Capacity fade study of lithium-ion batteries cycled at high discharge rates

Ning, Gang; Haran, Bala; Popov, Branko N.

doi:10.1016/s0378-7753(03)00029-6

Cited by 552 publications

(369 citation statements)

References 14 publications

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“…Large number of AE signals which detected during the first cycles seems to be related to the internal damage such as SEI formation that have been reported to occur rapidly during the initial charge/discharge process. 2,3) The total AE ring-down counts detected in the charge and discharge process during 21 total cycles were 11343 (40%) and 17097 (60%), respectively. A little bit more ring-down count was detected during discharge process than that of charge process.…”

Section: Methodsmentioning

confidence: 99%

“…It was reported that the formation of SEI layer accompanying gas bubble mostly occurs on the first charge/discharge process. 2,3) The initially formed SEI layer on the anode suppresses further formation of the layer (i.e., product of lithium electrolyte reaction), and hence, slows down the growth rate of the layer. In turn, the evolution of resulting gas bubble (i.e., AE ring-down count) should slowly increase with cycle.…”

Section: Relationship Between Ae Parameters and Mechanical/chemical Dmentioning

confidence: 99%

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Damage Evaluation in Lithium Cobalt Oxide/Carbon Electrodes of Secondary Battery by Acoustic Emission Monitoring

2015

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Acoustic Emission (AE) technique was employed for evaluating charge/discharge damage in a lithium-ion battery. A coin-type battery of lithium cobalt oxide/carbon electrodes was used for acoustic monitoring during accelerated charge/discharge cycle test. A number of AE signals were successfully detected during charge/discharge. Microstructural observation of the electrodes after the cycle test revealed mechanical damage such as micro-cracking of the cathode and chemical damage such as solid electrolyte interphase (SEI) layer formed on the anode. The detected AE signals were classified into two distinct types (i.e., type 1 and type 2) based on the AE waveform parameters (i.e., duration and amplitude). The main frequency component of the type 1 signal with short duration and high amplitude was in the range of 121160 kHz, whereas the frequency of type 2 signals with long duration and low amplitude was between 81 and 120 kHz. Active AE source of type 1 and type 2 signal was attributed to micro-cracking in cathode and gas bubble accompanied by SEI layer formation on anode, respectively. These results demonstrate the feasibility of the AE technique for the evaluation of charge/discharge degradation of secondary battery.

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Section: Methodsmentioning

confidence: 99%

Section: Relationship Between Ae Parameters and Mechanical/chemical Dmentioning

confidence: 99%

Damage Evaluation in Lithium Cobalt Oxide/Carbon Electrodes of Secondary Battery by Acoustic Emission Monitoring

2015

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“…1,14,16,18,19 Therefore, the side reactions on the anode surface are accelerated and the passive layer grows further. All these processes increase the consumption of cyclable lithium and the impedance of the cell.…”

mentioning

confidence: 99%

Impact of Temperature and Discharge Rate on the Aging of a LiCoO₂/LiNi_0.8Co_0.15Al_0.05O₂Lithium-Ion Pouch Cell

Keil

Schuster

et al. 2017

J. Electrochem. Soc.

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This paper presents a lithium-ion battery aging study in which pouch cells comprising a LiCoO 2 /LiNi 0.8 Co 0.15 Al 0.05 O 2 blended cathode and a graphite anode are examined. The study focuses on the impact of temperature and discharge rate on the cycle life of the tested cells. Compared to the aging behavior of other lithium-ion cells in the literature, the cells tested here are less sensitive to the discharge rate but more vulnerable to low temperature cycling. The vulnerability to low temperature mainly comes from cathode degradation, especially of the LiCoO 2 component. This is identified by electrochemical impedance spectroscopy, differential voltage analysis and incremental capacity analysis. The cells are able to achieve 3000-5000 cycles before reaching a capacity fade of 20%, also at higher discharge rates up to 5C. All in all, the high discharge rate capability could be a general advantage of pouch cells due to less mechanical and thermal stress in their geometry. Furthermore, more attention should be paid to the cathode health in low temperature applications of lithium-ion cells containing layered oxides. This paper focuses mainly on non-invasive aging detection methods for lithium-ion cells. Post-mortem results will be published in a following paper.

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“…A number of publications discuss the need to quantify the energy capacity within a battery cell [31][32][33][34] as a fundamental stage of assessing the appropriate EOL strategy for the battery, as discussed within the previous section, or for defining the battery SOC or SOH as part of the on-line 13 management of the battery system within an automotive [35] or grid storage application [36]. the challenge of measuring capacity retention is discussed within the context of cells subject to cyclic electrical loading [32] and those that experience capacity fade due to extended periods of storage [31].…”

Section: Review Of Academic Literaturementioning

confidence: 99%

“…Actual capacity defines the energy that may be extracted from the cell (from a fully charged state) when the battery is aged or when the battery is being discharged under conditions that are different from those defined as nominal by the manufacturer. The influence of C-rate at a cell level and pack level and the impact of temperature on cell capacity measurement is widely reported [33,38,39]. Within [40], the authors describe an increase in measured capacity for cell temperatures in excess of 40 0 C compared to when the battery is operated at lower temperatures.…”

Section: Review Of Academic Literaturementioning

confidence: 99%

Accelerated energy capacity measurement of lithium-ion cells to support future circular economy strategies for electric vehicles

Groenewald

Grandjean

Marco

2017

Renewable and Sustainable Energy Reviews

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Within the academic and industrial communities there has been an increasing desire to better understand the sustainability of producing vehicles that contain embedded electrochemical energy storage. Underpinning a number of studies that evaluate different circular economy strategies for the electric vehicle (EV) or Hybrid electric vehicle (HEV) battery system are implicit assumptions about the retained capacity or State of Health (SOH) of the battery. International standards and best-practice guides exist that address the performance evaluation of both EV and HEV battery systems. However, a common theme is that the test duration can be excessive and last for a number of hours. The aim of this research is to assess whether energy capacity measurements of Li-ion cells can be accelerated; reducing the test duration to a value that may facilitate further EOL options. Experimental results are presented that highlight it is possible to significantly reduce the duration of the battery characterisation test by 70% -90% while still retaining levels of measurement accuracy for retained energy capacity in the order of 1% for cell temperatures equal to 25 0 C. Even at elevated temperatures of 40 0 C, the peak measurement error was found to be only 3%. Based on these experimental results, a simple cost-function is formulated to highlight the flexibility of the proposed test framework. This approach would allow different organizations to prioritize the relative importance of test accuracy verses experimental test time when grading used Li-ion cells for different end-of-life (EOL) applications.

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Capacity fade study of lithium-ion batteries cycled at high discharge rates

Cited by 552 publications

References 14 publications

Damage Evaluation in Lithium Cobalt Oxide/Carbon Electrodes of Secondary Battery by Acoustic Emission Monitoring

Damage Evaluation in Lithium Cobalt Oxide/Carbon Electrodes of Secondary Battery by Acoustic Emission Monitoring

Impact of Temperature and Discharge Rate on the Aging of a LiCoO₂/LiNi_0.8Co_0.15Al_0.05O₂Lithium-Ion Pouch Cell

Accelerated energy capacity measurement of lithium-ion cells to support future circular economy strategies for electric vehicles

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Capacity fade study of lithium-ion batteries cycled at high discharge rates

Cited by 552 publications

References 14 publications

Damage Evaluation in Lithium Cobalt Oxide/Carbon Electrodes of Secondary Battery by Acoustic Emission Monitoring

Damage Evaluation in Lithium Cobalt Oxide/Carbon Electrodes of Secondary Battery by Acoustic Emission Monitoring

Impact of Temperature and Discharge Rate on the Aging of a LiCoO2/LiNi0.8Co0.15Al0.05O2Lithium-Ion Pouch Cell

Accelerated energy capacity measurement of lithium-ion cells to support future circular economy strategies for electric vehicles

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Impact of Temperature and Discharge Rate on the Aging of a LiCoO₂/LiNi_0.8Co_0.15Al_0.05O₂Lithium-Ion Pouch Cell