1. Revealing the delithiation process of spent LiMn 2 O 4 and LiNi 0.6 Co 0.2 Mn 0.2 O 2 batteries during the biomass-assisted gasthermal and carbothermal reduction.
- Author
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Zhou F, Ma J, Wang H, Cai M, Qu X, Zhao J, Wang D, Cai Y, Wang D, and Yin H
- Abstract
The utilization of biomass-assisted pyrolysis in the recycling of spent lithium-ion batteries has emerged as a promising and reliable process. This article furnishes theoretical underpinnings and analytical insights into this method, showcasing sawdust pyrolysis reduction as an efficient means to recycle spent LiMn
2 O4 and LiNi0.6 Co0.2 Mn0.2 O2 batteries. Through advanced thermogravimetry-gas chromatography-mass spectrometry analysis complemented by traditional thermodynamic demonstration, the synergistic effects of biomass pyrolysis reduction are elucidated, with minor autodecomposition and major carbothermal and gasthermal reduction pathways identified. The controlled manipulation of transition metals has demonstrated the capability to modulate surface pyrolysis gas catalytic reactions and facilitate the preparation of composite materials with diverse morphologies. Optimization of process conditions has culminated in recovery efficiency exceeding 99.0 % for LiMn2 O4 and 99.5 % for LiNi0.6 Co0.2 Mn0.2 O2 . Economic and environmental analyses underscore the advantages of biomass reduction and recycling for these two types of spent LIBs: low energy consumption, environmental compatibility, and high economic viability., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier B.V. All rights reserved.)- Published
- 2024
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