Senior Scientist, Electrolyte

Jobtailor; Woburn (MA); On-site; USD 90,000 - 130,000; Full time

Job summary

SES AI Department seeks an Electrolyte Scientist to advance mobile energy storage by creating innovative electrolyte materials and systems for safe, high-energy lithium‑ion batteries. You will design, develop, and optimize formulations and study their interactions with cell components during cycling and storage.

You will work in a fast-paced team, apply physical‑chemical methods to solve formulation challenges, and employ EIS and galvanostatic testing.

Qualifications

• MS (or higher) in Electrochemistry, Materials Science, Chemical Engineering, or related field.
• Experience with semi-solid electrolytes preferred (gel/polymer/hybrid).
• 3+ years in electrolyte or battery materials development.
• Strong knowledge of lithium-ion electrolyte systems and additives.
• Experience applying physical-chemical methods to formulation problems.
• Hands-on electrochemical characterization like EIS and galvanostatic cycling.
• Experience handling moisture-sensitive materials in glovebox/dry room.
• Proficiency with battery cell tests and data analysis tools.
• Ability to onboard existing in-house knowledge with new discoveries.

Responsibilities

• Design, develop, and optimize electrolyte formulations and analyze their interactions during cycling and storage.
• Collaborate in a fast-paced environment to advance energy storage technology.

Skills

Electrochemistry

Materials Science

Chemical Engineering

Electrolyte formulations

EIS

Galvanostatic cycling

Glovebox handling

Data analysis

Education

MS or higher in Electrochemistry or related field

Tools

EIS equipment

Coin/pouch cell testing rigs

Scientific data software

Job description

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.

Requirements

• 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.