SYNTHESIS OF SUB-MICROMETER CARBON SUPPORTED Fe3O4 HOLLOW SPHERES WITH ENHANCED LITHIUM STORAGE PROPERTIES

2013 ◽  
Vol 01 (04) ◽  
pp. 1340018
Author(s):  
DONGYANG ZHANG ◽  
HAN ZHOU ◽  
JIN LIANG ◽  
SHUJIANG DING
Keyword(s):  
Anode Materials ◽  
High Current Density ◽  
Hollow Spheres ◽  
Reversible Capacity ◽  
Hollow Microspheres ◽  
High Current ◽  
Lithium Storage ◽  
Sulfonated Polystyrene ◽  
Interesting Approach ◽  
Storage Properties

In this paper, we report an interesting approach for efficient synthesis of uniform sub-micrometer carbon supported Fe 3 O 4 hollow spheres. Fe 3 O 4 precursor was first coated on the surface of sulfonated polystyrene hollow microspheres. Then, the precursor and sulfonated polystyrene hollow microspheres were converted into Fe 3 O 4 and carbon hollow spheres when heated at 550°C in N 2 atmosphere. The obtained Fe 3 O 4 @ carbon hollow microspheres exhibit enhanced lithium storage properties compared with Fe 2 O 3 hollow spheres as anode materials, delivering a reversible capacity of 612 mA hg−1 after 50 cycles at a high current density of 400 mA g−1.

Porous Fe3O4 hollow spheres with chlorine-doped-carbon coating as superior anode materials for lithium ion batteries

RSC Advances ◽  
2015 ◽  
Vol 5 (65) ◽  
pp. 52993-52997 ◽  
Author(s):  
Hongbo Geng ◽  
Shuangshuang Li ◽  
Yue Pan ◽  
Yonggang Yang ◽  
Junwei Zheng ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Materials ◽  
Carbon Coating ◽  
Hollow Spheres ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Lithium Storage ◽  
High Reversible Capacity ◽  
Storage Performance

The PH-Fe3O4@C/Cl spheres were successfully fabricated through a novel and controllable route, which could deliver superior lithium storage performance in terms of high reversible capacity, stable cycling and rate performances.

scholarly journals ZIF-67-Derived CoSe/NC Composites as Anode Materials for Lithium-Ion Batteries

2019 ◽  
Vol 14 (1) ◽  
Author(s):  
Zongyang Li ◽  
Lian Ying Zhang ◽  
Lei Zhang ◽  
Jiamu Huang ◽  
Hongdong Liu
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Materials ◽  
Layer Structure ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Coating Structure ◽  
Lithium Storage ◽  
Chemical Coupling ◽  
High Theoretical Capacity ◽  
Storage Properties

AbstractAs a typical metal selenide, CoSe is a kind of foreground anode material for lithium-ion batteries (LIBs) because of its two-dimensional layer structure, good electrical conductivity, and high theoretical capacity. In this work, the original CoSe/N-doped carbon (CoSe/NC) composites were synthesized using ZIF-67 as a precursor, in which the CoSe nanoparticles are encapsulated in NC nanolayers and they are connected through C–Se bonds. The coating structure and strong chemical coupling make the NC nanolayers could better effectively enhance the lithium storage properties of CoSe/NC composites. As a consequence, the CoSe/NC composites deliver a reversible capacity of 310.11 mAh g−1 after 500 cycles at 1.0 A g−1. Besides, the CoSe/NC composites show a distinct incremental behavior of capacity.

Electrochemical performance and electronic properties of shell LiNi0.5Mn1.5O4 hollow spheres for lithium ion battery

2016 ◽  
Vol 09 (02) ◽  
pp. 1650027 ◽  
Author(s):  
Yongli Cui ◽  
Jiali Wang ◽  
Mingzhen Wang ◽  
Quanchao Zhuang
Keyword(s):  
Activation Energy ◽  
Electrochemical Performance ◽  
Electronic Properties ◽  
Lithium Ion Battery ◽  
Retention Rate ◽  
Hollow Spheres ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Hollow Microspheres ◽  
Cycle Stability

Shell spinel LiNi[Formula: see text]Mn[Formula: see text]O4 hollow microspheres were successfully synthesized by MnCO3 template, and characterized by XRD, SEM, and TEM. The results show that the hollow LiNi[Formula: see text]Mn[Formula: see text]O4 cathode has good cycle stability to reach 124.5, 119.8, and 96.6[Formula: see text]mAh/g at 0.5, 1, and 5 C, the corresponding retention rate of 98.1%, 98.2%, and 98.0% after 50 cycles at 20[Formula: see text]C, and the reversible capacity of 94.6[Formula: see text]mAh/g can be obtained at 1 C rate at 55[Formula: see text]C, 83.3% retention after 100 cycles. As the temperature decreases from 10[Formula: see text]C to [Formula: see text]C, the resistance of [Formula: see text] increases from 5.5 [Formula: see text] to 135 [Formula: see text], [Formula: see text] from 27 [Formula: see text] to 353.2 [Formula: see text], and [Formula: see text] from 12.7 [Formula: see text] to 73.0 [Formula: see text]. Moreover, the B constant and [Formula: see text] activation energy are 4480[Formula: see text]K and 37.22[Formula: see text]KJ/mol for the NTC spinel material, respectively.

A facile synthesis of hierarchical MoS2 nanotori with advanced lithium storage properties

2018 ◽  
Vol 42 (13) ◽  
pp. 10935-10939 ◽  
Author(s):  
Kai Xie ◽  
Zhenghao Liu ◽  
Yourong Wang ◽  
Guangsen Song ◽  
Siqing Cheng
Keyword(s):  
Rate Capability ◽  
Reversible Capacity ◽  
Cyclic Performance ◽  
Facile Synthesis ◽  
Lithium Storage ◽  
Storage Properties ◽  
Good Rate Capability

The easily prepared hierarchical MoS2 nanotori demonstrate superior reversible capacity, good rate capability and excellent cyclic performance.

On-site evolution of ultrafine ZnO nanoparticles from hollow metal–organic frameworks for advanced lithium ion battery anodes

2017 ◽  
Vol 5 (43) ◽  
pp. 22512-22518 ◽  
Author(s):  
Yiqiong Zhang ◽  
Yanbing Lu ◽  
Shi Feng ◽  
Dongdong Liu ◽  
Zhaoling Ma ◽  
...  
Keyword(s):  
Current Density ◽  
Zno Nanoparticles ◽  
High Current Density ◽  
Metal Organic Frameworks ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Cycling Performance ◽  
High Current ◽  
Metal Organic ◽  
Hollow Metal

With unique hollow frameworks decorated with well-dispersed ultrafine ZnO nanoparticles, the h-ZIF-8@ZnO hybrids exhibit good cycling performance with a reversible capacity of ∼637.9 mA h g−1 at a high current density of 1.0 A g−1 after 500 cycles.

Ni or FeO nanocrystal-integrated hollow (solid) N-doped carbon nanospheres: preparation, characterization and electrochemical properties

Nanoscale ◽  
2020 ◽  
Vol 12 (28) ◽  
pp. 15157-15168
Author(s):  
Yucang Liang ◽  
Jonathan David Oettinger ◽  
Peng Zhang ◽  
Bin Xu
Keyword(s):  
Electrochemical Properties ◽  
Lithium Ion Batteries ◽  
Anode Materials ◽  
Lithium Ion ◽  
Carbon Nanospheres ◽  
Lithium Storage ◽  
Storage Properties

N-Doped carbon nano(micro)spheres have been rationally designed, successfully synthesized and used as anode materials for lithium-ion batteries, showing excellent lithium storage properties and superior reversibility.

scholarly journals 3D Porous Ti3C2 MXene/NiCo-MOF Composites for Enhanced Lithium Storage

Nanomaterials ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 695 ◽  
Author(s):  
Yijun Liu ◽  
Ying He ◽  
Elif Vargun ◽  
Tomas Plachy ◽  
Petr Saha ◽  
...  
Keyword(s):  
High Performance ◽  
Electrode Materials ◽  
High Current Density ◽  
Composite Films ◽  
Three Dimensional ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Energy Storage Devices ◽  
Lithium Storage ◽  
Hierarchical Porous

To improve Li storage capacity and the structural stability of Ti3C2 MXene-based electrode materials for lithium-ion batteries (LIBs), a facile strategy is developed to construct three-dimensional (3D) hierarchical porous Ti3C2/bimetal-organic framework (NiCo-MOF) nanoarchitectures as anodes for high-performance LIBs. 2D Ti3C2 nanosheets are coupled with NiCo-MOF nanoflakes induced by hydrogen bonds to form 3D Ti3C2/NiCo-MOF composite films through vacuum-assisted filtration technology. The morphology and electrochemical properties of Ti3C2/NiCo-MOF are influenced by the mass ratio of MOF to Ti3C2. Owing to the interconnected porous structures with a high specific surface area, rapid charge transfer process, and Li+ diffusion rate, the Ti3C2/NiCo-MOF-0.4 electrode delivers a high reversible capacity of 402 mAh g−1 at 0.1 A g−1 after 300 cycles; excellent rate performance (256 mAh g−1 at 1 A g−1); and long-term stability with a capacity retention of 85.7% even after 400 cycles at a high current density, much higher than pristine Ti3C2 MXene. The results highlight that Ti3C2/NiCo-MOF have great potential in the development of high-performance energy storage devices.

Nickel-mediated polyol synthesis of hierarchical V2O5 hollow microspheres with enhanced lithium storage properties

2015 ◽  
Vol 3 (5) ◽  
pp. 1979-1985 ◽  
Author(s):  
Yan-Zhen Zheng ◽  
Haiyang Ding ◽  
Evan Uchaker ◽  
Xia Tao ◽  
Jian-Feng Chen ◽  
...  
Keyword(s):  
High Capacity ◽  
Hollow Microspheres ◽  
Polyol Synthesis ◽  
Li Ion Battery ◽  
Lithium Storage ◽  
Li Ion ◽  
Template Free ◽  
Superior Cycling Stability ◽  
Storage Properties ◽  
Li Storage

Hierarchical Ni–V2O5 hollow microspheres, prepared via a template-free Ni-mediated polyol process, have excellent Li storage properties as a Li-ion battery cathode (high capacity (294 mA h g−1), superior cycling stability/rate performance) due to their unique structure and low V valence state.

Synthesis of micro-sized SnO2@carbon hollow spheres with enhanced lithium storage properties

Nanoscale ◽  
2012 ◽  
Vol 4 (12) ◽  
pp. 3651 ◽  
Author(s):  
Shujiang Ding ◽  
Dongyang Zhang ◽  
Hao Bin Wu ◽  
Zhicheng Zhang ◽  
Xiong Wen (David) Lou
Keyword(s):  
Hollow Spheres ◽  
Lithium Storage ◽  
Carbon Hollow Spheres ◽  
Storage Properties
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