Revolutionizing EV Batteries: Innovative New Binder Doubles Performance

Researchers have engineered a high-performance binder for micro-silicon oxide -based electrodes within lithium-ion batteries with poly , which enhances electrochemical performance and durability compared to conventional options. Credit: Noriyoshi Matsumi from JAIST

Lithium-ion batteries are widely used in various applications but need improved binders to enhance their performance to meet evolving demands. This is because silicon oxide , a promising anode material due to its high capacity and low cost, faces several challenges. These include poor conductivity, which leads to slower charging rates, and significant expansion during charging.

The PVPA-based cell also delivered almost twice the discharging capacity compared to the PAA-based cell after 200 cycles, with the PVPA-based half-cell achieving 1300 mAhgSiO after the same cycle count. Even after 200 cycles of charge-discharge, exfoliation from the current collector was not observed in scanning electron microscopy, unlike with PVDF or PAA binders.

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