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Monitoring Battery Degradation
New Electronics, 2022Damage-free way to gauge the health of next-gen batteries for electric vehicles
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Optimal battery capacity of grid-connected PV-battery systems considering battery degradation
Renewable Energy, 2022Abstract The optimal capacity of a battery energy storage system (BESS) is significant to the economy of energy systems and photovoltaic (PV) self-consumption. In this study, considering the long-term battery degradation, a mixed-integer nonlinear programming (MINLP) model was proposed for the PV-battery systems which aim to minimize the life cycle ...
Yaling Wu +5 more
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Battery Degradation and Ageing
2001Batteries are subject to degradation in storage due to a variety of chemical mechanisms, such as limited thermal stability of materials in storage, e.g. silver oxide in silver - zinc batteries, or corrosion of metal electrodes, e.g. lead in lead - acid batteries or lithium in lithium / thionyl chloride batteries.
A. G. Ritchie +5 more
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Capacity degradation of lithium rechargeable batteries
Journal of Power Sources, 2005Abstract Li rechargeable cells made with structural arrangement Li/membrane/LixV2O5 were examined under different charge states using ac impedance, environmental scanning electron microscope (ESEM), transmission electron microscope (TEM) and the high-resolution nuclear magnetic resonance (NMR).
J.P. Zheng +6 more
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Detection method of battery cell degradation
2011 IEEE Vehicle Power and Propulsion Conference, 2011This paper introduces a method, which precisely estimates deviations in the State-of-Charge and resistance values of the cells in a battery pack. The aim of the algorithm is to provide the required information a) for an early detection of cell failures and b) to decide, which cells must be charged or discharged by the charge equalization circuit.
Bernhard Kortschak +4 more
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Li-Ion Battery Deep Discharge Degradation
ECS Transactions, 2016Deep discharging or over-charging of Li-ion cells must be avoided to ensure sufficient life-time and sometimes also the operation safety of these batteries. BMS circuits co-operating with the charger and forbidding deep discharging of the cells are necessarily present in battery packs.
Petr Prochazka +4 more
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Battery Degradation Platform and Model for Realistic Battery Use Cases
2020 4th International Conference on Smart Grid and Smart Cities (ICSGSC), 2020In this paper, the mathematical evaluation model, extended wear density function (WDF), that evaluates battery remaining life is proposed. Also, a data platform to be utilized for the extended WDF is proposed. The previous WDF doesn’t consider three factors; operation temperature, current, and operating state-of-charge (SOC).
Daisuke Kodaira, Sekyung Han
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A Reduced-Order Battery Degradation Model for Battery Management Systems
ECS Meeting Abstracts, 2017An accurate and prompt prediction of the State of Health (SOH) of lithium ion batteries is a critical process for a Battery Management System (BMS). In this work, a single particle-based degradation model is developed by focusing on Solid Electrolyte Interface (SEI) layer formation and its evolution, which is coupled with the crack propagation due to
Jie Li +3 more
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(Invited) Microstructural Degradation in Rechargeable Batteries
ECS Meeting Abstracts, 2016The charge/discharge microstructural conditions that lead to mechanical failure, salt precipitation, and lithium dendrite formation in rechargeable lithium-ion batteries are explored. By starting from high resolution X-ray tomography, three-dimensional representations of porous microstructures from commercially batteries are used to simulate its local ...
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Heterogeneous degradation in Li-ion batteries
2023Li-ion batteries are crucial for the forthcoming energy transition. They are complex systems that show heterogeneous current distribution patterns and degradation. The development of valid methods to determine their internal state as well as for performance optimization and life cycle extension are vital for battery full deployment.We study the entropy
Ovejas Benedicto, Victòria Júlia +1 more
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