High performance plastic lithium-ion battery cells for hybrid vehicles |
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| Affiliation: | 1. School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, 807, Taiwan;2. Department of Chemistry, College of Sciences, National Sun Yat-Sen University, Kaohsiung, 804, Taiwan;3. Food and Drug Administration, Ministry of Health and Welfare, Taiwan;1. Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovský Sq. 2, 162 06 Prague 6, Czech Republic;2. New York University Polytechnic School of Engineering, Polymer Research Institute, 6 MetroTech Center, Brooklyn, NY 11201, USA |
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| Abstract: | Exploratory studies on small plastic lithium-ion battery test cells with improved cathode material show high pulse power capability and outstanding stability both in a 25 °C pulse cycling test and in a 55 °C calendar life test. Typical discharge pulse power values are 60 mW/cm2. After 50,000 pulse cycles at 5 C rates, cells at 25 °C retain 100% of their initial 1 C capacity and 75% of their pulse power capability. After 60 days at 55 °C, cells measured at 25 °C retain 98% of their initial 1 C capacity and 70% of their pulse power capability. This performance is an excellent basis for the development of long life batteries for hybrid vehicles, as shown by a calculated scale up to a 30 kW hybrid battery for a “Fast Response Engine”. |
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