S

SES AI

Li Metal batteries for EVs

Cathode Electrode Engineer

Electrical EngineeringConfirmed live in the last 24 hours
Full-timeShanghai, ChinaNo salary listedIn-person

About the Job

Requirements

  • A master's degree in materials science, chemical engineering, chemistry, or a related field, with a focus on electrochemistry, materials science, or a related field.
  • 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.
  • Skills in testing coin and pouch cells.
  • Strong analytical and problem-solving skills, with the ability to design and conduct complex experiments using a Design of Experiments approach to interpret and correlate experimental results with battery product performance.
  • Oral and written communication skills and the ability to work in a multifunctional environment.

Responsibilities

  • Locate and evaluate candidate cathode materials for high-energy cell design, with anode material consisting of lithium metal coated on copper foil.
  • Locate and evaluate new cathode materials from various suppliers and run evaluation and screening processes.
  • Lead cathode electrode design by developing an optimum electrode formulation to meet the goal.
  • Develop cathode electrode processes to meet the design.
  • Assemble lithium-metal coin and pouch cells and conduct testing with a focus on repeatability.
  • Perform crystal structure, microstructure, particle size, voltammetry, impedance spectroscopy, cycle life, and reliability tests to understand and improve performance.
  • Conduct electrochemical tests using current, voltage, cyclic voltammetry, impedance, and galvanostatic intermittent titration technique.
  • Use scanning electron microscopy, X-ray diffraction, and particle size determination.

Desired Qualifications

  • Lithium-metal battery experience is a plus.
  • Knowledge of cathode material mass production experience is a plus.
  • Knowledge of solid electrolyte material thermal processing and experience with solid-state battery development is a plus.
  • Desire to learn experimental and analytical techniques.

About the Company

SES AI

Li Metal batteries for EVs

SES AI develops Lithium Metal battery technology for electric transportation, powering EVs and aircraft through its Li Metal cells. The batteries offer higher energy density and longer range than traditional lithium-ion cells, with research, manufacturing, and licensing handled across its operations; testing bunkers and regular data reports support development and quality. The company differentiates itself by focusing on Li Metal chemistry, a data-driven transparency approach, and a licensing/partnership model in addition to direct battery sales. Its goal is to enable broader adoption of electric mobility and aerospace applications by providing high-performance power solutions and collaborative licensing agreements.

Company size
51-200
Company stage
IPO
Headquarters
Woburn, MA
Founded
2012

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