Electrochemical Performance of Hollow α-Fe2O3 Spheres as Anode Material for Lithium-ion Battery

2011 ◽  
Vol 15 (1) ◽  
pp. 1-4
Author(s):  
Zhijia Du ◽  
Shichao Zhang ◽  
Zhiming Bai ◽  
Tao Jiang ◽  
Guanrao Liu
Keyword(s):  
Electron Microscopy ◽  
Lithium Ion Battery ◽  
Anode Material ◽  
Retention Rate ◽  
Hollow Spheres ◽  
Hollow Structure ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Lithium Storage ◽  
Ion Migration

α-Fe2O3 spheres were synthesized by a facile hydrothermal method followed by a calcination step. The crystalline structure and morphology of the synthesized materials were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The morphology of the sample consisted of porous hollow spheres that ranged about hundreds of nanometers and were composed of well crystallized nanoparticles about a dozen nm. The electrochemical properties of the sample were evaluated by cyclic voltammetry (CV) and charge/discharge measurements. The discharge/charge capacities in the first cycle achieved 1336/934 mAh g-1 at the rate of 0.2 C. The reversible capacity in the 50th cycle remained 840 mAh g-1 with impressive retention rate of 90%. This good lithium storage property was probably ascribed to the porous and hollow structure and nanoscale α-Fe2O3 particles, which enlarged the surface area and shortened the pathway for lithium ion migration. The appealing electrochemical capability indicated the potential implementation of hollow Fe2O3 spheres as anode material for future lithium-ion battery.

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.

NiCo2O4 bricks as anode materials with high lithium storage property

MRS Advances ◽  
2019 ◽  
Vol 4 (33-34) ◽  
pp. 1861-1868 ◽  
Author(s):  
Hui Wang ◽  
Youning Gong ◽  
Delong Li ◽  
Qiang Fu ◽  
Chunxu Pan
Keyword(s):  
Lithium Ion Battery ◽  
Anode Material ◽  
Current Density ◽  
Large Scale ◽  
Lithium Ion ◽  
Cost Effective ◽  
Reversible Capacity ◽  
High Rate ◽  
High Porosity ◽  
Lithium Storage

ABSTRACTIn this study, a novel brick-like NiCo2O4 material was synthesized via a facile hydrothermal method. The as-prepared NiCo2O4 material possessed high porosity with the BET specific surface area of 58.33 m2/g, and its pore size distribution was in a range of 5-15 nm with a dominant pore diameter of 10.7 nm. The electrochemical performance of the NiCo2O4 was further investigated as anode material for lithium-ion battery. The NiCo2O4 anode possessed a high lithium storage capacity up to 2353.0 mAh/g at the current density of 100 mA/g. Even at the high rate of 1 A/g, a reversible capacity of ∼600 mAh/g was still retained, and an average discharge capacity of ∼1145 mAh/g could be recovered when the current density was reduced back to 150 mA/g. Due to the simple and cost-effective process, the NiCo2O4 bricks anode material shows great potential for further large-scale applications on the area of lithium-ion battery.

High lithium ion battery performance enhancement by controlled carbon coating of TiO2 hierarchically porous hollow spheres

RSC Advances ◽  
2016 ◽  
Vol 6 (74) ◽  
pp. 70485-70492 ◽  
Author(s):  
Jun Jin ◽  
Xiao-Ning Ren ◽  
Yi Lu ◽  
Xian-Feng Zheng ◽  
Hong-En Wang ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
Carbon Coating ◽  
Performance Enhancement ◽  
Hollow Spheres ◽  
Hollow Structure ◽  
Lithium Ion ◽  
Carbon Layer ◽  
Lithium Storage ◽  
Hierarchically Porous ◽  
Carbon Hollow Spheres

Hierarchical TiO2/carbon hollow spheres have been designed and prepared for enhanced lithium storage due to the synergy of the hollow structure, carbon layer and newly formed numerous ∼5 nm Li2Ti2O4 on the surface of the TiO2 nanocrystals.

Two-dimensional MoN@N-doped carbon hollow spheres as an anode material for high performance lithium-ion battery

2019 ◽  
Vol 295 ◽  
pp. 246-252 ◽  
Author(s):  
Jianbiao Wang ◽  
Chengyu Yang ◽  
Jingjing Wang ◽  
Lijing Han ◽  
Mingdeng Wei
Keyword(s):  
Lithium Ion Battery ◽  
Anode Material ◽  
High Performance ◽  
Hollow Spheres ◽  
Lithium Ion ◽  
Two Dimensional ◽  
Carbon Hollow Spheres

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.

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.

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 Fe3O4 Hollow Nanosphere-Coated Spherical-Graphite Composites: A High-Rate Capacity and Ultra-Long Cycle Life Anode Material for Lithium Ion Batteries

Nanomaterials ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 996 ◽  
Author(s):  
Jiang ◽  
Yan ◽  
Du ◽  
Kang ◽  
Du ◽  
...  
Keyword(s):  
Anode Material ◽  
Specific Capacity ◽  
High Capacity ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
High Rate ◽  
Lithium Storage ◽  
Synthesis Strategy ◽  
Spherical Graphite ◽  
Fe3o4 Nanospheres

The spherical-graphite/Fe3O4 composite has been successfully fabricated by a simple two-step synthesis strategy. The oxygenous functional groups between spherical-graphite and Fe3O4 benefit the loading of hollow Fe3O4 nanospheres. All of the composites as anodes for half cells show higher lithium storage capacities and better rate performances in comparison with spherical-graphite. The composite containing 39 wt% of hollow Fe3O4 nanospheres exhibits a high reversible capacity of 806 mAh g−1 up to 200 cycles at 0.5 A g−1. When cycled at a higher current density of 2 A g−1, a high charge capacity of 510 mAh g−1 can be sustained, even after 1000 long cycles. Meanwhile, its electrochemical performance for full cells was investigated. When matching with LiCoO2 cathode, its specific capacity can remain at 137 mAh g−1 after 100 cycles. The outstanding lithium storage performance of the spherical-graphite/Fe3O4 composite may depend on the surface modification of high capacity hollow Fe3O4 nanospheres. This work indicates that the spherical-graphite/Fe3O4 composite is one kind of prospective anode material in future energy storage fields.

A multilayered sturdy shell protects silicon nanoparticle Si@void C@TiO2 as an advanced lithium ion battery anode

2021 ◽  
Vol 23 (6) ◽  
pp. 3934-3941
Author(s):  
Li Hou ◽  
Ruiwen Cui ◽  
Shuangsheng Xiong ◽  
Xinyu Jiang ◽  
Dong Wang ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion Battery ◽  
Anode Material ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Cycle Stability ◽  
Silicon Nanoparticle ◽  
Component Structure ◽  
High Reversible Capacity ◽  
Battery Anode

A functional double layer Si-based multi-component structure Si@void C@TiO2 was designed as anode material for lithium-ion batteries with high reversible capacity and long cycle stability.

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