Do you have a passion for invention and self-challenge? Do you thrive on pushing the limits of what's considered feasible? As part of our Battery Engineering group, you'll help craft creative battery algorithm and modeling solutions that deliver more energy in smaller spaces than ever before! Join us, and you'll help us innovate new battery technologies that continually outperform the previous iterations. By collaborating with other product development groups across Apple, you'll push the industry boundaries of what batteries can do and improve the product experience for our customers across the world.
Description This position will develop battery physics-based models and machine learning algorithms to optimize battery performance. Details are:
Mathematical modeling of the electrochemical behavior of lithium-ion cells using partial differential equations (PDEs) or systems of ordinary differential equations (ODEs).Model battery aging mechanisms into mathematical representations using physics-based model and machine learning models.Work with battery pack engineers to generate computationally efficient models that can be used as a basis for in-system implementation.Develop fast charge algorithms in Apple products while handling aging of batteries.Work with battery engineering groups to verify accuracy of battery models and performance simulation of new cell designs.Conduct investigations, prepare status reports related to design and performance issues, and contribute to resolving issues as required.Act as technical contact point for electrochemical and aging modeling, control algorithms, machine learning algorithms, and software, techniques and application.Minimum Qualifications Master's degree with a minimum of 3 years relevant industry experience.Prior work with electrochemical processes and performance/safety characterization experience with emphasis on lithium-ion or lithium polymer batteries.Experience in machine learning-based optimization techniques like generic algorithm and gradient-based ML algorithms.Experience in deploying physics-aware machine learning model into products.Preferred Qualifications PhD degree in relevant domains with 5 years relevant industry experience.Strong working knowledge of Matlab/Python and COMSOL.Strong proficiency in mathematical modeling of linear and nonlinear dynamical systems and distributed parameter systems.Strong proficiency in physics-aware machine learning modeling algorithms and computationally efficient optimization with machine learning techniques.Solid experience of deploying physics-based hybrid machine learning models into mass production products.Proven proficiency in machine learning-based optimization techniques like generic algorithm and gradient-based ML algorithms.Good proficiency in modeling of linear and nonlinear dynamical systems and distributed parameter systems.Familiarity with applicable test equipment, test procedures, international standards, and certified agency requirements applicable to rechargeable lithium battery products.Familiarity with current state of the art production processes applicable to lithium rechargeable cells.Strong self-motivation and communication skills to interact effectively with other engineers and proven experience on managing a few high-talented engineers.Apple is an equal opportunity employer that is committed to inclusion and diversity. We take affirmative action to ensure equal opportunity for all applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, Veteran status, or other legally protected characteristics. Learn more about your EEO rights as an applicant.
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