TY - JOUR
T1 - Recycling Spent Lithium-Ion Batteries Using Waste Benzene-Containing Plastics: Synergetic Thermal Reduction and Benzene Decomposition
AU - Qiu, Baolong
AU - Liu, Mengjie
AU - Qu, Xin
AU - Zhang, Beilei
AU - Xie, Hongwei
AU - Wang, Dihua
AU - Lee, Lawrence Yoon Suk
AU - Yin, Huayi
N1 - Funding Information:
We greatly thank the financial support from the Fundamental Research Funds for the Central Universities (N2025034, N2025035), Xingliao Project (XLYC 1807042), and the 111 Project (B16009).
Publisher Copyright:
© 2023 American Chemical Society.
PY - 2023/5/16
Y1 - 2023/5/16
N2 - Spent lithium-ion batteries (LIBs) and benzene-containing polymers (BCPs) are two major pollutants that cause serious environmental burdens. Herein, spent LIBs and BCPs are copyrolyzed in a sealed reactor to generate Li2CO3, metals, and/or metal oxides without emitting toxic benzene-based gases. The use of a closed reactor allows the sufficient reduction reaction between the BCP-derived polycyclic aromatic hydrocarbon (PAH) gases and lithium transition metal oxides, achieving the Li recovery efficiencies of 98.3, 99.9, and 97.5% for LiCoO2, LiMn2O4, and LiNi0.6Co0.2Mn0.2O2, respectively. More importantly, the thermal decomposition of PAHs (e.g., phenol and benzene) is further catalyzed by the in situ generated Co, Ni, and MnO2 particles, which forms metal/carbon composites and thus prevent the emissions of toxic gases. Overall, the copyrolysis in a closed system paves a green way to synergistically recycle spent LIBs and handle waste BCPs.
AB - Spent lithium-ion batteries (LIBs) and benzene-containing polymers (BCPs) are two major pollutants that cause serious environmental burdens. Herein, spent LIBs and BCPs are copyrolyzed in a sealed reactor to generate Li2CO3, metals, and/or metal oxides without emitting toxic benzene-based gases. The use of a closed reactor allows the sufficient reduction reaction between the BCP-derived polycyclic aromatic hydrocarbon (PAH) gases and lithium transition metal oxides, achieving the Li recovery efficiencies of 98.3, 99.9, and 97.5% for LiCoO2, LiMn2O4, and LiNi0.6Co0.2Mn0.2O2, respectively. More importantly, the thermal decomposition of PAHs (e.g., phenol and benzene) is further catalyzed by the in situ generated Co, Ni, and MnO2 particles, which forms metal/carbon composites and thus prevent the emissions of toxic gases. Overall, the copyrolysis in a closed system paves a green way to synergistically recycle spent LIBs and handle waste BCPs.
KW - Li recovery
KW - polycyclic aromatic hydrocarbons degradation
KW - pyrolysis reduction
KW - Spent lithium-ion batteries
KW - waste plastics
UR - http://www.scopus.com/inward/record.url?scp=85159565599&partnerID=8YFLogxK
U2 - 10.1021/acs.est.2c09816
DO - 10.1021/acs.est.2c09816
M3 - Journal article
C2 - 37140343
AN - SCOPUS:85159565599
SN - 0013-936X
VL - 57
SP - 7599
EP - 7611
JO - Environmental Science and Technology
JF - Environmental Science and Technology
IS - 19
ER -