<i>In operando</i> visualization of electrolyte stratification dynamics in lead-acid battery using phase-contrast X-ray imaging

Takamatsu, Daiko; Hirano, Takuichi; Yoneyama, Akio; Kimura, Takayuki; Harada, Motoko; Terada, Masayuki; Okoshi, Tetsuro

doi:10.1039/d0cc03592k

Cited by 10 publications

(4 citation statements)

References 16 publications

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“…The observed concentration-dependent discrepancies can be attributed to electrolyte non-uniformities, for example, in the form of a stratification effect known from lead-acid batteries. [55] The performed studies yielded an interesting correlation between loss of lithium inventory and decomposition of lithium salt in the electrolyte. Both values have been found decreasing in a similar manner and with similar magnitude in the course of extensive cycling.…”

Section: Discussionmentioning

confidence: 97%

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Aging‐Driven Composition and Distribution Changes of Electrolyte and Graphite Anode in 18650‐Type Li‐Ion Batteries

Petz

Baran

Peschel

et al. 2022

Advanced Energy Materials

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A series of low‐temperature studies on LiNi0.80Co0.15Al0.05O2 18650‐type batteries of high‐energy type with different stabilized states of fatigue is carried out using spatially resolved neutron powder diffraction, infrared/thermal imaging, and quasi‐adiabatic calorimetry. In‐plane distribution of lithium in the graphite anode and frozen electrolyte in fully charged state is determined non‐destructively with neutron diffraction and correlated to the introduced state of fatigue. An independent electrolyte characterization is performed via calorimetry studies on variously aged 18650‐type lithium‐ion batteries, where the shape of the thermodynamic signal is evolving with the state of fatigue of the cells. Analyzing the liquid electrolyte extracted/harvested from the studied cells reveals the decomposition of conducting salt to be the main driving factor for fatigue in the electrolyte degradation.

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Section: Discussionmentioning

confidence: 97%

“…The observed concentration‐dependent discrepancies can be attributed to electrolyte non‐uniformities, for example, in the form of a stratification effect known from lead‐acid batteries. [ 55 ]…”

Section: Discussionmentioning

confidence: 99%

Aging‐Driven Composition and Distribution Changes of Electrolyte and Graphite Anode in 18650‐Type Li‐Ion Batteries

Petz

Baran

Peschel

et al. 2022

Advanced Energy Materials

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“…was used as the electrolyte. Observations were LAB observations have also been performed using a LAB model cell with a galvanostat (GS), using the same procedure as for LIB [72]. A lead-oxide (PbO 2 ) cell was used as the positive electrode, a lead (Pb) cell was used as the negative electrode, and a 37 wt% dilute sulfuric acid solution (H 2 SO 4 aq.)…”

Section: Industrial Applications (Operando Observation Of Electrolyte...mentioning

confidence: 99%

Crystal-Based X-ray Interferometry and Its Application to Phase-Contrast X-ray Imaging, Zeff Imaging, and X-ray Thermography

et al. 2023

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Crystal-based X-ray interferometry (CXI) detects X-ray phase shifts by using the superposition of waves, and its sensitivity is the highest among the other X-ray phase-detecting methods. Therefore, phase-contrast X-ray imaging (PCXI) using CXI has the highest density resolution among the PCXI methods and enables fine, non-destructive observation with a density resolution below sub-mg/cm3. It has thus been applied in a wide range of fields, including biology, medicine, geology, and industry, such as visualization of the testis and brains of aged rats with tumors, human embryos at each Carnegie stage, air hydrates in old Antarctic ice, and ion distribution in electrolytes. Novel imaging methods have also been developed to take advantage of its high sensitivity, such as visualization of the effective atomic number (Zeff) and the three-dimensional temperature of samples. This article reviews the principles and history of PCXI and crystal-based X-ray interferometers, as well as a CXI system using synchrotron radiation and its potential applications from biomedical to industrial.

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“…A phase-contrast X-ray imaging system equipped with a two-crystal XI consisting of two crystal blocks, each having two crystal wafers, has been developed for non-destructive 3D observation of large samples at the Photon Factory in Japan (Yoneyama et al, 2013), and researchers have taken advantage of its high sensitivity to carry out various observations in biomedicine (Yoneyama et al, 2006;Noda-Saita et al, 2006;Takeda et al, 2012;Yamada et al, 2012;Kishimoto et al, 2016;Thet Thet et al, 2018;Kanahashi et al, 2019), environmental science (Takeya, 2006) and industrial science (Takeya et al, 2012;Mimachi et al, 2015;Takamatsu et al, 2018Takamatsu et al, , 2020. The advantages of two-crystal XI are its large field of view (>30 mm 2 ) and large sample space; on the other hand, operation of such an interferometer requires extremely high Schematic view of the phase imaging system using an X-ray grating-based interferometer.…”

Section: Phase-contrast X-ray Imaging (Phase Imaging)mentioning

confidence: 99%

Advanced X-ray imaging at beamline 07 of the SAGA Light Source

Yoneyama¹,

Takeya²,

Lwin³

et al. 2021

J Synchrotron Radiat

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The SAGA Light Source provides X-ray imaging resources based on high-intensity synchrotron radiation (SR) emitted from the superconducting wiggler at beamline 07 (BL07). By combining quasi-monochromatic SR obtained by the newly installed water-cooled metal filter and monochromatic SR selected by a Ge double-crystal monochromator (DCM) with high-resolution lens-coupled X-ray imagers, fast and low-dose micro-computed tomography (CT), fast phase-contrast CT using grating-based X-ray interferometry, and 2D micro-X-ray absorption fine structure analysis can be performed. In addition, by combining monochromatic SR obtained by a Si DCM with large-area fiber-coupled X-ray imagers, high-sensitivity phase-contrast CT using crystal-based X-ray interferometry can be performed. Low-temperature CT can be performed using the newly installed cryogenic system, and time-resolved analysis of the crystallinity of semiconductor devices in operation can be performed using a time-resolved topography system. The details of each instrument and imaging method, together with exemplary measurements, are presented.

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In operando visualization of electrolyte stratification dynamics in lead-acid battery using phase-contrast X-ray imaging

Abstract: An understanding of electrolyte stratification behaviors in lead-acid battery electrolytes during battery operation is important for optimal operation and design of lead-acid batteries for vehicle applications. In this paper, we...

Cited by 10 publications

References 16 publications

Aging‐Driven Composition and Distribution Changes of Electrolyte and Graphite Anode in 18650‐Type Li‐Ion Batteries

Aging‐Driven Composition and Distribution Changes of Electrolyte and Graphite Anode in 18650‐Type Li‐Ion Batteries

Crystal-Based X-ray Interferometry and Its Application to Phase-Contrast X-ray Imaging, Zeff Imaging, and X-ray Thermography

Advanced X-ray imaging at beamline 07 of the SAGA Light Source

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