Researchers in China have developed a dual-shell coating that could make high-capacity lithium-ion batteries more durable, addressing long-standing problems with lithium-rich cathodes.
LiF@spinel design by a team of researchers from Hebei University and Longyan University unites two protective layers to prevent surface damage and improve cycling performance, offering a practical route to stable, high-energy batteries.
Lithium-ion batteries power most of today’s electric vehicles, smartphones, and renewable energy storage systems. They are lightweight, rechargeable, and pack a high energy density, making them vital for clean power transitions. Yet the technology faces hurdles.
Cathode instability, electrolyte breakdown, and gradual capacity fade shorten lifespan. Safety risks, such as overheating and fire hazards, also remain a concern. In addition, reliance on scarce metals like cobalt and nickel raises cost and supply…
