Hiring: Senior Scientist, Electrolyte Company: SES AI Location: Woburn, MA Job Posted Time: 2026-09-10 14:42:38 Employment Type: Hybrid Target Skills & Keywords : Ionic, Machine Learning, Project Management, R About the job Experience: •Scientific Knowledge: MS (or better) level of understanding in Electrochemistry, Materials Science, Chemical Engineering, or a related physical science field. •Chemistry Foundation: Strong knowledge of common lithium-ion electrolyte systems, including common lithium salts, solvents, and additives, and their specific roles. •Physicochemical Understanding: Experience applying physical-chemical methods to tackle formulation problems and understanding properties like density, viscosity, and ionic conductivity. •Electrochemical Techniques: Hands-on expertise in advanced electrochemical characterization, including Electrochemical Impedance Spectroscopy (EIS) and galvanostatic cycling. •High-Purity Handling: Proven experience working with moisture sensitive materials in a glovebox or dry room environment, and expertise in handling high purity chemicals. Required Skills: •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 •Designing, developing, and optimizing electrolyte formulations •, as well as meticulously analyzing their interactions with other cell components during battery cycling and storage. The ideal candidate is a passionate, highly detail-oriented, and collaborative team player who thrives in a fast-paced environment and shares a vision for advancing energy storage technology. •Formulation and Materials Design •Design and develop electrolyte formulations compatible with high energy density lithium-ion anodes and high nickel content NMC cathode cell chemistries to achieve a long cycle life safely. •Design electrolyte systems to demonstrate improvements in safety performance, including dimensional stability during battery cycling and storage. •Provide technical assessment on existing electrolyte systems, additives, and lithium salts in high energy, high-capacity rechargeable lithium-ion cells. •Fully characterize coin and pouch cell performance using new materials and formulations. Qualifications: •Advanced Degree: Doctorate (Ph.D.) in Chemistry, Chemical Engineering, or a related field, with 3+ years of post-PhD industrial experience. •Diverse Formulation: Experience in formulation development beyond liquid electrolytes, including exposure to polymer electrolytes, ionic liquids, and/or solid-state electrolytes. •Large Format Experience: Direct experience working with and characterizing large format cells (e.g., prismatic or cylindrical). •Software/Modeling: Experience with computational chemistry or battery modeling tools. •Industry Alignment: Demonstrated passion for and experience in the mobile energy or automotive space. •The salary range for this position as required under applicable pay transparency laws. Interested candidates, please apply directly through the job posting on company's career page or try via AI auto apply on this platform. Don't miss this opportunity to join a forward-thinking team!