A study on trends and developments in electric vehicle charging technologies

Hemavathi, S.; Shinisha, A.

doi:10.1016/j.est.2022.105013

Cited by 131 publications

(42 citation statements)

References 65 publications

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“…To give consideration to both fast charging and life management of electrical vehicles, the step charging mode is generally adopted. At present, the large current is used to charge to 80% -95% SOC, and then the current is reduced to the end of constant current charging [13] . Because the VDR at the charging end is related to the charging state of the battery, whether the current change in the charging process will affect the internal resistance of the voltage drop needs further verification.…”

Section: Impact Of the Step Chargingmentioning

confidence: 99%

Estimation of the residue capacity of lithium iron phosphate battery based on the internal resistance obtained from charging voltage drop

Yin,

Yu,

Zhang

et al. 2024

J. Phys.: Conf. Ser.

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This study takes the 80 Ah lithium iron phosphate (LFP) prismatic battery that is from the vehicle and is in the middle or end of life as the research target, and the voltage-drop resistance (VDR), which is calculated through the voltage drop at the charging end, is used to for residue capacity estimation. The relationship between the VDR and the residue capacity of the battery is systematically studied, including factors such as charging cut-off voltage, charging current, charging end time, and charging current change mechanism. The results show that the residue capacity is a quadratic function relationship with the charging cut-off voltage and VDR. The VDR is affected by the charging cut-off voltage, charging cut-off current, and charging end time. There is no significant difference in the influence of VDR obtained by the charging modes of step charging and constant current charging. By testing the VDR under different charging conditions and different resting times, and standardizing the VDR, the residue capacity estimation error of 97% of the vehicle’s batteries is within ±5%, which meets the application requirements for residue capacity estimation.

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Section: Impact Of the Step Chargingmentioning

confidence: 99%

Estimation of the residue capacity of lithium iron phosphate battery based on the internal resistance obtained from charging voltage drop

Yin,

Yu,

Zhang

et al. 2024

J. Phys.: Conf. Ser.

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show abstract

“…Consequently, the cycling efficiency is low as there is insufficient protection for the SEI layer. LIBs with graphite-based electrodes can be cycled by an EC alternative [27]. Around 90 % of the efficiencies are achieved in the first cycle without additives.…”

Section: Solventmentioning

confidence: 99%

“…There exist small interfacial resistances between electrolytes and electrodes in commercial rechargeable LIBs. The research on aluminum‐ion batteries is still in its infancy, but this battery type is promising increased safety at a cost that is lower than that of LIBs 12. These batteries, like LIBs, contain an aluminum anode.…”

Section: Introductionmentioning

confidence: 99%

Present and Future Generation of Secondary Batteries: A Review

Hemavathi,

Srirama,

Prakash

2023

ChemBioEng Reviews

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Major support for the future energy storage and application will benefit from lithium‐ion batteries (LIBs) with high energy density and high power. LIBs are currently the most common battery type for most applications, but soon a broader range of battery types and higher energy densities will be available. In the near future, hundreds of millions of electric vehicles are expected to be on the road, and a large amount of cobalt will be depleted. Various kinds of batteries are developed today to store energy, including Li‐ion, lead‐acid, Ni‐MH, redox flow, Na‐ion, Mg‐ion, Li‐air, Al‐ion, Li/S, NC‐based batteries, Al‐based batteries, metal‐air batteries, solid‐state batteries, etc. There are several types of battery components, such as electrodes, electrolytes, separators, etc. Cell chemistry and component diversity will continue to increase with future generations of batteries. Next‐generation LIBs and sodium‐ion batteries are explored for their ability to reduce active ion loss and increase energy density by pre‐lithiation. To maximize the electrochemical system's performance, various scientific and technological approaches are needed to maximize the potential of battery chemistry.

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“…For the recharging phase, it is known that electric vehicles require rather long charging times. However, electric vehicles can be recharged faster by using high-power charging stations (e.g., DC fast stations) [28]. Therefore, a charging time below one hour has been assumed only with a CC charging until the upper cut-off limit without a CV charging phase.…”

Section: Cells Cycling Under Current Driving Cyclementioning

confidence: 99%

Effect of WLTP CLASS 3B Driving Cycle on Lithium-Ion Battery for Electric Vehicles

et al. 2022

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Capacity loss over time is a critical issue for lithium-ion batteries powering battery electric vehicles (BEVs) because it affects vehicle range and performance. Driving cycles have a major impact on the ageing of these devices because they are subjected to high stresses in certain uses that cause degradation phenomena directly related to vehicle use. Calendar capacity also impacts the battery pack for most of its lifetime with a capacity degradation. The manuscript describes experimental tests on a lithium-ion battery for electric vehicles with up to 10% capacity loss in the WLTP CLASS 3B driving cycle. The lithium-ion battery considered consists of an LMO-NMC cathode and a graphite anode with a capacity of 63 Ah for automotive applications. An internal impedance variation was observed compared to the typical full charge/discharge profile. Incremental capacitance (IC) and differential voltage (DV) analysis were performed in different states of cell health. A lifetime model is described to compute the total capacity loss for cycling and calendar ageing exploiting real data under some different scenarios of vehicle usage.

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A study on trends and developments in electric vehicle charging technologies

Cited by 131 publications

References 65 publications

Estimation of the residue capacity of lithium iron phosphate battery based on the internal resistance obtained from charging voltage drop

Estimation of the residue capacity of lithium iron phosphate battery based on the internal resistance obtained from charging voltage drop

Present and Future Generation of Secondary Batteries: A Review

Effect of WLTP CLASS 3B Driving Cycle on Lithium-Ion Battery for Electric Vehicles

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