Hierarchical three-dimensional MnO nanorods/carbon anodes for ultralong-life lithium-ion batteries

Zhang, Wei; Sheng, Jinzhi; Zhang, Jie; He, Ting; Hu, Lin; Wang, Rui; Mai, Liqiang; Mu, Shichun

doi:10.1039/c6ta06933a

Cited by 88 publications

(52 citation statements)

References 47 publications

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“…Considerable progress has been made to overcome these challenges by improving the electrochemical performances of lithium–sulfur batteries . This includes the use of flexible carbon materials to improve the mechanical strength of the electrodes, and mesoporous carbon to trap polysulfides effectively through physical adsorption .…”

Section: Introductionmentioning

confidence: 99%

“…This includes the use of flexible carbon materials to improve the mechanical strength of the electrodes, and mesoporous carbon to trap polysulfides effectively through physical adsorption . It has been discovered that surface‐functionalized materials such as reduced graphene oxides (RGO) and polar metal oxides (MnO 2, Ti 4 O 7 ) show much better properties because of their hydrophilic surfaces, which can bind polysulfides through hydrophilic surface interactions, thus extending their cycle life …”

Section: Introductionmentioning

confidence: 99%

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Confined Sulfur in 3 D MXene/Reduced Graphene Oxide Hybrid Nanosheets for Lithium–Sulfur Battery

Bao

Xie

et al. 2017

Chemistry A European J

179

107

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Three-dimensional metal carbide MXene/reduced graphene oxide hybrid nanosheets are prepared and applied as a cathode host material for lithium-sulfur batteries. The composite cathodes are obtained through a facile and effective two-step liquid-phase impregnation method. Owing to the unique 3 D layer structure and functional 2 D surfaces of MXene and reduced graphene oxide nanosheets for effective trapping of sulfur and lithium polysulfides, the MXene/reduced graphene oxide/sulfur composite cathodes deliver a high initial capacity of 1144.2 mAh g at 0.5 C and a high level of capacity retention of 878.4 mAh g after 300 cycles. It is demonstrated that hybrid metal carbide MXene/reduced graphene oxide nanosheets could be a promising cathode host material for lithium-sulfur batteries.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Confined Sulfur in 3 D MXene/Reduced Graphene Oxide Hybrid Nanosheets for Lithium–Sulfur Battery

Bao

Xie

et al. 2017

Chemistry A European J

179

107

View full text Add to dashboard Cite

show abstract

“…Based on these targets, many reports about MnO and excellent electrochemical performance have been achieved. However, these materials usually only satisfy one or two merits, it is still a challenge to perfectly integrate all the advantages into the electrode material for competitive cell performance …”

Section: Introductionmentioning

confidence: 99%

3D Hierarchical Microballs Constructed by Intertwined MnO@N‐doped Carbon Nanofibers towards Superior Lithium‐Storage Properties

Fan

et al. 2018

Chemistry A European J

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MnO is a promising high-capacity anode material for lithium-ion batteries (LIBs), but pristine material suffers short cycle life and poor rate capability, thus hindering the practical application. In this work, a new type of porous MnO microballs stringed with N-doped porous carbon (3DHB-MnO@NC) with a well-connected hierarchical three-dimensional network structure was prepared by the facile self-template method. The 3DHB-MnO@NC electrode can effectively promote the ion/electron transfer and buffer the large volume change of electrode during the electrochemical reaction. As the anode for LIBs, the 3DHB-MnO@NC possesses outstanding cycling performance (1247.7 mA h g after 90 cycles at 200 mA g ) and good rate capabilities (949.6 mA h g after 450 cycles at 1000 mA g ). The facile self-template method of the prepared 3DHB-MnO@NC composite paves a new way for practical applications of MnO in high performance LIBs.

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“…Remarkably, the discharge voltage plateau shifts to 0.45 V after the first cycle, which is attributed to the improved reaction kinetics and the formation of metal nanoparticles and Li 2 O. [11,45,46,[50][51][52][53] The content of carbon is an important parameter that affects the electrochemical performance of the obtained composite. Note that the low CE at initial cycles is probably related to the inevitable formation of SEI layer and electrolyte decomposition.…”

Section: Resultsmentioning

confidence: 99%

Hierarchically Pomegranate‐Like MnO@porous Carbon Microspheres as an Enhanced‐Capacity Anode for Lithium‐Ion Batteries

Gao

Huang

et al. 2019

ChemElectroChem

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Transition-metal oxides have attracted much attention as promising anode materials, owing to high theoretical specific capacity for lithium-ion batteries (LIBs). However, rapid performance degradation derived from poor electrical conductivity and drastic volume changes during the repeated lithium insertion/ extraction processes has limited their practical applications. In this work, we design and prepare pomegranate-like microspheres of nano-sized MnO particles with gaps among them as the core and porous carbon as the shell (designated as PCMS@MnO) by using a facile three-step process. In such unique PCMS@MnO, the porous carbon shell from phenolic resin is beneficial for the electronic conductivity and wettability, whereas the nano-sized MnO particles with gaps among them confined in the porous carbon shell can effectively prevent aggregation and pulverization of active materials. As an anode material for LIBs, the PCMS@MnO with a carbon content of about 12 wt % exhibits remarkably high reversible capability (935 mAh g À 1 at 100 mA g À 1 ), outstanding rate performance, and superior cycling stability (527 mAh g À 1 of 2000 mA g À 1 after 2000 cycles). Our results suggest a great potential of pomegranate-like transition-metal oxide-based composites as anode materials in high-performance LIBs.

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Hierarchical three-dimensional MnO nanorods/carbon anodes for ultralong-life lithium-ion batteries

Abstract: N-Doped carbon network encapsulated MnO nanorods demonstrate 95% capacity retention at a current density of 4000 mA g−1for 3000 cycles. In this case, almost no pulverization or size variation of the nanorods can be observed.

Cited by 88 publications

References 47 publications

Confined Sulfur in 3 D MXene/Reduced Graphene Oxide Hybrid Nanosheets for Lithium–Sulfur Battery

Confined Sulfur in 3 D MXene/Reduced Graphene Oxide Hybrid Nanosheets for Lithium–Sulfur Battery

3D Hierarchical Microballs Constructed by Intertwined MnO@N‐doped Carbon Nanofibers towards Superior Lithium‐Storage Properties

Hierarchically Pomegranate‐Like MnO@porous Carbon Microspheres as an Enhanced‐Capacity Anode for Lithium‐Ion Batteries

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