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Title: Surface/interface effects on high-performance thin-film all-solid-state Li-ion batteries

The further development of all-solid-state batteries is still limited by the understanding/engineering of the interfaces formed upon cycling. Here, we correlate the morphological, chemical, and electrical changes of the surface of thin-film devices with Al negative electrodes. The stable Al–Li–O alloy formed at the stress-free surface of the electrode causes rapid capacity fade, from 48.0 to 41.5 μAh/cm 2 in two cycles. Surprisingly, the addition of a Cu capping layer is insufficient to prevent the device degradation. Furthermore, Si electrodes present extremely stable cycling, maintaining >92% of its capacity after 100 cycles, with average Coulombic efficiency of 98%.
Authors:
 [1] ;  [2] ;  [1] ;  [1] ;  [1] ;  [1] ;  [3] ;  [1]
  1. Univ. of Maryland, College Park, MD (United States)
  2. U.S. Army Research Lab., Adelphi, MD (United States); National Institute of Standards and Technology, Gaithersburg, MD (United States)
  3. Sandia National Lab. (SNL-CA), Livermore, CA (United States)
Publication Date:
Report Number(s):
SAND-2016-12381J
Journal ID: ISSN 1944-8244; 649746
Grant/Contract Number:
AC04-94AL85000
Type:
Accepted Manuscript
Journal Name:
ACS Applied Materials and Interfaces
Additional Journal Information:
Journal Volume: 7; Journal Issue: 47; Journal ID: ISSN 1944-8244
Publisher:
American Chemical Society (ACS)
Research Org:
Sandia National Lab. (SNL-CA), Livermore, CA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 25 ENERGY STORAGE; all-solid-state batteries; aluminum; energy storage; silicon; thin-films
OSTI Identifier:
1341747

Gong, Chen, Ruzmetov, Dmitry, Pearse, Alexander, Ma, Dakang, Munday, Jeremy N., Rubloff, Gary, Talin, A. Alec, and Leite, Marina S.. Surface/interface effects on high-performance thin-film all-solid-state Li-ion batteries. United States: N. p., Web. doi:10.1021/acsami.5b07058.
Gong, Chen, Ruzmetov, Dmitry, Pearse, Alexander, Ma, Dakang, Munday, Jeremy N., Rubloff, Gary, Talin, A. Alec, & Leite, Marina S.. Surface/interface effects on high-performance thin-film all-solid-state Li-ion batteries. United States. doi:10.1021/acsami.5b07058.
Gong, Chen, Ruzmetov, Dmitry, Pearse, Alexander, Ma, Dakang, Munday, Jeremy N., Rubloff, Gary, Talin, A. Alec, and Leite, Marina S.. 2015. "Surface/interface effects on high-performance thin-film all-solid-state Li-ion batteries". United States. doi:10.1021/acsami.5b07058. https://www.osti.gov/servlets/purl/1341747.
@article{osti_1341747,
title = {Surface/interface effects on high-performance thin-film all-solid-state Li-ion batteries},
author = {Gong, Chen and Ruzmetov, Dmitry and Pearse, Alexander and Ma, Dakang and Munday, Jeremy N. and Rubloff, Gary and Talin, A. Alec and Leite, Marina S.},
abstractNote = {The further development of all-solid-state batteries is still limited by the understanding/engineering of the interfaces formed upon cycling. Here, we correlate the morphological, chemical, and electrical changes of the surface of thin-film devices with Al negative electrodes. The stable Al–Li–O alloy formed at the stress-free surface of the electrode causes rapid capacity fade, from 48.0 to 41.5 μAh/cm2 in two cycles. Surprisingly, the addition of a Cu capping layer is insufficient to prevent the device degradation. Furthermore, Si electrodes present extremely stable cycling, maintaining >92% of its capacity after 100 cycles, with average Coulombic efficiency of 98%.},
doi = {10.1021/acsami.5b07058},
journal = {ACS Applied Materials and Interfaces},
number = 47,
volume = 7,
place = {United States},
year = {2015},
month = {10}
}