Open AccessEditors’ Choice—4D Neutron and X-ray Tomography Studies of High Energy Density Primary Batteries: Part I. Dynamic Studies of LiSOCl2 during Discharge
Author(s) -
R. Ziesche,
James B. Robinson,
Matthew D. R. Kok,
Henning Markötter,
W. Kockelmann,
Nikolay Kardjilov,
Ingo Manke,
Dan J. L. Brett,
Paul R. Shearing
Publication year - 2020
Publication title -
journal of the electrochemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.258
H-Index - 271
eISSN - 1945-7111
pISSN - 0013-4651
DOI - 10.1149/1945-7111/abbbbc
Subject(s) - neutron imaging , neutron , observable , battery (electricity) , temporal resolution , x ray , materials science , energy (signal processing) , physics , nuclear physics , optics , power (physics) , quantum mechanics
The understanding of dynamic processes in Li-metal batteries is an important consideration to enable the full capacity of cells to be utilised. These processes, however, are generally not directly observable using X-ray techniques due to the low attenuation of Li; and are challenging to visualise using neutron imaging due to the low temporal resolution of the technique. In this work, complementary X-ray and neutron imaging are combined to track the dynamics of Li within a primary Li/SOCl 2 cell. The temporal challenges posed by neutron imaging are overcome using the golden ratio imaging method which enables the identification of Li diffusion in operando . This combination of techniques has enabled an improved understanding of the processes which limit rate performance in Li/SOCl 2 cells and may be applied beyond this chemistry to other Li-metal cells.