Sodium titanium phosphate

Sodium titanium phosphate (NaTi₂(PO₄)₃), also known as sodium dititanium triphosphate (NTP), is an advanced anode material specifically designed for sodium-ion battery applications. NTP crystallizes in a unique NASICON-type structure that promotes rapid sodium ion diffusion, making it particularly suitable for high-performance energy storage systems. This battery-grade powder features a 3 wt% carbon coating to enhance electronic conductivity and has a particle size ranging from 1-3 μm (D50). Our NTP demonstrates excellent electrochemical properties, including a first cycle discharge capacity of 100 mAh/g at a rate of 0.1C, with a first cycle efficiency exceeding 85%.

Battery manufacturing

Sodium titanium phosphate is primarily employed as an anode material in sodium-ion batteries, which promise a sustainable alternative to lithium-ion technologies. NTP is known for its long cycle life, which is attributed to the material′s ability to maintain structural integrity during charge-discharge cycles. Batteries utilizing NTP as the anode are less susceptible to thermal runaway than sodium metal batteries; this is due to NTP′s (de)insertion potential being higher than that of sodium metal, which prevents the formation of sodium dendrites—one of the primary failure mechanisms in sodium metal batteries. Furthermore, the optimized small particle size and carbon coating of our NTP enhance its performance at elevated discharge rates. Collectively, these attributes position NTP as an ideal candidate for diverse energy storage applications, including both aqueous and non-aqueous sodium-ion batteries, as well as hybrid capacitor systems.