Battery Cell Formation & Aging Engineer

EnerSys; Greenville (SC); On-site; USD 90,000 - 130,000; Full time

Job summary

EnerSys seeks a Specialist, Formation & Ageing - Battery Cells to drive formation and ageing processes for cylindrical Li-ion cells. You will work with process engineering, cell development, production, quality, maintenance, automation, and suppliers to scale from pilot to high-volume manufacturing.

You will define formation recipes, validate ageing criteria, analyze data, and implement improvements to yield, safety, and efficiency while ensuring compliance with safety and quality standards.

Qualifications

• Bachelor's degree in a technical discipline required.
• Experience in lithium-ion battery manufacturing or formation processes preferred.
• Experience with equipment qualification, process validation, and production ramp-up preferred.

Responsibilities

• Develop, optimize, and sustain formation, ageing, grading, and end-of-line processes for cylindrical Li-ion battery cells.
• Define, validate, and maintain formation recipes including parameters and safety controls.
• Establish ageing strategies: stabilization criteria, self-discharge screening, and voltage monitoring.
• Analyze process data: voltage curves, currents, capacity, DCIR, temps, and process KPIs.
• Implement process improvements to enhance quality, yield, throughput, and efficiency.
• Support equipment selection, FAT/SAT, installation, qualification, and startup activities.
• Develop process docs, standards, work instructions, control plans, and escalation procedures.
• Collaborate with automation, MES, data engineering, and quality teams for traceability and data integrity.
• Investigate deviations, equipment issues, safety events, and abnormal cell performance.

Education

Bachelor's degree in Electrical Engineering, Materials Science, Battery Technology, Chemical Engineering, Automation Engineering, Manufacturing Engineering, or a related technical discipline

Job description

EnerSys seeks a Specialist, Formation & Ageing - Battery Cells to drive formation and ageing processes for cylindrical Li-ion cells. You will work with process engineering, cell development, production, quality, maintenance, automation, and suppliers to scale from pilot to high-volume manufacturing.

You will define formation recipes, validate ageing criteria, analyze data, and implement improvements to yield, safety, and efficiency while ensuring compliance with safety and quality standards.