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Title: Conformal Pressure and Fast-Charging Li-Ion Batteries

Journal Article · · Journal of the Electrochemical Society
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3]; ORCiD logo [4]; ORCiD logo [4];  [4]; ORCiD logo [5];  [3];  [6];  [3];  [3];  [7];  [7];  [7];  [3]; ORCiD logo [8]
  1. SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Synchrotron Radiation Lightsource (SSRL); Brookhaven National Lab. (BNL), Upton, NY (United States). Computational Science Initiative
  2. SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Synchrotron Radiation Lightsource (SSRL); Univ. Paderborn (Germany)
  3. SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Synchrotron Radiation Lightsource (SSRL)
  4. Argonne National Lab. (ANL), Argonne, IL (United States). Chemical Sciences and Engineering Division
  5. SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Synchrotron Radiation Lightsource (SSRL); Stanford Univ., CA (United States)
  6. Stanford Univ., CA (United States)
  7. Robert Bosch LLC, Sunnyvale, CA (United States)
  8. SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Synchrotron Radiation Lightsource (SSRL); Univ. of Colorado, Boulder, CO (United States)

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 homogeneous 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.

Research Organization:
SLAC National Accelerator Lab., Menlo Park, CA (United States); Brookhaven National Lab. (BNL), Upton, NY (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE); National Science Foundation (NSF); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Transportation Office. Vehicle Technologies Office
Grant/Contract Number:
AC02-76SF00515; AC02-06CH11357; ECCS-2026822; SC0012704
OSTI ID:
1866574
Alternate ID(s):
OSTI ID: 1863095; OSTI ID: 1882939
Report Number(s):
BNL-222916-2022-JAAM; TRN: US2306066
Journal Information:
Journal of the Electrochemical Society, Vol. 169, Issue 4; ISSN 0013-4651
Publisher:
IOP PublishingCopyright Statement
Country of Publication:
United States
Language:
English

References (40)

A Review of Existing and Emerging Methods for Lithium Detection and Characterization in Li‐Ion and Li‐Metal Batteries journal March 2021
Combined cycling and calendar capacity fade modeling of a Nickel-Manganese-Cobalt Oxide Cell with real-life profile validation journal August 2017
The Effects of Non-Uniform Mechanical Compression of Lithium-Ion Cells on Local Current Densities and Lithium Plating journal November 2021
Temperature dependent ageing mechanisms in Lithium-ion batteries – A Post-Mortem study journal September 2014
How Does External Pressure Shape Li Dendrites in Li Metal Batteries? journal January 2021
Quantification of heterogeneous, irreversible lithium plating in extreme fast charging of lithium-ion batteries journal January 2021
How Do Reactions at the Anode/Electrolyte Interface Determine the Cathode Performance in Lithium-Ion Batteries? journal January 2013
Enabling fast charging – A battery technology gap assessment journal November 2017
Heterogeneous damage in Li-ion batteries: Experimental analysis and theoretical modeling journal August 2019
An Unavoidable Challenge for Ni-Rich Positive Electrode Materials for Lithium-Ion Batteries journal August 2019
Stress evolution and capacity fade in constrained lithium-ion pouch cells journal January 2014
Effects of external pressure on the performance and ageing of single-layer lithium-ion pouch cells journal May 2018
Revealing causes of macroscale heterogeneity in lithium ion pouch cells via synchrotron X-ray diffraction journal September 2021
Heterogeneous Behavior of Lithium Plating during Extreme Fast Charging journal July 2020
Changes of Degradation Mechanisms of LiFePO4/Graphite Batteries Cycled at Different Ambient Temperatures journal May 2017
Nonlinear aging of cylindrical lithium-ion cells linked to heterogeneous compression journal February 2016
Study of the influence of mechanical pressure on the performance and aging of Lithium-ion battery cells journal November 2019
Fast charge implications: Pack and cell analysis and comparison journal March 2018
In situ X-ray spatial profiling reveals uneven compression of electrode assemblies and steep lateral gradients in lithium-ion coin cells journal January 2020
Quantitative and time-resolved detection of lithium plating on graphite anodes in lithium ion batteries journal April 2018
Spatial dynamics of lithiation and lithium plating during high-rate operation of graphite electrodes journal January 2020
Effects of Mechanical Compression on the Aging and the Expansion Behavior of Si/C-Composite|NMC811 in Different Lithium-Ion Battery Cell Formats journal January 2019
Using In Situ High-Energy X-ray Diffraction to Quantify Electrode Behavior of Li-Ion Batteries from Extreme Fast Charging journal October 2021
Cathode-Electrolyte Interphase in Lithium Batteries Revealed by Cryogenic Electron Microscopy journal January 2021
Lithium Acetylide: A Spectroscopic Marker for Lithium Deposition During Fast Charging of Li-Ion Cells journal December 2018
High-Throughput in Situ Pressure Analysis of Lithium-Ion Batteries journal July 2017
External pressure: An overlooked metric in evaluating next-generation battery performance journal February 2022
Electrode scale and electrolyte transport effects on extreme fast charging of lithium-ion cells journal March 2020
Electrolytes and Interphases in Li-Ion Batteries and Beyond journal October 2014
Challenges and opportunities towards fast-charging battery materials journal June 2019
Synthesize battery degradation modes via a diagnostic and prognostic model journal December 2012
Exploring the Impact of Mechanical Pressure on the Performance of Anode-Free Lithium Metal Cells journal January 2019
Degradation diagnostics for lithium ion cells journal February 2017
The role of mechanically induced separator creep in lithium-ion battery capacity fade journal October 2011
Pressure-tailored lithium deposition and dissolution in lithium metal batteries journal October 2021
Comprehensive Aging Analysis of Volumetric Constrained Lithium-Ion Pouch Cells with High Concentration Silicon-Alloy Anodes journal October 2018
Understanding undesirable anode lithium plating issues in lithium-ion batteries journal January 2016
Noninvasive In Situ NMR Study of “Dead Lithium” Formation and Lithium Corrosion in Full-Cell Lithium Metal Batteries journal November 2020
Quantifying inactive lithium in lithium metal batteries journal August 2019
Extreme Fast Charge Challenges for Lithium-Ion Battery: Variability and Positive Electrode Issues journal January 2019