A New Dopant-Pairing Strategy Boosts Stability of Lithium-Ion Battery Cathodes
By Quantum Server Networks – August 2025 Lithium-ion batteries ( LiBs ) have become the backbone of modern portable electronics, electric vehicles, and renewable energy storage systems. Their high energy density, lightweight design, and rechargeability make them indispensable to daily life. However, as demand for higher-capacity batteries grows, scientists face a persistent challenge: balancing energy density with long-term stability . A new study led by researchers at Peking University, Shanghai Jiao Tong University, and the Chinese Academy of Sciences introduces a breakthrough approach to tackling this challenge. Published in Nature Energy , the work demonstrates how a dopant-pairing strategy significantly enhances the stability of Ni-rich layered cathodes—the type of materials often used in high-energy lithium-ion batteries. Why Cathode Stability Matters Cathodes are the positive electrodes in lithium-ion batteries and play a cr...