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首页> 美国政府科技报告 >Comparative Costs of Flexible Package Cells and Rigid Cells for Lithium-Ion Hybrid Electric Vehicle Batteries
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Comparative Costs of Flexible Package Cells and Rigid Cells for Lithium-Ion Hybrid Electric Vehicle Batteries

机译：锂离子混合动力电动汽车电池柔性封装电池和刚性电池的比较成本

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We conducted a design study to compare the manufacturing costs at a level of 100,000 hybrid vehicle batteries per year for flexible package (Flex) cells and for rigid aluminum container (Rigid) cells. Initially, the Rigid cells were considered to have welded closures and to be deep-drawn containers of about the same shape as the Flex cells. As the study progressed, the method of fabricating and sealing the Rigid cells was expanded to include lower cost options including double seaming and other mechanically fastened closures with polymer sealants. Both types of batteries were designed with positive electrodes containing Li(Ni1/3Co1/3Mn1/3)O2 and graphite negative electrodes. The use of a different combination of lithium-ion electrodes would have little effect on the difference in costs for the two types of cells. We found that 20-Ah cells could be designed with excellent performance and heat rejection capabilities for either type of cell. Many parts in the design of the Flex cells are identical or nearly identical to those of the Rigid Cell, so for these features there would be no difference in the cost of manufacturing the two types of batteries. We judged the performance, size and weight of the batteries to be sufficiently similar that the batteries would have the same value for their application.

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