Microstructural Evolution Dynamics in Rapid Joule Heating Densification of High-Nickel Cathodes.

ABSTRACT: High-energy density materials are essential for the advancement of next-generation lithium-ion batteries, which power a wide range of applications from portable electronics to electric vehicles. Among them, high-Nickel (Ni) layered oxide cathodes have emerged as promising candidates due to their high capacity and cost-effectiveness. However, pores and excessive grain growth in high-Ni layered oxides compromise energy density and mechanical integrity, while oversized grains hinder lithium-ion diffusion kinetics, necessitating a sintering strategy that promotes densification without inducing abnormal grain growth. Here, a rapid Joule heating technique combined with two-step sintering is introduced that significantly improves the microstructural integrity of high-Ni cathodes. This approach en

SUBMITTER: Kim MH 

PROVIDER: S-EPMC12617037 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature