In Situ Visualization of Lithium Penetration through Solid Electrolyte and Dead Lithium Dynamics in Solid-State Lithium Metal Batteries

ACS Nano ◽  
2021 ◽  
Author(s):  
Haiming Sun ◽  
Qiunan Liu ◽  
Jingzhao Chen ◽  
Yanshuai Li ◽  
Hongjun Ye ◽  
...  
Nanomaterials ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 736
Author(s):  
Man Li ◽  
Tao Chen ◽  
Seunghyun Song ◽  
Yang Li ◽  
Joonho Bae

The challenge of safety problems in lithium batteries caused by conventional electrolytes at high temperatures is addressed in this study. A novel solid electrolyte (HKUST-1@IL-Li) was fabricated by immobilizing ionic liquid ([EMIM][TFSI]) in the nanopores of a HKUST-1 metal–organic framework. 3D angstrom-level ionic channels of the metal–organic framework (MOF) host were used to restrict electrolyte anions and acted as “highways” for fast Li+ transport. In addition, lower interfacial resistance between HKUST-1@IL-Li and electrodes was achieved by a wetted contact through open tunnels at the atomic scale. Excellent high thermal stability up to 300 °C and electrochemical properties are observed, including ionic conductivities and Li+ transference numbers of 0.68 × 10-4 S·cm-1 and 0.46, respectively, at 25 °C, and 6.85 × 10-4 S·cm-1 and 0.68, respectively, at 100 °C. A stable Li metal plating/stripping process was observed at 100 °C, suggesting an effectively suppressed growth of Li dendrites. The as-fabricated LiFePO4/HKUST-1@IL-Li/Li solid-state battery exhibits remarkable performance at high temperature with an initial discharge capacity of 144 mAh g-1 at 0.5 C and a high capacity retention of 92% after 100 cycles. Thus, the solid electrolyte in this study demonstrates promising applicability in lithium metal batteries with high performance under extreme thermal environmental conditions.


2021 ◽  
pp. 139767
Author(s):  
Guiye Yang ◽  
Yu Zhang ◽  
Zhikun Guo ◽  
Chenyang Zhao ◽  
Xiaoming Bai ◽  
...  

2021 ◽  
Vol MA2021-02 (3) ◽  
pp. 365-365
Author(s):  
Jung Hwi Cho ◽  
Kun Joong Kim ◽  
Srinath Chakravarthy ◽  
Xingcheng Xiao ◽  
Jennifer L.M. Rupp ◽  
...  

2020 ◽  
Vol 8 (35) ◽  
pp. 18043-18054
Author(s):  
Dechao Zhang ◽  
Xijun Xu ◽  
Xinyue Huang ◽  
Zhicong Shi ◽  
Zhuosen Wang ◽  
...  

A flexible composite solid electrolyte has been successfully designed. Benefitting from the synergistic effect of the organic–inorganic complex, such PBL-CSE membrane shows superior electrochemical properties and interface stability.


2021 ◽  
Vol 366 ◽  
pp. 137348
Author(s):  
Shimelis Lemma Beshahwured ◽  
Yi-Shiuan Wu ◽  
She-huang Wu ◽  
Wen-Chen Chien ◽  
Rajan Jose ◽  
...  

2020 ◽  
Vol 2 (8) ◽  
pp. 880-886 ◽  
Author(s):  
Naoto Tanibata ◽  
Shuta Takimoto ◽  
Koki Nakano ◽  
Hayami Takeda ◽  
Masanobu Nakayama ◽  
...  

2020 ◽  
Vol 8 (7) ◽  
pp. 3892-3900 ◽  
Author(s):  
Zhuo Li ◽  
Hui-Xin Xie ◽  
Xing-Yan Zhang ◽  
Xin Guo

In situ polymerization creates composite electrolytes with broad electrochemical windows and conformal interfaces with electrodes, resulting in high-performance solid-state NCM-Li batteries.


Nano Energy ◽  
2019 ◽  
Vol 63 ◽  
pp. 103895 ◽  
Author(s):  
Quan Li ◽  
Tiancheng Yi ◽  
Xuelong Wang ◽  
Hongyi Pan ◽  
Baogang Quan ◽  
...  

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