In Situ Neutron Imaging Of Alkaline and Lithium Batteries

Autor:	Daniel S. Hussey, Grant V. Riley, David Jacobson
Rok vydání:	2010
Předmět:	In situ Materials science chemistry Neutron imaging Radiochemistry chemistry.chemical_element Lithium
Zdroj:	ECS Transactions. 25:75-83
ISSN:	1938-6737 1938-5862
DOI:	10.1149/1.3414005
Popis:	We report on in situ tomographic (three dimensional) measurements of alkaline and lithium primary AA cells during constant current discharge to zero charge. The measurement spatial resolution was 150 um, and the relative uncertainty due only to counting statistics was of order a few percent for a one hour measurement time. The results for alkaline cells are consistent with the current understanding of discharge. The degree of anode utilization is seen to depend on discharge current, with a 0.5 A resulting in more complete utilization than that of a 1 A discharge. The lithium primary cell data has an additional systematic uncertainty due to beam hardening, which can be corrected. In these corrected images, the center of the jelly roll, which is initial empty, fills with cathode material and changes in the cell are similar for a 1 A and 0.1 A discharge rate.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7ae52a4888f00060347f99c84686a7d3 https://doi.org/10.1149/1.3414005 Zobrazit plný text záznamu