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Thermal Effect and Mechanism Analysis of Flame-Retardant Modified Polymer Electrolyte for Lithium-Ion Battery
- Source :
- Polymers, Volume 13, Issue 11, Polymers, Vol 13, Iss 1675, p 1675 (2021)
- Publication Year :
- 2021
- Publisher :
- Multidisciplinary Digital Publishing Institute, 2021.
-
Abstract
- In recent years, the prosperous electric vehicle industry has contributed to the rapid development of lithium-ion batteries. However, the increase in the energy density of lithium-ion batteries has also created more pressing safety concerns. The emergence of a new flame-retardant material with the additive ethoxy (pentafluoro) cyclotriphosphazene can ameliorate the performance of lithium-ion batteries while ensuring their safety. The present study proposes a new polymer composite flame-retardant electrolyte and adopts differential scanning calorimetry (DSC) and accelerating rate calorimetry to investigate its thermal effect. The study found that the heating rate is positively correlated with the onset temperature, peak temperature, and endset temperature of the endothermic peak. The flame-retardant modified polymer electrolyte for new lithium-ion batteries has better thermal stability than traditional lithium-ion battery electrolytes. Three non-isothermal methods (Kissinger<br />Kissinger–Akahira–Sunose<br />and Flynn–Wall–Ozawa) were also used to calculate the kinetic parameters based on the DSC experimental data. The apparent activation energy results of the three non-isothermal methods were averaged as 54.16 kJ/mol. The research results can provide valuable references for the selection and preparation of flame-retardant additives in lithium-ion batteries.
- Subjects :
- Battery (electricity)
Materials science
Polymers and Plastics
Organic chemistry
02 engineering and technology
Calorimetry
Electrolyte
lithium-ion battery
010402 general chemistry
flame-retardant electrolyte
01 natural sciences
Endothermic process
Article
Lithium-ion battery
thermal stability
QD241-441
Differential scanning calorimetry
polymer composite
Thermal stability
chemistry.chemical_classification
ethoxy (pentafluoro) cyclotriphosphazene
General Chemistry
Polymer
021001 nanoscience & nanotechnology
0104 chemical sciences
chemistry
Chemical engineering
0210 nano-technology
Subjects
Details
- Language :
- English
- ISSN :
- 20734360
- Database :
- OpenAIRE
- Journal :
- Polymers
- Accession number :
- edsair.doi.dedup.....cd9d58753503e07ae11acd75b198e8a6
- Full Text :
- https://doi.org/10.3390/polym13111675