Lithium Iron Phosphate (LiFePO4) as High-Performance Cathode Material for Lithium Ion Batteries

2021 ◽  
pp. 35-73
Author(s):  
Neethu T. M. Balakrishnan ◽  
Asha Paul ◽  
M. A. Krishnan ◽  
Akhila Das ◽  
Leya Rose Raphaez ◽  
...  
Keyword(s):  
Cathode Material ◽  
Lithium Ion Batteries ◽  
High Performance ◽  
Lithium Iron Phosphate ◽  
Lithium Ion ◽  
Iron Phosphate

High-performance lithium iron phosphate with phosphorus-doped carbon layers for lithium ion batteries

2015 ◽  
Vol 3 (5) ◽  
pp. 2043-2049 ◽  
Author(s):  
Zhang Jinli ◽  
Wang Jiao ◽  
Liu Yuanyuan ◽  
Nie Ning ◽  
Gu Junjie ◽  
...  
Keyword(s):  
Carbon Source ◽  
Lithium Ion Batteries ◽  
Hydrothermal Method ◽  
High Performance ◽  
Carbon Coating ◽  
Lithium Iron Phosphate ◽  
Lithium Ion ◽  
Iron Phosphate ◽  
Phosphorus Source ◽  
Phosphorus Doped

A novel composite of LiFePO4 with phosphorus-doped carbon layers has been prepared via a simple hydrothermal method using glucose as the carbon source to generate a carbon coating and triphenylphosphine as the phosphorus source.

Modification of Cathode Material Lithium Iron Phosphate by Silicon Doping Using Solid State Reaction

2021 ◽  
Vol 1044 ◽  
pp. 73-79
Author(s):  
Iman Rahayu ◽  
Ulima A Suci ◽  
Fahmi Taufiqulhadi
Keyword(s):  
Solid State ◽  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Solid State Reaction ◽  
Lithium Iron Phosphate ◽  
Lithium Ion ◽  
Iron Phosphate ◽  
Xrd Analysis ◽  
Silicon Doping ◽  
Si Doped

Lithium iron phosphate (LiFePO4) based material is one of the most prospective candidates as a cathode material in lithium-ion batteries because of its lower cost, safer, and environmental benignity compared to lithium cobalt oxide (LiCoO2), which is commonly used for lithium-ion batteries manufacturing. However, its low conductivity is the obstacle of this material to solve, so that modification with the addition of silicon (Si) is expected to improve the electrochemical performance. Meanwhile, solid state reaction is considered simple and effective in LiFePO4 crystal growth process. Therefore, Si-doped LiFePO4 using solid state reaction in this research aims to study its structure and morphology as well as the effect of adding Si to its conductivity. The synthesis began with mixing LiH2PO4, Fe2O3, carbon black, and six-mole ratio variation of Si to LiFePO4 using agate with ethanol: acetone addition then dried in an oven at 80°C and heated at 550°C in a furnace for 6 hours under argon atmosphere and sintering temperature of 870°C for 16 hours with the same condition. The sample of 3% mole ratio performed the highest conductivity of all variations with 3.01 x 10-6 S.cm-1, and was identified as Li0.93Fe1.07P0.93O4Si0.7 with orthorhombic structure, Pnma space group (Ref. Code: ICSD 98-016-1792) with the highest peak at 2θ = 35.556° from XRD analysis with rectangular-like shape particle.

Effect of Na+ and K+ co-doping on the structure and electrochemical behaviors of LiFePO4/C cathode material for lithium-ion batteries

RSC Advances ◽  
2016 ◽  
Vol 6 (103) ◽  
pp. 101477-101484 ◽  
Author(s):  
Ali Reza Madram ◽  
Reza Daneshtalab ◽  
Mohammad Reza Sovizi
Keyword(s):  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Lithium Iron Phosphate ◽  
Sol Gel ◽  
Lithium Ion ◽  
Iron Phosphate ◽  
Electrochemical Behaviors ◽  
Gel Method ◽  
Co Doping ◽  
Co Doped

Lithium iron phosphate (LiFePO4) composites co-doped with Na+ and K+, Li1−x−yNaxKyFePO4/C (0 ≤ x ≤ 0.03, 0 ≤ y ≤ 0.03, x + y = 0.03), are synthesized through a sol–gel method and tested as a promising cathode material for lithium-ion batteries (LIBs).

Graphenised Lithium Iron Phosphate and Lithium Manganese Silicate Hybrid Cathodes: Potentials for Application in Lithium‐ion Batteries

2020 ◽  
Vol 32 (12) ◽  
pp. 2982-2999
Author(s):  
Zolani Myalo ◽  
Chinwe Oluchi Ikpo ◽  
Assumpta Chinwe Nwanya ◽  
Miranda Mengwi Ndipingwi ◽  
Samantha Fiona Duoman ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Iron Phosphate ◽  
Lithium Ion ◽  
Iron Phosphate ◽  
Manganese Silicate ◽  
Lithium Manganese

scholarly journals A Novel Pyrometallurgical Recycling Process for Lithium-Ion Batteries and Its Application to the Recycling of LCO and LFP

Metals ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 149
Author(s):  
Alexandra Holzer ◽  
Stefan Windisch-Kern ◽  
Christoph Ponak ◽  
Harald Raupenstrauch
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Iron Phosphate ◽  
Process Development ◽  
Removal Rate ◽  
Continuous Process ◽  
Lithium Ion ◽  
Iron Phosphate ◽  
Recycling Process ◽  
Subsequent Step ◽  
Pre Treatment

The bottleneck of recycling chains for spent lithium-ion batteries (LIBs) is the recovery of valuable metals from the black matter that remains after dismantling and deactivation in pre‑treatment processes, which has to be treated in a subsequent step with pyrometallurgical and/or hydrometallurgical methods. In the course of this paper, investigations in a heating microscope were conducted to determine the high-temperature behavior of the cathode materials lithium cobalt oxide (LCO—chem., LiCoO2) and lithium iron phosphate (LFP—chem., LiFePO4) from LIB with carbon addition. For the purpose of continuous process development of a novel pyrometallurgical recycling process and adaptation of this to the requirements of the LIB material, two different reactor designs were examined. When treating LCO in an Al2O3 crucible, lithium could be removed at a rate of 76% via the gas stream, which is directly and purely available for further processing. In contrast, a removal rate of lithium of up to 97% was achieved in an MgO crucible. In addition, the basic capability of the concept for the treatment of LFP was investigated whereby a phosphorus removal rate of 64% with a simultaneous lithium removal rate of 68% was observed.

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