---
res:
bibo_abstract:
- "Abstract\r\n Batteries capable
of extreme fast-charging (XFC) are a necessity for the deployment of electric
vehicles. Material properties of electrodes and electrolytes along with cell parameters
such as stack pressure and temperature have coupled, synergistic, and sometimes
deleterious effects on fast-charging performance. We develop a new experimental
testbed that allows precise and conformal application of electrode stack pressure.
We focus on cell capacity degradation using single-layer pouch cells with graphite
anodes, LiNi0.5Mn0.3Co0.2O2 (NMC532) cathodes, and carbonate-based electrolyte.
In the tested range (10 – 125 psi), cells cycled at higher pressure show higher
capacity and less capacity fading. Additionally, Li plating decreases with increasing
pressure as observed with scanning electron microscopy (SEM) and optical imaging.
While the loss of Li inventory from Li plating is the largest contributor to capacity
fade, electrochemical and SEM examination of the NMC cathodes after XFC experiments
show increased secondary particle damage at lower pressure. We infer that the
better performance at higher pressure is due to more homogenous reactions of active
materials across the electrode and less polarization through the electrode thickness.
Our study emphasizes the importance of electrode stack pressure in XFC batteries
and highlights its subtle role in cell conditions.@eng"
bibo_authorlist:
- foaf_Person:
foaf_givenName: Chuntian
foaf_name: Cao, Chuntian
foaf_surname: Cao
- foaf_Person:
foaf_givenName: Hans-Georg
foaf_name: Steinrück, Hans-Georg
foaf_surname: Steinrück
foaf_workInfoHomepage: http://www.librecat.org/personId=84268
orcid: 0000-0001-6373-0877
- foaf_Person:
foaf_givenName: Partha P
foaf_name: Paul, Partha P
foaf_surname: Paul
- foaf_Person:
foaf_givenName: Alison R.
foaf_name: Dunlop, Alison R.
foaf_surname: Dunlop
- foaf_Person:
foaf_givenName: Stephen E.
foaf_name: Trask, Stephen E.
foaf_surname: Trask
- foaf_Person:
foaf_givenName: Andrew
foaf_name: Jansen, Andrew
foaf_surname: Jansen
- foaf_Person:
foaf_givenName: Robert M
foaf_name: Kasse, Robert M
foaf_surname: Kasse
- foaf_Person:
foaf_givenName: Vivek
foaf_name: Thampy, Vivek
foaf_surname: Thampy
- foaf_Person:
foaf_givenName: Maha
foaf_name: Yusuf, Maha
foaf_surname: Yusuf
- foaf_Person:
foaf_givenName: Johanna
foaf_name: Nelson Weker, Johanna
foaf_surname: Nelson Weker
- foaf_Person:
foaf_givenName: Badri
foaf_name: Shyam, Badri
foaf_surname: Shyam
- foaf_Person:
foaf_givenName: Ram
foaf_name: Subbaraman, Ram
foaf_surname: Subbaraman
- foaf_Person:
foaf_givenName: Kelly
foaf_name: Davis, Kelly
foaf_surname: Davis
- foaf_Person:
foaf_givenName: Christina M
foaf_name: Johnston, Christina M
foaf_surname: Johnston
- foaf_Person:
foaf_givenName: Christopher J
foaf_name: Takacs, Christopher J
foaf_surname: Takacs
- foaf_Person:
foaf_givenName: Michael
foaf_name: Toney, Michael
foaf_surname: Toney
bibo_doi: 10.1149/1945-7111/ac653f
bibo_volume: 169
dct_date: 2022^xs_gYear
dct_isPartOf:
- http://id.crossref.org/issn/0013-4651
- http://id.crossref.org/issn/1945-7111
dct_language: eng
dct_publisher: The Electrochemical Society@
dct_subject:
- Materials Chemistry
- Electrochemistry
- Surfaces
- Coatings and Films
- Condensed Matter Physics
- Renewable Energy
- Sustainability and the Environment
- Electronic
- Optical and Magnetic Materials
dct_title: Conformal Pressure and Fast-Charging Li-Ion Batteries@
...