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Building interface bonding and shield for stable Li-rich Mn-based oxide cathode

Journal Article · · Energy Storage Materials
 [1];  [1];  [1];  [1];  [2];  [1];  [1];  [1];  [1];  [3];  [2];  [4];  [1]
  1. Central South University, Changsha (China)
  2. Argonne National Laboratory (ANL), Argonne, IL (United States)
  3. Manchester Metropolitan University (United Kingdom)
  4. Argonne National Laboratory (ANL), Argonne, IL (United States); Stanford University, CA (United States)

Implementation of Li-rich Mn-based oxide cathode with high-energy-density has been restrained by capacity/voltage degradation that results from irreversible lattice oxygen loss and structure rearrangements. To resolve these challenges, in this work, Li1.2Mn0.54Ni0.13Co0.13O2 encapsulated by amorphous CoxB (CB-LRM) is rationally designed via autocatalytic plating for highly reversible cationic/anionic hybrid cathode material. Band coherency is ingeniously evoked by interface-reconstruction between bulk structure and amorphous coating layer, which lower the energy of O $2p$ states. Furthermore, this is associated with strengthened orbital hybridization of O $2p$-Mn $3d$ and increased formation energy of oxygen vacancy, which mitigates the lattice oxygen loss considerably. Additionally, interface shielding effects that protect electrode against electrolyte corrosion and the reduction of surface oxygen are also present with fully coverage of amorphous CoxB coating layer. As a result, the as-designed CBLRM cathode exhibits excellent cycle stability after 100 loops with only 0.154% per cycle capacity fade and improved voltage degradation. Given this, this work provides a potential avenue for rational design of lattice oxygen-based electrode materials with high-energy-density.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Office of Sustainable Transportation. Vehicle Technologies Office (VTO); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF); National Natural Science Foundation of China (NSFC)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
2217019
Journal Information:
Energy Storage Materials, Journal Name: Energy Storage Materials Vol. 52; ISSN 2405-8297
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (23)

Manipulating the Electronic Structure of Li-Rich Manganese-Based Oxide Using Polyanions: Towards Better Electrochemical Performance journal June 2014
Pseudo‐Bonding and Electric‐Field Harmony for Li‐Rich Mn‐Based Oxide Cathode journal September 2020
Carbon Quantum Dots and Their Derivative 3D Porous Carbon Frameworks for Sodium-Ion Batteries with Ultralong Cycle Life journal October 2015
Amorphous Cobalt Boride (Co 2 B) as a Highly Efficient Nonprecious Catalyst for Electrochemical Water Splitting: Oxygen and Hydrogen Evolution journal January 2016
Co–B Nanoflakes as Multifunctional Bridges in ZnCo 2 O 4 Micro‐/Nanospheres for Superior Lithium Storage with Boosted Kinetics and Stability journal February 2019
In‐Depth Analysis of the Degradation Mechanisms of High‐Nickel, Low/No‐Cobalt Layered Oxide Cathodes for Lithium‐Ion Batteries journal June 2021
Stress accumulation in Ni-rich layered oxide cathodes: Origin, impact, and resolution journal February 2022
Recent breakthroughs and perspectives of high-energy layered oxide cathode materials for lithium ion batteries journal March 2021
Fundamental and solutions of microcrack in Ni-rich layered oxide cathode materials of lithium-ion batteries journal May 2021
Interphase Engineering by Electrolyte Additives for Lithium-Rich Layered Oxides: Advances and Perspectives journal June 2021
Demystifying the Lattice Oxygen Redox in Layered Oxide Cathode Materials of Lithium-Ion Batteries journal April 2021
Understanding Co roles towards developing Co-free Ni-rich cathodes for rechargeable batteries journal February 2021
The role of O2 in O-redox cathodes for Li-ion batteries journal March 2021
Reactive boride infusion stabilizes Ni-rich cathodes for lithium-ion batteries journal March 2021
Non-topotactic reactions enable high rate capability in Li-rich cathode materials journal May 2021
Persistent and partially mobile oxygen vacancies in Li-rich layered oxides journal June 2021
Releasing oxygen from the bulk journal June 2021
Unlocking anionic redox activity in O3-type sodium 3d layered oxides via Li substitution journal January 2021
Superstructure control of first-cycle voltage hysteresis in oxygen-redox cathodes journal December 2019
Tomographic reconstruction of oxygen orbitals in lithium-rich battery materials journal June 2021
Origin of structural degradation in Li-rich layered oxide cathode journal June 2022
Principle in developing novel fluorinated sulfone electrolyte for high voltage lithium-ion batteries journal January 2021
Reversible planar gliding and microcracking in a single-crystalline Ni-rich cathode journal December 2020

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