Elucidating the energy storage mechanism of ZnMn<sub>2</sub>O<sub>4</sub> as promising anode for Li-ion batteries

Zhao, Zijian; Tian, Guiying; Sarapulova, Angelina; Trouillet, Vanessa; Fu, Qiang; Geckle, Udo; Ehrenberg, Helmut; Dsoke, Sonia

doi:10.1039/c8ta06294c

Cited by 61 publications

(61 citation statements)

References 62 publications

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“…This demonstrates that the FeS/Fe 3 C/C electrode has rapid electrochemical reaction kinetics, which benefits from the addition of the interconnected carbon balls. Moreover, the slope in the low‐frequency region for the FeS/Fe 3 C/C electrode is larger than that for the FeS electrode, which implies faster Li + mobility in the FeS/Fe 3 C/C electrode …”

Section: Resultsmentioning

confidence: 99%

“…Moreover,t he slope in the low-frequency region for the FeS/Fe 3 C/C electrode is larger than that for the FeS electrode, which implies faster Li + mobility in the FeS/Fe 3 C/C electrode. [43,44] Figure10d isplays R values as calculated with Relaxis 3s oftware in lithiationa nd delithiation conditions. The electrolyte resistance R el for the FeS/Fe 3 C/C electrode (11 W)i sa lmost unchanged upon cycling, whereas the R el for the FeS electrode first increases until the 100th cycle, then it remains quite stable at 8 W (Figure10a,d).…”

Section: Electrochemicali Mpedance Spectroscopy Evolutionmentioning

confidence: 99%

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Effect of Continuous Capacity Rising Performed by FeS/Fe₃C/C Composite Electrodes for Lithium‐Ion Batteries

Sarapulova

Pfeifer

et al. 2020

ChemSusChem

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FeS‐based composites are sustainable conversion electrode materials for lithium‐ion batteries, combining features like low cost, environmental friendliness, and high capacities. However, they suffer from fast capacity decay and low electron conductivity. Herein, novel insights into a surprising phenomenon of this material are provided. A FeS/Fe3C/C nanocomposite synthesized by a facile hydrothermal method is compared with pure FeS. When applied as anode materials for lithium‐ion batteries, these two types of materials show different capacity evolution upon cycling. Surprisingly, the composite delivers a continuous increase in capacity instead of the expected capacity fading. This unique behavior is triggered by a catalyzing effect of Fe3C nanoparticles. The Fe3C phase is a beneficial byproduct of the synthesis and was not intentionally obtained. To further understand the effect of interconnected carbon balls on FeS‐based electrodes, complementary analytic techniques are used. Ex situ X‐ray radiation diffraction and ex situ scanning electron microscopy are employed to track phase fraction and morphology structure. In addition, the electrochemical kinetics and resistance are evaluated by cyclic voltammetry and electrochemical impedance spectroscopy. These results reveal that the interconnected carbon balls have a profound influence on the properties of FeS‐based electrodes resulting in an increased electrode conductivity, reduced particle size, and maintenance of the structure integrity.

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Section: Resultsmentioning

confidence: 99%

Section: Electrochemicali Mpedance Spectroscopy Evolutionmentioning

confidence: 99%

Effect of Continuous Capacity Rising Performed by FeS/Fe₃C/C Composite Electrodes for Lithium‐Ion Batteries

Sarapulova

Pfeifer

et al. 2020

ChemSusChem

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“…The peak at 1303.8 eV in the Mg 1s spectrum can be attributed to Mg 2+ , 48,49 and the Zn 2p 3/2 at 1021.3 eV and Zn LMM at 988.6 eV are indicative of Zn 2+ . [50][51][52] 'NaCl' has also been successfully added to the HEO structure through an identical ball-milling approach. Because the ionic radius of Cl À is much larger than that of O 2À or F À , and Na + is larger than Li + (Cl À = 1.81 Å, O 2À = 1.40 Å, F À = 1.33 Å, Na + = 1.02 Å, Li + = 0.76 Å), 22 it is more difficult to achieve an entropystabilized single-phase structure.…”

Section: Materials Characterizationmentioning

confidence: 99%

Multi-anionic and -cationic compounds: new high entropy materials for advanced Li-ion batteries

Wang

Sarkar

Wang

et al. 2019

Energy Environ. Sci.

321

238

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“…Thus, the involvedl ithium storage mechanism can be described for the ZMO-NRs as follows [Eqs. (2)-(4)]: [8,9,23]…”

Section: Electrochemical Evaluationmentioning

confidence: 99%

Scalable Synthesis of One‐Dimensional Mesoporous ZnMnO₃ Nanorods with Ultra‐Stable and High Rate Capability for Efficient Lithium Storage

Zhang

et al. 2019

Chemistry A European J

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The cost-efficient ZnMnO 3 has attracted increasing attention as ap rospective anode candidate fora dvanced lithium-ion batteries (LIBs) owing to its resourceful abundance,large lithium storage capacity andlow operating voltage. However,i ts practical application is still seriously limited by the modest cyclinga nd rate performances. Herein, a facile design to scalable synthesize unique one-dimensional (1D) mesoporousZ nMnO 3 nanorods (ZMO-NRs) composed of nanoscale particles ( % 11 nm) is reported. The 1D mesoporouss tructurea nd nanoscale building blocks of the ZMO-NRs effectively promote the transporto fions/electrons,a ccommodate severe volume changes, and expose more active sites for lithium storage. Benefiting from these appealing structural merits,t he obtained ZMO-NRs anode exhibits excellent rate behavior ( % 454 mAh g À1 at 2Ag À1 )a nd ultralong term cyclic performance ( % 949.7 mAh g À1 even over 500 cycles at 0.5 Ag À1 )f or efficient lithium storage. Additionally,t he LiNi 0.8 Co 0.1 Mn 0.1 O 2 //ZMO-NRs full cell presentsapractical energy density ( % 192.2Whkg À1 )a nd impressive cyclabilityw ith approximately 91 %c apacity retention over 110cycles. This highlightst hat the ZMO-NRs product is a highlyp romising high-rate and stable electrode candidate towardsa dvanced LIBs in electronic devices and sustainable energys torageapplications.[a] Dr.

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Elucidating the energy storage mechanism of ZnMn₂O₄ as promising anode for Li-ion batteries

Abstract: Promising ZnMn2O4 anode provides high capacity in Li-ion batteries and the capacity increase during cycling due to the reversible Li storage in SEI and the extra redox reaction of Mn(ii)/Mn(iii).

Cited by 61 publications

References 62 publications

Effect of Continuous Capacity Rising Performed by FeS/Fe₃C/C Composite Electrodes for Lithium‐Ion Batteries

Effect of Continuous Capacity Rising Performed by FeS/Fe₃C/C Composite Electrodes for Lithium‐Ion Batteries

Multi-anionic and -cationic compounds: new high entropy materials for advanced Li-ion batteries

Scalable Synthesis of One‐Dimensional Mesoporous ZnMnO₃ Nanorods with Ultra‐Stable and High Rate Capability for Efficient Lithium Storage

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Elucidating the energy storage mechanism of ZnMn2O4 as promising anode for Li-ion batteries

Abstract: Promising ZnMn2O4 anode provides high capacity in Li-ion batteries and the capacity increase during cycling due to the reversible Li storage in SEI and the extra redox reaction of Mn(ii)/Mn(iii).

Cited by 61 publications

References 62 publications

Effect of Continuous Capacity Rising Performed by FeS/Fe3C/C Composite Electrodes for Lithium‐Ion Batteries

Effect of Continuous Capacity Rising Performed by FeS/Fe3C/C Composite Electrodes for Lithium‐Ion Batteries

Multi-anionic and -cationic compounds: new high entropy materials for advanced Li-ion batteries

Scalable Synthesis of One‐Dimensional Mesoporous ZnMnO3 Nanorods with Ultra‐Stable and High Rate Capability for Efficient Lithium Storage

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Elucidating the energy storage mechanism of ZnMn₂O₄ as promising anode for Li-ion batteries

Effect of Continuous Capacity Rising Performed by FeS/Fe₃C/C Composite Electrodes for Lithium‐Ion Batteries

Effect of Continuous Capacity Rising Performed by FeS/Fe₃C/C Composite Electrodes for Lithium‐Ion Batteries

Scalable Synthesis of One‐Dimensional Mesoporous ZnMnO₃ Nanorods with Ultra‐Stable and High Rate Capability for Efficient Lithium Storage