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.

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

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 CaF2 Coated Li1.2Mn0.56Ni0.16Co0.08O2 Microspheres with Enhanced Electrochemical Performances as Lithium Ion Battery Cathode

2021 ◽  
Vol 27 (1) ◽  
pp. 3-7
Author(s):  
Yunlong ZHOU ◽  
Chenhao ZHAO ◽  
Kaiyu LIU ◽  
Zhibiao HU ◽  
Qing XU ◽  
...  
Keyword(s):  
Surface Modification ◽  
Electrochemical Performance ◽  
Lithium Ion Battery ◽  
Discharge Capacity ◽  
Coulombic Efficiency ◽  
Lithium Ion ◽  
Coated Sample ◽  
Electrochemical Performances ◽  
Ion Conductor ◽  
High Discharge Capacity

Surface modification has been one of most effective methods to improve the electrochemical performance of lithium rich layered oxides. In this paper, the Li1.2Mn0.56Ni0.16Co0.08O2 microspheres are prepared by urea assisted combustion route, and then coated with proper amount of CaF2. XRD and SEM results show surface modification has not changed the structure of Li1.2Mn0.56Ni0.16Co0.08O2, and a uniform coating layer can be obtained. As lithium ion battery cathode, the optimal CaF2 (i.e, 2wt%) coated sample presents a high initial discharge capacity of 223 mAh·g-1 with Coulombic efficiency of 80.5% at 0.1C, which is much better than that of pristine sample. Also, a high discharge capacity of 119 mAh·g-1 can be obtained for CaF2 coated sample at 5C. The improved electrochemical performance may be attributed the formation of fast Li ion conductor on the surface supported by EIS study.

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...

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