Lithium-Ion Batteries Health Prognosis Considering Aging Conditions

Mejdoubi, Asmae El; Chaoui, Hicham; Gualous, Hamid; Bossche, Peter Van den; Omar, Noshin; Mierlo, Joeri Van

doi:10.1109/tpel.2018.2873247

Cited by 132 publications

(58 citation statements)

References 48 publications

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“…The performance degradation of Li-ion batteries can be characterized by the loss of either capacity (i.e., available energy) or power (i.e., reaction rate). Capacity is lost when the active material has been transformed into inactive phases as a result of parasitic chemical reactions [86], though the issue is complicated and not straightforward to model from fundamental approaches [87]. Power is likewise reduced when parasitic reactions occur that convert battery materials to other compounds that act as transport barriers, increasing the cell's internal impedance, and which in turn reduces the operating voltage at each discharge rate [88,89].…”

Section: Li-ion Battery Lifespanmentioning

confidence: 99%

Current Li-Ion Battery Technologies in Electric Vehicles and Opportunities for Advancements

et al. 2019

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Over the past several decades, the number of electric vehicles (EVs) has continued to increase. Projections estimate that worldwide, more than 125 million EVs will be on the road by 2030. At the heart of these advanced vehicles is the lithium-ion (Li-ion) battery which provides the required energy storage. This paper presents and compares key components of Li-ion batteries and describes associated battery management systems, as well as approaches to improve the overall battery efficiency, capacity, and lifespan. Material and thermal characteristics are identified as critical to battery performance. The positive and negative electrode materials, electrolytes and the physical implementation of Li-ion batteries are discussed. In addition, current research on novel high energy density batteries is presented, as well as opportunities to repurpose and recycle the batteries.

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Section: Li-ion Battery Lifespanmentioning

confidence: 99%

Current Li-Ion Battery Technologies in Electric Vehicles and Opportunities for Advancements

et al. 2019

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“…Eventually, by the rearrangement of Equation 9, the output voltage, V O , can be derived as Equation (10). It can be confirmed that with proper control of d 1 and d 2 , V O can be regulated with a function of V in1 and V in2 :…”

Section: Of 16mentioning

confidence: 90%

“…However, if Equation 11is rearranged, the output voltage will be the same as V O shown in Equation (10). Therefore, the two input sources, V in1 and V in2 can be controlled independently.…”

Section: Of 16mentioning

confidence: 99%

“…Novel energy technologies such as photovoltaic (PV) power generation systems, wind power systems, electric vehicles and advanced consumer electronics have been rapidly developed [3][4][5][6]. The battery module is an essential component for energy storage [7][8][9][10]. In addition, a battery charger consisting of DC-DC converters integrated with the pulse-width-modulation (PWM) technology is necessary to control the battery energy [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

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Bidirectional Power Flow Control of a Multi Input Converter for Energy Storage System

Tang

Lin

2019

Energies

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The objective of this paper is to propose a multi-input DC-DC converter with bidirectional power flow control capability. Compared to the traditional power converter, the multi-input converter (MIC) can save on the number of components and the circuit cost. Under normal conditions, the MIC is able to transfer energy from different input sources to the load. However, if the battery module is adopted, both the charging or discharging features should be considered. Therefore, the bidirectional power flow control of the MIC is necessary. On the other hand, because of the inconsistency characteristics of batteries, unbalanced circuit operation might occur whereby the circuit and the battery might be damaged. Therefore, dynamic current regulation strategies are developed for the MIC. Consequently, the proposed MIC circuit is able to achieve the bidirectional power flow control capability as well as control the input currents independently. Detailed circuit analysis and comprehensive mathematical derivation and of the proposed MIC will be presented in this paper. Finally, both simulation and experimental results obtained from a 500 W prototype circuit verify the performance and feasibility of the proposed bidirectional multi-input converter.

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“…However, there is a critical issue about imbalance of electric charge [1][2][3][4][5] within high power battery strings. The issue is caused by the characteristic [6], depth of discharge [7], and aging problem of each cell [8,9]. Based on the reasons above, when the battery string is being charged or discharged, the imbalance of each cell of the battery string becomes more serious.…”

Section: Introductionmentioning

confidence: 99%

A Fast Charging Balancing Circuit for LiFePO4 Battery

Chang

et al. 2019

Electronics

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In this paper, a fast charging balancing circuit for LiFePO4 battery is proposed to address the voltage imbalanced problem of a lithium battery string. During the lithium battery string charging process, the occurrence of voltage imbalance will activate the fast balancing mechanism. The proposed balancing circuit is composed of a bi-directional converter and the switch network. The purpose of bi-directional is that the energy can be delivered to the lowest voltage cell for charging mode. On the other hand, the energy stored in the magnetizing inductors of the transformer can be charged back to the higher voltage cell in recycling mode. This novel scheme includes the following features: (1) The odd-numbered and even-numbered cells in the string with the maximum differential voltage will be chosen for balancing process directly. In this topology, there is no need to store and deliver the energy through any intermediate or the extra storing components. That is, the energy loss can be saved to improve the efficiency, and the fast balancing technique can be achieved. (2) There is only one converter to complete the energy transfer for voltage balancing process. The concept makes the circuit structure much simpler. (3) The structure has bi-directional power flow and good electrical isolation features. (4) A single chip controller is applied to measure the voltage of each cell to achieve the fast balancing process effectively. At the end of the paper, the practical test of the proposed balancing method on LiFePO4 battery pack (28.8 V/2.5 Ah) is verified and implemented by the experimental results.

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Lithium-Ion Batteries Health Prognosis Considering Aging Conditions

Cited by 132 publications

References 48 publications

Current Li-Ion Battery Technologies in Electric Vehicles and Opportunities for Advancements

Current Li-Ion Battery Technologies in Electric Vehicles and Opportunities for Advancements

Bidirectional Power Flow Control of a Multi Input Converter for Energy Storage System

A Fast Charging Balancing Circuit for LiFePO4 Battery

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