Comparison of Li+ -ion conductivity in linear and crosslinked poly(ethylene oxide)

2018 ◽  
Vol 57 (1) ◽  
pp. 21-28 ◽  
Author(s):  
Nazmul Hasan ◽  
Martin Pulst ◽  
Muhammad Haris Samiullah ◽  
Jörg Kressler
2019 ◽  
Vol 116 (38) ◽  
pp. 18815-18821 ◽  
Author(s):  
Henghui Xu ◽  
Po-Hsiu Chien ◽  
Jianjian Shi ◽  
Yutao Li ◽  
Nan Wu ◽  
...  

Flexible and low-cost poly(ethylene oxide) (PEO)-based electrolytes are promising for all-solid-state Li-metal batteries because of their compatibility with a metallic lithium anode. However, the low room-temperature Li-ion conductivity of PEO solid electrolytes and severe lithium-dendrite growth limit their application in high-energy Li-metal batteries. Here we prepared a PEO/perovskite Li3/8Sr7/16Ta3/4Zr1/4O3 composite electrolyte with a Li-ion conductivity of 5.4 × 10−5 and 3.5 × 10−4 S cm−1 at 25 and 45 °C, respectively; the strong interaction between the F− of TFSI− (bis-trifluoromethanesulfonimide) and the surface Ta5+ of the perovskite improves the Li-ion transport at the PEO/perovskite interface. A symmetric Li/composite electrolyte/Li cell shows an excellent cyclability at a high current density up to 0.6 mA cm−2. A solid electrolyte interphase layer formed in situ between the metallic lithium anode and the composite electrolyte suppresses lithium-dendrite formation and growth. All-solid-state Li|LiFePO4 and high-voltage Li|LiNi0.8Mn0.1Co0.1O2 batteries with the composite electrolyte have an impressive performance with high Coulombic efficiencies, small overpotentials, and good cycling stability.


2017 ◽  
Vol 309 ◽  
pp. 163-169 ◽  
Author(s):  
Christoph Kirsch ◽  
Martin Pulst ◽  
Muhammad Haris Samiullah ◽  
Paweł Ruda ◽  
Nazmul Hasan ◽  
...  

2007 ◽  
Vol 227 (2) ◽  
pp. 1162-1175 ◽  
Author(s):  
L. Gitelman ◽  
M. Israeli ◽  
A. Averbuch ◽  
M. Nathan ◽  
Z. Schuss ◽  
...  

2002 ◽  
Vol 12 (6) ◽  
pp. 1926-1929 ◽  
Author(s):  
Wen Chen ◽  
Qing Xu ◽  
Yong Sheng Hu ◽  
Li Qiang Mai ◽  
Quan Yao Zhu

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