New Insights into Battery Lifecycles
New research from Northeastern University challenges long-held assumptions about the stability of electrode particles within lithium-ion batteries. Previously, these particles were understood to be fixed throughout a battery's life cycle. However, findings published in "Science" indicate that these particles move dynamically, similar to shooting stars.
Research Findings and Methodology
Juner Zhu, a professor of mechanical and industrial engineering at Northeastern University and a co-author of the research, explained that this dynamic movement adds a new dimension to understanding battery degradation.
Previously, these particles were understood to be fixed throughout a battery's life cycle.
The research team, which included experts from the University of Texas at Austin, observed these particle movements using motion tracking mapping and advanced X-ray imaging of three-dimensional objects while batteries were in use.
Causes and Implications of Particle Movement
The researchers theorize that these movements are primarily caused by evolving chemical reactions within the battery, leading particles to move at varying rates over time.
Zhu described batteries as "living systems" that change over time, requiring different management strategies at various stages of their life, similar to a human life cycle.
Path to Longer-Lasting Batteries
Better understanding this phenomenon is crucial for reducing battery degradation and developing more intelligent battery control management systems. Zhu stated that control algorithms should dynamically evolve to match the evolving nature of the particles, ultimately leading to longer-lasting batteries. He is currently collaborating with researchers in the United Kingdom to further explore these theories.
Control algorithms should dynamically evolve to match the evolving nature of the particles, ultimately leading to longer-lasting batteries.