Purpose of the Role
Separator Material Engineer – Cell Design
Location: Agratas R&D Centre, Oxford, UK
Function: Cell Technology | Cell Design
Employment Type: Full-Time | Permanent
Reports to: Materials Manager (UK) – Cell Technology / Cell Development
The Opportunity
Agratas, the Tata Group’s global battery business, is building one of Europe’s most advanced battery cell R&D teams—and we want you to be part of it. Based at our new Oxford R&D Centre, the Separator Material Engineer will play a key role in the design and development of separator materials that meet the performance, safety, and scalability demands of next-generation lithium-ion batteries.
In this role, you’ll lead the evaluation, selection, optimization, and deployment of separator materials—working cross-functionally with internal teams and external suppliers to accelerate cell innovation and industrialization.
Key Responsibility Areas
Separator Material Selection
Lead global surveys, benchmarking, and screening of separator materials and coatings.
Drive technical engagement with leading and emerging suppliers to ensure alignment on specifications and performance targets.
Advise on material down-selection based on structure–property relationships and commercial viability.
Material Characterization & Testing
Define and lead analytical testing methods (e.g., porosity, permeability, ion conductivity, thermal behavior).
Develop and implement new tools and techniques for characterizing separator materials.
Support quality engineering with tools and data to inform decision-making.
Formulation & Design Support
Advise on separator film types, coatings, and processing methods to support electrode compatibility and full-cell performance.
Collaborate with JR assembly teams to optimize separator performance and integration.
Supply Chain Support
Define material specifications and support procurement teams with supplier assessments and quality audits.
Contribute to DFMEA, material qualification, and supplier development initiatives.
Production Support
Provide input on materials handling, storage, and processing requirements for scale-up and manufacturing.
Bridge R&D and operations by ensuring materials are production-ready.
Documentation & Reporting
Own and maintain material specifications and reports.
Deliver regular updates and technical documentation to internal stakeholders.
Job Context
Technical Expertise
In-depth knowledge of separator materials, coatings, and manufacturing processes (e.g., polyolefin films, ceramic coatings).
Proficiency with analytical techniques such as thermal analysis, CH/DCH behavior, ion conductivity, etc.
Understanding of separator–electrode–electrolyte interactions and safety/performance impacts.
Industry Awareness
Awareness of key separator suppliers and current/future trends in the global separator materials market.
Analytical & Communication Skills
Ability to interpret complex data and translate findings into actionable insights.
Strong verbal and written communication for reporting and collaboration across functions.
Team Player Mindset
Experience working in cross-functional R&D teams within fast-paced, high-tech environments.
Passion for clean energy innovation and continuous learning.
Qualifications
PhD or Master's degree in Electrochemistry, Chemistry, Materials Science, or Chemical Engineering.
Experience in battery materials development, ideally in separator materials or components used in lithium-ion batteries.
Why Join Agratas?
At Agratas, we’re building something transformative. As a Tata Group company, we combine world-class backing with a startup mindset, creating an environment where you can innovate, influence, and grow. Our mission? To power a cleaner, smarter future through advanced battery technologies.
Apply Now
If you're ready to shape the future of battery cell design and play a key role in developing world-leading separator materials, we’d love to hear from you.
Join us at Agratas and be part of a team powering sustainable progress.