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Frégonèse, Marion; Idrissi, Hassane; Mazille, H.; Renaud, L.; Cètre, Y.

doi:10.1023/a:1004891514836

Cited by 66 publications

(46 citation statements)

References 11 publications

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“…8(b). By considering this range is similar with that of the metal corrosion-generated H 2 bubble (i.e., 100 kHz), 24) the above-mentioned active AE source mechanism of anode can be more supported.…”

Section: Relationship Between Ae Parameters and Mechanical/chemical Dmentioning

confidence: 67%

“…Damages including cracking, dissolution of metal ions, structural change of the electrode material, and delamination can occur on the cathode. 24) Moreover, a Solid Electrolyte Interface (SEI) layer can be formed on the surface of anode. The accumulated micro-scale damages inside the battery could be the causes of a reduced battery life, as well as of explosions.…”

Section: Introductionmentioning

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: Relationship Between Ae Parameters and Mechanical/chemical Dmentioning

confidence: 67%

Section: Introductionmentioning

confidence: 99%

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

2015

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“…The hydrogen bubbles have long been recognized as potential AE sources during corrosion processes. 3,4,15,16) (2) Second type AE signals, II, are also observed in all specimens. However, the fraction of these signals reduces notably after a certain time interval (e.g.…”

Section: Resultsmentioning

confidence: 85%

“…AE is widely used in detection and monitoring of corrosion and stress corrosion cracking. [3][4][5][6][7] Many attempts are also known to correlate the rate of corrosion and AE parameters. 8) HIC was also in focus of many studies, e.g.. 9) Using bivariate correlation between the AE energy and signal duration Simano et al 9) successfully discriminated AE features corresponding to HIC from other relevant sources, such as hydrogen evolution and formation and/or cracking of the iron sulfide layer.…”

Section: Introductionmentioning

confidence: 99%

Acoustic Emission during Hydrogen Charging of a Pipeline Steel

Мерсон

Dement'ev

Ioffe³

et al. 2011

ISIJ Int.

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Acoustic emission (AE) during hydrogen-induced cracking (HIC) of low-carbon pipeline steel immersed into H2S containing media was investigated aiming at discriminating between damage mechanisms and getting a better insight on the kinetics of damage. Two kinds of steel samples -sensitive and resistant to hydrogen induced cracking -were tested. Three different kinds of acoustic emission signals were discriminated by a cluster analysis involving either spectral shape recognition or parametric c-means classifier. It is demonstrated that AE is associated with three primary mechanisms involving hydrogen bubbles evolution, sulfide film formation and fracture due to HIC. Hence, AE is shown to be very efficient for quantitative description of hydrogen induced damage accumulation in steels.

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“…They reported that "AE activity is closely related to the current density and therefore pitting rate". More recently, Fregonese et al [17] studied the response of AE to the development of pitting corrosion on AISI 316L austentic stainless steel in a 3% NaCl solution. They demonstrated that AE was able to differentiate between the initiation and the propagation stage, where in the latter case the evolution of hydrogen bubbles were the reported cause of emission.…”

Section: Principles Of Aementioning

confidence: 99%

Influence of diurnal and seasonal temperature variations on the detection of corrosion in reinforced concrete by acoustic emission

2005

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Chloride rich reinforced concrete prisms were coupled to chloride free prisms and exposed to diurnal and seasonal temperature cycles typical of those found in the UK.Acoustic Emissions (AE) and galvanic currents were continuously monitored and correlated with ambient temperature. AE and galvanic currents were found to emulate the evolution of temperature in the diurnal cycles, although no specific relationship between AE and galvanic current could be obtained. The influence of seasonal variations in galvanic current had no obvious influence on AE Energy per second over the range of corrosion rates studied. The findings suggest that AE is more sensitive to short term (diurnal) changes in corrosion rates than the longer (seasonal) effects. It was hypothesised that this is due to transitory changes in the internal microclimate of the concrete.

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Cited by 66 publications

References 11 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

Acoustic Emission during Hydrogen Charging of a Pipeline Steel

Influence of diurnal and seasonal temperature variations on the detection of corrosion in reinforced concrete by acoustic emission

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