A capacity and power fade study of Li-ion cells during life cycle testing

Belt, Jeffrey R.; Ho, Chinh D.; Motloch, Chester G.; Miller, Ted; Duong, Tien Q.

doi:10.1016/s0378-7753(03)00537-8

Cited by 77 publications

(54 citation statements)

References 4 publications

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“…The cell was discharged again to its next target voltage, and the identical electrochemical experiments were repeated. In the fresh pouch cell, CPE and EIS were performed at three target voltages, and the cell was then completely discharged and stored at 40°C for 1 week under SOC 50% state (5 mA h charging) to accelerate cell degradation [3,6,8]. After storage at 40°C, the pouch cell capacity was measured at 10 mA current.…”

Section: Methodsmentioning

confidence: 99%

“…Recently, lithium ion batteries have been applied to high-power energy storage in hybrid electric vehicles (HEV), plug in HEV and EV [1][2][3]. In power assistance applications, the power capability of lithium ion batteries becomes one of the most important considerations.…”

Section: Introductionmentioning

confidence: 99%

“…In the final step, the relationship between the power capability and SOC is acquired. Because voltage transients obtained from CPE exhibit typical relaxation with time, however, the magnitude of the voltage drop should be determined carefully to obtain meaningful resistance and power values [3]. In addition, the power fade is the most crucial factor for the calendar life determination of lithium ion batteries [5].…”

Section: Introductionmentioning

confidence: 99%

“…From the literature, calendar life has been predicted by storage of lithium ion batteries of a certain SOC at high temperatures to accelerate their degradation. After storage, the degraded power is then obtained by CPE [3,4]. Because the power is inversely proportional to resistance, the most significant factors affecting the change in resistance during the accelerated life test should be investigated [6].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Power capability analysis in lithium ion batteries using electrochemical impedance spectroscopy

Yoon

Hwang

Lee

et al. 2011

Journal of Electroanalytical Chemistry

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Power capability analysis in lithium ion batteries using electrochemical impedance spectroscopy

Yoon

Hwang

Lee

et al. 2011

Journal of Electroanalytical Chemistry

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“…The capacity fading is related with carrier concentration loss and internal impedance growth in the batteries. These effects strongly depends on the operating condition of the battery such as charging and discharging current, number of cycles, SoC swing, average SoC and operation temperature [10]~ [12]. The characterization of the battery cell requires timeconsuming experiments.…”

Section: Background a Related Workmentioning

confidence: 99%

State of health aware charge management in hybrid electrical energy storage systems

Xie

Lin

Wang

et al. 2012

2012 Design, Automation &Amp; Test in Europe Conference &Amp; Exhibition (DATE)

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-This paper is the first to present an efficient charge management algorithm focusing on extending the cycle life of battery elements in hybrid electrical energy storage (HEES) systems while simultaneously improving the overall cycle efficiency. In particular, it proposes to apply a crossover filter to the power source and load profiles. The goal of this filtering technique is to allow the battery banks to stably (i.e., with low variation) receive energy from the power source and/or provide energy to the load device, while leaving the spiky (i.e., with high variation) power supply or demand to be dealt with by the supercapacitor banks. To maximize the HEES system cycle efficiency, a mathematical problem is formulated and solved to determine the optimal charging/discharging current profiles and charge transfer interconnect voltage, taking into account the power loss of the EES elements and power converters. To minimize the state of health (SoH) degradation of the battery array in the HEES system, we make use of two facts: the SoH of battery is better maintained if (i) the SoC swing is smaller, and (ii) the same SoC swing occurs at lower average SoC. Now then using the supercapacitor bank to deal with the high-frequency component of the power supply or demand, we can reduce the SoC swing for the battery array and lower the SoC of the array. A secondary helpful effect is that, for fixed and given amount of energy delivered to the load device, an improvement in the overall charge cycle efficiency of the HEES system translates into a further reduction in both the average SoC and the SoC swing of the battery array. The proposed charge management algorithm for a Li-ion battery -supercapacitor bank HEES system is simulated and compared to a homogeneous EES system comprised of Li-ion batteries only. Experimental results show significant performance enhancements for the HEES system, an increase of up to 21.9% and 4.82x in terms of the cycle efficiency and cycle life, respectively. Keywords: hybrid electrical energy storage system, charge management, state of health.

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Critical Review on Internal and External Battery Thermal Management Systems for Fast Charging Applications

Thakur

Ahmed

Kang

et al. 2022

Advanced Energy Materials

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A capacity and power fade study of Li-ion cells during life cycle testing

Cited by 77 publications

References 4 publications

Power capability analysis in lithium ion batteries using electrochemical impedance spectroscopy

Power capability analysis in lithium ion batteries using electrochemical impedance spectroscopy

State of health aware charge management in hybrid electrical energy storage systems

Critical Review on Internal and External Battery Thermal Management Systems for Fast Charging Applications

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