1,3,2-Dioxathiolane 2,2-dioxide (DTD) is a sulfur-containing cyclic additive used in lithium-ion and lithium-metal battery electrolytes to enhance solid electrolyte interphase (SEI) formation and improve long-term cycling stability. DTD promotes the formation of a uniform, sulfur-rich interphase that protects the anode surface, particularly in high-voltage or high-energy-density systems. It is especially effective in stabilizing lithium-metal interfaces, mitigating parasitic reactions, and enabling safer, more durable cell operation.

Offered at high purity, DTD is a valuable component for researchers and developers focused on next-generation electrolyte systems and performance-optimized batteries.

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