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Quantifying the dependence of dead lithium losses on the cycling period in lithium metal batteries

Aryanfar, Asghar and Brooks, Daniel J. and Colussi, Agustín J. and Hoffmann, Michael R. (2014) Quantifying the dependence of dead lithium losses on the cycling period in lithium metal batteries. Physical Chemistry Chemical Physics, 16 (45). pp. 24965-24970. ISSN 1463-9076.

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We quantify the effects of the duration of the charge–discharge cycling period on the irreversible loss of anode material in rechargeable lithium metal batteries. We have developed a unique quantification method for the amount of dead lithium crystals (DLCs) produced by sequences of galvanostatic charge–discharge periods of variable duration τ in a coin battery of novel design. We found that the cumulative amount of dead lithium lost after 144 Coulombs circulated through the battery decreases sevenfold as τ shortens from 16 to 2 hours. We ascribe this outcome to the faster electrodissolution of the thinner dendrite necks formed in the later stages of long charging periods. This phenomenon is associated with the increased inaccessibility of the inner voids of the peripheral, late generation dendritic structures to incoming Li+.

Item Type:Article
Related URLs:
URLURL TypeDescription
Aryanfar, Asghar0000-0002-8890-077X
Colussi, Agustín J.0000-0002-3400-4101
Hoffmann, Michael R.0000-0001-6495-1946
Additional Information:© 2014 the Owner Societies. Received 12 Aug 2014, Accepted 10 Oct 2014, First published online 10 Oct 2014. This work was sponsored by Bill and Melinda Gates Foundation Grant No. OPP1069500 on energy and environmental sustainability.
Funding AgencyGrant Number
Bill and Melinda Gates FoundationOPP1069500
Issue or Number:45
Record Number:CaltechAUTHORS:20141023-083024547
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:50716
Deposited By: Tony Diaz
Deposited On:23 Oct 2014 16:05
Last Modified:03 Mar 2020 13:01

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