TY - JOUR
T1 - In situ forming LiF nanodecorated electrolyte/electrode interfaces for stable all-solid-state batteries
AU - Shi, X.
AU - Pang, Y.
AU - Wang, B.
AU - Sun, H.
AU - Wang, X.
AU - Li, Y.
AU - Yang, J.
AU - Li, H. W.
AU - Zheng, S.
N1 - Funding Information:
The authors gratefully acknowledge the support of the National Natural Science Foundation of China (51671135, 51971146, 51971147), the Innovation Program of Shanghai Municipal Education Commission (2019-01-07-00-07-E00015), the Program of Shanghai Subject Chief Scientist (17XD1403000), the Shanghai Outstanding Academic Leaders Plan, the Guangdong Provincial Key Laboratory of Advance Energy Storage Materials (AESM201712) and JSPS KAKENHI (Grant Number 18H01738).
Funding Information:
The authors gratefully acknowledge the support of the National Natural Science Foundation of China ( 51671135 , 51971146 , 51971147 ), the Innovation Program of Shanghai Municipal Education Commission ( 2019-01-07-00-07-E00015 ), the Program of Shanghai Subject Chief Scientist ( 17XD1403000 ), the Shanghai Outstanding Academic Leaders Plan , the Guangdong Provincial Key Laboratory of Advance Energy Storage Materials ( AESM201712 ) and JSPS KAKENHI (Grant Number 18H01738 ).
Publisher Copyright:
© 2020 Elsevier Ltd
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/6
Y1 - 2020/6
N2 - The unstable solid electrolyte/electrode interface with dendrite growth and resistance increase significantly reduces the safety and efficiency of all-solid-state batteries. Here, we propose an ‘in situ LiF nanodecoration’ approach to address this issue. By uniform dispersion of ultrafine LiF nanoparticles in amorphous Li2B12H12 matrix that is in situ formed via a solid-state reaction, the resulting composite as electrolyte exhibits favorable Li-ion conductivity (5 × 10−4 S cm−1) with low electronic conductivity (9 × 10−10 S cm−1) at 75 °C. More importantly, this composite electrolyte shows superior electrode compatibility by forming stable electrolyte/electrode interfaces, as demonstrated by high Li dendrite suppression capability (critical current density: 3.6 mA cm−2) and small interfacial resistance (area specific resistance after 10 cycles: 746 Ω cm2) at 75 °C, which further enables the stable cycling of Li–LiFePO4 all-solid-state batteries. This work paves a way for using in- situ nanodecoration chemistry for the design of safe and high efficiency all-solid-state batteries.
AB - The unstable solid electrolyte/electrode interface with dendrite growth and resistance increase significantly reduces the safety and efficiency of all-solid-state batteries. Here, we propose an ‘in situ LiF nanodecoration’ approach to address this issue. By uniform dispersion of ultrafine LiF nanoparticles in amorphous Li2B12H12 matrix that is in situ formed via a solid-state reaction, the resulting composite as electrolyte exhibits favorable Li-ion conductivity (5 × 10−4 S cm−1) with low electronic conductivity (9 × 10−10 S cm−1) at 75 °C. More importantly, this composite electrolyte shows superior electrode compatibility by forming stable electrolyte/electrode interfaces, as demonstrated by high Li dendrite suppression capability (critical current density: 3.6 mA cm−2) and small interfacial resistance (area specific resistance after 10 cycles: 746 Ω cm2) at 75 °C, which further enables the stable cycling of Li–LiFePO4 all-solid-state batteries. This work paves a way for using in- situ nanodecoration chemistry for the design of safe and high efficiency all-solid-state batteries.
UR - http://www.scopus.com/inward/record.url?scp=85083424004&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85083424004&partnerID=8YFLogxK
U2 - 10.1016/j.mtnano.2020.100079
DO - 10.1016/j.mtnano.2020.100079
M3 - Article
AN - SCOPUS:85083424004
VL - 10
JO - Materials Today Nano
JF - Materials Today Nano
SN - 2588-8420
M1 - 100079
ER -