TY - JOUR
T1 - A self-smoothing Li-metal anode enabled
T2 - Via a hybrid interface film
AU - Wang, Huirong
AU - Liu, Mingzhu
AU - Wang, Xianshu
AU - Wang, Xianshu
AU - Zhang, Wenguang
AU - Che, Yanxie
AU - Chen, Ling
AU - Wu, Yuping
AU - Wu, Yuping
AU - Li, Weishan
AU - Li, Weishan
N1 - Publisher Copyright:
© 2020 The Royal Society of Chemistry.
PY - 2020/6/28
Y1 - 2020/6/28
N2 - Li-metal is an ideal anode for high energy batteries, but uncontrollable dendrite growth restricts its practical application in rechargeable high energy batteries. To address this issue, we propose a novel strategy by constructing a hybrid interface film on Li metal. The film is formed by simply dropping a LiTFSI-and AgNO3-containing solution on Li metal, and it mainly consists of AgxLiy, Ag2S, LiF, and Li2O. These hybrid compositions provide the Li anode with a lithiophilic surface, low Li depositing/stripping overpotential and protective interface film, yielding a 'self-spreading' deposition behavior of Li and excellent cycling stability of Li-metal batteries. When the Li anode modified with this hybrid interface film is matched with an LFP cathode, the initial coulombic efficiency of the battery cycled at 1C at 60 °C improves from 80% to 95%, while when matched with an NCA cathode, the capacity retention of the battery improves from 36% to 73% after 500 cycles at 1C at-10 °C.
AB - Li-metal is an ideal anode for high energy batteries, but uncontrollable dendrite growth restricts its practical application in rechargeable high energy batteries. To address this issue, we propose a novel strategy by constructing a hybrid interface film on Li metal. The film is formed by simply dropping a LiTFSI-and AgNO3-containing solution on Li metal, and it mainly consists of AgxLiy, Ag2S, LiF, and Li2O. These hybrid compositions provide the Li anode with a lithiophilic surface, low Li depositing/stripping overpotential and protective interface film, yielding a 'self-spreading' deposition behavior of Li and excellent cycling stability of Li-metal batteries. When the Li anode modified with this hybrid interface film is matched with an LFP cathode, the initial coulombic efficiency of the battery cycled at 1C at 60 °C improves from 80% to 95%, while when matched with an NCA cathode, the capacity retention of the battery improves from 36% to 73% after 500 cycles at 1C at-10 °C.
UR - http://www.scopus.com/inward/record.url?scp=85087103404&partnerID=8YFLogxK
U2 - 10.1039/d0ta01060j
DO - 10.1039/d0ta01060j
M3 - 文章
AN - SCOPUS:85087103404
SN - 2050-7488
VL - 8
SP - 12045
EP - 12054
JO - Journal of Materials Chemistry A
JF - Journal of Materials Chemistry A
IS - 24
ER -
