Journal
IEEE TRANSACTIONS ON RELIABILITY
Volume 65, Issue 1, Pages 310-325Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TR.2015.2451074
Keywords
Degradation; discharging profile; Gibbs sampling; hierarchical model; lithium-ion battery; remaining useful cycles; smoothing spline
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Funding
- Singapore AcRF Tier 1 Funding [R 266-000-085-112]
- National Research Foundation under Campus for Research Excellence and Technological Enterprise
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Developing prognostics and health management (PHM) approaches for lithium-ion batteries has received increasing attention in recent years. This paper presents a new modeling framework to characterize lithium-ion battery degradation by examining detailed discharging voltage profiles in different discharging cycles. We propose a hierarchical model, combining discharging processes and degradation processes, to predict the end of discharges in different cycles and remaining useful cycles integratively. We use a real case study to demonstrate the effectiveness and promising features of the proposed framework.
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