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Applying spent lithium iron phosphate battery as raw material, valuable metals in spent lithium ion battery were effectively recovered through separation of active material, selective leaching, and stepwise chemical precipitation. Using stoichiometric Na 2 S 2 O 8 as an oxidant and adding low-concentration H 2 SO 4 as a leaching agent was proposed.
At present, there are two methods to recycle lithium iron phosphate batteries: one is the direct repair of the lithium iron phosphate cathode material; the second is the wet recovery (the precious elements are recovered separately).
On the other hand, it contains valuable secondary resources, such as lithium, phosphorous, and carbon. Given the low recovery values of iron, currently, lithium is recovered from the active cathode materials of LFP batteries via selective leaching .
Given the low recovery values of iron, currently, lithium is recovered from the active cathode materials of LFP batteries via selective leaching . The core idea of this method is to oxidize the ferrous ions in lithium iron phosphate to ferric ions.
Experimental results showed that from lithium iron phosphate cathode powder under the optimized conditions i.e., 30 min reaction time, 10% pulp density, 1.0 mol/L HCOOH, 10% H 2 O 2, and 30 oC, 99.98% lithium was selectively leached.
In this research, an effective and sustainable approach for selective leaching of lithium from spent LiFePO 4 batteries was demonstrated. By properly adjusting or controlling the oxidative state and proton activity of the leaching solution, lithium was found to be selectively leached with a high recovery efficiency.
The conventional leaching methods of the spent LIBs recovery include hydrometallurgy and pyrometallurgy processes. ... The word lithium-ion battery is commonly …
This project targets the iron phosphate (FePO4) derived from waste lithium iron phosphate (LFP) battery materials, proposing a direct acid leaching purification process to …
In this study, mild and efficient, highly selective leaching of lithium from spent lithium iron phosphate was achieved using potassium pyrosulfate (K 2 S 2 O 7) and hydrogen peroxide (H …
In this paper we demonstrate the rst low temperature, single-step regeneration of lithium iron phosphate cathode material using simple, common starting materials. There is also the potential to ...
In this research, an effective and sustainable approach for selective leaching of lithium from spent LiFePO 4 batteries was demonstrated. By properly adjusting or controlling the oxidative state and proton activity of the …
In this research, an effective and sustainable approach for selective leaching of lithium from spent LiFePO 4 batteries was demonstrated. By properly adjusting or controlling …
In this paper we demonstrate the rst low temperature, single-step regeneration of lithium iron phosphate cathode material using simple, common starting materials. There is …
Applying spent lithium iron phosphate battery as raw material, valuable metals in spent lithium ion battery were effectively recovered through separation of active material, …
Selective leaching methods, particularly those for lithium, have gained significant attention and research as green, simple, low-cost, and sustainable approaches for …
The lithium recovery yield was close to 80%. Key words: lithium iron phosphate batteries; selective leaching; recovery; sodium persulfate; lithium carbonate Cite this article as: LI Hao …
The removal of trivalent iron and aluminum was studied from synthetic Li-ion battery leach solution by phosphate and hydroxide precipitation (pH 2.5–4.25, t = 3 h, T = 60 °C).
Selective leaching methods, particularly those for lithium, have gained significant attention and research as green, simple, low-cost, and sustainable approaches for …
The leaching and recovery of spent lithium batteries (SLiB) using deep eutectic solvents (DESs) have received widespread attention. This review summarizes the latest …
Xin, B. et al. Bioleaching mechanism of Co and Li from spent lithium-ion battery by the mixed culture of acidophilic sulfur-oxidizing and iron-oxidizing bacteria. Bioresour. …
With the arrival of the scrapping wave of lithium iron phosphate (LiFePO 4) batteries, a green and effective solution for recycling these waste batteries is urgently required.Reasonable recycling …
The leaching and recovery of spent lithium batteries (SLiB) using deep eutectic solvents (DESs) have received widespread attention. This review summarizes the latest …
The direct repair method applies high temperature sintering to convert the used lithium iron phosphate cathode powder into fresh lithium iron phosphate suitable for re-use in …
Lithium iron phosphate (LiFePO 4) ... It has been reported that the hydrometallurgical method always uses acid leaching and leachate purifying to extract …
Given the low recovery values of iron, currently, lithium is recovered from the active cathode materials of LFP batteries via selective leaching . The core idea of this method …
Acid-free and selective extraction of lithium from spent lithium iron phosphate batteries via a mechanochemically induced isomorphic substitution [J]. Environmental Science …
A new recovery method for fast and efficient selective leaching of lithium from lithium iron phosphate cathode powder is proposed. Lithium is expelled out of the Oliver …
However, recycling methods targeting LFP batteries, especially production scraps, are still underdeveloped. This study investigated the extraction of iron phosphate and …
Nowadays, LFP is synthesized by solid-phase and liquid-phase methods (Meng et al., 2023), together with the addition of carbon coating, nano-aluminum powder, and …