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Title: In situ observation of thermal-driven degradation and safety concerns of lithiated graphite anode

Journal Article · · Nature Communications

Abstract Graphite, a robust host for reversible lithium storage, enabled the first commercially viable lithium-ion batteries. However, the thermal degradation pathway and the safety hazards of lithiated graphite remain elusive. Here, solid-electrolyte interphase (SEI) decomposition, lithium leaching, and gas release of the lithiated graphite anode during heating were examined by in situ synchrotron X-ray techniques and in situ mass spectroscopy. The source of flammable gas such as H 2 was identified and quantitively analyzed. Also, the existence of highly reactive residual lithium on the graphite surface was identified at high temperatures. Our results emphasized the critical role of the SEI in anode thermal stability and uncovered the potential safety hazards of the flammable gases and leached lithium. The anode thermal degradation mechanism revealed in the present work will stimulate more efforts in the rational design of anodes to enable safe energy storage.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1806587
Journal Information:
Nature Communications, Journal Name: Nature Communications Journal Issue: 1 Vol. 12; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United Kingdom
Language:
English

References (76)

Challenges and Strategies to Advance High‐Energy Nickel‐Rich Layered Lithium Transition Metal Oxide Cathodes for Harsh Operation journal September 2020
The Birth of the Lithium-Ion Battery journal February 2012
In‐situ structural characterizations of electrochemical intercalation of graphite compounds journal October 2019
Lithium-mediated electrochemical reduction of high pressure N2 to NH3 journal March 1994
Intercalation reactions and carbide formation in graphite-lithium system journal June 1996
Characterisation of the ambient and elevated temperature performance of a graphite electrode journal September 1999
Model-based thermal runaway prediction of lithium-ion batteries from kinetics analysis of cell components journal October 2018
Investigating the thermal runaway mechanisms of lithium-ion batteries based on thermal analysis database journal July 2019
Thermal stability of solid electrolyte interphase of lithium-ion batteries journal October 2018
Effects of solvents and salts on the thermal stability of LiC6 journal October 2004
Thermal runaway mechanism of lithium ion battery for electric vehicles: A review journal January 2018
Unlocking the self-supported thermal runaway of high-energy lithium-ion batteries journal August 2021
Flammability characteristics of the battery vent gas: A case of NCA and LFP lithium-ion batteries during external heating abuse journal August 2019
Thermodynamic stability of Li2C2 and LiC6 journal October 2013
Thermal Runaway of Lithium-Ion Batteries without Internal Short Circuit journal October 2018
Unraveling the Nanoscale Heterogeneity of Solid Electrolyte Interphase Using Tip-Enhanced Raman Spectroscopy journal August 2019
Generation and Evolution of the Solid Electrolyte Interphase of Lithium-Ion Batteries journal October 2019
The Thermal Stability of Lithium Solid Electrolytes with Metallic Lithium journal April 2020
Detection of Micro-Scale Li Dendrite via H2 Gas Capture for Early Safety Warning journal August 2020
DSC investigation of exothermic reactions occurring at elevated temperatures in lithium-ion anodes containing PVDF-based binders journal August 2004
Deciphering the multi-step degradation mechanisms of carbonate-based electrolyte in Li batteries journal March 2008
Surface chemistry and morphology of the solid electrolyte interphase on silicon nanowire lithium-ion battery anodes journal April 2009
Comparison of the structural and electrochemical properties of layered Li[NixCoyMnz]O2 (x = 1/3, 0.5, 0.6, 0.7, 0.8 and 0.85) cathode material for lithium-ion batteries journal July 2013
Investigation on gas generation of Li4Ti5O12/LiNi1/3Co1/3Mn1/3O2 cells at elevated temperature journal September 2013
Quantification and simulation of thermal decomposition reactions of Li-ion battery materials by simultaneous thermal analysis coupled with gas analysis journal September 2019
Thermal and chemical characterization of the solid-electrolyte interphase in Li-ion batteries using a novel separator sampling method journal November 2019
Explosion hazards from lithium-ion battery vent gas journal January 2020
Changes in the stage structure of Li-intercalated graphite electrode at elevated temperatures journal January 2021
Dynamic Structure and Chemistry of the Silicon Solid-Electrolyte Interphase Visualized by Cryogenic Electron Microscopy journal November 2019
Effect of temperature on graphite oxidation behavior journal February 2004
Experimental study on thermal runaway and vented gases of lithium-ion cells journal December 2020
Thermal reactions of lithiated graphite anode in LiPF6-based electrolyte journal December 2008
Voltage Dependent Solid Electrolyte Interphase Formation in Silicon Electrodes: Monitoring the Formation of Organic Decomposition Products journal December 2015
Thermal Decomposition of the Solid Electrolyte Interphase (SEI) on Silicon Electrodes for Lithium Ion Batteries journal March 2017
Quantitative Analysis of the Morphology of {101} and {001} Faceted Anatase TiO 2 Nanocrystals and Its Implication on Photocatalytic Activity journal June 2017
Decomposition Reactions of Anode Solid Electrolyte Interphase (SEI) Components with LiPF 6 journal October 2017
Evolution of the Solid–Electrolyte Interphase on Carbonaceous Anodes Visualized by Atomic-Resolution Cryogenic Electron Microscopy journal July 2019
Lithium-Ion Batteries and Beyond: Celebrating the 2019 Nobel Prize in Chemistry – A Virtual Issue journal October 2019
Structural Changes and Thermal Stability of Charged LiNi x Mn y Co z O 2 Cathode Materials Studied by Combined In Situ Time-Resolved XRD and Mass Spectroscopy journal December 2014
Solid Electrolyte Interphase in Li-Ion Batteries: Evolving Structures Measured In situ by Neutron Reflectometry journal May 2012
In Situ X-ray Study of the Solid Electrolyte Interphase (SEI) Formation on Graphene as a Model Li-ion Battery Anode journal August 2012
Probing the Thermal-Driven Structural and Chemical Degradation of Ni-Rich Layered Cathodes by Co/Mn Exchange journal November 2020
Syntheses and Characterization of Lithium Alkyl Mono- and Dicarbonates as Components of Surface Films in Li-Ion Batteries journal March 2006
Vacuum Thermal Degradation of Poly(ethylene oxide) journal February 2009
Polymer Nanocomposites with a Low Thermal Expansion Coefficient journal February 2008
High-energy cathode material for long-life and safe lithium batteries journal March 2009
Thermal runaway of Lithium-ion batteries employing LiN(SO2F)2-based concentrated electrolytes journal October 2020
Building ultraconformal protective layers on both secondary and primary particles of layered lithium transition metal oxide cathodes journal May 2019
Trace doping of multiple elements enables stable battery cycling of LiCoO2 at 4.6 V journal June 2019
Glassy Li metal anode for high-performance rechargeable Li batteries journal July 2020
Thermal-runaway experiments on consumer Li-ion batteries with metal-oxide and olivin-type cathodes journal January 2014
In situ analytical techniques for battery interface analysis journal January 2018
Intercalation chemistry of graphite: alkali metal ions and beyond journal January 2019
Challenges in the development of advanced Li-ion batteries: a review journal January 2011
Multi-scale study of thermal stability of lithiated graphite journal January 2011
The melting point of lithium: an orbital-free first-principles molecular dynamics study journal December 2013
Structure of liquid lithium journal January 2004
Robust high-fidelity DFT study of the lithium-graphite phase diagram journal December 2018
Materials for lithium-ion battery safety journal June 2018
Mechanism of Gas Generation in Lithium Ion Batteries by Overdischarge journal December 2015
Characterisation of Heat and Gas Emissions in Thermally Induced Battery Failure on Commercially Available 18650 Li-Ion Cells journal October 2017
Differential Scanning Calorimetry Study of the Reactivity of Carbon Anodes in Plastic Li-Ion Batteries journal January 1998
On the Thermal Behavior of Lithium Intercalated Graphites journal January 2011
Oxygen Release and Its Effect on the Cycling Stability of LiNi x Mn y Co z O 2 (NMC) Cathode Materials for Li-Ion Batteries journal January 2017
Mechanism of Gases Generation during Lithium-Ion Batteries Cycling journal January 2019
On-Line Electrochemical Mass Spectrometry Investigations on the Gassing Behavior of Li 4 Ti 5 O 12 Electrodes and Its Origins journal January 2014
Gas Evolution at Graphite Anodes Depending on Electrolyte Water Content and SEI Quality Studied by On-Line Electrochemical Mass Spectrometry journal January 2015
Solvent Oligomerization during SEI Formation on Model Systems for Li-Ion Battery Anodes journal January 2012
The Effect of CO 2 on Alkyl Carbonate Trans-Esterification during Formation of Graphite Electrodes in Li-Ion Batteries journal January 2017
Origin of H 2 Evolution in LIBs: H 2 O Reduction vs. Electrolyte Oxidation journal January 2016
Review—SEI: Past, Present and Future journal January 2017
Thermal Structural Behavior of Electrodes in Li-Ion Battery Studied In Operando journal January 2018
How Electrolytes Influence Battery Safety journal January 2012
Production of methane and ethylene from plastic in the environment journal August 2018
The Solid Electrolyte Interphase – The Most Important and the Least Understood Solid Electrolyte in Rechargeable Li Batteries journal December 2009
Safety Issues in Lithium Ion Batteries: Materials and Cell Design journal July 2019