R&D Intern

About the role#

Enovix is seeking an R&D Intern to support the design, fabrication, testing, and analysis of lithium-ion batteries with silicon-based anodes. This role is intended for a PhD student or graduate researcher with experience in electrochemistry, battery materials, cell testing, and failure analysis. You will collaborate with scientists and engineers to support the development of high-performance lithium-ion cells, working across fundamental science, experimental execution, and product-focused development.

What you'll do#

• Design and evaluate silicon-based anode materials, composites, binders, conductive additives, and electrode formulations.
• Fabricate electrodes and coin, pouch, or other test cells for electrochemical evaluation.
• Perform battery testing including formation, cycling, rate capability, fast-charge testing, impedance measurements, and diagnostics.
• Analyze capacity retention, coulombic efficiency, impedance growth, swelling, and other key performance metrics.
• Investigate silicon anode degradation mechanisms such as volume expansion, SEI evolution, particle fracture, and lithium inventory loss.
• Utilize materials characterization techniques such as SEM, TEM, XRD, XPS, Raman, FTIR, BET, or TGA.
• Develop data-driven recommendations to guide material and cell design, and document results in technical reports.

What you'll need#

• Current enrollment in a PhD program with a focus on batteries, electrochemistry, materials science, chemical engineering, mechanical engineering, or a related field.
• Research experience in lithium-ion batteries, specifically with silicon-carbon or other advanced anode systems.
• Strong understanding of battery fundamentals, including electrode design, interfacial chemistry, SEI formation, transport limitations, and cell degradation.
• Hands-on experience with battery cell assembly and electrochemical testing.
• Ability to analyze complex experimental data and translate results into actionable technical insights.

Location & details#

• Location: Fremont, California.
• Modality: On-site.
• Compensation: This is a paid internship with an hourly pay range of $40–$45.
• Duration: 3–6 months.
• Employment type: Full-time.