Preparation and Electrochemical Properties of LiMn2O4 Nanofibers via Electrospinning for Lithium Ion Batteries

2012 ◽  
Vol 562-564 ◽  
pp. 799-802 ◽  
Author(s):  
Shuai Liu ◽  
Yun Ze Long ◽  
Hong Di Zhang ◽  
Bin Sun ◽  
Cheng Chun Tang ◽  
...  
Keyword(s):  
Discharge Capacity ◽  
Lithium Ion ◽  
Average Diameter ◽  
Potential Range ◽  
Charge Capacity ◽  
High Discharge ◽  
High Discharge Capacity ◽  
Initial Charge ◽  
Charge Discharge ◽  
Scanning Electron

LiMn2O4 nanofibers were prepared via electrospinning and followed by calcination. The surface morphology of as-spun and pure LiMn2O4 nanofibers was characterized by a scanning electron microscope (SEM) with an average diameter of 180 nm. After calcination at 800 °C in air for 5 h, charge/discharge capacity of pure LiMn2O4 nanofibers was measured in the potential range of 3.0 to 4.3 V. Battery testing showed that LiMn2O4 have a high discharge capacity of 80 mAh/g and 85% of the initial charge capacity was maintained for 5 cycles.

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.

Lithium-Ion Battery Anode Electrochemical Properties of Si/C Composites Using Graphite and Glucose as Carbon Source

2011 ◽  
Vol 347-353 ◽  
pp. 3506-3509
Author(s):  
Xu Ma ◽  
Yu Ling Liu ◽  
Ling Long Kong ◽  
Yan Hong Ding ◽  
Jie Zhao ◽  
...  
Keyword(s):  
Electron Microscope ◽  
Carbon Source ◽  
Coulombic Efficiency ◽  
Lithium Ion ◽  
Charge Capacity ◽  
X Ray ◽  
Battery Anode ◽  
Charge Discharge ◽  
Scanning Electron ◽  
Discharge Test

Si/C composites were synthesized by using graphite and glucose as carbon source. The samples were characterized by X-ray diffractometer (XRD) and field emission scanning electron microscope(SEM). The electrochemical charge/discharge test was used to evaluate capacity and cycling stability of the composites. The first discharge and charge capacity of SGC composite using graphite and glucose as carbon source were 1661mAh/g and 1259.1 mAh/g, and the first coulombic efficiency was 75.8%. After 20 cycles, the capacity of SGC composite was 380 mAh/g and the coulombic efficiency remained over 98%.

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.

Two-Dimensional SnS2Nanoplates with Extraordinary High Discharge Capacity for Lithium Ion Batteries

2008 ◽  
Vol 20 (22) ◽  
pp. 4269-4273 ◽  
Author(s):  
Jung-wook Seo ◽  
Jung-tak Jang ◽  
Seung-won Park ◽  
Chunjoong Kim ◽  
Byungwoo Park ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Discharge Capacity ◽  
Lithium Ion ◽  
Two Dimensional ◽  
High Discharge ◽  
High Discharge Capacity

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.

Graphite/Carbon Nanofiber Composite Anode Modified with Nano Size Metal Particles for Lithium Ion Battery

2006 ◽  
Vol 510-511 ◽  
pp. 1078-1081
Author(s):  
Wen Jie Jin ◽  
Taek Rae Kim ◽  
Seung Hwan Moon ◽  
Yun Soo Lim ◽  
Myung Soo Kim
Keyword(s):  
Carbon Nanofibers ◽  
Discharge Capacity ◽  
Carbon Nanofiber ◽  
Lithium Ion ◽  
Metal Particles ◽  
Graphite Particles ◽  
Base Materials ◽  
Initial Charge ◽  
Nano Size ◽  
Charge Discharge

Carbon nanofibers and nano-size metal particles were incorporated into the surface of graphite particles. The carbon nanofibers prepared from the decomposition of ethylene over nickelcopper catalyst and the micro-size silicon particles were directly introduced into the graphite particles by mixing. Nano-size tin particles were also incorporated into the graphite particles by impregnation. The three different graphite composites were tested as anode base materials for lithium ion secondary battery. The incorporation of a certain amount of carbon nanofibers into the graphite electrode improved the cyclic performance as well as the initial charge/discharge capacity. With the introduction of silicon, the initial charge/discharge capacity increased but exhibited the bad cyclic characteristics. With the modification with tin, an improved electrochemical performance was observed in both initial charge/discharge capacity and cyclic characteristics.

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