期刊
JOURNAL OF POWER SOURCES
卷 376, 期 -, 页码 111-116出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2017.11.052
关键词
Self-heating Li-ion battery (SHLB); Low temperature activation; Infrared thermography; Temperature distribution
资金
- Pennsylvania Department of Environmental Protection (DEP) [4100068680-1]
Self-heating Li-ion battery (SHLB), a.k.a. all climate battery, has provided a novel and practical solution to the low temperature power loss challenge. During its rapid self-heating, it is critical to keep the heating process and temperature distributions uniform for superior battery performance, durability and safety. Through infrared thermography of an experimental SHLB cell activated from various low ambient temperatures, we find that temperature distribution is uniform over the active electrode area, suggesting uniform heating. We also find that a hot spot exists at the activation terminal during self-heating, which provides diagnostics for improvement of next generation SHLB cells without the hot spot.
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