Cell Mechanical Engineer

Tucson, AZ

Sion Power is the leading developer of high-energy rechargeable, lithium metal battery technology with more than 20 years in research and development. Years of research and development has yielded the Licerion® lithium metal technology which is poised to dramatically change the lithium battery landscape, delivering the highest combination of energy density and specific energy available.


  • Develop mechanical designs for battery cell utilizing 3D CAD and supported by analysis.
  • Create prototypes and support the development of manufacturing processes and automation.
  • Drive cross functional collaboration with Cell engineers, manufacturing engineers, suppliers, and test engineers to transition conceptual designs to production.
  • Determine required tolerances using GD&T and produce 2D drawings.
  • Conduct DFMEA and Failure analysis.
  • Prepare documentation and requirements and deliver technical presentations.
  • Research and benchmark competitive technologies.
  • Characterize cell thermal behavior and modeling.


  • B.S. in Mechanical Engineering (or equivalent)
  • Knowledge of material properties and applications
  • Strong communication and a team player
  • Experience in COMSOL modeling is a plus
  • Familiarity with Lithium-ion cells, module and battery pack design
  • Experience designing parts for mass production with automated assembly line
  • Data acquisition and test equipment
  • FEA