Abstract
Adequate cell design, especially concerning energy density and cycle life, is important for the development of large-scale lithium ion batteries. In this study, we were able to survey the expansion and shrinkage of the layer-built electrodes of a prismatic cell during charge and discharge tests. Natural graphite and mesophase carbon micro beads (MCMB) were used as anode active material for the comparison purpose. Based on the findings of this study, a plate spring and lightweight battery case were designed. In addition, an improved large-scale battery employing these parts was manufactured for further examination.
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