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Multinuclear MR and MRI study of lithium-ion cells using a variable field magnet and a fixed frequency RF probe
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作者 Andrés Ramírez Aguilera Florin Marica +4 位作者 Kevin J.Sanders Md Al Raihan C.Adam Dyker Gillian R.Goward Bruce J.Balcom 《Magnetic Resonance Letters》 2024年第1期10-20,共11页
An exploratory multinuclear magnetic resonance(MR)and magnetic resonance imaging(MRI)study was performed on lithium-ion battery cells with ^(7)Li,^(19)F,and ^(1)H measurements.A variable field superconducting magnet w... An exploratory multinuclear magnetic resonance(MR)and magnetic resonance imaging(MRI)study was performed on lithium-ion battery cells with ^(7)Li,^(19)F,and ^(1)H measurements.A variable field superconducting magnet with a fixed frequency parallel-plate radiofrequency(RF)probe was employed in the study.The magnetic field was changed to set the resonance frequency of each nucleus to the fixed RF probe frequency of 33.7 MHz.Two cartridge-like lithium-ion cells,with graphite anodes and LiNi_(0.5)Mn_(0.3)Co_(0.2)O_(2)(NMC)cathodes,were interrogated.One cell was pristine,and one was charged to a cell voltage of 4.2 V.The results presented demonstrate the great potential of the variable field magnet approach in multinuclear measurement of lithium-ion batteries.These methods open the door for developing faster and simpler methods for detecting,quantifying,and interpreting MR and MRI data from lithium-ion and other batteries. 展开更多
关键词 Multinuclear MR/MRI Variable field magnet Lithium-ion battery Parallel-plate rf probe
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