Journal
JOURNAL OF MODERN POWER SYSTEMS AND CLEAN ENERGY
Volume 3, Issue 2, Pages 289-296Publisher
SPRINGEROPEN
DOI: 10.1007/s40565-015-0115-1
Keywords
Lithium-ion battery; Charge-discharge characteristics; Low-temperature performance; Electric vehicles; Heating method
Categories
Funding
- defense pre-research project [104010108]
- Fujian province natural science foundation [2014J01173]
- key discipline of mechanical engineering in Fujian province [6112c1600]
- Fujian province department of education [JA12100]
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To improve the low-temperature charge-discharge performance of lithium-ion battery, low-temperature experiments of the charge-discharge characteristics of 35 Ah high-power lithium-ion batteries have been conducted, and the wide-line metal film method for heating batteries is presented. At -40 degrees C, heating and charge-discharge experiments have been performed on the battery pack. The results indicate the charge-discharge performance is substantially worse in cold climates, and can be significantly improved by heating the battery pack with a wide-line metal film. Pulse charge-discharge experiments show that at -40 degrees C ambient temperature, the heated battery pack can charge or discharge at high current and offer almost 80% power.
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