A team of scientists from India and the United States has designed a new cathode material for sodium-ion batteries that demonstrates fast charging, structural stability, and strong capacity retention, according to a report published by SodiumBatteryHub. The cathode uses five transition metals arranged in a highly disordered atomic structure, a design known as a high-entropy configuration. [1] In testing, the cathode retained nearly 84 percent of its capacity after 250 rapid charge-discharge cycles, the report stated. The material kept a stable hexagonal structure during operation, avoiding common degradation mechanisms. The work aims to improve sodium-ion batteries for grid-scale renewable energy…

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