Polyimide-Based Self-Standing Polymer Electrolyte Membrane for Lithium-Ion Batteries

2018 ◽  
Vol 6 (2) ◽  
pp. 326-332 ◽  
Author(s):  
Ailian Wang ◽  
Hao Xu ◽  
Fulin Liu ◽  
Xu Liu ◽  
Shi Wang ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Membrane ◽  
Lithium Ion ◽  
Electrolyte Membrane

scholarly journals PERFORMANCE STUDY OF LiBOB/LiTFSI ELECTROLYTE SALT IN THE ALL-SOLID-STATE LITHIUM-ION BATTERY

2020 ◽  
Vol 21 (3) ◽  
pp. 102
Author(s):  
Christin Ratri ◽  
Titik Lestariningsih ◽  
Qolby Sabrina
Keyword(s):  
Lithium Ion Battery ◽  
Polymer Electrolyte ◽  
Electrode Materials ◽  
Polymer Electrolyte Membrane ◽  
Lithium Ion ◽  
Solid Polymer ◽  
Performance Study ◽  
Battery Cell ◽  
Current Output ◽  
Electrolyte Membrane

PERFORMANCE STUDY OF LiBOB/LiTFSI ELECTROLYTE SALT IN THE ALL-SOLIDSTATE LITHIUM-ION BATTERY. Solid polymer electrolyte is developed mainly to provide safer lithiumion battery upon high temperature operation. In this research, we employ LiBOB and LiTFSI electrolyte salt in various concentration to replace commercially used LiPF6 salt. Solution cast method was performed to produce polymer electrolyte membrane. PVdF-HFP was chosen as polymer matrix due to high dielectric constant, and compatibility to wide array of electrode materials as well as electrolyte salts. Higher amount of electrolyte salts contributes to thicker membrane and hence higher current output of the lithium-ion battery half-cells. SEM, FT-IR spectroscopy, and cyclic voltammetry measurement was conducted to evaluate li-ion battery cell performance. Between the two electrolyte salts used in this experiment, LiTFSI salt exhibited better performance compared to LiBOB.

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.

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