Interplay among recovery time, signal, and noise: Series- and parallel-tuned circuits are not always the same *This article is a US Government work and, as such, is in the public domain in the United States of America.

Miller, Joel B.; Suits, Bryan H.; Garroway, A. N.; Hepp, Mark A.

doi:10.1002/(sici)1099-0534(2000)12:3<125::aid-cmr2>3.3.co;2-g

Cited by 2 publications

References 20 publications

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Nuclear magnetic resonance spectroscopy of rechargeable pouch cell batteries: beating the skin depth by excitation and detection via the casing

Benders

Mohammadi

Klug

et al. 2020

Sci Rep

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Rechargeable batteries are notoriously difficult to examine nondestructively, and the obscurity of many failure modes provides a strong motivation for developing efficient and detailed diagnostic techniques that can provide information during realistic operating conditions. in-situ nMR spectroscopy has become a powerful technique for the study of electrochemical processes, but has mostly been limited to laboratory cells. One significant challenge to applying this method to commercial cells has been that the radiofrequency, required for nMR excitation and detection, cannot easily penetrate the battery casing due to the skin depth. this complication has limited such studies to special research cell designs or to 'inside-out' measurement approaches. this article demonstrates that it is possible to use the battery cell as a resonator in a tuned circuit, thereby allowing signals to be excited inside the cell, and for them to subsequently be detected via the resonant circuit. employing this approach, 7 Li nMR signals from the electrolyte, as well as from intercalated and plated metallic lithium in a multilayer (rolled) commercial pouch cell battery were obtained. therefore, it is anticipated that critical nondestructive device characterization can be performed with this technique in realistic and even commercial cell designs.

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Nuclear magnetic resonance spectroscopy of rechargeable pouch cell batteries: beating the skin depth by excitation and detection via the casing

Benders

Mohammadi

Klug

et al. 2020

Sci Rep

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Broadband matching of nuclear quadrupole resonance detector using non-Foster circuits

Rajab

Kaspar

et al. 2016

2016 Loughborough Antennas &Amp; Propagation Conference (LAPC)

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A new class of nuclear quadrupole resonance (NQR) detector based on non-Foster circuits (NFCs) is introduced. NQR is a solid-state radio frequency spectroscopic technique, allowing the detection of different substances based on their spectral profiles. Recently, non-Foster circuits have received significant interest for broadband impedance matching of small antennas; this principle will be used to develop highly matched, broadband antennas, which will allow very quick NQR detection from 1 MHz to 6 MHz.

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Interplay among recovery time, signal, and noise: Series- and parallel-tuned circuits are not always the same *This article is a US Government work and, as such, is in the public domain in the United States of America.

Cited by 2 publications

References 20 publications

Nuclear magnetic resonance spectroscopy of rechargeable pouch cell batteries: beating the skin depth by excitation and detection via the casing

Nuclear magnetic resonance spectroscopy of rechargeable pouch cell batteries: beating the skin depth by excitation and detection via the casing

Broadband matching of nuclear quadrupole resonance detector using non-Foster circuits

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