A Li+ conductive metal organic framework electrolyte boosts the high-temperature performance of dendrite-free lithium batteries

2019 ◽  
Vol 7 (16) ◽  
pp. 9530-9536 ◽  
Author(s):  
Nan Chen ◽  
Yuejiao Li ◽  
Yujuan Dai ◽  
Wenjie Qu ◽  
Yi Xing ◽  
...  

Conventional electrolytes of Li metal batteries are highly flammable and volatile, which accelerates the consumption of lithium metal at high temperatures, resulting in catastrophic fires or explosions.

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.


2020 ◽  
Vol 8 (3) ◽  
pp. 1425-1431 ◽  
Author(s):  
Dongming Yin ◽  
Gang Huang ◽  
Shaohua Wang ◽  
Dongxia Yuan ◽  
Xuxu Wang ◽  
...  

A free-standing and integrated 3D nitrogen–carbon co-doped Cu nanorod arrays (3D NC/Cu) as a completely new current collector is in situ derived from the metal–organic framework (MOF) and can effectively address dendrite issues for lithium batteries.


2017 ◽  
Vol 8 (6) ◽  
pp. 4285-4291 ◽  
Author(s):  
Wen Liu ◽  
Yingying Mi ◽  
Zhe Weng ◽  
Yiren Zhong ◽  
Zishan Wu ◽  
...  

Stable-cycling Li metal anode is realized with a MOF layer regulating Li-ion transport and Li deposition via chemical interactions.


2020 ◽  
Vol 3 (4) ◽  
pp. 4007-4013 ◽  
Author(s):  
Hui Yang ◽  
Botong Liu ◽  
Joeseph Bright ◽  
Sujan Kasani ◽  
Jianhui Yang ◽  
...  

CrystEngComm ◽  
2018 ◽  
Vol 20 (45) ◽  
pp. 7395-7400 ◽  
Author(s):  
Dian Zhao ◽  
Huizhen Wang ◽  
Guodong Qian

A high sensitive, thermostable mixed lanthanide metal–organic framework, Eu0.19Tb0.81PDDI, was developed as a self-calibrated thermometer effective in the high temperature range of 313 to 473 K.


2014 ◽  
Vol 2 (26) ◽  
pp. 9948-9954 ◽  
Author(s):  
Claudio Gerbaldi ◽  
Jijeesh R. Nair ◽  
M. Anbu Kulandainathan ◽  
R. Senthil Kumar ◽  
Chiara Ferrara ◽  
...  

Al-based metal organic framework (MOF): a novel nanofiller for polymer electrolytes with outstanding moderate temperature ionic conductivity and long-term cycling stability.


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