Cathode Electrode Engineer

SES

Shanghai, China

Full Time

Posted March 17, 2026

Energy Storage

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Job Description

The Cathode Electrode Engineer is responsible for evaluating and developing cathode materials for high-energy lithium-ion and lithium metal batteries, designing electrode formulations, assembling and testing cells, and analyzing performance to optimize battery performance and reliability.

Key Responsibilities

Locate and evaluate candidate cathode materials for high energy cell design
Lead cathode electrode design to develop optimal electrode formulations
Assemble lithium metal coin and pouch cells and conduct performance testing
Perform electrochemical and material characterization tests to analyze battery performance
Evaluate new cathode materials from various suppliers through screening and testing

Requirements

Locate and evaluate candidate Cathode Materials for high energy cell design, including evaluation experience with High Ni content NCM series, NCA series, NCMA, LFP, and LFMP materials.
Lead Cathode Electrode Design to develop optimum electrode formulation to meet the project goals.
Develop and optimize Cathode Electrode process to meet the design specifications.
Assemble lithium metal coin and pouch cells and conduct testing with a focus on repeatability.
Perform electrochemical tests including current, voltage, cyclic voltammetry (CV), impedance spectroscopy, cycle life testing, and reliability tests to understand and improve battery performance.
Possess knowledge and test skills of SEM (Scanning Electron Microscopy), XRD (X-ray Diffraction), particle size determination, and GITT (Galvanostatic Intermittent Titration Technique).
Have a MS in materials science, chemical engineering, chemistry, or a related field with focus on electrochemistry, material science, or a related discipline.
Have knowledge and understanding of lithium-ion battery technologies including cathode material selection and synthesis, electrode fabrication, cell design, cell assembly, testing, and failure mode analysis.
Possess skills in testing coin and pouch cells.
Strong analytical and problem-solving skills, with the ability to design and conduct complex experiments employing DOE (Design of Experiments) approach to interpret and correlate experimental results with battery product performance.
Good oral and written communication skills and ability to work as a team player in a multi-functional environment.