Chang, Wonyoung Kim, Su-Jin Park, In-Tae Cho, Byung-Won Chung, Kyung Yoon Shin, Heon-Cheol 2024-01-20T12:03:31Z 2024-01-20T12:03:31Z 2021-09-05 2013-06-25 0925-8388 https://pubs.kist.re.kr/handle/201004/127947 Here we report the unusual low temperature (LT) capacity retention of LiFePO4, which is superior to its room temperature (RT) counterpart. In particular, the initial LT discharging capacity of LiFePO4 at -20 degrees C was only half of the RT capacity, but its average capacity fade for the first 40 cycles was only one fourth to one fifth of the RT value, which makes the capacity at -20 degrees C exceed the RT capacity after less than 20 cycles. It is suggested from the impedance and capacity analyses that the much milder degradation of the surface and the bulk, respectively, during the LT cycling might be responsible for the stable LT operation. (C) 2013 Published by Elsevier B.V. English ELSEVIER SCIENCE SA IMPEDANCE CELLS ELECTROLYTE Low temperature performance of LiFePO4 cathode material for Li-ion batteries Article 10.1016/j.jallcom.2013.02.143 1 JOURNAL OF ALLOYS AND COMPOUNDS, v.563, pp.249 - 253 JOURNAL OF ALLOYS AND COMPOUNDS 563 249 253 scie scopus 000317269300044 2-s2.0-84875015625 Chemistry, Physical Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Chemistry Materials Science Metallurgy & Metallurgical Engineering Article IMPEDANCE CELLS ELECTROLYTE Lithium battery Cathode Low-temperature Electrochemical impedance spectroscopy