A Se/C composite as cathode material for rechargeable lithium batteries with good electrochemical performance

RSC Advances ◽  
2014 ◽  
Vol 4 (18) ◽  
pp. 9086-9091 ◽  
Author(s):  
Lili Liu ◽  
Yuyang Hou ◽  
Yaqiong Yang ◽  
Minxia Li ◽  
Xiaowei Wang ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Cathode Material ◽  
Lithium Batteries ◽  
Rate Capability ◽  
Rechargeable Lithium Batteries

A Se/C composite is prepared as cathode material for rechargeable lithium batteries, which significantly enhances the capacity and improves the rate capability in comparison with the commercial Se particles.

Pyrite FeS2–C composite as a high capacity cathode material of rechargeable lithium batteries

RSC Advances ◽  
2015 ◽  
Vol 5 (107) ◽  
pp. 87847-87854 ◽  
Author(s):  
Dat T. Tran ◽  
Hong Dong ◽  
Scott D. Walck ◽  
Sheng S. Zhang
Keyword(s):  
Cathode Material ◽  
Lithium Batteries ◽  
High Capacity ◽  
Rate Capability ◽  
Rechargeable Lithium Batteries ◽  
Capacity Fading ◽  
Nucleophilic Reaction ◽  
Lithium Polysulfide

A FeS2–C composite shows improved rate capability but still suffers from fast capacity fading due to either dissolution of lithium polysulfide in ether-based electrolytes or nucleophilic reaction of polysulfide anions in carbonate-based electrolytes.

Li0.95Na0.05Ti2(PO4)3/C with Good Performance as Anode Material for Aqueous Rechargeable Lithium Batteries

2014 ◽  
Vol 989-994 ◽  
pp. 316-319 ◽  
Author(s):  
Jing Zhu ◽  
Yong Guang Liu ◽  
Qing Qing Tian ◽  
Ling Wang ◽  
Ji Lin Cao
Keyword(s):  
Cyclic Voltammetry ◽  
Electrochemical Performance ◽  
Anode Material ◽  
Lithium Batteries ◽  
Sol Gel ◽  
Nasicon Structure ◽  
Galvanostatic Charge ◽  
Rechargeable Lithium Batteries ◽  
Structure And Morphology ◽  
Charge Discharge

Li0.95Na0.05Ti2(PO4)3/C nanocomposite was prepared by sol-gel method.The structure and morphology of the samples were characterized by XRD, SEM which showed the particles had typical NASICON structure and diameter range from 400~500nm. The electrochemical performance were tested by cyclic voltammetry and galvanostatic charge–discharge. Results show Li0.95Na0.05Ti2(PO4)3/C nanocomposite exhibitsmuch better electrochemical performance than bare Li0.95Na0.05Ti2(PO4)3.

Guar gum as a novel binder for sulfur composite cathodes in rechargeable lithium batteries

2016 ◽  
Vol 52 (92) ◽  
pp. 13479-13482 ◽  
Author(s):  
Qinyu Li ◽  
Huijun Yang ◽  
Lisheng Xie ◽  
Jun Yang ◽  
Yanna Nuli ◽  
...  
Keyword(s):  
Lithium Batteries ◽  
Guar Gum ◽  
Rate Capability ◽  
Composite Cathode ◽  
Cycling Performance ◽  
High Rate ◽  
Rechargeable Lithium Batteries ◽  
High Rate Capability ◽  
Composite Cathodes ◽  
Aqueous Binder

In this work, we investigate a novel aqueous binder which promotes S@pPAN composite cathode materials exhibiting excellent cycling performance and favorable high rate capability.

Polyphenylene Tetrasulfide as an Inherently Flexible Cathode Material for Rechargeable Lithium Batteries

2018 ◽  
Vol 1 (11) ◽  
pp. 5859-5864 ◽  
Author(s):  
Amruth Bhargav ◽  
Michaela Elaine Bell ◽  
Yi Cui ◽  
Yongzhu Fu
Keyword(s):  
Cathode Material ◽  
Lithium Batteries ◽  
Rechargeable Lithium Batteries

scholarly journals Improved electrochemical performance of SiO2-coated Li-rich layered oxides-Li1.2Ni0.13Mn0.54Co0.13O2

2020 ◽  
Vol 31 (21) ◽  
pp. 19475-19486
Author(s):  
Jeffin James Abraham ◽  
Umair Nisar ◽  
Haya Monawwar ◽  
Aisha Abdul Quddus ◽  
R. A. Shakoor ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Cathode Material ◽  
Sol Gel ◽  
Rate Capability ◽  
Lithium Ion ◽  
Side Reactions ◽  
Operating Voltage ◽  
Layered Oxides ◽  
Capacity Retention ◽  
Xps Characterization

AbstractLithium-rich layered oxides (LLOs) such as Li1.2Ni0.13Mn0.54Co0.13O2 are suitable cathode materials for future lithium-ion batteries (LIBs). Despite some salient advantages, like low cost, ease of fabrication, high capacity, and higher operating voltage, these materials suffer from low cyclic stability and poor capacity retention. Several different techniques have been proposed to address the limitations associated with LLOs. Herein, we report the surface modification of Li1.2Ni0.13Mn0.54Co0.13O2 by utilizing cheap and readily available silica (SiO2) to improve its electrochemical performance. Towards this direction, Li1.2Ni0.13Mn0.54Co0.13O2 was synthesized utilizing a sol–gel process and coated with SiO2 (SiO2 = 1.0 wt%, 1.5 wt%, and 2.0 wt%) employing dry ball milling technique. XRD, SEM, TEM, elemental mapping and XPS characterization techniques confirm the formation of phase pure materials and presence of SiO2 coating layer on the surface of Li1.2Ni0.13Mn0.54Co0.13O2 particles. The electrochemical measurements indicate that the SiO2-coated Li1.2Ni0.13Mn0.54Co0.13O2 materials show improved electrochemical performance in terms of capacity retention and cyclability when compared to the uncoated material. This improvement in electrochemical performance can be related to the prevention of electrolyte decomposition when in direct contact with the surface of charged Li1.2Ni0.13Mn0.54Co0.13O2 cathode material. The SiO2 coating thus prevents the unwanted side reactions between cathode material and the electrolyte. 1.0 wt% SiO2-coated Li1.2Ni0.13Mn0.54Co0.13O2shows the best electrochemical performance in terms of rate capability and capacity retention.

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