A new 'two-faced' material lets battery juice move 1,000 times faster than anything we’ve got right now.
March 24, 2026
Original Paper
Characterizing High-Capacity Janus Aminobenzene-Graphene Anode for Sodium-Ion Batteries with Machine Learning
arXiv · 2603.22254
The Takeaway
Sodium batteries are a cheaper, greener alternative to lithium, but they typically charge too slowly for high-performance use. Researchers engineered a 'Janus' graphene material that acts as a high-speed highway for energy, potentially making fast-charging, inexpensive sodium batteries a reality.
From the abstract
Sodium-ion batteries require anodes that combine high capacity, low operating voltage, fast Na-ion transport, and mechanical stability, which conventional anodes struggle to deliver. Here, we use the SpookyNet machine-learning force field (MLFF) together with all-electron density-functional theory calculations to characterize Na storage in aminobenzene-functionalized Janus graphene (Na$_x$AB) at room-temperature. Simulations across state of charge reveal a three-stage storage mechanism-site-spec