Nickel Oxide Nanotubes: Synthesis and Electrochemical Performance for Use in Lithium Ion Batteries

2006 ◽  
Vol 6 (1) ◽  
pp. 77-81 ◽  
Author(s):  
S. A. Needham ◽  
G. X. Wang ◽  
H. K. Liu ◽  
L. Yang
Keyword(s):  
Electrochemical Performance ◽  
Nickel Oxide ◽  
Lithium Ion ◽  
Electrode System ◽  
Nanocrystalline Powder ◽  
Outer Diameter ◽  
Lithium Storage ◽  
Nanotube Bundles ◽  
Lithium Ion Cells ◽  
Template Process

Uniform and aligned Nickel Oxide (NiO) nanotube bundles have been synthesized by a template process. Individual nanotubes are 60 μm long with a 200 nm outer diameter and wall thickness of 20–30 nm. The synthesis involved forming Ni(OH)2 nanotubes that were subsequently heated to 350°C in order to fully convert the product to NiO nanotubes. NiO nanotube powder was used in lithium-ion cells for assessment of lithium storage ability and electrochemical performance. Discharge capacity of the NiO nanotube electrode was in excess of 30% higher than that of the standard NiO nanocrystalline powder electrode after 20cycles. Impedance data suggests the NiO nanotube electrode provides more controlled and sustainable Li diffusion when compared to the NiO reference powder electrode system.

Lithium storage properties of Li2MoO3 and its effect as a cathode additive in full cells

2021 ◽  
Author(s):  
Taolin Zhao ◽  
Shaokang Chen ◽  
Xingyue Gao ◽  
Yuxia Zhang
Keyword(s):  
Liquid Phase ◽  
Electrochemical Performance ◽  
Solid Phase ◽  
Specific Capacity ◽  
Lithium Ion ◽  
Phase Method ◽  
Lithium Storage ◽  
Liquid Phase Method ◽  
Cathode Additive ◽  
Storage Properties

High-performance lithium–ion batteries (LIBs) are the main development direction of future energy storage devices. However, most LIBs still face a problem of high first irreversible capacity loss. Pre-lithiation technology can increase the content of active lithium source and compensate the loss of active lithium during the first cycle. Adding lithium supplement additive to the cathode provides an effective way to improve the electrochemical performance of LIBs. Here, Li2MoO3 has been investigated as a cathode additive in the full cells. In order to optimize its preparation, Li2MoO3 has been prepared by three different methods, including solid-phase method, liquid-phase method and ultrasonic method. Based on material characterization and electrochemical performance tests, Li2MoO3 material prepared by liquid-phase method shows the best lithium storage properties and chosen as a cathode additive in the LiNi[Formula: see text]Co[Formula: see text]Mn[Formula: see text]O2/SiO@C full cells. The addition of Li2MoO3 has successfully improved the electrochemical performance of the full cell. The first discharge specific capacity increases from 103.9 mAh g[Formula: see text] to 130.4 mAh g[Formula: see text]. In short, Li2MoO3 material is a promising cathode additive for LIBs.

A Facile One-Pot Stepwise Hydrothermal Method for the Synthesis of 3D MoS2/RGO Composites with Improved Lithium Storage Properties

NANO ◽  
2019 ◽  
Vol 14 (03) ◽  
pp. 1950037 ◽  
Author(s):  
Bingning Wang ◽  
Xuehua Liu ◽  
Binghui Xu ◽  
Yanhui Li ◽  
Dan Xiu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Performance ◽  
Hydrothermal Method ◽  
Hydrothermal Treatment ◽  
Active Material ◽  
Rate Capability ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Lithium Storage ◽  
One Pot

Three-dimensional reduced graphene oxide (RGO) matrix decorated with nanoflowers of layered MoS2 (denoted as 3D MoS2/RGO) have been synthesized via a facile one-pot stepwise hydrothermal method. Graphene oxide (GO) is used as precursor of RGO and a 3D GO network is formed in the first-step of hydrothermal treatment. At the second stage of hydrothermal treatment, nanoflowers of layered MoS2 form and anchor on the surface of previously formed 3D RGO network. In this preparation, thiourea not only induces the formation of the 3D architecture at a relatively low temperature, but also works as sulfur precursor of MoS2. The synthesized composites have been investigated with XRD, SEM, TEM, Raman spectra, TGA, N2 sorption technique and electrochemical measurements. In comparison with normal MoS2/RGO composites, the 3D MoS2/RGO composite shows improved electrochemical performance as anode material for lithium-ion batteries. A high reversible capacity of 930[Formula: see text]mAh[Formula: see text][Formula: see text][Formula: see text]g[Formula: see text] after 130 cycles under a current density of 200[Formula: see text]mA[Formula: see text][Formula: see text][Formula: see text]g[Formula: see text] as well as good rate capability and superior cyclic stability have been observed. The superior electrochemical performance of the 3D MoS2/RGO composite as anode active material for lithium-ion battery is ascribed to its robust 3D structures, enhanced surface area and the synergistic effect between graphene matrix and the MoS2 nanoflowers subunit.

A metal–organic-framework approach to engineer hollow bimetal oxide microspheres towards enhanced electrochemical performances of lithium storage

2019 ◽  
Vol 48 (6) ◽  
pp. 2019-2027 ◽  
Author(s):  
Weiwei Sun ◽  
Si Chen ◽  
Yong Wang
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Metal Organic Framework ◽  
Hollow Microsphere ◽  
Lithium Ion ◽  
Electrochemical Performances ◽  
Lithium Storage ◽  
Excellent Electrochemical Performance ◽  
Framework Approach ◽  
Metal Organic

A MOF-derived approach is used to fabricate a Fe–Mn–O/C hollow microsphere anode, which delivers excellent electrochemical performance for lithium-ion batteries.

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.

Al-doped VO2(B) nanobelts as cathode material with enhanced electrochemical properties for lithium-ion batteries

2018 ◽  
Vol 11 (04) ◽  
pp. 1850068 ◽  
Author(s):  
Changlei Niu
Keyword(s):  
Electrochemical Performance ◽  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Valence State ◽  
Electrode Materials ◽  
High Capacity ◽  
Lithium Ion ◽  
Lithium Storage ◽  
Free Standing ◽  
Lattice Volume

Aluminium has shown its superiority in stabilization of the monoclinic VO2(B) in free-standing nanobelts. In this paper, aluminium-doped VO2(B) nanobelts are successfully fabricated by a facile one-step hydrothermal method and used as cathode for lithium-ion battery. XPS results show that Al-doping promotes the formation of high valence state of vanadium in VO2(B) nanobelts. Due to the accommodation of valence state of vanadium and lattice volume, Al-doped VO2(B) nanobelts used as the cathode material for lithium-ion batteries exhibit better lithium storage properties with high capacity of 172[Formula: see text]mAh[Formula: see text]g[Formula: see text] and cycling stability than undoped VO2(B) nanobelts. This work demonstrates that the doping of aluminium can significantly enhance the electrochemical performance of VO2(B), suggesting that appropriate cationic doping is an efficient path to improve the electrochemical performance of electrode materials.

scholarly journals A review of laser electrode processing for development and manufacturing of lithium-ion batteries

Nanophotonics ◽  
2018 ◽  
Vol 7 (3) ◽  
pp. 549-573 ◽  
Author(s):  
Wilhelm Pfleging
Keyword(s):  
Electrochemical Performance ◽  
Thick Film ◽  
Laser Annealing ◽  
Electrode Materials ◽  
Positive Impact ◽  
Three Dimensional ◽  
Lithium Ion ◽  
High Energy ◽  
Active Surface Area ◽  
Lithium Ion Cells

AbstractLaser processes for cutting, annealing, structuring, and printing of battery materials have a great potential in order to minimize the fabrication costs and to increase the electrochemical performance and operational lifetime of lithium-ion cells. Hereby, a broad range of applications can be covered such as micro-batteries, mobile applications, electric vehicles, and stand-alone electric energy storage devices. Cost-efficient nanosecond (ns)-laser cutting of electrodes was one of the first laser technologies which were successfully transferred to industrial high-energy battery production. A defined thermal impact can be useful in electrode manufacturing which was demonstrated by laser annealing of thin-film electrodes for adjusting of battery active crystalline phases or by laser-based drying of composite thick-film electrodes for high-energy batteries. Ultrafast or ns-laser direct structuring or printing of electrode materials is a rather new technical approach in order to realize three-dimensional (3D) electrode architectures. Three-dimensional electrode configurations lead to a better electrochemical performance in comparison to conventional 2D one, due to an increased active surface area, reduced mechanical tensions during electrochemical cycling, and an overall reduced cell impedance. Furthermore, it was shown that for thick-film composite electrodes an increase of electrolyte wetting could be achieved by introducing 3D micro-/nano-structures. Laser structuring can turn electrodes into superwicking. This has a positive impact regarding an increased battery lifetime and a reliable battery production. Finally, laser processes can be up-scaled in order to transfer the 3D battery concept to high-energy and high-power lithium-ion cells.

A particle–carbon matrix architecture for long-term cycle stability of ZnFe2O4 anode

RSC Advances ◽  
2016 ◽  
Vol 6 (41) ◽  
pp. 35110-35117 ◽  
Author(s):  
Qiuxian Wang ◽  
Hongyun Yue ◽  
Ting Du ◽  
Wanli Zhang ◽  
Yun Qiao ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion ◽  
Carbon Matrix ◽  
Cycle Stability ◽  
Lithium Ion Cells

A particle–carbon matrix architecture of ZnFe2O4 exhibited good electrochemical performance as an anode in lithium-ion cells.

Hollow nanoparticle-assembled hierarchical NiCo2O4 nanofibers with enhanced electrochemical performance for lithium-ion batteries

2020 ◽  
Vol 7 (21) ◽  
pp. 4101-4112
Author(s):  
Chen Han ◽  
Wen-Qiang Cao ◽  
Mao-Sheng Cao
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Electrospun Nanofibers ◽  
Electrochemical Activity ◽  
Lithium Storage ◽  
Enhanced Electrochemical Performance ◽  
Storage Properties

Hollow NiCo2O4 nanoparticle-assembled electrospun nanofibers showed tailorable electrochemical activity and tunable lithium storage properties.

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