Self-powered recycling of spent lithium iron phosphate batteries via triboelectric nanogenerator

Abstract

A self-powered system composed of an electrochemical recycling reactor and a triboelectric nanogenerator is proposed for recycling spent lithium-ion battery with the advantages of high purity, self-powering, simplified procedure, and high profit.

Facile and sustainable recovery of spent LiFePO4 battery cathode materials in a Ca(ClO)2 system

“…During the activation process, the Li–O bond in LiFePO 4 breaks and releases Li + , and ClO − is reduced back to Cl − . 47 The released Li + then reacts with free Cl − , which is dissolved in the solution by water leaching, and the LiCl product is produced through evaporation and crystallization. The reaction process is shown in eqn (7) and (8).…”

Recent Progress of Solid–Liquid Interface-Mediated Contact-Electro-Catalysis

“…On the other hand, combined with the TENG, Zhang et al 101 have developed an innovative system for recycling used batteries, achieving high purities (over 90%) in the recovery of lithium carbonate and lithium iron phosphate, as shown in Figure 6c. Specifically, an electrochemical method is employed to oxidize brine water utilizing the generated Cl − /ClO − redox pair to recover lithium iron phosphate, which serves as the cathode material in lithium-ion batteries (Figure 6d).…”

“…Copyright 2023 Springer Nature. (c, d) Reproduced with permission from ref . Copyright 2023 Royal Society of Chemistry (RSC), RSC Publishing.…”

Coupling Ferricyanide/Ferrocyanide Redox Mediated Recycling Spent LiFePO4 with Hydrogen Production

“…The recycling of approximately 23 tons of spent LFP batteries can yield one ton of Li, whereas it would require 750 tons or 250 tons of brine or ore, respectively, to obtain the same amount. This considerable disparity in quantities emphasizes the superior efficiency and economic value of Li recovery through the recycling of spent LFP batteries [25–27] . Meanwhile, the relatively low cost of spent LFP batteries further reinforces their potential for efficient recovery through cost‐effective methods [20] .…”

“…This considerable disparity in quantities emphasizes the superior efficiency and economic value of Li recovery through the recycling of spent LFP batteries. [25][26][27] Meanwhile, the relatively low cost of spent LFP batteries further reinforces their potential for efficient recovery through costeffective methods. [20] Consequently, recycling these LFP batteries not only yields environmental benefits but also carries significant economic value.…”