skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Probing the Reaction between PVDF and LiPAA vs Li 7Si 3 : Investigation of Binder Stability for Si Anodes

Abstract

The chemical interaction of the highly reactive lithiated Si anode with other cell components, such as binders and electrolytes, is one of the most vital issues in batteries using Si electrodes. In this work, crystalline lithium silicide (LS) with Li 7Si 3 composition is synthesized to study the direct chemical reactions between the lithiated Si anodes and two typical binders, polyvinylidenefluoride (PVDF) and lithiated polyacrylic acid (LiPAA). The solid-state nuclear magnetic resonance (NMR) and Raman characterization experiments show that LiPAA binder is chemically stable against LS. On the contrary, PVDF binder reacts more readily with the LS, resulting in critical loss of Li from the bulk. 13C NMR shows the C-H bonds and C-C PVDF backbone were affected, whereas 19F MAS NMR shows the C-F bonds are relatively more stable. No LiF is detected, however HF release is confirmed by gas chromatography/mass spectrometry. The characterization results are consistent with electrochemical tests, which show the Si electrode using LiPAA as the binder has a much higher cyclability than when compared with PVDF. This work demonstrates the using of LS as an effective approach to evaluate and investigate the reactions between lithiated Si and different cell components, in order to stabilize Simore » anodes.« less

Authors:
ORCiD logo [1];  [1];  [1];  [2]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1];  [1]
  1. Argonne National Lab. (ANL), Lemont, IL (United States)
  2. Argonne National Lab. (ANL), Lemont, IL (United States); Purdue Univ., West Lafayette, IN (United States)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE) - Office of Vehicle Technologies (VTO); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1568908
Alternate Identifier(s):
OSTI ID: 1550792
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Published Article
Journal Name:
Journal of the Electrochemical Society
Additional Journal Information:
Journal Volume: 166; Journal Issue: 12; Journal ID: ISSN 0013-4651
Publisher:
The Electrochemical Society
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; Batteries; Silicon; Binder; Lithium Silicide; Silicon Anode

Citation Formats

Han, Binghong, Piernas-Muñoz, Maria Jose, Dogan, Fulya, Kubal, Joseph, Trask, Stephen E., Bloom, Ira D., Vaughey, John T., and Key, Baris. Probing the Reaction between PVDF and LiPAA vs Li7Si3 : Investigation of Binder Stability for Si Anodes. United States: N. p., 2019. Web. doi:10.1149/2.0241912jes.
Han, Binghong, Piernas-Muñoz, Maria Jose, Dogan, Fulya, Kubal, Joseph, Trask, Stephen E., Bloom, Ira D., Vaughey, John T., & Key, Baris. Probing the Reaction between PVDF and LiPAA vs Li7Si3 : Investigation of Binder Stability for Si Anodes. United States. doi:10.1149/2.0241912jes.
Han, Binghong, Piernas-Muñoz, Maria Jose, Dogan, Fulya, Kubal, Joseph, Trask, Stephen E., Bloom, Ira D., Vaughey, John T., and Key, Baris. Fri . "Probing the Reaction between PVDF and LiPAA vs Li7Si3 : Investigation of Binder Stability for Si Anodes". United States. doi:10.1149/2.0241912jes.
@article{osti_1568908,
title = {Probing the Reaction between PVDF and LiPAA vs Li7Si3 : Investigation of Binder Stability for Si Anodes},
author = {Han, Binghong and Piernas-Muñoz, Maria Jose and Dogan, Fulya and Kubal, Joseph and Trask, Stephen E. and Bloom, Ira D. and Vaughey, John T. and Key, Baris},
abstractNote = {The chemical interaction of the highly reactive lithiated Si anode with other cell components, such as binders and electrolytes, is one of the most vital issues in batteries using Si electrodes. In this work, crystalline lithium silicide (LS) with Li7Si3 composition is synthesized to study the direct chemical reactions between the lithiated Si anodes and two typical binders, polyvinylidenefluoride (PVDF) and lithiated polyacrylic acid (LiPAA). The solid-state nuclear magnetic resonance (NMR) and Raman characterization experiments show that LiPAA binder is chemically stable against LS. On the contrary, PVDF binder reacts more readily with the LS, resulting in critical loss of Li from the bulk. 13C NMR shows the C-H bonds and C-C PVDF backbone were affected, whereas 19F MAS NMR shows the C-F bonds are relatively more stable. No LiF is detected, however HF release is confirmed by gas chromatography/mass spectrometry. The characterization results are consistent with electrochemical tests, which show the Si electrode using LiPAA as the binder has a much higher cyclability than when compared with PVDF. This work demonstrates the using of LS as an effective approach to evaluate and investigate the reactions between lithiated Si and different cell components, in order to stabilize Si anodes.},
doi = {10.1149/2.0241912jes},
journal = {Journal of the Electrochemical Society},
number = 12,
volume = 166,
place = {United States},
year = {2019},
month = {7}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1149/2.0241912jes

Save / Share:

Works referenced in this record:

Nano- and bulk-silicon-based insertion anodes for lithium-ion secondary cells
journal, January 2007


Electrochemical lithiation of tin and tin-based intermetallics and composites
journal, September 1999