TY - JOUR
T1 - Engineering interfacial adhesion for high-performance lithium metal anode
AU - XU, Bingqing
AU - LIU, Zhe
AU - LI, Jiangxu
AU - HUANG, Xin
AU - QIE, Boyu
AU - GONG, Tianyao
AU - TAN, Laiyuan
AU - YANG, Xiujia
AU - PALEY, Daniel
AU - DONTIGNY, Martin
AU - ZAGHIB, Karim
AU - LIAO, Xiangbiao
AU - CHENG, Qian
AU - ZHAI, Haowei
AU - CHEN, Xi
AU - CHEN, Long-Qing
AU - NAN, Ce-Wen
AU - LIN, Yuan-Hua
AU - YANG, Yuan
N1 - Publisher Copyright:
© 2019 Elsevier Ltd
PY - 2020/1
Y1 - 2020/1
N2 - Suppressing lithium dendrites in carbonate electrolyte remains a grand challenge for high voltage lithium metal batteries. The role of adhesion between the interfacial layer and the lithium metal in controlling lithium growth is often overlooked. Here, we find that the adhesion energy significantly influences lithium dendrite growth by the phase-field simulations, and LiAl is an attractive material with strong adhesion with lithium metal by density functional theory (DFT) calculations. Then a simple solution process is developed to form conformal nanostructured LiAl interfacial layer on the lithium metal surface. With the nanostructured LiAl alloy-based interfacial layer, the Li/Li symmetric cell can be cycled stably for more than 1100 times at 5 mA/cm2, 1 mAh/cm2 with a low overpotential of 170 mV. For the LiNi1/3Co1/3Mn1/3O2/Li full cell, this interfacial layer improves the capacity retention from 59.8% to 88.7% for 120 cycles at 1 C rate, and for the LiFePO4/Li system, the modified lithium anode also improves capacity retention from 79.5% to 99.4% after 150 cycles. This study represents a new approach to enhance the performance of lithium anode for rechargeable batteries with high voltage and high energy density. © 2019 Elsevier Ltd
AB - Suppressing lithium dendrites in carbonate electrolyte remains a grand challenge for high voltage lithium metal batteries. The role of adhesion between the interfacial layer and the lithium metal in controlling lithium growth is often overlooked. Here, we find that the adhesion energy significantly influences lithium dendrite growth by the phase-field simulations, and LiAl is an attractive material with strong adhesion with lithium metal by density functional theory (DFT) calculations. Then a simple solution process is developed to form conformal nanostructured LiAl interfacial layer on the lithium metal surface. With the nanostructured LiAl alloy-based interfacial layer, the Li/Li symmetric cell can be cycled stably for more than 1100 times at 5 mA/cm2, 1 mAh/cm2 with a low overpotential of 170 mV. For the LiNi1/3Co1/3Mn1/3O2/Li full cell, this interfacial layer improves the capacity retention from 59.8% to 88.7% for 120 cycles at 1 C rate, and for the LiFePO4/Li system, the modified lithium anode also improves capacity retention from 79.5% to 99.4% after 150 cycles. This study represents a new approach to enhance the performance of lithium anode for rechargeable batteries with high voltage and high energy density. © 2019 Elsevier Ltd
KW - Density functional theory (DFT) calculations
KW - Interfacial engineering
KW - Lithium metal anode
KW - Phase-field simulation
KW - Solid electrolyte interphase
UR - http://www.scopus.com/inward/record.url?scp=85075364911&partnerID=8YFLogxK
U2 - 10.1016/j.nanoen.2019.104242
DO - 10.1016/j.nanoen.2019.104242
M3 - Journal Article (refereed)
SN - 2211-2855
VL - 67
JO - Nano Energy
JF - Nano Energy
M1 - 104242
ER -