Siham Doubaji

Serving as Battery Cell Product Owner and Senior Development Engineer, leading product vision and development for battery cell technologies.

Working as a Senior Development Engineer focused on battery cell development and validation.

• Leading a team by setting clear goals, fostering collaboration, and ensuring efficient execution.
• Defining the product vision in alignment with company strategy and translating it into actionable epics and stories.
• Managing and prioritizing the backlog, ensuring well-defined user stories with clear acceptance criteria.
• Leading cross-functional alignments to optimize workflow and enhance te

• Defined cell requirements, including design, chemistry, and integration aspects.
• Managed supplier interactions and collaborated with cross-functional teams.
• Designed and conducted performance, lifetime, and safety validation tests.
• Assessed next-generation chemistries and wrote technical reports.

• Development of novel ceramic electrolytes for Na-ion batteries.
• Electrochemical tests and characterization of all-solid-state sodium-ion batteries.
• Synthesis, electrochemical tests and characterization of iron and manganese-based layered oxides using advanced methods.
• Supervision of a master thesis and presented research findings.

• Synthesis of layered oxide cathode materials for Na-ion batteries using sol-gel, combustion, coprecipitation, and solid-state methods
• Structural and morphological characterization of powders through XRD (including Rietveld refinement), SEM, and EDS
• Electrochemical evaluation of materials in half-cells through GCPL, CV, EIS, and GITT techniques
• Supervision of three master thesis project

• Performed in-situ and ex-situ X-ray Absorption Spectroscopy (XAS) measurements at the Advanced Photon Source to investigate redox mechanisms in battery materials.
• Conducted electrochemical tests to evaluate battery performance.

Developing Materials for Sodium-ion batteries

Doctor of Philosophy in Materials Chemistry, focusing on developing materials for sodium-ion batteries.