Elucidating the Redox Behavior during Atomic Layer Deposition on Lithium-Ion Battery Cathode Materials
Journal Article
·
· Chemistry of Materials
- Argonne National Lab. (ANL), Lemont, IL (United States); Martinrea International, Auburn Hills, MI (United States)
- Argonne National Lab. (ANL), Lemont, IL (United States)
Atomic layer deposition (ALD) has emerged as a promising technology for applying ultrathin protective coatings on lithium-ion battery (LIB) cathode surfaces to improve their cycling stability. While there have been numerous reports evaluating the electrochemical performance of these surface-modified cathode materials, the chemical changes induced on the surface of the cathode materials upon ALD coating are not fully studied. This paper describes a systematic investigation to understand the interfacial changes of 12 different cathode materials upon coating with aluminum oxide (Al2O3) using trimethyl aluminum (TMA) and H2O, and aluminum fluoride (AlF3) using TMA and hydrogen fluoride pyridine (HFPy). Here, the surface composition of these cathode materials, which range from simple transition metal oxides (e.g. NiO and MnO) to complex multi-element cathode materials (e.g. LiNixMn1-x-yCoyO2, NMC), was studied via X-ray photoelectron spectroscopy (XPS). The XPS measurements reveal that the transition metals in the cathode materials undergo selective oxidation/reduction depending upon the nature of the precursor, the coating, and the cathode material. The ability to chemically modify the surface of cathode materials via vapor-phase precursor adsorption will open new avenues to systematically control the interface of the cathode materials in LIBs that are not possible by conventional coating methods.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Transportation Office. Vehicle Technologies Office
- Grant/Contract Number:
- AC02-06CH11357
- OSTI ID:
- 1877916
- Journal Information:
- Chemistry of Materials, Journal Name: Chemistry of Materials Journal Issue: 20 Vol. 33; ISSN 0897-4756
- Publisher:
- American Chemical Society (ACS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Removal of Surface Carbonate from Lithium-Ion Battery Cathode Materials via Vapor-Phase Fluorination
High-Rate Spinel LiMn2O4 (LMO) Following Carbonate Removal and Formation of Li-Rich Interface by ALD Treatment
Mechanisms of alumina growth via atomic layer deposition on nickel oxide and metallic nickel surfaces
Journal Article
·
Thu Aug 04 20:00:00 EDT 2022
· ACS Applied Energy Materials
·
OSTI ID:1910153
High-Rate Spinel LiMn2O4 (LMO) Following Carbonate Removal and Formation of Li-Rich Interface by ALD Treatment
Journal Article
·
Thu Sep 05 20:00:00 EDT 2019
· Journal of Physical Chemistry. C
·
OSTI ID:1606541
Mechanisms of alumina growth via atomic layer deposition on nickel oxide and metallic nickel surfaces
Journal Article
·
Wed Oct 23 20:00:00 EDT 2019
· Physical Chemistry Chemical Physics. PCCP
·
OSTI ID:1803738