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Title: Resolving Charge Distribution for Compositionally Heterogeneous Battery Cathode Materials

Journal Article · · Nano Letters

The isostructural nature of Li-layered cathodes allows for accommodating multiple transition metals (TMs). However, little is known about how the local TM stoichiometry influences the charging behavior of battery particles thus impacting battery performance. In this work, we develop heterogeneous compositional distributions in polycrystalline LiNi1–x–yMnxCoyO2 (NMC) particles to investigate the interplay between local stoichiometry and charge distribution. These NMC particles exhibit a broad, continuous distribution of local Ni/Mn/Co stoichiometry, which does not compromise the global layeredness. The local Mn and Ni concentrations in individual NMC particles are positively and negatively correlated with the electrochemically induced Ni oxidation, respectively, whereas the Co concentration does not impose a clear effect on the Ni oxidation. The resulting material delivers excellent reversible capacity, rate capability, and cycle life at high operating voltages. Engineering Ni/Mn/Co distribution in NMC particles may provide a path toward controlling the charge distribution and thus chemomechanical properties of polycrystalline battery particles.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); Virginia Polytechnic Institute and State University; National Science Foundation (NSF)
Grant/Contract Number:
AC02-76SF00515
OSTI ID:
1873407
Journal Information:
Nano Letters, Journal Name: Nano Letters Journal Issue: 3 Vol. 22; ISSN 1530-6984
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

References (40)

Layered Na-Ion Cathodes with Outstanding Performance Resulting from the Synergetic Effect of Mixed P- and O-Type Phases journal November 2015
Self-Induced Concentration Gradient in Nickel-Rich Cathodes by Sacrificial Polymeric Bead Clusters for High-Energy Lithium-Ion Batteries journal January 2017
High-Capacity Concentration Gradient Li[Ni 0.865 Co 0.120 Al 0.015 ]O 2 Cathode for Lithium-Ion Batteries journal March 2018
Quantification of Heterogeneous Degradation in Li‐Ion Batteries journal May 2019
Ti‐Gradient Doping to Stabilize Layered Surface Structure for High Performance High‐Ni Oxide Cathode of Li‐Ion Battery journal September 2019
Recent Progress and Perspective of Advanced High‐Energy Co‐Less Ni‐Rich Cathodes for Li‐Ion Batteries: Yesterday, Today, and Tomorrow journal September 2020
Probing Dopant Redistribution, Phase Propagation, and Local Chemical Changes in the Synthesis of Layered Oxide Battery Cathodes journal November 2020
A Layered P2- and O3-Type Composite as a High-Energy Cathode for Rechargeable Sodium-Ion Batteries journal April 2015
High‐Entropy Layered Oxide Cathodes for Sodium‐Ion Batteries journal January 2020
Structural classification and properties of the layered oxides journal January 1980
Chemomechanical interplay of layered cathode materials undergoing fast charging in lithium batteries journal November 2018
Electrochemical Characteristics of Layered Transition Metal Oxide Cathode Materials for Lithium Ion Batteries: Surface, Bulk Behavior, and Thermal Properties journal December 2017
Reaction Heterogeneity in LiNi 0.8 Co 0.15 Al 0.05 O 2 Induced by Surface Layer journal August 2017
Dopant Distribution in Co-Free High-Energy Layered Cathode Materials journal November 2019
Heterogeneous, Defect-Rich Battery Particles and Electrodes: Why Do They Matter, and How Can One Leverage Them? journal April 2021
Charge-Transfer-Induced Lattice Collapse in Ni-Rich NCM Cathode Materials during Delithiation journal October 2017
A New Coating Method for Alleviating Surface Degradation of LiNi 0.6 Co 0.2 Mn 0.2 O 2 Cathode Material: Nanoscale Surface Treatment of Primary Particles journal February 2015
Facile Fabrication of Ethoxy-Functional Polysiloxane Wrapped LiNi 0.6 Co 0.2 Mn 0.2 O 2 Cathode with Improved Cycling Performance for Rechargeable Li-Ion Battery journal July 2016
Targeted Surface Doping with Reversible Local Environment Improves Oxygen Stability at the Electrochemical Interfaces of Nickel-Rich Cathode Materials journal October 2019
Distinct Surface and Bulk Thermal Behaviors of LiNi 0.6 Mn 0.2 Co 0.2 O 2 Cathode Materials as a Function of State of Charge journal February 2020
Heterogeneous Reaction Activities and Statistical Characteristics of Particle Cracking in Battery Electrodes journal October 2021
An Ordered P2/P3 Composite Layered Oxide Cathode with Long Cycle Life in Sodium-Ion Batteries journal September 2019
In-Situ X-ray Absorption Spectroscopic Study on Variation of Electronic Transitions and Local Structure of LiNi 1/3 Co 1/3 Mn 1/3 O 2 Cathode Material during Electrochemical Cycling journal June 2005
Multiprincipal Component P2-Na 0.6 (Ti 0.2 Mn 0.2 Co 0.2 Ni 0.2 Ru 0.2 )O 2 as a High-Rate Cathode for Sodium-Ion Batteries journal December 2020
Electronic Structure of Cobalt Nanocrystals Suspended in Liquid journal July 2007
Intragranular cracking as a critical barrier for high-voltage usage of layer-structured cathode for lithium-ion batteries journal January 2017
Surface reconstruction and chemical evolution of stoichiometric layered cathode materials for lithium-ion batteries journal March 2014
Metal segregation in hierarchically structured cathode materials for high-energy lithium batteries journal January 2016
Propagation topography of redox phase transformations in heterogeneous layered oxide cathode materials journal July 2018
Charge distribution guided by grain crystallographic orientations in polycrystalline battery materials journal January 2020
Mutual modulation between surface chemistry and bulk microstructure within secondary particles of nickel-rich layered oxides journal September 2020
Trace doping of multiple elements enables stable battery cycling of LiCoO2 at 4.6 V journal June 2019
Profiling the nanoscale gradient in stoichiometric layered cathode particles for lithium-ion batteries journal January 2014
Elucidation of the surface characteristics and electrochemistry of high-performance LiNiO 2 journal January 2016
A review of Ni-based layered oxides for rechargeable Li-ion batteries journal January 2017
Empowering multicomponent cathode materials for sodium ion batteries by exploring three-dimensional compositional heterogeneities journal January 2018
The synthesis, characterization and electrochemical behavior of the layered LiNi0.4Mn0.4Co0.2O2 compound journal January 2004
Oxygen and transition metal involvement in the charge compensation mechanism of LiNi1/3Mn1/3Co1/3O2 cathodes journal January 2012
Resonant Soft X-Ray Emission Spectroscopy and X-Ray Absorption Spectroscopy on the Cathode Material LiNi[sub 0.65]Co[sub 0.25]Mn[sub 0.1]O[sub 2] journal January 2010
Structural and Electrochemical Investigation of Li(Ni[sub 0.4]Co[sub 0.15]Al[sub 0.05]Mn[sub 0.4])O[sub 2] Cathode Material journal January 2010