Research on Preparation of Nano-porous Lithium Iron Phosphate for Lithium-ion Battery Electrode Materials

ABSTRACTThe need for the development and deployment of reliable and efficient energy storage devices, such as lithium-ion rechargeable batteries, is becoming increasingly important due to the scarcity of petroleum. In this work, we provide an overview of commercially available cathode materials for Li-ion rechargeable batteries and focus on characteristics that give rise to optimal energy storage systems for future transportation modes. The study shows that the development of lithium-iron-phosphate (LiFePO4) batteries promises an alternative to conventional lithiumion batteries, with their potential for high energy capacity and power density, improved safety, and reduced cost. This work contributes to the fundamental knowledge of lithium-ion battery cathode materials and helps with the design of better rechargeable batteries, and thus leads to economic and environmental benefits.

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Research of LiFePO4 as Positive Electrode Materials

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.217-219.792 ◽

2012 ◽

Vol 217-219 ◽

pp. 792-795

Author(s):

Ling Na Sun

Keyword(s):

Electrode Materials ◽

Lithium Iron Phosphate ◽

Lithium Ion ◽

Iron Phosphate ◽

Positive Electrode ◽

Research Progress ◽

Rechargeable Battery ◽

Porous Structures ◽

And Performance ◽

Positive Electrode Materials

LiFePO4 is a promising cathode material for the next generation of a lithium-ion rechargeable battery. This paper introduces the research progress in recent years on LiFePO4 as positive electrode materials for lithium ion batteries. The methods of the preparation and modification, relation ship between structure and performance, and prospect of olivine-type lithium iron phosphate cathode materials was reviewed. Porous structures offer the potential to improve the electrochemical properties of LiFePO4.

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Discharged Na5V12O32 Nanowire Arrays Coated with Cu-Cu2O for High Performance Lithium-Ion Batteries

Journal of The Electrochemical Society ◽

10.1149/1945-7111/ac39dc ◽

2021 ◽

Author(s):

Guangjie Yang ◽

Mengmeng Cui ◽

Tao Han ◽

dong fang ◽

Xingjie Lu ◽

...

Keyword(s):

Lithium Ion Battery ◽

High Performance ◽

Composite Electrode ◽

Electrode Materials ◽

Coating Layer ◽

Lithium Ion ◽

Nanowire Arrays ◽

Battery Electrode ◽

Cu2o Nanoparticles ◽

Enhanced Electrochemical Performance

Abstract Sodium vanadate have been widely used as a lithium-ion battery anode. However, its further application is restricted by the capacity attenuation during cycles because of its easy solubility in electrolyte, huge structural change, and low conductivity. Here, a lithium-ion battery electrode based on Cu-Cu2O coated Na5V12O32 nanowire arrays using a predischarge-electrodeposition method is freported. Remarkably, in the Cu-Cu2O@Na5V12O32 electrode, the Na5V12O32 nanowires function as the skeleton, and Cu-Cu2O nanoparticles function as the coating layer. At a specific current of 50 mA g-1, the composite electrode exhibits discharge and charge capacity of 837 and 821 mAh g-1 after 80 cycles, respectively, which is much higher than that of the Na5V12O32 nanowires electrode. This research provides a new pathway to explore electrode materials with enhanced electrochemical performance.

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A Glass Platelet Coating on Battery Electrodes and Its Use as a Separator for Lithium-Ion Batteries

Journal of Electrochemical Energy Conversion and Storage ◽

10.1115/1.4045783 ◽

2020 ◽

Vol 17 (3) ◽

Author(s):

Ulrich Schadeck ◽

Thorsten Gerdes ◽

Walter Krenkel ◽

Ralf Moos

Keyword(s):

Lithium Ion Batteries ◽

Lithium Iron Phosphate ◽

Lithium Ion ◽

Temperature Stability ◽

Iron Phosphate ◽

Interesting Property ◽

High Temperature Stability ◽

Battery Electrode ◽

New Type ◽

Glass Separator

Abstract A new type of separator for lithium-ion batteries (LIBs) has been developed using ultrathin micrometer-sized sodium borosilicate glass platelets coated directly on a battery electrode with a water-based binder. The coating process is described in detail, demonstrating coating thicknesses of the glass separator of less than 50 µm. The high-temperature stability has been investigated and it has been shown that the separator is dimensionally stable to at least 600 °C. With regard to the electrochemical performance, full-cell tests on graphite || lithium iron phosphate cells showed a very good behavior, according to which comparable properties of the electrode/separator compound to a commercial polymer-based separator were achieved. This glass separator/electrode composite shows an interesting property profile and is a temperature-stable alternative to conventional polymer-based separators.

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