Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Oxygen evolution from olivine Mn1–xMxPO4 (M=Fe,Ni,Al,Mg) delithiated cathode materials

Journal Article · · Physical Review B
 [1];  [1]
  1. Northwestern Univ., Evanston, IL (United States)
Olivine LiMnPO4 is a promising cathode material for Li-ion batteries. One drawback of this material is the propensity of its delithiated phase, MnPO4, to evolve oxygen gas above approximately 200 °C. During thermal runaway of cells, this oxygen gas can burn the electrolyte and other cell components and thereby jeopardize safety. Partial substitution of Mn with M = Fe, Ni, Al, or Mg has been used to improve the lithium intercalation kinetics of LixMnPO4; however, the effect of these substitutions on oxygen evolution is not fully documented. In this paper, we calculate phase diagrams and oxygen evolution diagrams for these Mn1–xMxPO4 delithiated cathode materials. To generate the phase diagrams, we use subregular solid-solution models and fit the energetic parameters of these models to density functional theory calculations of special quasirandom structures. The resulting thermodynamic models describe the effect of mixing on the initial temperature of oxygen evolution and on the cumulative amount of oxygen evolution at elevated temperatures. We find that addition of Fe increases the initial temperature and decreases the cumulative amount of oxygen evolution. Mn0.5Fe0.5PO4 exhibits an initial temperature 50 °C higher than MnPO4 and releases 70% less oxygen gas at 300 °C. Al is insoluble in MnPO4, so addition of Al has no affect on the initial temperature. However, Al addition does slightly decrease the amount of oxygen evolution due to an inactive AlPO4 component. Mg and Ni both decrease the initial temperature of oxygen evolution, and therefore may worsen the safety of MnPO4.
Research Organization:
Energy Frontier Research Centers (EFRC) (United States). Center for Electrical Energy Storage (CEES); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-05CH11231; AC02-06CH11357
OSTI ID:
1388301
Alternate ID(s):
OSTI ID: 1338100
Journal Information:
Physical Review B, Journal Name: Physical Review B Journal Issue: 2 Vol. 95; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (50)

Towards a practical rechargeable 5 V Li ion battery journal January 2005
Materials Design and Discovery with High-Throughput Density Functional Theory: The Open Quantum Materials Database (OQMD) journal September 2013
Efficiency of ab-initio total energy calculations for metals and semiconductors using a plane-wave basis set journal July 1996
Thermo-Calc & DICTRA, computational tools for materials science journal June 2002
Thermal runaway potential of LiCoO2 and Li(Ni1/3Co1/3Mn1/3)O2 batteries determined with adiabatic calorimetry methodology journal December 2012
Efficient stochastic generation of special quasirandom structures journal September 2013
Thermal stabilities of delithiated olivine MPO4 (M=Fe, Mn) cathodes investigated using first principles calculations journal March 2010
Thermal behavior of delithiated Li(Ni0.8Co0.15Al0.05)O2 and Li1.1(Ni1/3Co1/3Mn1/3)0.9O2 powders journal December 2007
Thermal instability of Olivine-type LiMnPO4 cathodes journal February 2010
Safe and fast-charging Li-ion battery with long shelf life for power applications journal April 2011
An improved high-power battery with increased thermal operating range: C–LiFePO4//C–Li4Ti5O12 journal October 2012
Transition-Metal Mixing and Redox Potentials in Li x (M 1– y M′ y )PO 4 (M, M′ = Mn, Fe, Ni) Olivine Materials from First-Principles Calculations journal March 2016
Li−Fe−P−O 2 Phase Diagram from First Principles Calculations journal February 2008
Challenges for Rechargeable Li Batteries journal February 2010
New Iron(III) Phosphate Phases:  Crystal Structure and Electrochemical and Magnetic Properties journal November 2002
Understanding the Shifts in the Redox Potentials of Olivine LiM 1− y M y PO 4 (M = Fe, Mn, Co, and Mg) Solid Solution Cathodes journal August 2010
The existence of a temperature-driven solid solution in LixFePO4 for 0 ≤ x ≤ 1 journal February 2005
The Open Quantum Materials Database (OQMD): assessing the accuracy of DFT formation energies journal December 2015
Thermal stability of Fe–Mn binary olivine cathodes for Li rechargeable batteries journal January 2012
Structure, defects and thermal stability of delithiated olivine phosphates journal January 2012
LiMnPO4 – A next generation cathode material for lithium-ion batteries journal January 2013
Commentary: The Materials Project: A materials genome approach to accelerating materials innovation journal July 2013
Theoretical prediction of the 5 V rechargeable Li ion battery using Li 2 CoMn 3 O 8 as a cathode journal August 2015
Band theory and Mott insulators: Hubbard U instead of Stoner I journal July 1991
Ab initiomolecular dynamics for liquid metals journal January 1993
Density-functional theory and NiO photoemission spectra journal December 1993
Ab initio molecular-dynamics simulation of the liquid-metal–amorphous-semiconductor transition in germanium journal May 1994
Projector augmented-wave method journal December 1994
Density-functional theory and strong interactions: Orbital ordering in Mott-Hubbard insulators journal August 1995
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set journal October 1996
Electron-energy-loss spectra and the structural stability of nickel oxide: An LSDA+U study journal January 1998
Cation and vacancy ordering in Li x CoO 2 journal January 1998
From ultrasoft pseudopotentials to the projector augmented-wave method journal January 1999
Oxidation energies of transition metal oxides within the GGA + U framework journal May 2006
Formation enthalpies by mixing GGA and GGA + U calculations journal July 2011
Approaching chemical accuracy with density functional calculations: Diatomic energy corrections journal February 2013
Special quasirandom structures journal July 1990
Generalized Gradient Approximation Made Simple journal October 1996
First-Principles Prediction of Vacancy Order-Disorder and Intercalation Battery Voltages in Li x CoO 2 journal July 1998
Thermal Behavior of Delithiated Li 1−x MnPO 4 (0 ≤  x  <1) Structure for Lithium-Ion Batteries journal July 2013
Refinement of the Crystal Structure of the Low-quartz Modification of Ferric Phosphate journal July 1975
Layered-to-Spinel Phase Transition in Li[sub x]MnO[sub 2] journal January 2001
Crystal Chemistry of the Olivine-Type Li(Mn[sub y]Fe[sub 1−y])PO[sub 4] and (Mn[sub y]Fe[sub 1−y])PO[sub 4] as Possible 4 V Cathode Materials for Lithium Batteries journal January 2001
Phase Diagram of Li[sub x](Mn[sub y]Fe[sub 1−y])PO[sub 4] (0≤x, y≤1) journal January 2001
LiMnPO[sub 4] as the Cathode for Lithium Batteries journal January 2002
Prediction of Li Intercalation and Battery Voltages in Layered vs. Cubic Li[sub x]CoO[sub 2] journal January 1998
Phase Stability Study of Li[sub 1−x]MnPO[sub 4] (0≤x≤1) Cathode for Li Rechargeable Battery journal January 2009
A Critical Review of the Li Insertion Mechanisms in LiFePO 4 Electrodes journal January 2013
Lithium-Ion Cathode/Coating Pairs for Transition Metal Containment journal January 2016
Toward Computational Materials Design: The Impact of Density Functional Theory on Materials Research journal September 2006

Cited By (1)

Electrochemically Stable Coating Materials for Li, Na, and Mg Metal Anodes in Durable High Energy Batteries journal January 2017

Similar Records

What Happens to LiMnPO4 upon Chemical Delithiation?
Journal Article · Sun Apr 10 20:00:00 EDT 2016 · Inorganic Chemistry · OSTI ID:1371342

Solid Solution Phases in the Olivine-Type LiMnPO4/MnPO4 System
Journal Article · Tue Apr 07 00:00:00 EDT 2009 · Electrochemical Society · OSTI ID:984313

Electrochemical Performances of LiMnPO4 Synthesized from Non-Stoichiometric Li/Mn Ratio
Journal Article · Sun Sep 11 20:00:00 EDT 2011 · Physical Chemistry Chemical Physics. PCCP (Print) · OSTI ID:1026612