scholarly journals The rational design of hierarchical MoS2 nanosheet hollow spheres sandwiched between carbon and TiO2@graphite as an improved anode for lithium-ion batteries

2019 ◽  
Vol 1 (5) ◽  
pp. 1957-1964 ◽  
Author(s):  
Faze Wang ◽  
Fanggang Li ◽  
Maojun Zheng ◽  
Yanbo Li ◽  
Li Ma
Keyword(s):  
Lithium Ion Batteries ◽  
Amorphous Carbon ◽  
Hollow Sphere ◽  
Rational Design ◽  
Specific Capacity ◽  
Hollow Spheres ◽  
Lithium Ion ◽  
Carbon Shell ◽  
Lithium Storage ◽  
Mos2 Nanosheet

Hierarchical MoS2 nanosheet hollow sphere is sandwiched by graphite and amorphous carbon shell, showing high reversible specific capacity and cycling stability for lithium storage.

Rational design of Ni/Ni2P heterostructures encapsulated in 3D porous carbon networks for improved lithium storage

2019 ◽  
Vol 48 (42) ◽  
pp. 16000-16007 ◽  
Author(s):  
Jiapeng He ◽  
Lu Shen ◽  
Cuiping Wu ◽  
Can Guo ◽  
Qingpeng Wang ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Porous Carbon ◽  
Rational Design ◽  
Specific Capacity ◽  
Lithium Ion ◽  
Cycle Life ◽  
Lithium Storage ◽  
High Specific Capacity ◽  
Carbon Networks

Ni/Ni2P heterostructures encapsulated in 3D porous carbon networks deliver high specific capacity and good cycle life as the anode for lithium ion batteries.

Constructing zigzag-like hollow mesoporous nanospheres MoO2/C with superior lithium storage performance

2021 ◽  
Author(s):  
Wencai Zhao ◽  
Y.F. Yuan ◽  
S.M. Yin ◽  
Gaoshen Cai ◽  
S.Y. Guo
Keyword(s):  
Reaction Kinetics ◽  
Discharge Capacity ◽  
Amorphous Carbon ◽  
Electronic Conductivity ◽  
Specific Capacity ◽  
Rate Capability ◽  
Lithium Ion ◽  
Structure Design ◽  
Structure Stability ◽  
Lithium Storage

Abstract Hollow mesoporous nanospheres MoO2/C are successfully constructed through metal chelating reaction between molybdenum acetylacetone and glycerol as well as the Kirkendall effect induced by diammonium hydrogen phosphate. MoO2 nanoparticles coupled by amorphous carbon are assembled to unique zigzag-like hollow mesoporous nanosphere with large specific surface area of 147.7 m2 g-1 and main pore size of 8.7 nm. The content of carbon is 9.1%. As anode material for lithium-ion batteries, the composite shows high specific capacity and excellent cycling performance. At 0.2 A g-1, average discharge capacity stabilizes at 1092 mAh g-1. At 1 A g-1 after 700 cycles, the discharge capacity still reaches 512 mAh g-1. Impressively, the composite preserves intact after 700 cycles. Even at 5 A g-1, the discharge capacity can reach 321 mAh g-1, exhibiting superior rate capability. Various kinetics analyses demonstrate that in electrochemical reaction, the proportion of the surface capacitive effect is higher, and the composite has relatively high diffusion coefficient of Li ions and fast faradic reaction kinetics. Excellent lithium storge performance is attributed to the synergistic effect of zigzag-like hollow mesoporous nanosphere and amorphous carbon, which improves reaction kinetics, structure stability and electronic conductivity of MoO2. The present work provides a new useful structure design strategy for advanced energy storage application of MoO2.

Synergistic effect between flake graphite and small-sized graphene in lithium storage

2021 ◽  
pp. 2150031
Author(s):  
Hai Li ◽  
Chunxiang Lu
Keyword(s):  
Synergistic Effect ◽  
Lithium Ion Batteries ◽  
Individual Component ◽  
Specific Capacity ◽  
Rate Capability ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Flake Graphite ◽  
Effective Strategy ◽  
Lithium Storage

As anode material for lithium-ion batteries, graphite has the disadvantage of relatively low specific capacity. In this work, a simple yet effective strategy to overcome the disadvantages by using a composite of flake graphite (FG) and small-sized graphene (SG) has been developed. The FG/SG composite prepared by dispersing FG and SG (90:10 w/w) in ethanol and drying delivers much higher specific capacity than that of individual component except for improved rate capability. More surprisingly, FG/SG composite delivers higher reversible capacity than its theoretical value calculated according to the theoretical capacities of graphite and graphene. Therefore, a synergistic effect between FG and SG in lithium storage is clearly discovered. To explain it, we propose a model that abundant nanoscopic cavities were formed due to physical adhesion between FG and SG and could accommodate extra lithium.

Highly stable SnO2–Fe2O3–C hollow spheres for reversible lithium storage with extremely long cycle life

Nanoscale ◽  
2018 ◽  
Vol 10 (9) ◽  
pp. 4370-4376 ◽  
Author(s):  
Jonghyun Choi ◽  
Won-Sik Kim ◽  
Seong-Hyeon Hong
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Hydrothermal Method ◽  
Structural Stability ◽  
Sol Gel ◽  
Hollow Spheres ◽  
Lithium Ion ◽  
Lithium Storage ◽  
Long Cycle Life

SnO2–Fe2O3–C triple-shell hollow nano-spheres are fabricated by combining the template-based sol–gel coating technique and hydrothermal method, and their electrochemical performance as an anode for lithium ion batteries (LIBs) is investigated, particularly focusing on their structural stability and long term cyclability.

3D graphene network encapsulating SnO2 hollow spheres as a high-performance anode material for lithium-ion batteries

2017 ◽  
Vol 5 (9) ◽  
pp. 4535-4542 ◽  
Author(s):  
Xiang Hu ◽  
Guang Zeng ◽  
Junxiang Chen ◽  
Canzhong Lu ◽  
Zhenhai Wen
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Material ◽  
High Performance ◽  
Hollow Spheres ◽  
Lithium Ion ◽  
Lithium Storage ◽  
3D Graphene ◽  
Storage Properties

H-SnO2@rGO with interconnected graphene encapsulating interior hollow SnO2 nanospheres is designed and fabricated, which shows outstanding lithium storage properties.

Rational design of walnut-like ZnO/Co3O4 porous nanospheres with substantially enhanced lithium storage performance

Nanoscale ◽  
2021 ◽  
Author(s):  
Yifan Zhang ◽  
Yamin Zhang ◽  
Edgar Aldama ◽  
Huitian Liu ◽  
Zhijian Sun ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Materials ◽  
Rational Design ◽  
Lithium Ion ◽  
Lithium Storage ◽  
Storage Performance

Rational fabrication and smart design of multi-component anode materials to achieve desirable reversible capacities and exceptional cyclability are significant for lithium-ion batteries (LIBs). Herein, walnut-like ZnO/Co3O4 porous nanospheres were prepared...

Facile synthesis of vanadyl acetate one-dimensional nanobelts toward a novel anode for lithium storage

2021 ◽  
Author(s):  
Ni Wen ◽  
Siyuan Chen ◽  
xiaolong Li ◽  
Ke Zhang ◽  
Jingjie Feng ◽  
...  
Keyword(s):  
Metal Oxides ◽  
Lithium Ion Batteries ◽  
Transition Metal Oxides ◽  
Anode Materials ◽  
Specific Capacity ◽  
Lithium Ion ◽  
Facile Synthesis ◽  
Lithium Storage ◽  
One Dimensional ◽  
Theoretical Specific Capacity

Transition metal oxides (TMOs) are prospective anode materials for lithium-ion batteries (LIBs) owing to their high theoretical specific capacity. Whereas, the inherent low conductivity of TMOs restricts its application. Given...

Hierarchical self-assembled Bi2S3 hollow nanotubes coated with sulfur-doped amorphous carbon as advanced anode materials for lithium ion batteries

Nanoscale ◽  
2018 ◽  
Vol 10 (28) ◽  
pp. 13343-13350 ◽  
Author(s):  
Yucheng Dong ◽  
Mingjun Hu ◽  
Zhenyu Zhang ◽  
Juan Antonio Zapien ◽  
Xin Wang ◽  
...  
Keyword(s):  
Reaction Mechanism ◽  
Lithium Ion Batteries ◽  
Anode Material ◽  
Amorphous Carbon ◽  
Anode Materials ◽  
Specific Capacity ◽  
Lithium Ion ◽  
Bismuth Sulfide ◽  
Theoretical Specific Capacity ◽  
Self Assembled

Bismuth sulfide (Bi2S3) is considered as a promising anode material for lithium ion batteries (LIBs) owing to its high theoretical specific capacity and intriguing reaction mechanism.

Polypyrrole-assisted synthesis of roselike MoS2/nitrogen-containing carbon/graphene hybrids and their robust lithium storage performances

RSC Advances ◽  
2015 ◽  
Vol 5 (77) ◽  
pp. 62624-62629 ◽  
Author(s):  
Zhiyan Guo ◽  
Yang Zhong ◽  
Zongwei Xuan ◽  
Changming Mao ◽  
Fanglin Du ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Specific Capacity ◽  
Rate Capability ◽  
Lithium Ion ◽  
Lithium Storage ◽  
High Specific Capacity

MoS2/NC/G hybrids exhibit a high specific capacity, and superior rate capability for lithium ion batteries.

Sandwich shelled TiO2@Co3O4@Co3O4/C hollow spheres as anode materials for lithium ion batteries

2021 ◽  
Author(s):  
Zheng Liu ◽  
Mengkang Yu ◽  
Xiaodan Wang ◽  
Fengyu Lai ◽  
Chao Wang ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Materials ◽  
Hollow Spheres ◽  
Lithium Ion ◽  
Lithium Storage ◽  
Tio2 Particles ◽  
Storage Performance

A sandwich shelled hollow TiO2@Co3O4@Co3O4/C composite is synthesized by consecutive coating Co3O4 nanosheets and TiO2 particles on CO3O4/C hollow spheres. The composite delivers the excellent lithium storage performance, maintaining 1081.78...

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