Tris(trimethylsilyl) borate (TMSB) is a boron- and silicon-containing electrolyte additive used in lithium-ion and lithium-metal batteries to enhance interfacial stability and cycling performance. TMSB is especially effective at forming a stable, inorganic-rich solid electrolyte interphase (SEI) on anode surfaces, contributing to reduced impedance growth, improved Coulombic efficiency, and extended cycle life. Its molecular structure also supports high-voltage stability, making it suitable for advanced cathode materials. TMSB is a valuable additive in next-generation electrolyte formulations targeting fast charging, long-term stability, and wide electrochemical windows.

Supplied at high purity, TMSB is ideal for both research and commercial battery applications.

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