Enhanced Air Stability and High Li-Ion Conductivity of Li6.988P2.994Nb0.2S10.934O0.6 Glass–Ceramic Electrolyte for All-Solid-State Lithium–Sulfur Batteries

2020 ◽  
Vol 12 (19) ◽  
pp. 21548-21558
Author(s):  
Niaz Ahmad ◽  
Lei Zhou ◽  
Muhammad Faheem ◽  
Muhammad Khurram Tufail ◽  
Le Yang ◽  
...  
Keyword(s):  
Solid State ◽  
Glass Ceramic ◽  
Ion Conductivity ◽  
Ceramic Electrolyte ◽  
Lithium Sulfur Batteries ◽  
Li Ion ◽  
Lithium Sulfur

scholarly journals Flexible Quasi-Solid-State Composite Electrolyte of Poly (Propylene Glycol)-co-Pentaerythritol Triacry-Late/Li1.5Al0.5Ge1.5(PO4)3 for High-Performance Lithium-Sulfur Battery

Materials ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 1979
Author(s):  
Zekun Deng ◽  
Zhenyang Zheng ◽  
Wenhong Ruan ◽  
Mingqiu Zhang
Keyword(s):  
Solid State ◽  
Propylene Glycol ◽  
Specific Capacity ◽  
Ion Conductivity ◽  
Composite Electrolyte ◽  
Shuttle Effect ◽  
Electrochemical Window ◽  
Li Ion ◽  
Poly Propylene ◽  
Lithium Sulfur

With a higher theoretical specific capacity (1675 mAh g−1) and energy density (2600 Wh kg−1), the lithium-sulfur (Li-S) battery is considered as a promising candidate for a next-generation energy storage device. However, the shuttle effect of polysulfides as well as the large interfacial impedance between brittle solid electrolyte and electrodes lead to the capacity of the Li-S battery decaying rapidly, which limits the practical commercial applications of the Li-S battery. Herein, we reported a facile in situ ultraviolet (UV) curing method to prepare a flexible quasi-solid-state composite electrolyte (QSSCE) of poly(propylene glycol)-co-pentaerythritol triacrylate/Li1.5Al0.5Ge1.5(PO4)3 (PPG-co-PETA/LAGP). By combining the high Li-ion conductivity and mechanical strength of inorganic NASICON-structure LAGP and good flexibility of the crosslinked PPG-co-PETA with nanopore structure, the flexible QSSCE with 66.85 wt% LAGP exhibited high Li-ion conductivity of 5.95 × 10−3 S cm−1 at 25 °C, Li-ion transference number of 0.83 and wide electrochemical window of ~5.0 V (vs. Li/Li+). In addition, the application of QSSCE in the Li-S battery could suppress the shuttle effect of polysulfides effectively, thus the Li-S battery possessed the excellent electrochemical cyclic performance, showing the first-cycle discharge-specific capacity of 1508.1 mAh g−1, the capacity retention of 73.6% after 200 cycles with 0.25 C at 25 °C and good rate performance.

A new flame-retardant polymer electrolyte with enhanced Li-ion conductivity for safe lithium-sulfur batteries

2021 ◽  
Author(s):  
Hongping Li ◽  
Yixi Kuai ◽  
Jun Yang ◽  
Shin-ichi Hirano ◽  
Yanna Nuli ◽  
...  
Keyword(s):  
Flame Retardant ◽  
Polymer Electrolyte ◽  
Ion Conductivity ◽  
Lithium Sulfur Batteries ◽  
Li Ion ◽  
Lithium Sulfur

Dual Li-ion migration channels in ester-rich copolymer/ionic liquid quasi-solid-state electrolyte for high-performance Li-S batteries

2021 ◽  
Author(s):  
Xiaomin Cai ◽  
Bei Ye ◽  
Jianlong Ding ◽  
Ziyun Chi ◽  
Liping Sun ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Solid State ◽  
Polymer Electrolytes ◽  
High Performance ◽  
Ion Migration ◽  
Solid State Electrolyte ◽  
Lithium Sulfur Batteries ◽  
Li Ion ◽  
Lithium Sulfur

Solid-state polymer electrolytes are expected to fundamentally solve the instability and safety problems of liquid electrolytes for lithium sulfur batteries. Herein, ionic liquids were introduced on the basis of constructing...

Composite Electrolytes Based on Poly(Ethylene Oxide) and Lithium Borohydrides for All-Solid-State Lithium–Sulfur Batteries

2021 ◽  
Vol 9 (15) ◽  
pp. 5396-5404
Author(s):  
Xiang Zhang ◽  
Tengfei Zhang ◽  
Yifei Shao ◽  
Hailin Cao ◽  
Zhenhua Liu ◽  
...  
Keyword(s):  
Solid State ◽  
Ethylene Oxide ◽  
Composite Electrolytes ◽  
Lithium Sulfur Batteries ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene ◽  
Lithium Sulfur

Confining Sulfur in Porous Carbon by Vapor Deposition to Achieve High-Performance Cathode for All-Solid-State Lithium–Sulfur Batteries

2021 ◽  
pp. 413-418
Author(s):  
Atif S. Alzahrani ◽  
Mitsutoshi Otaki ◽  
Daiwei Wang ◽  
Yue Gao ◽  
Timothy S. Arthur ◽  
...  
Keyword(s):  
Solid State ◽  
Vapor Deposition ◽  
Porous Carbon ◽  
High Performance ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

scholarly journals Li2(BH4)(NH2) Nanoconfined in SBA-15 as Solid-State Electrolyte for Lithium Batteries

Nanomaterials ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 946
Author(s):  
Qianyi Yang ◽  
Fuqiang Lu ◽  
Yulin Liu ◽  
Yijie Zhang ◽  
Xiujuan Wang ◽  
...  
Keyword(s):  
Solid State ◽  
High Performance ◽  
Coulombic Efficiency ◽  
Specific Capacity ◽  
Transference Number ◽  
Electrochemical Stability ◽  
Ion Conductivity ◽  
Solid State Batteries ◽  
Li Ion ◽  
Conduction Properties

Solid electrolytes with high Li-ion conductivity and electrochemical stability are very important for developing high-performance all-solid-state batteries. In this work, Li2(BH4)(NH2) is nanoconfined in the mesoporous silica molecule sieve (SBA-15) using a melting–infiltration approach. This electrolyte exhibits excellent Li-ion conduction properties, achieving a Li-ion conductivity of 5.0 × 10−3 S cm−1 at 55 °C, an electrochemical stability window of 0 to 3.2 V and a Li-ion transference number of 0.97. In addition, this electrolyte can enable the stable cycling of Li|Li2(BH4)(NH2)@SBA-15|TiS2 cells, which exhibit a reversible specific capacity of 150 mAh g−1 with a Coulombic efficiency of 96% after 55 cycles.

Ionic liquid enabling stable interface in solid state lithium sulfur batteries working at room temperature

2018 ◽  
Vol 284 ◽  
pp. 662-668 ◽  
Author(s):  
Bin Sun ◽  
Kai Liu ◽  
Jialiang Lang ◽  
Minghao Fang ◽  
Yang Jin ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Solid State ◽  
Room Temperature ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur
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