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4,000원
원문정보
초록
영어
Battery electrodes, essential for energy storage, possess pores that heavily influence their mechanical properties based on the level of porosity and the nature of the pores. The irregularities in pore shape, size, and distribution complicate the accurate determination of these properties. While stress-strain measurements can shed light on a material’s mechanical behavior and predict compression limits, the complex structure of the pores poses significant challenges for accurate measurements. In this research, we introduce a simulation-driven approach to derive stress-strain data that considers porosity. By calculating relative density and the rate of volume change under compression based on porosity, and applying pressure, we conducted a parametric study to identify the elastic modulus (E) in relation to the rate of volume change. This information was utilized within a material modeling equation, generating stress-strain (S-S) curves that were further analyzed to replicate the compression behavior of the electrode material. The outcomes of this study are expected to improve the prediction accuracy of mechanical properties for porous electrode materials, potentially enhancing battery performance and refining manufacturing processes.
목차
Abstract 1. 서론 2. 기존 연구 2.1 등가 재료 물성 도출 연구 2.2 탄성계수 행렬 3. 응력-변형률 측정 4. 결론 후기 References
키워드
기공률유한 요소 해석응력-변형률 곡선다공성 소재압축 거동PorosityFinite Element MethodStress-strain curvePorous materialCompression behavior
저자
심재삼 [ Jaesam Sim | Member, Purpose Mobility Group, Korea Institute of Industrial Technology (KITECH) ]
Corresponding Author