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Title: Tuning charge–discharge induced unit cell breathing in layer-structured cathode materials for lithium-ion batteries

Journal Article · · Nature Communications
DOI:https://doi.org/10.1038/ncomms6381· OSTI ID:1169025
 [1];  [2];  [1];  [1];  [2];  [3];  [2];  [2];  [1]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States). Dept. of Chemistry
  2. Chinese Academy of Sciences (CAS), Beijing (China). Beijing National Lab. for Condensed Matter Physics (BNLCP-CAS)
  3. Dongguk Univ., Seoul (Korea, Republic of)

Through a systematic study of lithium molybdenum trioxide (Li2MoO3), a new ‘unit cell breathing’ mechanism is introduced based on both crystal and electronic structural changes of transition metal oxide cathode materials during charge–discharge: For widely used LiMO2 (M = Co, Ni, Mn), lattice parameters, a and b, contracts during charge. However, for Li2MoO3, such changes are in opposite directions. Metal–metal bonding is used to explain such ‘abnormal’ behaviour and a generalized hypothesis is developed. The expansion of M–M bond becomes the controlling factor for a(b) evolution during charge, in contrast to the shrinking M–O as controlling factor in ‘normal’ materials. The cation mixing caused by migration of Mo ions at higher oxidation state provides the benefits of reducing the c expansion range in early stage of charging and suppressing the structure collapse at high voltage charge. These results open a new strategy for designing and engineering layered cathode materials for high energy density lithium-ion batteries.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
SC00112704
OSTI ID:
1169025
Report Number(s):
BNL-107086-2014-JA; BNL-107086-2014-JAAM; R&D Project: EST431; KC0207010
Journal Information:
Nature Communications, Journal Name: Nature Communications; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 169 works
Citation information provided by
Web of Science

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Highly [010]-oriented, gradient Co-doped LiMnPO4 with enhanced cycling stability as cathode for Li-ion batteries journal January 2020
Development of P3-K 0.69 CrO 2 as an ultra-high-performance cathode material for K-ion batteries journal January 2018
Li–Ti Cation Mixing Enhanced Structural and Performance Stability of Li‐Rich Layered Oxide journal July 2019
Eliminating Transition Metal Migration and Anionic Redox to Understand Voltage Hysteresis of Lithium‐Rich Layered Oxides journal January 2020
Ultrafine Metallic Nickel Domains and Reduced Molybdenum States Improve Oxygen Evolution Reaction of NiFeMo Electrocatalysts journal March 2019
Review—Lithium-Excess Layered Cathodes for Lithium Rechargeable Batteries journal January 2015
Evolution of Electrochemical Cell Designs for In-Situ and Operando 3D Characterization journal November 2018
A synergistic effect between layer surface configurations and K ions of potassium vanadate nanowires for enhanced energy storage performance journal January 2016
Surface Doping to Enhance Structural Integrity and Performance of Li-Rich Layered Oxide journal October 2018
Reviving lithium cobalt oxide-based lithium secondary batteries-toward a higher energy density journal January 2018
Multi-scale computation methods: Their applications in lithium-ion battery research and development journal January 2016
Intragranular cracking as a critical barrier for high-voltage usage of layer-structured cathode for lithium-ion batteries journal January 2017
Application of Operando X-ray Diffractometry in Various Aspects of the Investigations of Lithium/Sodium-Ion Batteries journal November 2018
Tailoring grain boundary structures and chemistry of Ni-rich layered cathodes for enhanced cycle stability of lithium-ion batteries journal June 2018
Paving the Path toward Reliable Cathode Materials for Aluminum-Ion Batteries journal February 2019
Enhancing Interfacial Bonding between Anisotropically Oriented Grains Using a Glue-Nanofiller for Advanced Li-Ion Battery Cathode journal April 2016
Antisite occupation induced single anionic redox chemistry and structural stabilization of layered sodium chromium sulfide journal September 2017
Controllable Cathode–Electrolyte Interface of Li[Ni 0.8 Co 0.1 Mn 0.1 ]O 2 for Lithium Ion Batteries: A Review journal August 2019
High-voltage performance of concentration-gradient Li[Ni 0.6 Co 0.2 Mn 0.2 ]O 2 layered oxide cathode materials for lithium batteries journal January 2018
Surface/Interface Structure Degradation of Ni‐Rich Layered Oxide Cathodes toward Lithium‐Ion Batteries: Fundamental Mechanisms and Remedying Strategies journal December 2019
New Insights for the Abuse Tolerance Behavior of LiMn 2 O 4 under High Cut‐Off Potential Conditions journal September 2018
K-Ion Batteries Based on a P2-Type K 0.6 CoO 2 Cathode journal May 2017
Increase and discretization of the energy barrier for individual LiNi x Co y Mn y O 2 ( x + 2 y =1) particles with the growth of a Li 2 CO 3 surface film journal January 2019

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