Graphene-wrapped sulfur-based composite cathodes: ball-milling synthesis and high discharge capacity

RSC Advances ◽  
2014 ◽  
Vol 4 (89) ◽  
pp. 48438-48442 ◽  
Author(s):  
Zhong Su ◽  
Chenglong Gao ◽  
Hanlin Li ◽  
Sanjay Nanda ◽  
Chao Lai ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Ball Milling ◽  
Discharge Capacity ◽  
Large Scale ◽  
Electrode Materials ◽  
Cycle Performance ◽  
High Discharge ◽  
High Discharge Capacity ◽  
Composite Cathodes ◽  
Good Consistency

A graphene-wrapped sulfur/carbon nanotubes composite is prepared via a ball-milling route, which can help realize the large-scale synthesis of electrode materials with good consistency. The obtained composite shows a high discharge capacity and good cycle performance.

Synthesis and Characterization of Lithiated Nickel Based Metal Oxides as Positive Electrode Materials for Lithium Ion Batteries

1999 ◽  
Vol 575 ◽  
Author(s):  
S. Fujitani ◽  
H. Fujimoto ◽  
T. Nohma ◽  
K. Nishio
Keyword(s):  
Metal Oxides ◽  
Lithium Ion Batteries ◽  
Discharge Capacity ◽  
Electrode Materials ◽  
Lithium Ion ◽  
Cycle Performance ◽  
High Discharge Capacity ◽  
Discharge Cycle ◽  
The Difference ◽  
Charge Discharge

ABSTRACTLiNi1−xCoxO2(x=0.2, 0.3, 0.4) was synthesized through a sintering process from two different types of source materials of nickel and cobalt, namely each respective hydroxide and oxide, and composite hydroxide. Influence of the difference on charge-discharge characteristics, crystal structure and distribution of the metal elements was investigated.The composite hydroxides formulated in Ni1−xCox(OH)2 as the source material brought better homogenized composite lithiated nickel based metal oxides exhibiting the larger specific discharge capacity. Further modification of LiNi0.6Co0.4)2 by manganese through sintering from the composite hydroxide including manganese brought a good charge-discharge cycle performance as well as a high discharge capacity of 160mAh/g level.A cylindrical test cell of 18mm in diameter and 65mm in height using the LiNi0.6Co0.3Mn0.1O2 exhibited discharge capacity of 1700mAh which is larger than that using LiCoO2, and also exhibited a competitive charge-discharge cycle performance to commercialized lithium ion batteries.

Connecting carbon nanotubes to polyoxometalate clusters for engineering high-performance anode materials

2014 ◽  
Vol 16 (36) ◽  
pp. 19668-19673 ◽  
Author(s):  
Wei Chen ◽  
Lujiang Huang ◽  
Jun Hu ◽  
Tengfei Li ◽  
Feifei Jia ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Electronic Properties ◽  
Discharge Capacity ◽  
Anode Materials ◽  
High Performance ◽  
Covalent Modification ◽  
Capacity Retention ◽  
High Discharge ◽  
High Discharge Capacity ◽  
Structural And Electronic Properties

Carbon nanotubes (CNTs) possess excellent structural and electronic properties and have been widely investigated as anode materials. Covalent modification of carbon nanotubes (CNTs) with organosilica-containing polyoxometalate (POM) leads to the formation of the nanocomposite CNTs–SiW11 with high discharge capacity, good capacity retention and cycling stability.

scholarly journals dual-ion charge-discharge behaviors of Na-NiNc and NiNc-NiNc batteries

2021 ◽  
Author(s):  
Jinkwang Hwang ◽  
Rika Hagiwara ◽  
Hiroshi Shinokubo ◽  
Ji-Young Shin
Keyword(s):  
Discharge Capacity ◽  
Electrode Material ◽  
High Stability ◽  
Coulombic Efficiency ◽  
Active Electrode ◽  
High Discharge ◽  
High Discharge Capacity ◽  
Charge Discharge ◽  
High Coulombic Efficiency

Dual-ion sodium-organic secondary batteries were provided with antiaromatic porphyrinoid, NiNc as an active electrode material, which implemented inherent charge-discharge behaviors with high discharge capacity, high stability, high Coulombic efficiency with...

Carbon-coated β-MnO2 for cathode of lithium-ion battery

2020 ◽  
Vol 4 (4) ◽  
pp. 1704-1711
Author(s):  
Zige Tai ◽  
Ming Shi ◽  
Wei Zhu ◽  
Xin Dai ◽  
Yanfei Xin ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
Discharge Capacity ◽  
Lithium Ion ◽  
High Discharge ◽  
High Discharge Capacity ◽  
Carbon Coated

We prepared carbon-coated β-MnO2 for the cathode of a lithium-ion battery with high discharge capacity.

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.

Surface Treatment of the Lithium Boron Oxide Coated LiMn2O4 Cathode Material in Li-Ion Battery

2007 ◽  
Vol 280-283 ◽  
pp. 671-676 ◽  
Author(s):  
Hong Wei Chan ◽  
Jenq Gong Duh ◽  
Shyang Roeng Sheen
Keyword(s):  
Particle Size ◽  
Cathode Material ◽  
Discharge Capacity ◽  
Average Particle Size ◽  
Lithium Ion ◽  
Cyclic Test ◽  
Average Particle ◽  
Laser Scattering ◽  
High Discharge ◽  
High Discharge Capacity

Surface modification on the electrode has a vital impact on lithium-ion batteries, and it is essential to probe the mechanism of the modified film on the surface of the electrode. In this study, a Li2O-2B2O3 film was coated on the surface of the cathode material by solution method. The cathode powders derived from co-precipitation method were calcined with various weight percent of the surface modified glass to form fine powder of single spinel phase with different particle size, size distribution and morphology. The thermogravimetry/differential thermal analysis was used to evaluate the appropriate heat treatment temperature. The structure was confirmed by the X-ray diffractometer along with the composition measured by the electron probe microanalyzer. From the field emission scanning electron microscope image and Laser Scattering measurements, the average particle size was in the range of 7-8µm. The electrochemical behavior of the cathode powder was examined by using two-electrode test cells consisted of a cathode, metallic lithium anode, and an electrolyte of 1M LiPF6. Cyclic charge/discharge testing of the coin cells, fabricated by both coated and un-coated cathode material, provided high discharge capacity. Furthermore, the coated cathode powder showed better cyclability than the un-coated one after the cyclic test. The introduction of the glass-coated cathode material revealed high discharge capacity and appreciably decreased the decay rate after cyclic test.

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.

Sn Negative Electrode Consists of Amorphous Structures for Sodium ion Secondary Batteries

MRS Advances ◽  
2016 ◽  
Vol 1 (6) ◽  
pp. 409-414
Author(s):  
Koki Morita ◽  
Naoki Okamoto ◽  
Takatomo Fujiyama ◽  
Takeyasu Saito ◽  
Kazuo Kondo
Keyword(s):  
Discharge Capacity ◽  
Electrode Materials ◽  
Negative Electrode ◽  
Deposition Process ◽  
Amorphous Structure ◽  
Sodium Ion ◽  
Cycle Performance ◽  
Amorphous Structures ◽  
High Theoretical Capacity ◽  
Number Of Cycles

ABSTRACTTin(Sn) and its alloys have been attracting attentions as a negative electrode material for sodium-ion secondary batteries with high theoretical capacity (Na15Sn4, ca. 847 mAh/g) and high electromotiveforce. There still remains the issue as regards the discharge capacity decrease with increasing the number of cycles. In order to improve cycle performance, there are many studies such as using Sn-Ni alloy, however, using Sn based alloy as negative electrode materials and it suffer from the disadvantage of lowering of discharge capacity. In this study, a deposition process for making Sn film which consists of amorphous structure for negative electrode of sodium ion secondary batteries utilizing electordeposition from aqueous bath was developed. The effect of additives on the surface morphology and microstructure of Sn film was investigated. Furthermore, we evaluated the effect of amorphous structure in the Sn film on cycle performance of the Sn negative electrode. Sn film has a good cycle characteristic (>50 cycles) and discharge capacity (> 400 mAh/g). Amorphous structure in the Sn film showed a microscopic effect on the volume change by sodiation and desodiation.

Sign in / Sign up

Export Citation Format

Share Document