scholarly journals To immobilize polyethylene glycol-borate ester/lithium fluoride in graphene oxide/poly(vinyl alcohol) for synthesizing new polymer electrolyte membrane of lithium-ion batteries

2017 ◽  
Vol 11 (1) ◽  
pp. 35-46 ◽  
Author(s):  
Y. F. Huang ◽  
M. Q. Zhang ◽  
M. Z. Rong ◽  
W. H. Ruan
Keyword(s):  
Graphene Oxide ◽  
Polyethylene Glycol ◽  
Lithium Ion Batteries ◽  
Vinyl Alcohol ◽  
Lithium Fluoride ◽  
Polymer Electrolyte Membrane ◽  
Lithium Ion ◽  
Poly Vinyl Alcohol ◽  
Electrolyte Membrane ◽  
Borate Ester

scholarly journals Self-Healing of a Covalently Cross-Linked Polymer Electrolyte Membrane by Diels-Alder Cycloaddition and Electrolyte Embedding for Lithium Ion Batteries

Polymers ◽  
2021 ◽  
Vol 13 (23) ◽  
pp. 4155
Author(s):  
Lijuan Chen ◽  
Xisen Cai ◽  
Zhonghui Sun ◽  
Baohua Zhang ◽  
Yu Bao ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Polymer Electrolyte Membrane ◽  
Rate Capability ◽  
Lithium Ion ◽  
Nitrogen Atmosphere ◽  
Diels Alder ◽  
Self Healing ◽  
Electrolyte Membrane ◽  
Electrolyte Membranes ◽  
Separator Material

Thermally reversible self-healing polymer (SHP) electrolyte membranes are obtained by Diels-Alder cycloaddition and electrolyte embedding. The SHP electrolytes membranes are found to display high ionic conductivity, suitable flexibility, remarkable mechanical properties and self-healing ability. The decomposition potential of the SHP electrolyte membrane is about 4.8 V (vs. Li/Li+) and it possesses excellent electrochemical stability, better than that of the commercial PE film which is only stable up to 4.5 V (vs. Li/Li+). TGA results show that the SHP electrolyte membrane is thermally stable up to 280 °C in a nitrogen atmosphere. When the SHP electrolyte membrane is used as a separator in a lithium-ion battery with an LCO-based cathode, the SHP membrane achieved excellent rate capability and stable cycling for over 100 cycles, and the specific discharge capacity could be almost fully recovered after self-healing. Furthermore, the electrolyte membrane exhibits excellent electrochemical performance, suggesting its potential for application in lithium-ion batteries as separator material.

Sign in / Sign up

Export Citation Format

Share Document