Cr-doped Li2MnSiO4/carbon composite nanofibers as high-energy cathodes for Li-ion batteries

2012 ◽  
Vol 22 (29) ◽  
pp. 14661 ◽  
Author(s):  
Shu Zhang ◽  
Zhan Lin ◽  
Liwen Ji ◽  
Ying Li ◽  
Guanjie Xu ◽  
...  
Keyword(s):  
Composite Nanofibers ◽  
High Energy ◽  
Carbon Composite ◽  
Li Ion Batteries ◽  
Li Ion

Nanosilica/carbon composite spheres as anodes in Li-ion batteries with excellent cycle stability

2015 ◽  
Vol 3 (4) ◽  
pp. 1476-1482 ◽  
Author(s):  
Mingqi Li ◽  
Yan Yu ◽  
Jing Li ◽  
Baoling Chen ◽  
Xianwen Wu ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Material ◽  
High Capacity ◽  
Lithium Ion ◽  
High Energy ◽  
Carbon Composite ◽  
Li Ion Batteries ◽  
Cycle Stability ◽  
Li Ion

Because of its high capacity, relatively low operation potentials, abundance and environmental benevolence, silica is a promising anode material for high-energy lithium-ion batteries.

scholarly journals Improving Fast Charging-Discharging Performances of Ni-Rich LiNi0.8Co0.1Mn0.1O2 Cathode Material by Electronic Conductor LaNiO3 Crystallites

Materials ◽  
2022 ◽  
Vol 15 (1) ◽  
pp. 396
Author(s):  
Tongxin Li ◽  
Donglin Li ◽  
Qingbo Zhang ◽  
Jianhang Gao ◽  
Long Zhang ◽  
...  
Keyword(s):  
Coulombic Efficiency ◽  
Specific Capacity ◽  
High Energy ◽  
Carbon Composite ◽  
High Rate ◽  
Li Ion Batteries ◽  
Electronic Conductor ◽  
Fast Charging ◽  
Li Ion ◽  
First Time

Fast charging-discharging is one of the important requirements for next-generation high-energy Li-ion batteries, nevertheless, electrons transport in the active oxide materials is limited. Thus, carbon coating of active materials is a common method to supply the routes for electron transport, but it is difficult to synthesize the oxide-carbon composite for LiNiO2-based materials which need to be calcined in an oxygen-rich atmosphere. In this work, LiNi0.8Co0.1Mn0.1O2 (NCM811) coated with electronic conductor LaNiO3 (LNO) crystallites is demonstrated for the first time as fast charging-discharging and high energy cathodes for Li-ion batteries. The LaNiO3 succeeds in providing an exceptional fast charging-discharging behavior and initial coulombic efficiency in comparison with pristine NCM811. Consequently, the NCM811@3LNO electrode presents a higher capacity at 0.1 C (approximately 246 mAh g−1) and a significantly improved high rate performance (a discharge specific capacity of 130.62 mAh g−1 at 10 C), twice that of pristine NCM811. Additionally, cycling stability is also improved for the composite material. This work provides a new possibility of active oxide cathodes for high energy/power Li-ion batteries by electronic conductor LaNiO3 coating.

scholarly journals Li<sub>2</sub>MnSiO<sub>4</sub>/Carbon Composite Nanofibers as a High-Capacity Cathode Material for Li-Ion Batteries

2012 ◽  
Vol 02 (03) ◽  
pp. 54-57 ◽  
Author(s):  
Shu Zhang ◽  
Ying Li ◽  
Guanjie Xu ◽  
Shuli Li ◽  
Yao Lu ◽  
...  
Keyword(s):  
Cathode Material ◽  
Composite Nanofibers ◽  
High Capacity ◽  
Carbon Composite ◽  
Li Ion Batteries ◽  
Li Ion

Optimized electron occupancy of solid-solution transition metals for suppressing the oxygen evolution of Li2MnO3

2021 ◽  
Vol 9 (14) ◽  
pp. 9337-9346
Author(s):  
Erhong Song ◽  
Yifan Hu ◽  
Ruguang Ma ◽  
Yining Li ◽  
Xiaolin Zhao ◽  
...  
Keyword(s):  
Solid Solution ◽  
Energy Density ◽  
Transition Metals ◽  
Oxygen Evolution ◽  
High Energy ◽  
High Energy Density ◽  
Li Ion Batteries ◽  
Li Ion ◽  
Increasing Demand ◽  
Layered Cathodes

Li-rich layered cathodes based on Li2MnO3 have exhibited extraordinary promise to satisfy the rapidly increasing demand for high-energy density Li-ion batteries.

Novel low-cost, high-energy-density (>700 Wh kg−1) Li-rich organic cathodes for Li-ion batteries

2021 ◽  
Vol 415 ◽  
pp. 128509
Author(s):  
Qihang Yu ◽  
Wu Tang ◽  
Yang Hu ◽  
Jian Gao ◽  
Ming Wang ◽  
...  
Keyword(s):  
Energy Density ◽  
Low Cost ◽  
High Energy ◽  
High Energy Density ◽  
Li Ion Batteries ◽  
Li Ion

scholarly journals Novel core–shell structured Si/S-doped-carbon composite with buffering voids as high performance anode for Li-ion batteries

RSC Advances ◽  
2017 ◽  
Vol 7 (5) ◽  
pp. 2407-2414 ◽  
Author(s):  
Dan Shao ◽  
Inna Smolianova ◽  
Daoping Tang ◽  
Lingzhi Zhang
Keyword(s):  
Hydrothermal Method ◽  
High Performance ◽  
Reversible Capacity ◽  
Carbon Composite ◽  
Core Shell ◽  
Li Ion Batteries ◽  
Li Ion

Novel core–shell structured Si/S-doped carbon composite with buffering voids prepared by hydrothermal method and followed by carbonization and removal of template layer, exhibiting a reversible capacity of 664 mA h g−1 over 300 cycles.

Probing the Effect of High Energy Ball Milling on the Structure and Properties of LiNi1/3Mn1/3Co1/3O2 Cathodes for Li-Ion Batteries

2016 ◽  
Vol 13 (3) ◽  
Author(s):  
Malcolm Stein ◽  
Chien-Fan Chen ◽  
Matthew Mullings ◽  
David Jaime ◽  
Audrey Zaleski ◽  
...  
Keyword(s):  
Particle Size ◽  
Electrochemical Performance ◽  
Crystallite Size ◽  
Ball Milling ◽  
Lithium Ion ◽  
High Energy ◽  
Li Ion Batteries ◽  
Structure And Properties ◽  
Transfer Resistance ◽  
Li Ion

Particle size plays an important role in the electrochemical performance of cathodes for lithium-ion (Li-ion) batteries. High energy planetary ball milling of LiNi1/3Mn1/3Co1/3O2 (NMC) cathode materials was investigated as a route to reduce the particle size and improve the electrochemical performance. The effect of ball milling times, milling speeds, and composition on the structure and properties of NMC cathodes was determined. X-ray diffraction analysis showed that ball milling decreased primary particle (crystallite) size by up to 29%, and the crystallite size was correlated with the milling time and milling speed. Using relatively mild milling conditions that provided an intermediate crystallite size, cathodes with higher capacities, improved rate capabilities, and improved capacity retention were obtained within 14 μm-thick electrode configurations. High milling speeds and long milling times not only resulted in smaller crystallite sizes but also lowered electrochemical performance. Beyond reduction in crystallite size, ball milling was found to increase the interfacial charge transfer resistance, lower the electrical conductivity, and produce aggregates that influenced performance. Computations support that electrolyte diffusivity within the cathode and film thickness play a significant role in the electrode performance. This study shows that cathodes with improved performance are obtained through use of mild ball milling conditions and appropriately designed electrodes that optimize the multiple transport phenomena involved in electrochemical charge storage materials.

Using In Situ High-Energy X-ray Diffraction to Quantify Electrode Behavior of Li-Ion Batteries from Extreme Fast Charging

2021 ◽  
Author(s):  
Partha P. Paul ◽  
Chuntian Cao ◽  
Vivek Thampy ◽  
Hans-Georg Steinrück ◽  
Tanvir R. Tanim ◽  
...  
Keyword(s):  
High Energy ◽  
Li Ion Batteries ◽  
X Ray Diffraction ◽  
X Ray ◽  
Fast Charging ◽  
Li Ion
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