Researchers Investigate Lattice Collapse in High-Nickel Layered Oxide Cathodes Affecting Lithium-Ion Battery Stability

Researchers have identified a structural issue in high-nickel layered oxide cathodes, such as LiNi₀.₉Mn₀.₁O₂, that impacts lithium-ion battery performance and durability. The phenomenon, known as lattice collapse, involves significant dimensional changes within the cathode material during battery operation. Specifically, the material experiences a sudden contraction along its crystallographic c-axis—a process referred to as “c-collapse”—when charged.

This structural instability poses challenges for the long-term functionality of lithium-ion batteries, which rely on stable cathode materials to maintain efficiency and capacity over repeated charge cycles. High-nickel layered oxides are widely used due to their high energy density potential; however, their susceptibility to lattice collapse has prompted further investigation into mitigating this issue. Researchers continue to explore solutions aimed at preventing these dimensional changes and improving the reliability of advanced battery technologies.

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Source: GO-AI-ne1

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Date: November 27, 2025

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