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Title: Hole Polaron Diffusion in the Final Discharge Product of Lithium–Sulfur Batteries

Journal Article · · Journal of Physical Chemistry. C

Poor electronic conductivity of bulk lithium sulfide (Li2S) is a critical challenge for the debilitating performance of the lithium–sulfur battery. In this study we focus on investigating the thermodynamic and kinetic properties of native defects in Li2S based on a first-principles approach. It is found that the hole polaron p+ can form in Li2S by removing a 3p electron from an S2– anion. The p+ diffusion barrier is only 90 meV, which is much lower than the Li vacancy (VLi) diffusion barrier. Hence p+ has the potential to serve as a charge carrier in the discharge product. Once the vacancy–polaron complex (VLi-––2p+) forms, the charge transport will be hindered due to the relatively higher diffusion barrier of the complex. Heteroatom dopants, which can decrease the p+ formation energy and increase VLi formation energy, are expected to be introduced to the discharge product to improve the electronic conductivity.

Research Organization:
Texas A & M Univ., College Station, TX (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Grant/Contract Number:
EE0006832
OSTI ID:
1430631
Alternate ID(s):
OSTI ID: 1430595
Journal Information:
Journal of Physical Chemistry. C, Vol. 121, Issue 32; ISSN 1932-7447
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 15 works
Citation information provided by
Web of Science

References (49)

Li–O2 and Li–S batteries with high energy storage journal January 2012
Lithium-Sulfur Batteries: Electrochemistry, Materials, and Prospects journal November 2013
Challenges and Prospects of Lithium–Sulfur Batteries journal June 2012
High-Capacity Micrometer-Sized Li2 S Particles as Cathode Materials for Advanced Rechargeable Lithium-Ion Batteries journal September 2012
First-principles study of electronic structure and ground-state properties of alkali-metal sulfides – Li2S, Na2S, K2S and Rb2S journal April 2007
First-principles Study on the Charge Transport Mechanism of Lithium Sulfide (Li 2 S) in Lithium-Sulfur Batteries journal March 2016
Mechanism and Kinetics of Li 2 S Precipitation in Lithium-Sulfur Batteries journal August 2015
Mesoscale Elucidation of Surface Passivation in the Li–Sulfur Battery Cathode journal February 2017
Low hole polaron migration barrier in lithium peroxide journal February 2012
Implications of the formation of small polarons in Li 2 O 2 for Li-air batteries journal January 2012
Lithium and oxygen vacancies and their role in Li 2 O 2 charge transport in Li–O 2 batteries journal January 2014
Unveiling the charge migration mechanism in Na 2 O 2 : implications for sodium–air batteries journal January 2015
Theoretical Evidence for Low Charging Overpotentials of Superoxide Discharge Products in Metal–Oxygen Batteries journal December 2015
Revealing Charge Transport Mechanisms in Li 2 S 2 for Li–Sulfur Batteries journal March 2017
Ab initiomolecular dynamics for liquid metals journal January 1993
Ab initio molecular-dynamics simulation of the liquid-metal–amorphous-semiconductor transition in germanium journal May 1994
Unified Approach for Molecular Dynamics and Density-Functional Theory journal November 1985
Projector augmented-wave method journal December 1994
Generalized Gradient Approximation Made Simple journal October 1996
Influence of the exchange screening parameter on the performance of screened hybrid functionals journal December 2006
Improved tangent estimate in the nudged elastic band method for finding minimum energy paths and saddle points journal December 2000
A climbing image nudged elastic band method for finding saddle points and minimum energy paths journal December 2000
First-principles calculations for defects and impurities: Applications to III-nitrides journal April 2004
Non-woven carbon paper as current collector for Li-ion/Li2S system: Understanding of the first charge mechanism journal October 2015
Ab initio study of the migration of small polarons in olivine Li x FePO 4 and their association with lithium ions and vacancies journal March 2006
Comparison of small polaron migration and phase separation in olivine LiMnPO 4 and LiFePO 4 using hybrid density functional theory journal February 2011
A grid-based Bader analysis algorithm without lattice bias journal January 2009
Improved grid-based algorithm for Bader charge allocation journal January 2007
Mapping polaronic states and lithiation gradients in individual V2O5 nanowires journal June 2016
Atoms, molecules, solids, and surfaces: Applications of the generalized gradient approximation for exchange and correlation journal September 1992
Intrinsic Conductivity in Magnesium–Oxygen Battery Discharge Products: MgO and MgO 2 journal March 2017
Charge transport in lithium peroxide: relevance for rechargeable metal–air batteries journal January 2013
A lithium–oxygen battery based on lithium superoxide journal January 2016
First-Principles Study of the Charge Transport Mechanisms in Lithium Superoxide journal February 2017
Improved Energy Capacity of Aprotic Li–O 2 Batteries by Forming Cl-Incorporated Li 2 O 2 as the Discharge Product journal June 2016
How Dopants Can Enhance Charge Transport in Li 2 O 2 journal January 2015
Zn vacancy as a polaronic hole trap in ZnO journal March 2017
Investigation of intrinsic defects in core-shell structured ZnO nanocrystals journal June 2012
Temperature dependence of the ESR spectrum of the zinc vacancy in ZnO journal May 1974
A lithium anode protection guided highly-stable lithium–sulfur battery journal January 2014
Li 3 N as a Cathode Additive for High-Energy-Density Lithium-Ion Batteries journal March 2016
Phosphorous Pentasulfide as a Novel Additive for High-Performance Lithium-Sulfur Batteries journal June 2012
Highly improved electrochemical performance of Li-S batteries with heavily nitrogen-doped three-dimensional porous graphene interlayers journal December 2016
Mesoporous carbon/sulfur composite with N-doping and tunable pore size for high-performance Li-S batteries journal November 2016
N-doped carbyne polysulfide as cathode material for lithium/sulfur batteries journal April 2017
Lithium-Sulfur Batteries: Fabrication of N-doped Graphene-Carbon Nanotube Hybrids from Prussian Blue for Lithium-Sulfur Batteries (Adv. Energy Mater. 8/2017) journal April 2017
Nitrogen and phosphorus codoped hierarchically porous carbon as an efficient sulfur host for Li-S batteries journal January 2017
A porous nitrogen and phosphorous dual doped graphene blocking layer for high performance Li–S batteries journal January 2015
Hydrothermal synthesis of porous phosphorus-doped carbon nanotubes and their use in the oxygen reduction reaction and lithium-sulfur batteries journal June 2016

Cited By (3)

An ab initio study for probing iodization reactions on metallic anode surfaces of Li–I 2 batteries journal January 2018
Sigma-Holes in Battery Materials Using Iso-Electrostatic Potential Surfaces journal January 2018
Revealing reaction mechanisms of nanoconfined Li 2 S: implications for lithium–sulfur batteries journal January 2018

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