scholarly journals MOF-Derived ZnS Nanodots/Ti3C2Tx MXene Hybrids Boosting Superior Lithium Storage Performance

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Bin Cao ◽  
Huan Liu ◽  
Xin Zhang ◽  
Peng Zhang ◽  
Qizhen Zhu ◽  
...  
Keyword(s):  
Performance Enhancement ◽  
High Capacity ◽  
Rate Capability ◽  
Lithium Ion ◽  
Interfacial Interaction ◽  
Lithium Storage ◽  
Storage Mechanism ◽  
Storage Performance ◽  
Strong Interfacial Interaction ◽  
High Theoretical Capacity

AbstractZnS has great potentials as an anode for lithium storage because of its high theoretical capacity and resource abundance; however, the large volume expansion accompanied with structural collapse and low conductivity of ZnS cause severe capacity fading and inferior rate capability during lithium storage. Herein, 0D-2D ZnS nanodots/Ti3C2Tx MXene hybrids are prepared by anchoring ZnS nanodots on Ti3C2Tx MXene nanosheets through coordination modulation between MXene and MOF precursor (ZIF-8) followed with sulfidation. The MXene substrate coupled with the ZnS nanodots can synergistically accommodate volume variation of ZnS over charge–discharge to realize stable cyclability. As revealed by XPS characterizations and DFT calculations, the strong interfacial interaction between ZnS nanodots and MXene nanosheets can boost fast electron/lithium-ion transfer to achieve excellent electrochemical activity and kinetics for lithium storage. Thereby, the as-prepared ZnS nanodots/MXene hybrid exhibits a high capacity of 726.8 mAh g−1 at 30 mA g−1, superior cyclic stability (462.8 mAh g−1 after 1000 cycles at 0.5 A g−1), and excellent rate performance. The present results provide new insights into the understanding of the lithium storage mechanism of ZnS and the revealing of the effects of interfacial interaction on lithium storage performance enhancement.

Flexible additive-free CC@TiOxNy@SnS2 nanocomposites with excellent stability and superior rate capability for lithium-ion batteries

RSC Advances ◽  
2016 ◽  
Vol 6 (29) ◽  
pp. 24366-24372 ◽  
Author(s):  
Fengqi Lu ◽  
Qiang Chen ◽  
Yibin Wang ◽  
Yonghao Wu ◽  
Pengcheng Wei ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Hydrothermal Process ◽  
Rate Capability ◽  
Lithium Ion ◽  
Lithium Storage ◽  
Free Standing ◽  
Storage Performance ◽  
Excellent Stability

The free-standing CC@TiOxNy@SnS2 nanocomposites have been synthesized via two steps hydrothermal process and exhibited excellent lithium storage performance.

scholarly journals Lithium Sulfide as Cathode Materials for Lithium-Ion Batteries: Advances and Challenges

2020 ◽  
Vol 2020 ◽  
pp. 1-17 ◽  
Author(s):  
Luoting Zhou ◽  
Wenkui Zhang ◽  
Yangfeng Wang ◽  
Sheng Liang ◽  
Yongping Gan ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
High Capacity ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Design Strategies ◽  
Energy Storage Devices ◽  
Lithium Storage ◽  
Storage Mechanism ◽  
Lithium Sulfide

Due to the ever-growing demand for high-density energy storage devices, lithium-ion batteries with a high-capacity cathode and anode are thought to be the next-generation batteries for their high energy density. Lithium sulfide (Li2S) is considered the promising cathode material for its high theoretical capacity, high melting point, affordable volume expansion, and lithium composition. This review summarizes the activation and lithium storage mechanism of Li2S cathodes. The design strategies in improving the electrochemical performance are highlighted. The application of the Li2S cathode in full cells of lithium-ion batteries is discussed. The challenges and new directions in commercial applications of Li2S cathodes are also pointed out.

Sulfurization synthesis of a new anode material for Li-ion batteries: understanding the role of sulfurization in lithium ion conversion reactions and promoting lithium storage performance

2019 ◽  
Vol 7 (37) ◽  
pp. 21270-21279 ◽  
Author(s):  
Yanmin Qin ◽  
Zhongqing Jiang ◽  
Liping Guo ◽  
Jianlin Huang ◽  
Zhong-Jie Jiang ◽  
...  
Keyword(s):  
Anode Material ◽  
High Capacity ◽  
Lithium Ion ◽  
Li Ion Batteries ◽  
Lithium Storage ◽  
Storage Performance ◽  
Carbon Coated ◽  
Li Ion ◽  
Good Cycling Stability

N, S co-doped carbon coated MnOS (MnOS@NSC) has been demonstrated to be a potential anode material for LIBs with high capacity, good cycling stability and excellent rate performance.

Interlayer expansion of few-layered Mo-doped SnS2 nanosheets grown on carbon cloth with excellent lithium storage performance for lithium ion batteries

2017 ◽  
Vol 5 (8) ◽  
pp. 4075-4083 ◽  
Author(s):  
Qiang Chen ◽  
Fengqi Lu ◽  
Ying Xia ◽  
Hai Wang ◽  
Xiaojun Kuang
Keyword(s):  
Lithium Ion Batteries ◽  
Discharge Capacity ◽  
Rate Capability ◽  
Lithium Ion ◽  
Cycling Performance ◽  
Carbon Cloth ◽  
Initial Discharge Capacity ◽  
Lithium Storage ◽  
Storage Performance ◽  
Initial Discharge

Mo-doped SnS2 nanosheets supported on carbon cloth are synthesized. The nanosheets, as additive-free integrated electrodes for LIBs, exhibit a high initial discharge capacity, superior cycling performance and rate capability.

Highly stable GeOx@C core–shell fibrous anodes for improved capacity in lithium-ion batteries

2015 ◽  
Vol 3 (39) ◽  
pp. 19907-19912 ◽  
Author(s):  
Meng Li ◽  
Dan Zhou ◽  
Wei-Li Song ◽  
Xiaogang Li ◽  
Li-Zhen Fan
Keyword(s):  
Lithium Ion Batteries ◽  
Rate Capability ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Core Shell ◽  
Lithium Storage ◽  
Storage Performance ◽  
Facile Fabrication ◽  
Hollow Carbon ◽  
Fiber Electrode

We demonstrate a facile fabrication in which encapsulation of GeOx nanoparticles into hollow carbon shells is achieved through co-axial electrospinning. The resultant GeOx@C core–shell fiber electrode exhibits excellent lithium storage performance, with stable reversible capacity and excellent rate capability.

scholarly journals Integrating TiO2/SiO2 into Electrospun Carbon Nanofibers towards Superior Lithium Storage Performance

Nanomaterials ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 68 ◽  
Author(s):  
Wenxing Liu ◽  
Tianhao Yao ◽  
Sanmu Xie ◽  
Yiyi She ◽  
Hongkang Wang
Keyword(s):  
Carbon Nanofibers ◽  
Anode Materials ◽  
Rate Capability ◽  
Lithium Ion ◽  
High Rate ◽  
Cycle Stability ◽  
High Rate Capability ◽  
Lithium Storage ◽  
Storage Performance ◽  
The Poor

In order to overcome the poor electrical conductivity of titania (TiO2) and silica (SiO2) anode materials for lithium ion batteries (LIBs), we herein report a facile preparation of integrated titania–silica–carbon (TSC) nanofibers via electrospinning and subsequent heat-treatment. Both titania and silica are successfully embedded into the conductive N-doped carbon nanofibers, and they synergistically reinforce the overall strength of the TSC nanofibers after annealing (Note that titania–carbon or silica–carbon nanofibers cannot be obtained under the same condition). When applied as an anode for LIBs, the TSC nanofiber electrode shows superior cycle stability (502 mAh/g at 100 mA/g after 300 cycles) and high rate capability (572, 518, 421, 334, and 232 mAh/g each after 10 cycles at 100, 200, 500, 1000 and 2000 mA/g, respectively). Our results demonstrate that integration of titania/silica into N-doped carbon nanofibers greatly enhances the electrode conductivity and the overall structural stability of the TSC nanofibers upon repeated lithiation/delithiation cycling.

Electrochemical performance of α-MoO3–In2O3 core–shell nanorods as anode materials for lithium-ion batteries

2015 ◽  
Vol 3 (9) ◽  
pp. 5083-5091 ◽  
Author(s):  
Qiang Wang ◽  
Jing Sun ◽  
Qi Wang ◽  
De-an Zhang ◽  
Lili Xing ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Anode Materials ◽  
Rate Capability ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Core Shell ◽  
Lithium Storage ◽  
High Reversible Capacity ◽  
Storage Performance ◽  
Good Rate Capability

α-MoO3–In2O3 core–shell nanorods have been synthesized by a hydrothermal method. As anodes of LIBs, they exhibit excellent lithium storage performance with high reversible capacity, excellent cyclability and good rate capability.

scholarly journals The Enhanced Lithium-Storage Performance for MnO Nanoparticles Anchored on Electrospun Nitrogen-Doped Carbon Fibers

Nanomaterials ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 733 ◽  
Author(s):  
Rui Zhang ◽  
Xue Dong ◽  
Lechao Peng ◽  
Wenjun Kang ◽  
Haibo Li
Keyword(s):  
Anode Material ◽  
Carbon Fibers ◽  
High Capacity ◽  
Rate Capability ◽  
Lithium Ion ◽  
Diffusion Path ◽  
Discharge Process ◽  
Lithium Storage ◽  
Li Ion ◽  
Nitrogen Doped Carbon

Manganese monoxide (MnO) is a promising anode material in the lithium-ion battery for its high capacity, low operation potential, and environmental benignity. However, its application is impeded by poor rate capability and rapid capacity fading. In this work, a MnO/carbon hybrid material, in which small-sized MnO nanoparticles are tightly anchored on carbon fibers (denoted as MnO@CFs), was prepared by annealing the electrospun precursor fibers at 650 °C. When applied as the anode material of the Li-ion battery, the small size of MnO shortens the Li-ion diffusion path, and the carbon fibers not only greatly improve the conductivity but also efficiently buffer the MnO structure strain during the charge–discharge process, endowing the MnO@CFs electrode with a good rate capability (185 mAh g−1 at 5 A g−1) and cyclic stability (406 mAh g−1 after 500 cycles at 1.0 A g−1).

scholarly journals Good lithium storage performance of Fe2SiO4 as an anode material for secondary lithium ion batteries

RSC Advances ◽  
2017 ◽  
Vol 7 (8) ◽  
pp. 4437-4443 ◽  
Author(s):  
Peisheng Guo ◽  
Chengxin Wang
Keyword(s):  
Electrochemical Properties ◽  
Lithium Ion Batteries ◽  
Anode Material ◽  
Specific Capacity ◽  
Rate Capability ◽  
Lithium Ion ◽  
Cycle Life ◽  
Lithium Storage ◽  
Half Cell ◽  
Storage Performance

The electrochemical properties of Fe2SiO4 particles were systematically investigated and our results proved that fayalite presents great specific capacity, superior rate capability and long battery cycle life when tested in the form of a half-cell.

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