Geopolymers
Inorganic polymeric new materials
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Kai Yang
Kai Yang
School of Chemical Engineering and Environment, Beijing Institute of Technology, Beijing, 100081 China
Electrical Engineering Department, China Electric Power Research Institute, Beijing, 100192 China
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Electrical Engineering Department, China Electric Power Research Institute, Beijing, 100192 China
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Jin An
Jin An
School of Chemical Engineering and Environment, Beijing Institute of Technology, Beijing, 100081 China
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Shi Chen
Shi Chen
School of Chemical Engineering and Environment, Beijing Institute of Technology, Beijing, 100081 China
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Abstract
In order to study the surface temperature change and distribution during charging and discharging and in the simulation working condition of LiFePO4/C power battery at normal temperature, the surface temperature is tested by placing the battery in the incubator and fixing 10 temperature probes on the battery surface. Results show that the temperature of the upper part is higher, and the temperature at the bottom is the lowest, while around the positive electrode is the highest during charging and discharging. The maximum temperature rising rate is reached at the moment of constant current charging transforming to the constant voltage charging during charging, and at the end moment during discharging. During charging in a certain range and discharging, the relations between the maximum temperature, the average temperature rising rate, and the maximum temperature difference of all the measurement points at the same time and the current are approximately linear, respectively. In the simulation working condition, the moment of the maximum temperature is consistent with the large current discharging instantaneous in each stage.
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| Journal of Thermal Analysis and Calorimetry | |
|---|---|
| Language | English |
| Size | A4 |
| Year of Foundation |
1969 |
| Volumes per Year |
1 |
| Issues per Year |
24 |
| Founder | Akadémiai Kiadó |
| Founder's Address |
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. |
| Publisher | Akadémiai Kiadó Springer Nature Switzerland AG |
| Publisher's Address |
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. CH-6330 Cham, Switzerland Gewerbestrasse 11. |
| Responsible Publisher |
Chief Executive Officer, Akadémiai Kiadó |
| ISSN | 1388-6150 (Print) |
| ISSN | 1588-2926 (Online) |
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Temperature dependence of the rate of reaction in thermal analysis
The Arrhenius equation in condensed phase kinetics
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