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Title: A Convenient and Versatile Method To Control the Electrode Microstructure toward High-Energy Lithium-Ion Batteries

Control over porous electrode microstructure is critical for the continued improvement of electrochemical performance of lithium ion batteries. This paper describes a convenient and economical method for controlling electrode porosity, thereby enhancing material loading and stabilizing the cycling performance. Sacrificial NaCl is added to a Si-based electrode, which demonstrates an areal capacity of ~4 mAh/cm 2 at a C/10 rate (0.51 mA/cm 2) and an areal capacity of 3 mAh/cm 2 at a C/3 rate (1.7 mA/cm 2), one of the highest material loadings reported for a Si-based anode at such a high cycling rate. X-ray microtomography confirmed the improved porous architecture of the SiO electrode with NaCl. The method developed here is expected to be compatible with the state-of-the-art lithium ion battery industrial fabrication processes and therefore holds great promise as a practical technique for boosting the electrochemical performance of lithium ion batteries without changing material systems.
Authors:
 [1] ;  [2] ;  [3] ;  [1] ;  [1] ;  [1] ;  [2] ;  [1] ;  [1]
  1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Energy Technologies Area
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
  3. Istanbul Technical Univ., Istanbul (Turkey). Energy Inst.
Publication Date:
Grant/Contract Number:
AC02-05CH11231
Type:
Accepted Manuscript
Journal Name:
Nano Letters
Additional Journal Information:
Journal Volume: 16; Journal Issue: 7; Journal ID: ISSN 1530-6984
Publisher:
American Chemical Society
Research Org:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; conductive polymer binder; high loading; high-capacity anode; lithium-ion battery; Porosity; X-ray tomography
OSTI Identifier:
1426723

Zhao, Hui, Yang, Qing, Yuca, Neslihan, Ling, Min, Higa, Kenneth, Battaglia, Vincent S., Parkinson, Dilworth Y., Srinivasan, Venkat, and Liu, Gao. A Convenient and Versatile Method To Control the Electrode Microstructure toward High-Energy Lithium-Ion Batteries. United States: N. p., Web. doi:10.1021/acs.nanolett.6b02156.
Zhao, Hui, Yang, Qing, Yuca, Neslihan, Ling, Min, Higa, Kenneth, Battaglia, Vincent S., Parkinson, Dilworth Y., Srinivasan, Venkat, & Liu, Gao. A Convenient and Versatile Method To Control the Electrode Microstructure toward High-Energy Lithium-Ion Batteries. United States. doi:10.1021/acs.nanolett.6b02156.
Zhao, Hui, Yang, Qing, Yuca, Neslihan, Ling, Min, Higa, Kenneth, Battaglia, Vincent S., Parkinson, Dilworth Y., Srinivasan, Venkat, and Liu, Gao. 2016. "A Convenient and Versatile Method To Control the Electrode Microstructure toward High-Energy Lithium-Ion Batteries". United States. doi:10.1021/acs.nanolett.6b02156. https://www.osti.gov/servlets/purl/1426723.
@article{osti_1426723,
title = {A Convenient and Versatile Method To Control the Electrode Microstructure toward High-Energy Lithium-Ion Batteries},
author = {Zhao, Hui and Yang, Qing and Yuca, Neslihan and Ling, Min and Higa, Kenneth and Battaglia, Vincent S. and Parkinson, Dilworth Y. and Srinivasan, Venkat and Liu, Gao},
abstractNote = {Control over porous electrode microstructure is critical for the continued improvement of electrochemical performance of lithium ion batteries. This paper describes a convenient and economical method for controlling electrode porosity, thereby enhancing material loading and stabilizing the cycling performance. Sacrificial NaCl is added to a Si-based electrode, which demonstrates an areal capacity of ~4 mAh/cm2 at a C/10 rate (0.51 mA/cm2) and an areal capacity of 3 mAh/cm2 at a C/3 rate (1.7 mA/cm2), one of the highest material loadings reported for a Si-based anode at such a high cycling rate. X-ray microtomography confirmed the improved porous architecture of the SiO electrode with NaCl. The method developed here is expected to be compatible with the state-of-the-art lithium ion battery industrial fabrication processes and therefore holds great promise as a practical technique for boosting the electrochemical performance of lithium ion batteries without changing material systems.},
doi = {10.1021/acs.nanolett.6b02156},
journal = {Nano Letters},
number = 7,
volume = 16,
place = {United States},
year = {2016},
month = {6}
}