scholarly journals Synthesis of the ZnO@ZnS Nanorod for Lithium-Ion Batteries

Energies ◽  
2018 ◽  
Vol 11 (8) ◽  
pp. 2117 ◽  
Author(s):  
Haipeng Li ◽  
Jiayi Wang ◽  
Yan Zhao ◽  
Taizhe Tan
Keyword(s):  
Lithium Ion Batteries ◽  
Solvothermal Method ◽  
Synergetic Effect ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Cycle Stability ◽  
Ion Diffusion ◽  
High Discharge ◽  
High Discharge Capacity ◽  
A Current

The ZnO@ZnS nanorod is synthesized by solvothermal method as an anode material for lithium ion batteries. ZnS is deposited on ZnO and assembles in nanorod geometry successfully. The nanosized rod structure supports ion diffusion by substantially reducing the ion channel. The close-linking of ZnS and ZnO improves the synergetic effect. ZnS is in the middle of the ZnO core and the external environment, which would greatly relieve the volume change of the ZnO core during the Li+ intercalation/de-intercalation processes; therefore, the ZnO@ZnS nanorod is helpful in maintaining excellent cycle stability. The ZnO@ZnS nanorod shows a high discharge capacity of 513.4 mAh g−1 at a current density of 200 mA g−1 after 100 cycles, while a reversible capacity of 385.6 mAh g−1 is achieved at 1000 mA g−1.

Molybdate flux growth of idiomorphic Li(Ni1/3Co1/3Mn1/3)O2 single crystals and characterization of their capabilities as cathode materials for lithium-ion batteries

2016 ◽  
Vol 4 (19) ◽  
pp. 7289-7296 ◽  
Author(s):  
T. Kimijima ◽  
N. Zettsu ◽  
K. Yubuta ◽  
K. Hirata ◽  
K. Kami ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Single Crystals ◽  
Discharge Capacity ◽  
Cathode Materials ◽  
Lithium Ion ◽  
Flux Growth ◽  
High Discharge ◽  
High Discharge Capacity ◽  
Highly Dispersed

Highly dispersed primary Li(Ni1/3Co1/3Mn1/3)O2 crystals, which showed high discharge capacity at a high C-rate, were grown from a Li2MoO4 flux.

scholarly journals Hierarchical Porous MoS2/C Nanospheres Self-Assembled by Nanosheets with High Electrochemical Energy Storage Performance

2020 ◽  
Vol 15 (1) ◽  
Author(s):  
Hongdong Liu ◽  
Ye Lin ◽  
Lei Zhang
Keyword(s):  
Lithium Ion ◽  
Reversible Capacity ◽  
Interlayer Spacing ◽  
Carbon Layer ◽  
Diffusion Resistance ◽  
Ion Diffusion ◽  
Carbon Nanospheres ◽  
Volumetric Expansion ◽  
Hierarchical Porous ◽  
A Current

Abstract To overcome the deficiency of the volume expansion of MoS2 as the anode material for lithium-ion batteries (LIBs), an effective strategy was developed to design hierarchical porous MoS2/carbon nanospheres via a facile, easy-operated hydrothermal method followed by annealing. FESEM and TEM images clearly showed that nanospheres are composed of ultra-thin MoS2/C nanosheets coated with carbon layer and possess an expanded interlayer spacing of 0.98 nm. As anodes for LIBs, MoS2/carbon nanospheres deliver an initial discharge capacity of 1307.77 mAh g−1 at a current density of 0.1 A g−1. Moreover, a reversible capacity of 612 mAh g−1 was obtained even at 2 A g−1 and a capacity retention of 439 mAh g−1 after 500 cycles at 1 A g−1. The improved electrochemical performance is ascribed to the hierarchical porous structure as well as the intercalation of carbon into lattice spacing of MoS2, which offers fast channels for ion/electron transport, relieves the influence of volume change and increases electrical conductivity of electrode. Meanwhile, the expanded interlayer spacing of MoS2 in MoS2/C can decrease the ion diffusion resistance and alleviate the volumetric expansion during discharge/charge cycles.

scholarly journals Carbon nanotube-wrapped Fe2O3 anode with improved performance for lithium-ion batteries

2017 ◽  
Vol 8 ◽  
pp. 649-656 ◽  
Author(s):  
Guoliang Gao ◽  
Yan Jin ◽  
Qun Zeng ◽  
Deyu Wang ◽  
Cai Shen
Keyword(s):  
Hydrothermal Synthesis ◽  
Lithium Ion Batteries ◽  
Anode Material ◽  
Electronic Conductivity ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Practical Application ◽  
Lithium Storage ◽  
Improved Performance ◽  
A Current

Metall oxides have been proven to be potential candidates for the anode material of lithium-ion batteries (LIBs) because they offer high theoretical capacities, and are environmentally friendly and widely available. However, the low electronic conductivity and severe irreversible lithium storage have hindered a practical application. Herein, we employed ethanolamine as precursor to prepare Fe2O3/COOH-MWCNT composites through a simple hydrothermal synthesis. When these composites were used as electrode material in lithium-ion batteries, a reversible capacity of 711.2 mAh·g−1 at a current density of 500 mA·g−1 after 400 cycles was obtained. The result indicated that Fe2O3/COOH-MWCNT composite is a potential anode material for lithium-ion batteries.

Multi-slice nanostructured WS2@rGO with enhanced Li-ion battery performance and a comprehensive mechanistic investigation

2015 ◽  
Vol 17 (44) ◽  
pp. 29824-29833 ◽  
Author(s):  
Honglin Li ◽  
Ke Yu ◽  
Hao Fu ◽  
Bangjun Guo ◽  
Xiang Lei ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Hybrid Structure ◽  
Li Ion Battery ◽  
Cycle Stability ◽  
Reduced Graphene ◽  
Mechanistic Investigation ◽  
Li Ion

We studied the WS2 and reduced graphene oxide hybrid structure for use as anode material in lithium ion batteries. The composite delivered a significant enhanced reversible capacity and cycle stability compared with pristine WS2.

3D-hierarchical NiO–graphene nanosheet composites as anodes for lithium ion batteries with improved reversible capacity and cycle stability

RSC Advances ◽  
2012 ◽  
Vol 2 (8) ◽  
pp. 3410 ◽  
Author(s):  
Liqi Tao ◽  
Jiantao Zai ◽  
Kaixue Wang ◽  
Yihang Wan ◽  
Haojie Zhang ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Cycle Stability ◽  
Graphene Nanosheet

Retracted Article: In situ nano-coating on Li1.2Mn0.52Ni0.13Co0.13O2 with a layered@spinel@coating layer heterostructure for lithium-ion batteries

2015 ◽  
Vol 3 (42) ◽  
pp. 21290-21297 ◽  
Author(s):  
Bing Li ◽  
Chao Li ◽  
Jijun Cai ◽  
Jinbao Zhao
Keyword(s):  
Lithium Ion Batteries ◽  
Discharge Capacity ◽  
Coating Layer ◽  
Lithium Ion ◽  
Layered Oxides ◽  
High Discharge ◽  
High Discharge Capacity ◽  
Nano Coating ◽  
Retracted Article

Lithium-rich manganese-based layered oxides with a composition of xLi2MnO3·(1 − x)LiMO2 (M = Mn, Co, Ni, etc.) are attractive, due to their high discharge capacity.

Mg doped Li2FeSiO4/C nanocomposites synthesized by the solvothermal method for lithium ion batteries

2017 ◽  
Vol 46 (38) ◽  
pp. 12908-12915 ◽  
Author(s):  
Ajay Kumar ◽  
O. D. Jayakumar ◽  
Jagannath Jagannath ◽  
Parisa Bashiri ◽  
G. A. Nazri ◽  
...  
Keyword(s):  
Carbon Content ◽  
Lithium Ion Batteries ◽  
Discharge Capacity ◽  
Solvothermal Method ◽  
Rate Capability ◽  
Lithium Ion ◽  
Initial Discharge Capacity ◽  
Cycle Stability ◽  
Initial Discharge ◽  
Mg Doped

Despite having the same carbon content, Li2Fe0.99Mg0.01SiO4/C delivered the highest initial discharge capacity and also exhibited the best rate capability and cycle stability.

MnO2/Graphene Nanocomposite for Use in High Performance Lithium-Ion Batteries

2013 ◽  
Vol 709 ◽  
pp. 157-160 ◽  
Author(s):  
Xiao Yi Zhu ◽  
Jian Jiang Li ◽  
Xi Lin She ◽  
Lin Hua Xia
Keyword(s):  
Lithium Ion Batteries ◽  
High Performance ◽  
Graphene Nanosheets ◽  
Synergetic Effect ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Lithium Storage ◽  
Hydrothermal Route ◽  
Graphene Nanocomposites ◽  
Mno2 Nanoparticles

A facile hydrothermal route has been developed to prepare MnO2/graphene nanocomposites and MnO2 nanoparticles are uniformly anchored on graphene nanosheets. The composite were studied as the anode material for lithium-ion batteries. The surface of graphene is modified by MnO2 nanoparticles which are 10-30 nm in size and homogeneously anchor on graphene sheets. The composite exhibits superior lithium battery performance with higher reversible capacity and better cycling performance. The reversible capacity is up to 781.5 mAh g-1 at a current of 100 mA g-1 and maintains 96% after 50 cycles. The enhanced lithium storage performance is due to the synergetic effect of graphene and MnO2.

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