A flexible three-dimensional composite nanofiber enhanced quasi-solid electrolyte for high-performance lithium metal batteries

2021 ◽  
Author(s):  
Shuyuan Li ◽  
Nianwu Li ◽  
Chunwen Sun
Keyword(s):  
Solid State ◽  
Solid Electrolyte ◽  
Discharge Capacity ◽  
High Performance ◽  
Three Dimensional ◽  
Lithium Metal ◽  
Capacity Retention ◽  
Solid State Electrolyte ◽  
Lithium Metal Batteries ◽  
Composite Nanofiber

A quasi-solid-state electrolyte based on LATP-PVDF-HFP nanofiber matrix and gel is proposed. The fabricated battery exhibits a good discharge capacity of 146.6 mA h g−1 at 2C, while the capacity retention can reach 97% after 300 cycles at 0.5C.

Highly Conjugated Three-Dimensional Covalent Organic Frame- works with Enhanced Li-ion Conductivity as Solid-State Electrolytes for High-Performance Lithium Metal Batteries

2022 ◽  
Author(s):  
Shi Wang ◽  
Xiang-Chun Li ◽  
Tao Cheng ◽  
Yuan-Yuan Liu ◽  
Qiange Li ◽  
...  
Keyword(s):  
Solid State ◽  
Ion Transport ◽  
High Performance ◽  
Three Dimensional ◽  
Ion Conductivity ◽  
Covalent Organic Frameworks ◽  
Lithium Metal ◽  
Lithium Metal Batteries ◽  
Li Ion ◽  
Solid State Electrolytes

Covalent organic frameworks (COFs) with well-tailored channels have the potential to efficiently transport ions yet remain to be explored. The ion transport capability is generally limited due to the lack...

scholarly journals HKUST-1@IL-Li Solid-state Electrolyte with 3D Ionic Channels and Enhanced Fast Li+ Transport for Lithium Metal Batteries at High Temperature

Nanomaterials ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 736
Author(s):  
Man Li ◽  
Tao Chen ◽  
Seunghyun Song ◽  
Yang Li ◽  
Joonho Bae
Keyword(s):  
High Temperature ◽  
Solid State ◽  
Solid Electrolyte ◽  
Metal Organic Framework ◽  
Ionic Channels ◽  
Transference Numbers ◽  
Lithium Metal ◽  
Lithium Metal Batteries ◽  
Metal Organic ◽  
Organic Framework

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.

Interface engineering of inorganic solid-state electrolytes for high-performance lithium metal batteries

2020 ◽  
Vol 13 (11) ◽  
pp. 3780-3822 ◽  
Author(s):  
Xianguang Miao ◽  
Huiyang Wang ◽  
Rui Sun ◽  
Chengxiang Wang ◽  
Zhiwei Zhang ◽  
...  
Keyword(s):  
Solid State ◽  
High Performance ◽  
Lithium Metal ◽  
Interface Engineering ◽  
Lithium Metal Batteries ◽  
Solid State Electrolytes

This review presents the mechanisms, challenges, strategies, and perspectives in the interface engineering of inorganic-based solid-state Li metal batteries.

High-performance polymeric ionic liquid–silica hybrid ionogel electrolytes for lithium metal batteries

2016 ◽  
Vol 4 (36) ◽  
pp. 13822-13829 ◽  
Author(s):  
Xiaowei Li ◽  
Sijian Li ◽  
Zhengxi Zhang ◽  
Jun Huang ◽  
Li Yang ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Solid State ◽  
High Performance ◽  
High Capacity ◽  
Electrochemical Stability ◽  
Rate Performance ◽  
Lithium Metal ◽  
Polymeric Ionic Liquid ◽  
Lithium Metal Batteries ◽  
Silica Hybrid

Hybrid ionogel electrolytes have high thermal and electrochemical stability, good ionic conductivity, and potential to suppress Li dendrite formation. Solid-state lithium metal batteries with hybrid electrolytes reveal high capacity and remarkable rate performance.

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