Neutron depth profiling of Li-ion cell electrodes with a gas-controlled environment

Shrikant C. Nagpure; Padhraic Mulligan; Marcello Canova; Lei R. Cao

doi:10.1016/j.jpowsour.2013.09.032

Neutron depth profiling of Li-ion cell electrodes with a gas-controlled environment

Shrikant C. Nagpure, Padhraic Mulligan, Marcello Canova, Lei R. Cao

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

Abstract

Neutron depth profiling (NDP) is a nondestructive technique that has been applied to characterize the lithium concentration in the electrode materials of Li-ion batteries as a function of depth. NDP measurements have been traditionally performed ex-situ, under vacuum of the order of 10^-6 Torr to avoid any change in the residual energy of the charged particles as they emerge from the sample surface. In this work, we describe the design of the NDP measurement facility that allows for conducting tests at variable pressure conditions, through an inert gas atmosphere. This study enhances the ability of the conventional NDP instrument to measure lithium concentration of air-sensitive materials without exposure to atmospheric conditions and under inert gas atmosphere. Furthermore, it provides the opportunity to conduct in-situ NDP on Li-ion cells using liquid electrolytes that would otherwise evaporate at high vacuum conditions.

Original language	English
Pages (from-to)	489-497
Number of pages	9
Journal	Journal of Power Sources
Volume	248
DOIs	https://doi.org/10.1016/j.jpowsour.2013.09.032
State	Published - 2014
Externally published	Yes

Funding

This material is based upon work supported by the Department of Energy under Award Number DE-PI0000012 . This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof.

Keywords

Li-ion batteries
Lithium concentration
Measurement techniques
Neutron depth profiling

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.jpowsour.2013.09.032

Cite this

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abstract = "Neutron depth profiling (NDP) is a nondestructive technique that has been applied to characterize the lithium concentration in the electrode materials of Li-ion batteries as a function of depth. NDP measurements have been traditionally performed ex-situ, under vacuum of the order of 10-6 Torr to avoid any change in the residual energy of the charged particles as they emerge from the sample surface. In this work, we describe the design of the NDP measurement facility that allows for conducting tests at variable pressure conditions, through an inert gas atmosphere. This study enhances the ability of the conventional NDP instrument to measure lithium concentration of air-sensitive materials without exposure to atmospheric conditions and under inert gas atmosphere. Furthermore, it provides the opportunity to conduct in-situ NDP on Li-ion cells using liquid electrolytes that would otherwise evaporate at high vacuum conditions.",

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AU - Mulligan, Padhraic

AU - Canova, Marcello

AU - Cao, Lei R.

PY - 2014

Y1 - 2014

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AB - Neutron depth profiling (NDP) is a nondestructive technique that has been applied to characterize the lithium concentration in the electrode materials of Li-ion batteries as a function of depth. NDP measurements have been traditionally performed ex-situ, under vacuum of the order of 10-6 Torr to avoid any change in the residual energy of the charged particles as they emerge from the sample surface. In this work, we describe the design of the NDP measurement facility that allows for conducting tests at variable pressure conditions, through an inert gas atmosphere. This study enhances the ability of the conventional NDP instrument to measure lithium concentration of air-sensitive materials without exposure to atmospheric conditions and under inert gas atmosphere. Furthermore, it provides the opportunity to conduct in-situ NDP on Li-ion cells using liquid electrolytes that would otherwise evaporate at high vacuum conditions.

KW - Li-ion batteries

KW - Lithium concentration

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ER -

Neutron depth profiling of Li-ion cell electrodes with a gas-controlled environment

Abstract

Funding

Keywords

UN SDGs

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