期刊
JOURNAL OF SANDWICH STRUCTURES & MATERIALS
卷 23, 期 8, 页码 3794-3813出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/1099636220946554
关键词
Materials; shear; bending; compression; core; electric vehicle; optimization
类别
资金
- Australian Research Council as part of the ARC Training Centre in Lightweight Automotive Structures [IC160100032]
- Ford Motor Company
This paper investigates the mechanical properties of lithium-ion polymer batteries and their use in automotive design. Experimentally determined shear, flexural, and compression properties of LiPo batteries were applied to analytical models of sandwich panels, discussing the trade-off between mechanical performance and cost in automotive panel design. The practicality of using sandwich composites with LiPo battery cores in automotive applications was also discussed.
This paper investigates the mechanical properties of lithium-ion polymer (LiPo) batteries and their subsequent use in the design of multifunctional sandwich panels for automotive applications. Shear properties, flexural properties and compression properties of prismatic pouch LiPo batteries are determined experimentally through a hole-punch test, a three-point bending test and an in-plane compression test, respectively. This study is the first to characterize the shear properties of a lithium-ion battery, which are critical in sandwich panel design. The mechanical properties of the batteries obtained are then applied to existing analytical models of multifunctional sandwich panels consisting of carbon fibre composite facesheets and LiPo battery cores, which are currently being considered for use in automotive panel design. A material selection procedure for a stiffness-limited automotive car door panel subjected to bending shows that a trade-off between mechanical performance and cost can be achieved by using a composite sandwich panel with thin LiPo battery cores or by embedding larger LiPo batteries in lower-density polymer foam cores. The practicality and implementation aspects of using sandwich composites with LiPo battery cores in automotive design are also discussed.
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