TY - JOUR
T1 - Application of a Flow-Type Electrochemical Lithium Recovery System with λ-MnO2/LiMn2O4
T2 - Experiment and Simulation
AU - Joo, Hwajoo
AU - Jung, Seon Yeop
AU - Kim, Seoni
AU - Ahn, Kyung Hyun
AU - Ryoo, Won Sun
AU - Yoon, Jeyong
N1 - Funding Information:
This research was supported by the Technology Innovation Program (10082572, Development of Low Energy Desalination Water Treatment Engineering Package System for Industrial Recycle Water Production) funded by the Ministry of Trade, Industry & Energy (MOTIE, Korea) and the National Research Foundation of Korea (NRF) funded by the Korea government (MEST and MSIT, Korea) (NRF-2016R1D1A1A02937469 and NRF-2018R1A5A1024127).
Publisher Copyright:
Copyright © 2020 American Chemical Society.
PY - 2020/7/6
Y1 - 2020/7/6
N2 - Due to the rapid growth of the global electric vehicle and electronics markets, lithium has become an indispensable resource for our lifestyle, and numerous methods for securing lithium are being actively attempted. For fast and environment-friendly lithium extraction, the electrochemical lithium recovery (ELR) system was studied in recent years. However, there are a limited number of studies regarding the system behavior and most of them are focused on a batch operation, which is far from practical usage. In this study, a flow-type rocking-chair ELR system based on the λ-MnO2/LiMn2O4 electrode pair is proposed for efficient recovery of lithium ions from influents. A lab-scale electrochemical experiment and a two-dimensional numerical simulation are performed to comprehensively analyze the system behavior. It is confirmed that lithium can be simultaneously captured and released at each electrode without any extra electrode regeneration steps. Apart from identifying its behavior experimentally, the spatiotemporal concentration distribution of Li+ in the separator channel is analyzed through numerical simulation. In our system, Li+ is found to be successfully recovered from the source with an energy consumption of 0.56 Wh mol-1 at 6.25 × 10-2 mA cm-2.
AB - Due to the rapid growth of the global electric vehicle and electronics markets, lithium has become an indispensable resource for our lifestyle, and numerous methods for securing lithium are being actively attempted. For fast and environment-friendly lithium extraction, the electrochemical lithium recovery (ELR) system was studied in recent years. However, there are a limited number of studies regarding the system behavior and most of them are focused on a batch operation, which is far from practical usage. In this study, a flow-type rocking-chair ELR system based on the λ-MnO2/LiMn2O4 electrode pair is proposed for efficient recovery of lithium ions from influents. A lab-scale electrochemical experiment and a two-dimensional numerical simulation are performed to comprehensively analyze the system behavior. It is confirmed that lithium can be simultaneously captured and released at each electrode without any extra electrode regeneration steps. Apart from identifying its behavior experimentally, the spatiotemporal concentration distribution of Li+ in the separator channel is analyzed through numerical simulation. In our system, Li+ is found to be successfully recovered from the source with an energy consumption of 0.56 Wh mol-1 at 6.25 × 10-2 mA cm-2.
KW - Electrochemical lithium recovery
KW - Flow-type reactor
KW - Lithium ion battery
KW - Lithium manganese oxide
KW - Two-dimensional numerical simulation
UR - http://www.scopus.com/inward/record.url?scp=85091189230&partnerID=8YFLogxK
U2 - 10.1021/acssuschemeng.9b07427
DO - 10.1021/acssuschemeng.9b07427
M3 - Article
AN - SCOPUS:85091189230
SN - 2168-0485
VL - 8
SP - 9622
EP - 9631
JO - ACS Sustainable Chemistry and Engineering
JF - ACS Sustainable Chemistry and Engineering
IS - 26
ER -
