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Title: Understanding of pre-lithiation of poly(acrylic acid) binder: Striking the balances between the cycling performance and slurry stability for silicon-graphite composite electrodes in Li-ion batteries

Abstract

Poly(acrylic acid) (PAA) is widely used as a polymer binder for high capacity silicon (Si) anodes in Li-ion batteries. When used, the carboxyl (-CO2H) groups of PAA can be partially lithiated (known as pre-lithiation treatment), which is believed to facilitates lamination process, especially for production on a large scale. However, such treatment impacts numerous physico-chemical properties of the PAA binder that affect the cycling performance of the electrode. Here we seek to quantify the pre-lithiation treatment effect on Li-ion cells containing Si-graphite composite electrodes. The electrochemical cycling results indicated that such pre-lithiation treatment of PAA can undermine the cycling performance, as more capacity loss was observed when pre-lithitated PAA binders were used. On the other hand, the same pre-lithiation practice is indeed beneficial for the lamination process, as it increases the viscosity of aqueous slurries at low shear rates (slows down sedimentation) and prompts the shear thinning (so that the slurries can be more easily mixed). Thus, there is an uneasy balance between the electrochemical performance that suffers from the pre-lithiation of PAA and the quality of slurry processing which benefits from the same practice. An alternative approach to slurry treatment would be desired to achieve better cycling performance withoutmore » undermining the stability of slurry suspensions.« less

Authors:
 [1];  [2]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1];  [1];  [1];  [1]; ORCiD logo [1];  [1]; ORCiD logo [1]
  1. Argonne National Lab. (ANL), Argonne, IL (United States)
  2. Argonne National Lab. (ANL), Argonne, IL (United States); Univ. of Tennessee, Knoxville, TN (United States)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1557431
Alternate Identifier(s):
OSTI ID: 1636573
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of Power Sources
Additional Journal Information:
Journal Volume: 416; Journal Issue: C; Journal ID: ISSN 0378-7753
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; PAA binder; lithium-ion; polymer; pre-lithiation; silicon; slurry stability

Citation Formats

Hu, Bin, Jiang, Sisi, Shkrob, Ilya A., Zhang, Jingjing, Trask, Stephen E., Polzin, Bryant J., Jansen, Andrew, Chen, Wei, Liao, Chen, Zhang, Zhengcheng, and Zhang, Lu. Understanding of pre-lithiation of poly(acrylic acid) binder: Striking the balances between the cycling performance and slurry stability for silicon-graphite composite electrodes in Li-ion batteries. United States: N. p., 2019. Web. doi:10.1016/j.jpowsour.2019.01.068.
Hu, Bin, Jiang, Sisi, Shkrob, Ilya A., Zhang, Jingjing, Trask, Stephen E., Polzin, Bryant J., Jansen, Andrew, Chen, Wei, Liao, Chen, Zhang, Zhengcheng, & Zhang, Lu. Understanding of pre-lithiation of poly(acrylic acid) binder: Striking the balances between the cycling performance and slurry stability for silicon-graphite composite electrodes in Li-ion batteries. United States. https://doi.org/10.1016/j.jpowsour.2019.01.068
Hu, Bin, Jiang, Sisi, Shkrob, Ilya A., Zhang, Jingjing, Trask, Stephen E., Polzin, Bryant J., Jansen, Andrew, Chen, Wei, Liao, Chen, Zhang, Zhengcheng, and Zhang, Lu. 2019. "Understanding of pre-lithiation of poly(acrylic acid) binder: Striking the balances between the cycling performance and slurry stability for silicon-graphite composite electrodes in Li-ion batteries". United States. https://doi.org/10.1016/j.jpowsour.2019.01.068. https://www.osti.gov/servlets/purl/1557431.
@article{osti_1557431,
title = {Understanding of pre-lithiation of poly(acrylic acid) binder: Striking the balances between the cycling performance and slurry stability for silicon-graphite composite electrodes in Li-ion batteries},
author = {Hu, Bin and Jiang, Sisi and Shkrob, Ilya A. and Zhang, Jingjing and Trask, Stephen E. and Polzin, Bryant J. and Jansen, Andrew and Chen, Wei and Liao, Chen and Zhang, Zhengcheng and Zhang, Lu},
abstractNote = {Poly(acrylic acid) (PAA) is widely used as a polymer binder for high capacity silicon (Si) anodes in Li-ion batteries. When used, the carboxyl (-CO2H) groups of PAA can be partially lithiated (known as pre-lithiation treatment), which is believed to facilitates lamination process, especially for production on a large scale. However, such treatment impacts numerous physico-chemical properties of the PAA binder that affect the cycling performance of the electrode. Here we seek to quantify the pre-lithiation treatment effect on Li-ion cells containing Si-graphite composite electrodes. The electrochemical cycling results indicated that such pre-lithiation treatment of PAA can undermine the cycling performance, as more capacity loss was observed when pre-lithitated PAA binders were used. On the other hand, the same pre-lithiation practice is indeed beneficial for the lamination process, as it increases the viscosity of aqueous slurries at low shear rates (slows down sedimentation) and prompts the shear thinning (so that the slurries can be more easily mixed). Thus, there is an uneasy balance between the electrochemical performance that suffers from the pre-lithiation of PAA and the quality of slurry processing which benefits from the same practice. An alternative approach to slurry treatment would be desired to achieve better cycling performance without undermining the stability of slurry suspensions.},
doi = {10.1016/j.jpowsour.2019.01.068},
url = {https://www.osti.gov/biblio/1557431}, journal = {Journal of Power Sources},
issn = {0378-7753},
number = C,
volume = 416,
place = {United States},
year = {Wed Feb 06 00:00:00 EST 2019},
month = {Wed Feb 06 00:00:00 EST 2019}
}

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Cited by: 36 works
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Works referencing / citing this record: