 publications

(15 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The rate performance is in accord with the discharge/charge voltage profiles and the cycling performance. A comparison between the reported MnS-based anode material [ 12 , 16 , 18 , 19 ] and our product is summarized in Table 1 . Obviously, the as-synthesized γ -MnS in this work shows good electrochemical performance.…”

Section: Resultsmentioning

confidence: 99%

“…Under a current density of 500 mA g −1 , the as-synthesized coral-like α-MnS can still deliver a reversible capacity of 699 mA h g −1 after 400 cycles [ 18 ]. Kang’s group have also reported the synthesis of MnS-C using the spray drying process, which exhibits a discharge capacity of 786 mA h g −1 at a current density of 500 mA g −1 after 100 cycles [ 19 ]. Despite these remarkable progresses, the electrochemical performance of MnS-based anode material is still far from satisfying when considering its practical use in LIBs.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

l-Cysteine-Assisted Synthesis of Urchin-Like γ-MnS and Its Lithium Storage Properties

Jiao

Sun

et al. 2016

Nanoscale Res Lett

View full text Add to dashboard Cite

MnS has been attracting more and more attentions in the fields of lithium ion batteries (LIBs) because of its high energy density and low voltage potential. In this paper, we present a simple method for the preparation of urchin-like γ-MnS microstructures using l-cysteine and MnCl2 · 4H2O as the starting materials. The urchin-like γ-MnS microstructures exhibit excellent cycling stability (823.4 mA h g−1 at a current density of 500 mA g−1, after 1000 cycles). And the discharge voltage is about 0.75 V, making it a good candidate for the application as the anode material in LIBs. SEM, TEM, and XRD were employed to inspect the changes of the active materials during the electrochemical process, which clearly indicate that the structural pulverization and reformation of the γ-MnS microstructures play important roles for the maintenance of the electrochemical performance during the charge/discharge process.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

l-Cysteine-Assisted Synthesis of Urchin-Like γ-MnS and Its Lithium Storage Properties

Jiao

Sun

et al. 2016

Nanoscale Res Lett

View full text Add to dashboard Cite

show abstract

“…e) Comparison of the rate capabilities in this work and in other α-MnS-based composites reported previously. [3,20,23,24,[33][34][35]43,44] (α-MnS/SCMFs/Ni) exhibits a higher reversible capacity compared to α-MnS/SCMFs/Cu (the detailed discussion is reported in the Supporting Information ( Figure S20, Supporting Information)). After the first cycle, the capacity of α-MnS/SCMFs/ Ni continuously increases to ≈1500 mAh g −1 after 120 cycles, although with lower CE compared to α-MnS/SCMFs/Cu.…”

Section: Electrochemical Performance In Half Cells In Situ Dilatometmentioning

confidence: 99%

Superior Lithium Storage Capacity of α‐MnS Nanoparticles Embedded in S‐Doped Carbonaceous Mesoporous Frameworks

Kim

et al. 2019

Advanced Energy Materials

124

View full text Add to dashboard Cite

stability, power density, and safety. [1,3,4] Among the alternative electrode materials, transition metal sulfides (TMSs) are quite appealing due to their improved safety and high theoretical capacity (e.g., CuS: 560 mAh g −1 ; CoS 2 : 870 mAh g −1 ; and FeS 2 : 894 mAh g −1 , as calculated for the full conversion reaction). [4] Important, compared to other conversion materials, e.g., oxides, TMSs usually show improved electronic conductivity as well as faster reaction kinetics due to the weaker metal-sulfur bond (compared to the metal-oxygen bond), making the conversion reaction easier. [4] In addition, the voltage hysteresis of sulfides (≈0.7 V) is distinctly lower than that of oxides (≈0.9 V), thus promising better energy efficiencies. [5] Manganese sulfide (α-MnS) is particularly appealing as anode material for LIBs, as it possesses a large theoretical capacity (616 mAh g −1 ) and a lower redox potential compared to other TMSs, such as copper, cobalt, and iron sulfides-besides being highly abundant, ecofriendly, and less expensive. [3,6,7] Despite these advantages, the application of α-MnS as anode material in LIBs has been hampered due to common problems of TMSs such as: (i) serious volume variation during repeated (dis)charge processes leading to poor cycling stability, and (ii) low rate capability arising from low electronic conductivity and Li-ion mobility. [3,7] In order to improve the lithium-ion storage performance of TMSs, many approaches have been proposed. One of the most efficient strategies, so far, is to fabricate nano/microstructured composite materials, Herein, a Mn-based metal-organic framework is used as a precursor to obtain well-defined α-MnS/S-doped C microrod composites. Ultrasmall α-MnS nanoparticles (3-5 nm) uniformly embedded in S-doped carbonaceous mesoporous frameworks (α-MnS/SCMFs) are obtained in a simple sulfidation reaction. As-obtained α-MnS/SCMFsshows outstanding lithium storage performance, with a specific capacity of 1383 mAh g −1 in the 300th cycle or 1500 mAh g −1 in the 120th cycle (at 200 mA g −1 ) using copper or nickel foil as the current collector, respectively. The significant (pseudo)capacitive contribution and the stable composite structure of the electrodes result in impressive rate capabilities and outstanding long-term cycling stability. Importantly, in situ X-ray diffraction measurements studies on electrodes employing various metal foils/disks as current collector reveal the occurrence of the conversion reaction of CuS at (de)lithiation process when using copper foil as the current collector. This constitutes the first report of the reaction mechanism for α-MnS, eventually forming metallic Mn and Li 2 S. In situ dilatometry measurements demonstrate that the peculiar structure of α-MnS/SCMFs effectively restrains the electrode volume variation upon repeated (dis)charge processes. Finally, α-MnS/SCMFs electrodes present an impressive performance when coupled in a full cell with commercial LiMn 1/3 Co 1/3 Ni 1/3 O 2 cathodes.

show abstract

“…Similarly, Liu et al [378] used mesoporous carbon microspheres prepared by spray-drying as a host for selenium. Oxides in spray-dried metal oxide/carbon composites can be transformed into sulfides or selenides by reaction with appropriate gaseous atmospheres (thiourea in Ar/H 2 [114,375,379] or Se in Ar/H 2 [367]). Wang et al [380] reported the impregnation of molten lithium in CNT spray-dried spheres.…”

Section: Post-processing Of the Spray-dried Precursorsmentioning

confidence: 99%

Spray-Drying of Electrode Materials for Lithium- and Sodium-Ion Batteries

et al. 2018

View full text Add to dashboard Cite

The performance of electrode materials in lithium-ion (Li-ion), sodium-ion (Na-ion) and related batteries depends not only on their chemical composition but also on their microstructure. The choice of a synthesis method is therefore of paramount importance. Amongst the wide variety of synthesis or shaping routes reported for an ever-increasing panel of compositions, spray-drying stands out as a versatile tool offering demonstrated potential for up-scaling to industrial quantities. In this review, we provide an overview of the rapidly increasing literature including both spray-drying of solutions and spray-drying of suspensions. We focus, in particular, on the chemical aspects of the formulation of the solution/suspension to be spray-dried. We also consider the post-processing of the spray-dried precursors and the resulting morphologies of granules. The review references more than 300 publications in tables where entries are listed based on final compound composition, starting materials, sources of carbon etc.

show abstract

Electrochemical properties of MnS–C and MnO–C composite powders prepared via spray drying process

Cited by 37 publications

References 57 publications

l-Cysteine-Assisted Synthesis of Urchin-Like γ-MnS and Its Lithium Storage Properties

l-Cysteine-Assisted Synthesis of Urchin-Like γ-MnS and Its Lithium Storage Properties

Superior Lithium Storage Capacity of α‐MnS Nanoparticles Embedded in S‐Doped Carbonaceous Mesoporous Frameworks

Spray-Drying of Electrode Materials for Lithium- and Sodium-Ion Batteries

Contact Info

Product

Resources

About