Battery Cell Diagnostics, Principal Engineer (Energy Storage) Permanent

We’re looking for a candidate to fill this position in an exciting company.

• Initiate cell failure root cause analysis for cell reliability, safety and performance risks by cascading down to potential fault causes based on mutually exclusive, collectively exhaustive (MECE) principle.
• Plan punctual cell diagnosis timeline prioritising highly suspected causes and collaborate with cell non-destructive/destructive analysis and simulation members to conduct comprehensive inhouse cell failure analysis.
• Specify cell failure modes, mechanisms and causes from the entire viewpoints and deep consideration of both empirical and theoretical analysis results.
• Work closely with battery pack/product teams by giving clear feedback of cell failure causes and correlation with pack/product operating condition to contribute to find out effective solution to fix quality issues quickly.
• Support to provide internal opinions for cell quality issues based on intensive inhouse cell diagnosis to accelerate problem solving and future prevention with external cell suppliers.
• Summarize and document cell quality incident reports timely to share relevant teams and senior management to update robust cell audit criteria, preventive pack/product design requirements.
• Help cell non-destructive/destructive cell analysis members to perform hands-on cell diagnostic activities if required.
• Build and manage relationships with internal departments, battery cell suppliers, external regulators, industry bodies within Energy Storage.

• 5+ years’ experience related to lithium-ion battery (LIB) cylindrical cell failure analysis that covers entire cell reliability, safety and performance issues.
• Experience working with LIB cylindrical cell design, development or production.
• An ability to disassemble LIB cylindrical cells safely with minimal sample damages.
• Experience of LIB cell fault tree analysis (FTA) to prioritise required characterisation and digest experimental/simulated data for robust cell failure cause analysis
• Broad understanding of LIB cell failure modes, mechanisms and causes related to cell mechanical design, manufacturing process, operating condition and material properties.
• A skill to demonstrate cell failure causes based on right characterisation methodology and well-organized test results
• Failure Modes and Effects Analysis (FMEA) experience to capture potential risks and provide failure prevention solution
• Documentation skill to summarize analysis reports clearly
• Strong organisational skills with a methodical and detailed approach.
• Persistent approach to problem solving and an inquisitive nature.
• Must demonstrate a passion for working for Dyson.
• Experience in LIB pack/product failure analysis in markets
• When required, travel to other Dyson facilities in Asia/UK for project engineering build support.
• Educated to Masters Degree level (scientific/engineering based)