Stabilized Nickel-Rich-Layered Oxide Electrodes for High-Performance Lithium-Ion Batteries

Zahra Ahaliabadeh, Ville Miikkulainen, Miia Mäntymäki, Mattia Colalongo, Seyedabolfazl Mousavihashemi, Lide Yao, Hua Jiang, Jouko Lahtinen, Timo Kankaanpää, Tanja Kallio*

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

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Abstract

Next-generation Li-ion batteries are expected to exhibit superior energy and power density, along with extended cycle life. Ni-rich high-capacity layered nickel manganese cobalt oxide electrode materials (NMC) hold promise in achieving these objectives, despite facing challenges such as capacity fade due to various degradation modes. Crack formation within NMC-based cathode secondary particles, leading to parasitic reactions and the formation of inactive crystal structures, is a critical degradation mechanism. Mechanical and chemical degradation further deteriorate capacity and lifetime. To mitigate these issues, an artificial cathode electrolyte interphase can be applied to the active material before battery cycling. While atomic layer deposition (ALD) has been extensively explored for active material coatings, molecular layer deposition (MLD) offers a complementary approach. When combined with ALD, MLD enables the deposition of flexible hybrid coatings that can accommodate electrode material volume changes during battery operation. This study focuses on depositing (Formula presented.) -titanium terephthalate thin films on a (Formula presented.) electrode via ALD-MLD. The electrochemical evaluation demonstrates favorable lithium-ion kinetics and reduced electrolyte decomposition. Overall, the films deposited through ALD-MLD exhibit promising features as flexible and protective coatings for high-energy lithium-ion battery electrodes, offering potential contributions to the enhancement of advanced battery technologies and supporting the growth of the EV and stationary battery industries.

Original languageEnglish
Article numbere12741
Number of pages14
JournalEnergy and Environmental Materials
Volume7
Issue number6
Early online date13 May 2024
DOIs
Publication statusPublished - Nov 2024
MoE publication typeA1 Journal article-refereed

Keywords

  • degradation mechanisms
  • electrolyte decomposition
  • hybrid coatings
  • lithium-ion battery
  • lithium-ion kinetics
  • molecular layer deposition
  • NMC811

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