Improving the electrochemical performance of the LiNi0.5Mn1.5O4spinel by polypyrrole coating as a cathode material for the lithium-ion battery

2015 ◽  
Vol 3 (1) ◽  
pp. 404-411 ◽  
Author(s):  
Xuan-Wen Gao ◽  
Yuan-Fu Deng ◽  
David Wexler ◽  
Guo-Hua Chen ◽  
Shu-Lei Chou ◽  
...  
Keyword(s):  
Elevated Temperature ◽  
Electrochemical Performance ◽  
Cathode Material ◽  
Electrochemical Properties ◽  
Lithium Ion Battery ◽  
Cathode Materials ◽  
Lithium Ion ◽  
Li Ion Batteries ◽  
Li Ion ◽  
Conductive Polypyrrole

Conductive polypyrrole (PPy)-coated LiNi0.5Mn1.5O4(LNMO) composites are applied as cathode materials in Li-ion batteries, and their electrochemical properties are explored at both room and elevated temperature.

A separator modified by high efficiency oxygen plasma for lithium ion batteries with superior performance

RSC Advances ◽  
2015 ◽  
Vol 5 (113) ◽  
pp. 92995-93001 ◽  
Author(s):  
Qianqian Jiang ◽  
Zhen Li ◽  
Shuangyin Wang ◽  
Han Zhang
Keyword(s):  
Elevated Temperature ◽  
Electrochemical Performance ◽  
Oxygen Plasma ◽  
High Efficiency ◽  
Lithium Ion ◽  
Cycling Performance ◽  
Superior Performance ◽  
Li Ion Batteries ◽  
Excellent Electrochemical Performance ◽  
Li Ion

The separator modified by high efficiency oxygen plasma is used for the Li/LiMn2O4 batteries, which show excellent electrochemical performance in terms of capacity and cycling performance, especially at the elevated temperature of Li-ion batteries.

scholarly journals An overview of bio-interface electrolyte and Li2FePO4F as cathode in Li-ion batteries

2019 ◽  
Vol 9 (2) ◽  
pp. 3866-3873
Keyword(s):  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
Sol Gel ◽  
Lithium Ion ◽  
Li Ion Batteries ◽  
View Point ◽  
Iron Nickel ◽  
Li Ion ◽  
Charge Discharge

Composites of {[(1-x-y) LiFe0.333Ni0.333 Co0.333] PO4}, xLi2FePO4F and yLiCoPO4system were synthesized using the sol-gel method. Stoichiometric weights of the mole-fraction of LiOH, FeCl2·4H2O and H3PO4, LiCl, Ni(NO3)2⋅6H2O, Co(Ac)2⋅4H2O, as starting materials of lithium, Iron, Nickel , and Cobalt, in 7 samples of the system, respectively. We exhibited Li1.167 Ni0.222 Co0.389 Fe0.388 PO4 is the best composition for cathode material in this study. Obviously, the used weight of cobalt in these samples is lower compared with LiCoO2 that is an advantage in view point of cost in this study. Charge-discharge haracteristics of the mentioned cathode materials were investigated by performing cycle tests in the range of 2.4–3.8 V (versus Li/Li+). Our results confirmed, although these kind systems can help for removing the disadvantage of cobalt which mainly is its cost and toxic, the performance of these kind systems are similar to the commercial cathode materials in Lithium Ion batteries (LIBs).

Electrospun LiFexMn1-xPO4/C Composite Nanofibers for Lithium-Ion Batteries

2021 ◽  
Vol 58 (2) ◽  
pp. 211-219
Author(s):  
Ozan Toprakci
Keyword(s):  
Energy Density ◽  
Electrochemical Performance ◽  
Cathode Materials ◽  
Composite Nanofibers ◽  
Active Material ◽  
Lithium Ion ◽  
Li Ion Batteries ◽  
Step Method ◽  
Long Cycle Life ◽  
Li Ion

Since the commercialization of Li-ion batteries by Sony in 1990, the performance of cathode materials used in Li-ion batteries has improved significantly. However, Li-ion batteries cannot respond to the needs of the energy storage market in terms of energy density. In order to increase theoretical energy density of active materials, molar mass of the active material should be decreased, or electron number participating per reaction or reaction potential should be increased. In this study, it was aimed to produce cathode materials for Li-ion batteries in the form of composite nanofibers via electrospinning method. For this purpose, porous LiFexMn1-xPO4/C composite nanofibers (1 ] x ] 0) were synthesized with a scalable, two-step method (electrospinning and subsequent heat treatment). The morphological, structural and electrochemical properties of the LiFexMn1-xPO4/C composite nanofibers were determined by scanning electron microscope, X-ray diffraction and galvanostatic charge/discharge tests. Cathodes made of LiFexMn1-xPO4/C composite nanofibers showed various advantages such as long cycle life, improved electrochemical performance etc. due to the presence of carbon and LiFexMn1-xPO4 in the composite structure. With the addition of Mn to the structure of LiFePO4/C composite nanofibers, electrochemical performance was improved. LiFe0.8Mn0.2PO4/C composite nanofibers showed the best performance in terms of energy density among the samples. Further increment in Mn/Fe ratio resulted declining electrochemical capacity and energy density.

Enhancing the performance of MnO by double carbon modification for advanced lithium-ion battery anodes

2016 ◽  
Vol 4 (3) ◽  
pp. 920-925 ◽  
Author(s):  
Xiaojian Jiang ◽  
Wei Yu ◽  
Hui Wang ◽  
Huayun Xu ◽  
Xizheng Liu ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Electrochemical Performance ◽  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Li Ion Batteries ◽  
Carbon Modification ◽  
Li Ion

Unique porous MnO with micro/nano-architectures has been in situ decorated with carbon layers on the surface and by carbon nanotube doping. The composites exhibit stable electrochemical performance as anodes for Li ion batteries.

Effects of V2O5 nanowires on the performances of Li2MnSiO4 as a cathode material for lithium-ion batteries

RSC Advances ◽  
2015 ◽  
Vol 5 (62) ◽  
pp. 50316-50323 ◽  
Author(s):  
Hai Zhu ◽  
Xiaoling Ma ◽  
Ling Zan ◽  
Youxiang Zhang
Keyword(s):  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
Lithium Ion ◽  
Li Ion Batteries ◽  
Li Ion

Effects of V2O5 nanowires on the performances of Li2MnSiO4 as cathode materials for Li-ion batteries were tested and analyzed.

scholarly journals A common tattoo chemical for energy storage: henna plant-derived naphthoquinone dimer as a green and sustainable cathode material for Li-ion batteries

RSC Advances ◽  
2018 ◽  
Vol 8 (3) ◽  
pp. 1576-1582 ◽  
Author(s):  
Mikhail Miroshnikov ◽  
Keiko Kato ◽  
Ganguli Babu ◽  
Kizhmuri P. Divya ◽  
Leela Mohana Reddy Arava ◽  
...  
Keyword(s):  
Energy Storage ◽  
Cathode Material ◽  
Lithium Ion Battery ◽  
Sustainable Energy ◽  
Lithium Ion ◽  
Li Ion Batteries ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Energy Demands ◽  
Li Ion

The burgeoning energy demands of an increasingly eco-conscious population have spurred the need for sustainable energy storage devices, and have called into question the viability of the popular lithium ion battery.

scholarly journals Hierarchical CuBi2O4 microspheres as lithium-ion battery anodes with superior high-temperature electrochemical performance

RSC Advances ◽  
2017 ◽  
Vol 7 (22) ◽  
pp. 13250-13256 ◽  
Author(s):  
Hong Yin ◽  
Ming-Lei Cao ◽  
Xiang-Xiang Yu ◽  
Chong Li ◽  
Yan Shen ◽  
...  
Keyword(s):  
High Temperature ◽  
Electrochemical Performance ◽  
Lithium Ion Battery ◽  
Anode Materials ◽  
Lithium Ion ◽  
Li Ion Batteries ◽  
Multilevel Structure ◽  
Li Ion

Hierarchical CuBi2O4 microspheres as anode materials for Li-ion batteries show superior high-temperature electrochemical performance due to its multilevel structure and outstanding thermostability.

Synthesis of Li[Ni0.8Co0.1Mn0.1]O2 Hierarchical Architectures and their Electrochemical Properties as Positive Materials of Li-Ion Batteries

2012 ◽  
Vol 512-515 ◽  
pp. 2028-2031 ◽  
Author(s):  
Shao Li ◽  
Li Wei Mi ◽  
Juan Juan Zhao ◽  
Chang Chun Yang ◽  
Jian Min Zhang ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Cathode Materials ◽  
Lithium Ion ◽  
Synthesis Process ◽  
Distilled Water ◽  
Li Ion Batteries ◽  
Hierarchical Architectures ◽  
Li Ion ◽  
Synthesized Materials ◽  
Positive Materials

A series of Li[Ni0.8Co0.1Mn0.1]O2were synthesized with different [Ni0.8Co0.1Mn0.1](OH)2as precursors. Because the precursors were obtained via hydrothermal method at solutions with different ratios of ethanol and distilled water, they present different morphology in details. This phenomenon were inherited by the Li[Ni0.8Co0.1Mn0.1]O2. In addition, as-synthesized materials Li[Ni0.8Co0.1Mn0.1]O2perform distinct electrochemical properties as cathode materials in lithium-ion battery. The results indicate that more ethanol used in this work is effective to modify the surface structure of materials leading to better electrochemical properties. In addition, more ethanol in synthesis process could also improve the density of samples.

Effect of Calcination Time on the Specific Capacities of LiNi0.4Co0.55Ti0.05O2 Cathode Materials

2014 ◽  
Vol 895 ◽  
pp. 351-354 ◽  
Author(s):  
Norlida Kamarulzaman ◽  
Azira Azahidi ◽  
Kelimah Elong ◽  
Nurul Atikah Mohd Mokhtar ◽  
Nurshafiza Mohdi
Keyword(s):  
Electrochemical Performance ◽  
Cathode Material ◽  
Electrochemical Behavior ◽  
Cathode Materials ◽  
Lower Cost ◽  
Li Ion Batteries ◽  
Calcination Time ◽  
Li Ion

One of the main goals for most of the research in advanced Li-ion batteries is to develop cathode materials with improvement on cost and toxicity. This is to replace the existing commercial cathode material, LiCoO2. LiNi0.4Co0.6O2 was introduced as one of the most promising candidates for a cathode material due to its lower cost and higher capacity compared with LiCoO2. Modification of cathode materials by substituting with other materials is one of the alternative ways to improve the electrochemical performance of the material. In this case, a little amount of Ti was substituted to replace Co in order to give the material LiNi0.4Co0.55Ti0.05O2. Results showed that the substituition of some Co with Ti improves the electrochemical behavior of the material.

Facile synthesis of porous Li-rich layered Li[Li0.2Mn0.534Ni0.133Co0.133]O2 as high-performance cathode materials for Li-ion batteries

RSC Advances ◽  
2015 ◽  
Vol 5 (39) ◽  
pp. 30507-30513 ◽  
Author(s):  
Chenwei Cao ◽  
Liujiang Xi ◽  
Kwan Lan Leung ◽  
Man Wang ◽  
Ying Liu ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
High Performance ◽  
Lithium Ion ◽  
Li Ion Batteries ◽  
Facile Synthesis ◽  
Li Ion

Porous Li-rich layered Li[Li0.2Mn0.534Ni0.133Co0.133]O2 was successfully prepared by a facile polymer-thermolysis method and exhibited superior electrochemical performance as cathode materials for lithium ion batteries.

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