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Title: Location-Dependent Cobalt Deposition in Smartphone Cells upon Long-Term Fast-Charging Visualized by Synchrotron X-ray Fluorescence

Journal Article · · Chemistry of Materials
ORCiD logo [1];  [2];  [3];  [3]; ORCiD logo [4];  [3];  [5];  [3];  [3];  [3]; ORCiD logo [6]; ORCiD logo [7]; ORCiD logo [3]
  1. Robert Bosch LLC, Sunnyvale, CA (United States); Karlsruhe Inst. of Technology (KIT) (Germany)
  2. Robert Bosch LLC, Sunnyvale, CA (United States); Univ. of Strasbourg (France)
  3. Robert Bosch LLC, Sunnyvale, CA (United States)
  4. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  5. Robert Bosch LLC, Sunnyvale, CA (United States); Aalen Univ. (Germany)
  6. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States)
  7. Dalhousie Univ., Halifax, NS (Canada)

In this work, we investigate the transition-metal dissolution of the layered cathode material LiCoO2 upon repeated fast-charging of three smartphone batteries from different manufacturers using synchrotron micro X-ray fluorescence (μ-XRF). Using this spatially resolved technique, dissolution of Co and subsequent location-dependent deposition on the anode are observed. μ-XRF mapping of selected parts of the anode electrode sheets, such as electrode folds and edges of the jelly roll, reveals the difference in the way Co is deposited on specific regions of the anode electrode. While some folds show no depositions, edges of the anode show gradually accumulating Co depositions. Furthermore, careful quantification of the dissolved Co reveals that the capacity loss scales with the amount of deposited Co on the anode, that is, total Co loss from within the cathode. Soft X-ray absorption spectroscopy of the Co depositions on the anode shows that Co is mainly deposited in a reduced 2+ state. While optimization of the fast-charging protocol mitigates Li plating on the anode, no significant difference in the amount of deposited Co can be observed between an optimized and a nonoptimized fast-charging algorithm.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-05CH11231; AC02-76SF00515
OSTI ID:
1826924
Journal Information:
Chemistry of Materials, Journal Name: Chemistry of Materials Journal Issue: 16 Vol. 33; ISSN 0897-4756
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

References (43)

A Novel Bifunctional Self‐Stabilized Strategy Enabling 4.6 V LiCoO 2 with Excellent Long‐Term Cyclability and High‐Rate Capability journal April 2019
A Study of Model‐Based Protective Fast‐Charging and Associated Degradation in Commercial Smartphone Cells: Insights on Cathode Degradation as a Result of Lithium Depositions on the Anode journal February 2021
Cobalt dissolution in LiCoO2-based non-aqueous rechargeable batteries journal January 1996
Influence of manganese(II), cobalt(II), and nickel(II) additives in electrolyte on performance of graphite anode for lithium-ion batteries journal February 2002
Mechanisms of manganese spinels dissolution and capacity fade at high temperature journal July 2001
Comparison of the chemical stability of the high energy density cathodes of lithium-ion batteries journal November 2001
Significant improvement of high voltage cycling behavior AlF3-coated LiCoO2 cathode journal May 2006
Mixed lithium ion and electron conducting LiAlPO 3.93 F 1.07 -coated LiCoO 2 cathode with improved electrochemical performance journal October 2017
High voltage stability of LiCoO2 particles with a nano-scale Lipon coating journal July 2011
Influence of local lithium metal deposition in 3D microstructures on local and global behavior of Lithium-ion batteries journal May 2016
Nonlinear aging of cylindrical lithium-ion cells linked to heterogeneous compression journal February 2016
Lithium-ion battery fast charging: A review journal August 2019
Review on electrode–electrolyte solution interactions, related to cathode materials for Li-ion batteries journal March 2007
AlF3-coated LiCoO2 and Li[Ni1/3Co1/3Mn1/3]O2 blend composite cathode for lithium ion batteries journal August 2011
Influence of surface modification of LiCoO2 by organic compounds on electrochemical and thermal properties of Li/LiCoO2 rechargeable cells journal March 2011
Superior electrochemical performance of LiCoO2 electrodes enabled by conductive Al2O3-doped ZnO coating via magnetron sputtering journal December 2015
Unraveling transition metal dissolution of Li1.04Ni1/3Co1/3Mn1/3O2 (NCM 111) in lithium ion full cells by using the total reflection X-ray fluorescence technique journal October 2016
Enabling fast charging – A battery technology gap assessment journal November 2017
Li plating as unwanted side reaction in commercial Li-ion cells – A review journal April 2018
Fast charging optimization for lithium-ion batteries based on dynamic programming algorithm and electrochemical-thermal-capacity fade coupled model journal October 2019
A multiplatform code for the analysis of energy-dispersive X-ray fluorescence spectra journal January 2007
Surface and in-depth characterization of lithium-ion battery cathodes at different cycle states using confocal micro-X-ray fluorescence-X-ray absorption near edge structure analysis journal July 2013
Development of a method for direct elemental analysis of lithium ion battery degradation products by means of total reflection X-ray fluorescence journal October 2015
Total reflection X-ray fluorescence in the field of lithium ion batteries – Elemental detection in Lithium containing electrolytes using nanoliter droplets journal November 2018
Correlation between Chemical and Morphological Heterogeneities in LiNi 0.5 Mn 1.5 O 4 Spinel Composite Electrodes for Lithium-Ion Batteries Determined by Micro-X-ray Fluorescence Analysis journal March 2015
Stabilizing LiCoO 2 /Graphite at High Voltages with an Electrolyte Additive journal April 2019
Understanding Transition-Metal Dissolution Behavior in LiNi 0.5 Mn 1.5 O 4 High-Voltage Spinel for Lithium Ion Batteries journal July 2013
Atomic Layer Deposition and in Situ Characterization of Ultraclean Lithium Oxide and Lithium Hydroxide journal November 2014
NIH Image to ImageJ: 25 years of image analysis journal June 2012
Transition metal dissolution and deposition in Li-ion batteries investigated by operando X-ray absorption spectroscopy journal January 2016
Dissolution, migration, and deposition of transition metal ions in Li-ion batteries exemplified by Mn-based cathodes – a critical review journal January 2018
Degradation and stabilization of lithium cobalt oxide in aqueous electrolytes journal January 2016
The MicroAnalysis Toolkit: X-ray Fluorescence Image Processing Software conference January 2011
The influence of surface inhomogeneity on the overcharge and lithium plating of graphite electrodes journal December 2019
Optimal charging strategies in lithium-ion battery conference June 2011
Two-Dimensional Modeling of Lithium Deposition during Cell Charging journal January 2009
Lithium Plating Behavior in Lithium-Ion Cells conference January 2010
Review—An Unpredictable Hazard in Lithium-ion Batteries from Transition Metal Ions: Dissolution from Cathodes, Deposition on Anodes and Elimination Strategies journal April 2020
Identification of Lithium Plating in Lithium-Ion Batteries by Electrical and Optical Methods journal May 2020
The Development and Future of Lithium Ion Batteries journal December 2016
Quantifying Changes to the Electrolyte and Negative Electrode in Aged NMC532/Graphite Lithium-Ion Cells journal January 2018
Nickel, Manganese, and Cobalt Dissolution from Ni-Rich NMC and Their Effects on NMC622-Graphite Cells journal January 2019
Post-Mortem Analysis of Inhomogeneous Induced Pressure on Commercial Lithium-Ion Pouch Cells and Their Effects journal November 2019