| Title | Self-activation of Ferro-chemistry based advanced oxidation process towards in-situ recycling of spent LiFePO4 batteries |
|---|---|
| ID_Doc | 9653 |
| Authors | Chen, XP; Yuan, L; Yan, SX; Ma, X |
| Title | Self-activation of Ferro-chemistry based advanced oxidation process towards in-situ recycling of spent LiFePO4 batteries |
| Year | 2023 |
| Published | |
| Abstract | Increasing application of lithium iron phosphate (LiFePO4) battery in electric vehicles (EVs) and hybrid electric vehicles (HEVs) is boosting the generation of spent lithium iron phosphate batteries. Sustainable and costeffective recycling these batteries with less value-added metals is crucial for the fulfillment of circular economy society. Here, in-situ advanced oxidation metallurgy technology was innovatively proposed towards selective extraction of Li from LiFePO4 by Fenton oxidation, instead of conventional metallurgical processes. Li can be completely liberated without destructing olive type structure of LiFePO4 with the formation of FePO4 precursors. Mechanism revealed by DFT calculations and chemical reaction analysis indicates that the oxidation of Fe(II) in LiFePO4 and release of Li+ is mainly initiated by the rapid attack of a large number of & BULL;OH during advanced oxidation process. Liberated Li+ was recovered as Li2CO3 and used with FePO4 as precursors to refabricate LiFePO4. The recovered LiFePO4 shows sound electrochemical performances with initial discharge capacity of 138.9 mAh/g at 0.5C and capacity retention of 93.6% after 50 cycles. This study provides a green and efficient alternative for the selective recycling of Li from spent LiFePO4 battery based on its inherent structure and characteristics of target recycling materials with reduced chemical consumption, high efficiency and simplified recycling process. |
Similar Articles
| ID | Score | Article |
|---|---|---|
10839
|
Chen, ZM; Shen, CQ; Liu, FP; Wang, JL Selective Separation and Recovery of Li from Spent LiFePO4 Cathode Materials by Oxidation Roasting Followed by Low-Acid Pressure Leaching(2023)Metals, 13, 11 | |
| 10525
|
Liu, K; Wang, JX; Wang, MM; Zhang, QZ; Cao, Y; Huang, LB; Valix, M; Tsang, DCW Low-carbon recycling of spent lithium iron phosphate batteries via a hydro-oxygen repair route(2023)Green Chemistry, 25, 17 | |
| 29579
|
Zhou, HX; Zhang, Y; Li, LQ; Cao, ZF Integrated recycling of valuable elements from spent LiFePO4 batteries: a green closed-loop process(2023)Green Chemistry, 25.0, 19 | |
| 22475
|
Lan, J; Hou, HY; Yu, XH; Rong, J; Huang, BX Insights into the role of Li2FeP2O7 phase in LiFePO4/C composite cathode(2022)Ionics, 28.0, 11 | |
| 17170
|
Yadav, P; Jie, CJ; Tan, S; Srinivasan, M Recycling of cathode from spent lithium iron phosphate batteries(2020) | |
| 21575
|
Li, DD; Hou, HY; Liu, XX; Yao, Y; Dai, ZP; Yu, CY The synchronous reutilization of the expired ferrous sulfate granules and waste Li foils for LiFePO4/C cathode(2018)International Journal Of Hydrogen Energy, 43.0, 49 | |
| 26309
|
Vasconcelos, DD; Tenorio, JAS; Botelho, AB; Espinosa, DCR Circular Recycling Strategies for LFP Batteries: A Review Focusing on Hydrometallurgy Sustainable Processing(2023)Metals, 13, 3 | |
| 21477
|
Hou, HY; Li, DD; Liu, XX; Yao, Y; Dai, ZP; Yu, CY Recovery of waste Li foils from spent experimental Li-anode coin cells for LiFePO4/C cathode(2018) | |
| 27817
|
Gucciardi, E; Galceran, M; Bustinza, A; Bekaert, E; Casas-Cabanas, M Sustainable paths to a circular economy: reusing aged Li-ion FePO4 cathodes within Na-ion cells(2021)Journal Of Physics-Materials, 4.0, 3 | |
| 27087
|
Lan, J; Hou, HY; Huang, BX; Li, H; Li, JK The positive role of vitamin C in spindle-like LiFePO4/C cathode derived from two wastes(2022)Ionics, 28.0, 4 |