In the realm of new energy vehicles and large-scale energy storage systems, there exists a pressing need for ultra-fast charging and high-capacity batteries. This urgency arises from the fact that the performance of traditional graphite anode materials is nearing its practical limits. Although black phosphorus anodes boast a high lithium storage capacity, they are plagued by certain defects that cause a deterioration in fast-charging performance.

The research team, led by Ma Yanwei at a specific research institute, has put forward a lattice phosphorus-nitrogen (P-N) bond engineering strategy. This innovative approach has successfully broken through technological barriers, allowing black phosphorus anode materials to achieve stable charging and discharging at ultra-high rates. The soft-pack battery developed by the team, utilizing black phosphorus as the anode and lithium iron phosphate as the cathode, has demonstrated impressive performance metrics. It has attained an energy density of 282 watt-hours per kilogram, can charge up to 80% of its theoretical capacity within a mere 10 minutes, and maintains stability even after thousands of charge-discharge cycles.

This remarkable achievement paves the way for new advancements in energy storage devices, supports the upgrading of related equipment, and holds immense significance for propelling the development of new energy vehicles and energy storage technologies. Moreover, it enhances China's international competitiveness in this field. This collaborative research effort was carried out in conjunction with the Royal Melbourne Institute of Technology in Australia. The findings have been published in the prestigious journal Nature Communications and received support from various funding sources.