Selective Extraction of Lithium from a Spent Lithium Iron Phosphate Battery by Mechanochemical Solid-phase Oxidation

2021 ◽  
Author(s):  
Kang Liu ◽  
Lili Liu ◽  
Quanyin Tan ◽  
Jinhui Li
Keyword(s):  
Cathode Materials ◽  
Lithium Iron Phosphate ◽  
Solid Phase ◽  
Iron Phosphate ◽  
Selective Extraction ◽  
Green Process ◽  
Rapid Extraction ◽  
Phase Oxidation

This study proposes a green process for selective and rapid extraction of lithium from the cathode materials of spent lithium iron phosphate (LiFePO4) batteries via mechanochemical solid-phase oxidation. The advantages...

scholarly journals Direct regeneration of cathode materials from spent lithium iron phosphate batteries using a solid phase sintering method

RSC Advances ◽  
2017 ◽  
Vol 7 (8) ◽  
pp. 4783-4790 ◽  
Author(s):  
X. Song ◽  
T. Hu ◽  
C. Liang ◽  
H. L. Long ◽  
L. Zhou ◽  
...  
Keyword(s):  
Cathode Materials ◽  
Lithium Iron Phosphate ◽  
Solid Phase ◽  
Iron Phosphate ◽  
Direct Regeneration ◽  
Sintering Method

A direct regeneration of cathode materials from spent LiFePO4 batteries using a solid phase sintering method has been proposed in this article.

scholarly journals An Overview of Lithium-Ion Battery Cathode Materials

2011 ◽  
Vol 1363 ◽  
Author(s):  
Yixu Wang ◽  
Hsiao-Ying Shadow Huang
Keyword(s):  
Energy Storage ◽  
Lithium Ion Battery ◽  
Cathode Materials ◽  
Lithium Iron Phosphate ◽  
Lithium Ion ◽  
Iron Phosphate ◽  
High Energy ◽  
Rechargeable Batteries ◽  
Environmental Benefits ◽  
Energy Storage Devices

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.

scholarly journals Morphology and Electrical Conductivity of Carbon Nanocoatings Prepared from Pyrolysed Polymers

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Marcin Molenda ◽  
Michał Świętosławski ◽  
Marek Drozdek ◽  
Barbara Dudek ◽  
Roman Dziembaj
Keyword(s):  
Electrical Conductivity ◽  
Electrode Materials ◽  
Lithium Iron Phosphate ◽  
Solid Phase ◽  
Scale Up ◽  
Iron Phosphate ◽  
Battery Cell ◽  
Pyromellitic Acid ◽  
Specific Morphology ◽  
Precursor Composition

Conductive carbon nanocoatings (conductive carbon layers—CCL) were formed onα-Al2O3model support using three different polymer precursors and deposition methods. This was done in an effort to improve electrical conductivity of the material through creating the appropriate morphology of the carbon layers. The best electrical properties were obtained with use of a precursor that consisted of poly-N-vinylformamide modified with pyromellitic acid (PMA). We demonstrate that these properties originate from a specific morphology of this layer that showed nanopores (3-4 nm) capable of assuring easy pathways for ion transport in real electrode materials. The proposed, water mediated, method of carbon coating of powdered supports combines coating from solution and solid phase and is easy to scale up process. The optimal polymer carbon precursor composition was used to prepare conductive carbon nanocoatings on LiFePO4cathode material. Charge-discharge tests clearly show that C/LiFePO4composites obtained using poly-N-vinylformamide modified with pyromellitic acid exhibit higher rechargeable capacity and longer working time in a battery cell than standard carbon/lithium iron phosphate composites.

Effect of Doping Ions on Electrochemical Properties of LiFePO4 Cathode

2011 ◽  
Vol 197-198 ◽  
pp. 1135-1138 ◽  
Author(s):  
Yan Li Ruan
Keyword(s):  
Solid State ◽  
Cathode Materials ◽  
Lithium Iron Phosphate ◽  
Iron Phosphate ◽  
Solid State Reaction Method ◽  
Inert Atmosphere ◽  
Cycle Performance ◽  
Performance Measurements ◽  
Reaction Method ◽  
Large Current

Lithium iron phosphate (LiFePO4) cathode materials containing different low concentration ion dopants (Mg2+, Al3+, Zr4+, and Nb5+) were prepared by a solid-state reaction method in an inert atmosphere. The effects of the doping ions on the properties of as-synthesized cathode materials were investigated. XRD results indicate that the ion dopants do not affect the structure of the materials. The galvanostatically charge and discharge tests show that ion dopants can considerably improve the electrochemical performance of the materials, especially large current discharge behaviors. LiFePO4 samples doped with Nb5+have an initiate capacity of 146.8 mAh•g-1at 0.1C. Further cycle performance measurements reveal the sample doped with Nb5+shows the best cycleability. The results also verify that LiFePO4doped with ions of suited radius and higher valence shows better electrochemical characters.

scholarly journals Non-stoichiometric carbon-coated LiFexPO4as cathode materials for high-performance Li-ion batteries

RSC Advances ◽  
2017 ◽  
Vol 7 (53) ◽  
pp. 33544-33551 ◽  
Author(s):  
Ying Feng ◽  
Junjie Gu ◽  
Feng Yu ◽  
Chunfu Lin ◽  
Jinli Zhang ◽  
...  
Keyword(s):  
Cathode Materials ◽  
High Performance ◽  
Lithium Iron Phosphate ◽  
Iron Phosphate ◽  
Lattice Parameters ◽  
Li Ion Batteries ◽  
Carbon Coated ◽  
Li Ion ◽  
Work First

This work first discloses the evolution of lattice parameters of the non-stoichiometric lithium iron phosphate crystals.

“Hydrotriphylites” Li1-xFe1+x(PO4)1-y(OH)4y as Cathode Materials for Li-ion Batteries

2019 ◽  
Author(s):  
Vasily D. Sumanov ◽  
Dmitry A. Aksyonov ◽  
Oleg A. Drozhzhin ◽  
Igor A. Presniakov ◽  
Alexey V. Sobolev ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Chemical Composition ◽  
Cathode Materials ◽  
Lithium Iron Phosphate ◽  
Renewable Energy Sources ◽  
Rate Capability ◽  
Iron Phosphate ◽  
Hydroxyl Groups ◽  
Ion Diffusion ◽  
Li Ion

Lithium iron phosphate LiFePO<sub>4</sub> triphylite is now one of the core positive electrode (cathode) materials enabling the Li-ion battery technology for stationary energy storage applications, which are important for broad implementation of the renewable energy sources. Despite the apparent simplicity of its crystal structure and chemical composition, LiFePO<sub>4</sub> is prone to off-stoichiometry and demonstrates rich defect chemistry owing to variations in the cation content and iron oxidation state, and to the redistribution of the cations and vacancies over two crystallographically distinct octahedral sites. The importance of the defects stems from their impact on the electrochemical performance, particularly on limiting the capacity and rate capability through blocking the Li ion diffusion along the channels of the olivine-type LiFePO<sub>4</sub> structure. Up to now the polyanionic (i.e. phosphate) sublattice has been considered idle on this playground. Here, we demonstrate that under hydrothermal conditions up to 16% of the phosphate groups can be replaced with hydroxyl groups yielding the Li<sub>1-x</sub>Fe<sub>1+x</sub>(PO<sub>4</sub>)<sub>1-y</sub>(OH)<sub>4y</sub> solid solutions, which we term “hydrotriphylites”. This substitution has tremendous effect on the chemical composition and crystal structure of the lithium iron phosphate causing abundant population of the Li-ion diffusion channels with the iron cations and off-center Li displacements due to their tighter bonding to oxygens. These perturbations trigger the formation of an acentric structure and increase the activation barriers for the Li-ion diffusion. The “hydrotriphylite”-type substitution also affects the magnetic properties by progressively lowering the Néel temperature. The off-stoichiometry caused by this substitution critically depends on the overall concentration of the precursors and reducing agent in the hydrothermal solutions, placing it among the most important parameters to control the chemical composition and defect concentration of the LiFePO<sub>4</sub>-based cathodes.

Study of properties of cathode materials based on lithium-iron phosphate

2014 ◽  
Vol 5 (5) ◽  
pp. 467-470 ◽  
Author(s):  
K. S. Smirnov ◽  
V. A. Zhorin ◽  
S. E. Smirnov
Keyword(s):  
Cathode Materials ◽  
Lithium Iron Phosphate ◽  
Iron Phosphate

A fast and efficient method for selective extraction of lithium from spent lithium iron phosphate battery

2021 ◽  
pp. 101569
Author(s):  
Huajian Shentu ◽  
Bo Xiang ◽  
Ya-Jun Cheng ◽  
Tao Dong ◽  
Jie Gao ◽  
...  
Keyword(s):  
Efficient Method ◽  
Lithium Iron Phosphate ◽  
Iron Phosphate ◽  
Selective Extraction
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