scholarly journals Carbon Loaded Nano-Designed Spherically High Symmetric Lithium Iron Orthosilicate Cathode Materials for Lithium Secondary Batteries

Polymers ◽  
2019 ◽  
Vol 11 (10) ◽  
pp. 1703 ◽  
Author(s):  
Diwakar Karuppiah ◽  
Rajkumar Palanisamy ◽  
Subadevi Rengapillai ◽  
Wei-Ren Liu ◽  
Chia-Hung Huang ◽  
...  
Keyword(s):  
Particle Size ◽  
Discharge Capacity ◽  
Coulombic Efficiency ◽  
Rate Performance ◽  
Initial Discharge Capacity ◽  
Lithium Secondary Batteries ◽  
Initial Discharge ◽  
The Difference ◽  
Modified Polyol Method ◽  
Lithium Iron Orthosilicate

In the present study, Li2FeSiO4 (LFS) cathode material has been prepared via a modified polyol method. The stabilizing nature of polyol solvent was greatly influenced to reduce the particle size (~50 nm) and for coating the carbon on the surface of the as-mentioned materials (~10 nm). As-prepared nano-sized Li2FeSiO4 material deliver initial discharge capacity of 186 mAh·g−1 at 1C with the coulombic efficiency of 99% and sustain up to 100 cycles with only 7 mAh·g−1 is the difference of discharge capacity from its 1st cycle to 100th cycle. The rate performance illustrates the discharge capacity 280 mAh·g−1 for lower C-rate (C/20) and 95 mAh·g−1 for higher C-rate (2C).

Fabrication of layered Ti3C2 with an accordion-like structure as a potential cathode material for high performance lithium–sulfur batteries

2015 ◽  
Vol 3 (15) ◽  
pp. 7870-7876 ◽  
Author(s):  
Xiaoqin Zhao ◽  
Min Liu ◽  
Yong Chen ◽  
Bo Hou ◽  
Na Zhang ◽  
...  
Keyword(s):  
Cathode Material ◽  
Discharge Capacity ◽  
High Performance ◽  
Coulombic Efficiency ◽  
Initial Discharge Capacity ◽  
Capacity Retention ◽  
Initial Discharge ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

L-Ti3C2 was prepared by exfoliating Ti3AlC2 in 40% HF. With sulfur-loaded L-Ti3C2 as cathodes, Li–S batteries deliver a high initial discharge capacity of 1291 mA h g−1, an excellent capacity retention of 970 mA h g−1 and coulombic efficiency of 99% after 100 cycles.

MOF-derived NiO–NiCo2O4@PPy hollow polyhedron as a sulfur immobilizer for lithium–sulfur batteries

2019 ◽  
Vol 43 (46) ◽  
pp. 18294-18303 ◽  
Author(s):  
Fengchao Xu ◽  
Bo Jin ◽  
Huan Li ◽  
Wentao Ju ◽  
Zi Wen ◽  
...  
Keyword(s):  
Discharge Capacity ◽  
Coulombic Efficiency ◽  
Cell Performance ◽  
Initial Discharge Capacity ◽  
Initial Discharge ◽  
Lithium Sulfur Batteries ◽  
Sulfur Host ◽  
Initial Coulombic Efficiency ◽  
Lithium Sulfur

A MOF-derived NiO–NiCo2O4@PPy hollow polyhedron is prepared as a sulfur host to effectively enhance cell performance. S/NiO–NiCo2O4@PPy displays a high initial discharge capacity of 963 mA h g−1 with a high initial coulombic efficiency of 95.2% at 0.2C.

scholarly journals Synthesis of Hierarchical CoO Nano/Microstructures as Anode Materials for Lithium-Ion Batteries

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Dan Qin ◽  
Peng Yan ◽  
Guangzhong Li ◽  
Yunchuang Wang ◽  
Yukuan An ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Materials ◽  
Coulombic Efficiency ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Rate Performance ◽  
Initial Discharge Capacity ◽  
Promising Alternative ◽  
Initial Discharge ◽  
A Current

Hierarchical CoO nano/microstructures are synthesized via a hydrothermal method and a subsequent annealed process. When evaluated for use in lithium-ion batteries, hierarchical CoO nano/microstructures show a high initial discharge capacity of 1370 mAh/g and a high reversible capacity of 1148 mAh/g over 20 cycles at a current density of 100 mA/g. Superior rate performance with coulombic efficiency of about 100% upon galvanostatic cycling is also revealed. The excellent electrochemical properties of hierarchical CoO nano/microstructures make it a promising alternative anode material for high power lithium-ion batteries applications.

Effect of sulfur doping on structural reversibility and cycling stability of a Li2MnSiO4 cathode material

2018 ◽  
Vol 47 (35) ◽  
pp. 12337-12344 ◽  
Author(s):  
Xia Wu ◽  
Shi-Xi Zhao ◽  
Lü-Qiang Yu ◽  
Jin-Lin Yang ◽  
Ce-Wen Nan
Keyword(s):  
Cathode Material ◽  
Discharge Capacity ◽  
Cycling Stability ◽  
Initial Discharge Capacity ◽  
Sulfur Doping ◽  
Initial Discharge ◽  
Excellent Cycling Stability

Sulfur has been successfully employed into Li2MnSiO4 and results in a high initial discharge capacity and excellent cycling stability.

An inorganic–organic nanocomposite calix[4]quinone (C4Q)/CMK-3 as a cathode material for high-capacity sodium batteries

2017 ◽  
Vol 4 (11) ◽  
pp. 1806-1812 ◽  
Author(s):  
Shibing Zheng ◽  
Jinyan Hu ◽  
Weiwei Huang
Keyword(s):  
Cathode Material ◽  
Discharge Capacity ◽  
High Capacity ◽  
Initial Discharge Capacity ◽  
Capacity Retention ◽  
Initial Discharge ◽  
Sodium Batteries

A novel high-capacity cathode material C4Q/CMK-3 for SIBs shows an initial discharge capacity of 438 mA h g−1 and a capacity retention of 219.2 mA h g−1 after 50 cycles.

scholarly journals Synthesis and Electrochemical Properties of C/LiMnPO4 Cathode Materials by Complex Polymerized Method

2011 ◽  
Vol 485 ◽  
pp. 115-118
Author(s):  
Atsushi Fujita ◽  
Fuminari Isobe ◽  
Takayuki Kodera ◽  
Takashi Ogihara
Keyword(s):  
Thermogravimetric Analysis ◽  
Electrochemical Properties ◽  
Carbon Content ◽  
Discharge Capacity ◽  
Cathode Materials ◽  
Type Structure ◽  
Initial Discharge Capacity ◽  
Initial Discharge ◽  
Differential Thermogravimetric Analysis

C/LiMnPO4 materials were synthesized by the complex polymerized method. An orthorhombic olivine type structure was obtained by calcination at temperatures over 973 K under an argon/hydrogen (5%) atmosphere. Differential thermogravimetric analysis showed that the carbon content of C/LiMnPO4 was about 65 wt%. The initial discharge capacity of C/LiMnPO4 calcined at 973 K was 135 mAh/g at 0.1 C and 60 mAh/g at 1 C.

Tris(trimethylsilyl) phosphite (TMSPi) as an electrolyte additive for LiNi0.5Co0.2Mn0.3O2 cathode materials at elevated voltage and temperature

2021 ◽  
Author(s):  
Xiao Yu ◽  
Zhiyong Yu ◽  
Jishen Hao ◽  
Hanxing Liu
Keyword(s):  
Discharge Capacity ◽  
Cathode Materials ◽  
Solid Electrolyte Interphase ◽  
Rate Capability ◽  
Electrochemical Performances ◽  
Initial Discharge Capacity ◽  
Capacity Retention ◽  
Electrolyte Additive ◽  
Interface Impedance ◽  
Initial Discharge

Electrolyte additive tris(trimethylsilyl) phosphite (TMSPi) was used to promote the electrochemical performances of LiNi[Formula: see text]Co[Formula: see text]Mn[Formula: see text]O2 (NCM523) at elevated voltage (4.5 V) and temperature (55[Formula: see text]C). The NCM523 in 2.0 wt.% TMSPi-added electrolyte exhibited a much higher capacity (166.8 mAh/g) than that in the baseline electrolyte (118.3 mAh/g) after 100 cycles under 4.5 V at 30[Formula: see text]C. Simultaneously, the NCM523 with 2.0 wt.% TMSPi showed superior rate capability compared to that without TMSPi. Besides, after 100 cycles at 55[Formula: see text]C under 4.5 V, the discharge capacity retention reached 87.4% for the cell with 2.0 wt.% TMSPi, however, only 24.4% of initial discharge capacity was left for the cell with the baseline electrolyte. A series of analyses (TEM, XPS and EIS) confirmed that TMSPi-derived solid electrolyte interphase (SEI) stabilized the electrode/electrolyte interface and hindered the increase of interface impedance, resulting in obviously enhanced electrochemical performances of NCM523 cathode materials under elevated voltage and/or temperature.

The displacement reaction mechanism of the CuV2O6 nanowire cathode for rechargeable aqueous zinc ion batteries

2020 ◽  
Vol 49 (4) ◽  
pp. 1048-1055 ◽  
Author(s):  
Xin Yu ◽  
Fang Hu ◽  
Fuhan Cui ◽  
Jun Zhao ◽  
Chao Guan ◽  
...  
Keyword(s):  
Reaction Mechanism ◽  
Cathode Material ◽  
Discharge Capacity ◽  
Current Density ◽  
Zinc Ion ◽  
Cycle Performance ◽  
Displacement Reaction ◽  
Initial Discharge Capacity ◽  
Initial Discharge ◽  
A Current

CuV2O6 nanowires as a cathode material for Zn-ion batteries display an initial discharge capacity of 338 mA h g−1 at a current density of 100 mA g−1 and an excellent cycle performance after 1200 cycles at 5 A g−1.

Improving the oxygen redox stability of NaCl-type cation disordered Li2MnO3 in a composite structure of Li2MnO3 and spinel-type LiMn2O4

2019 ◽  
Vol 7 (10) ◽  
pp. 5381-5390 ◽  
Author(s):  
R. Kataoka ◽  
N. Taguchi ◽  
T. Kojima ◽  
N. Takeichi ◽  
T. Kiyobayashi
Keyword(s):  
Discharge Capacity ◽  
Composite Structure ◽  
Initial Discharge Capacity ◽  
Spinel Type ◽  
Initial Discharge ◽  
Stable Oxygen ◽  
Redox Stability

The Li2MnO3–LiMn2O4 composite shows a high initial discharge capacity of about 400 mA h g−1 due to its stable oxygen redox stability.

Fabrication of mesoporous Li2S–C nanofibers for high performance Li/Li2S cell cathodes

Nanoscale ◽  
2015 ◽  
Vol 7 (21) ◽  
pp. 9472-9476 ◽  
Author(s):  
Fangmin Ye ◽  
Yuan Hou ◽  
Meinan Liu ◽  
Wanfei Li ◽  
Xiaowei Yang ◽  
...  
Keyword(s):  
Discharge Capacity ◽  
High Performance ◽  
Initial Discharge Capacity ◽  
Initial Discharge ◽  
Activation Potential ◽  
Cell Cathodes

The mesoporous Li2S–C nanofiber cathode demonstrated a low activation potential and a high initial discharge capacity of 800 mA h g−1.

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