In situ measurements of the stress changes in thin-film electrodes

Scarmínio, Jair; Sahu, Swati; Decker, F.

doi:10.1088/0022-3735/22/9/014

Cited by 18 publications

(15 citation statements)

References 5 publications

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“…Fairly sophisticated methods for tracking this deflection have been developed in the last 20 years. The more popular make use of interferometry, , capacitance measurements, laser beam reflection, − and scanning tunneling microscopy/atomic force microscopy. − …”

Section: Introductionmentioning

confidence: 99%

In Situ Stress and Nanogravimetric Measurements during Underpotential Deposition of Bismuth on (111)-Textured Au

Stafford

Bertocci

2006

J. Phys. Chem. B

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The surface stress associated with the underpotential deposition (upd) of bismuth on (111)-textured Au is examined, using the wafer curvature method, in acidic perchlorate and nitrate supporting electrolyte. The surface stress is correlated to Bi coverage by independent nanogravimetric measurements using an electrochemical quartz crystal nanobalance. The mass increase measured in the presence of perchlorate is consistent with the (2 x 2) and (p x square root 3)-2Bi adlayers reported in the literature. ClO(4)(-) does not play a significant role in the upd process. The complete Bi monolayer causes an overall surface stress change of about -1.4 N m(-1). We attribute this compressive stress to the formation of Bi-Au bonds which partially satisfy the bonding requirements of the Au surface atoms, thereby reducing the tensile surface stress inherent to the clean Au surface. At higher Bi coverage, an additional contribution to the compressive stress is due to the electrocompression of the (p x square root 3)-2Bi adlayer. In nitric acid electrolyte, NO(3)(-) coadsorbs with Bi over the entire upd region but has little fundamental impact on adlayer structure and stress.

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Section: Introductionmentioning

confidence: 99%

In Situ Stress and Nanogravimetric Measurements during Underpotential Deposition of Bismuth on (111)-Textured Au

Stafford

Bertocci

2006

J. Phys. Chem. B

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“…Curvature measurements (basics and applications of the LBPD [23][24][25][26][27][28][29] and basics and applications of the MOSS [30][31][32][33][34][35][36][37][38])…”

Section: Methods Advantages Disadvantagesmentioning

confidence: 99%

“…In 1989, Scarminio et al [24] first built the LBPD as shown in Figure 2a based on the Stoney equation to measure the curvature evolution of a Pd electrode during a variety of electrochemical reactions. The He-Ne laser generator produces a laser beam striking on the beam reflector, the reflective beam of which strikes on the beam splitter.…”

Section: Laser Beam Position Detectormentioning

confidence: 99%

“…where D denotes the distance between points A and E, and d denotes the distance between points B and F. Block diagram of in situ stress measurements for a film object: (a) a thin-film electrode [24]; and (b) a cantilever [25].…”

Section: Laser Beam Position Detectormentioning

confidence: 99%

“…During electrochemical cycling, Pyun et al [28] observed the Figure 2. Block diagram of in situ stress measurements for a film object: (a) a thin-film electrode [24]; and (b) a cantilever [25].…”

Section: Laser Beam Position Detectormentioning

confidence: 99%

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In Situ Stress Measurement Techniques on Li-ion Battery Electrodes: A Review

Cheng

Pecht

2017

Energies

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Li-ion batteries experience mechanical stress evolution due in part to Li intercalation into and de-intercalation out of the electrodes, ultimately resulting in performance degradation. In situ measurements of electrode stress can be used to analyze stress generation factors, verify mechanical deformation models, and validate degradation mechanisms. They can also be embedded in Li-ion battery management systems when stress sensors are either implanted in electrodes or attached on battery surfaces. This paper reviews in situ measurement methods of electrode stress based on optical principles, including digital image correlation, curvature measurement, and fiber optical sensors. Their experimental setups, principles, and applications are described and contrasted. This literature review summarizes the current status of these stress measurement methods for battery electrodes and discusses recent developments and trends.

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