Senior Scientist, Electrolyte

The SES AI Department is seeking an Electrolyte Scientist to join our team dedicated to mobile energy storage. This scientist will be responsible for creating innovative electrolyte materials and systems that enable safe, long‑lasting, and high‑energy‑density lithium‑ion batteries.

• Design, develop, and optimize electrolyte formulations, and meticulously analyze their interactions with other cell components during battery cycling and storage.
• Work collaboratively in a fast‑paced environment to advance energy storage technology.

• MS (or better) level of understanding in Electrochemistry, Materials Science, Chemical Engineering, or a related physical science field.
• Experience with developing semi‑solid electrolytes (e.g. in‑situ gel polymer electrolyte, polymer electrolyte, hybrid solid/liquid electrolyte) highly preferred.
• Minimum of 3+ years of industrial or advanced academic experience (post‑MS) focused on electrolyte or battery materials development.
• Strong knowledge of common lithium‑ion electrolyte systems, including common lithium salts, solvents, and additives, and their specific roles.
• Experience applying physical‑chemical methods to tackle formulation problems and understanding properties like density, viscosity, and ionic conductivity.
• Hands‑on expertise in advanced electrochemical characterization, including Electrochemical Impedance Spectroscopy (EIS) and galvanostatic cycling.
• Proven experience working with moisture‑sensitive materials in a glovebox or dry room environment, and expertise in handling high‑purity chemicals.
• Proficiency in battery cell tests (coin/pouch) and scientific data analysis (e.g., using statistical or scientific software).
• Proven ability to onboard and integrate existing in‑house knowledge with new discoveries and challenges.