Optimal Charging Profiles with Minimal Intercalation-Induced Stresses for Lithium-Ion Batteries Using Reformulated Pseudo 2-Dimensional Models | Zendy

Bharatkumar Suthar | Zendy; Paul W. C. Northrop | Zendy; Richard D. Braatz | Zendy; Venkat R. Subramanian | Zendy

Open Access

Optimal Charging Profiles with Minimal Intercalation-Induced Stresses for Lithium-Ion Batteries Using Reformulated Pseudo 2-Dimensional Models

Author(s) -

Bharatkumar Suthar,

Paul W. C. Northrop,

Richard D. Braatz,

Venkat R. Subramanian

Publication year - 2014

Publication title -

journal of the electrochemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.258

H-Index - 271

eISSN - 1945-7111

pISSN - 0013-4651

DOI - 10.1149/2.0211411jes

Subject(s) - fade , intercalation (chemistry) , constant current , lithium (medication) , battery (electricity) , limit (mathematics) , constant (computer programming) , voltage , ion , materials science , current (fluid) , time constant , control theory (sociology) , computer science , chemistry , electrical engineering , power (physics) , thermodynamics , engineering , physics , mathematics , inorganic chemistry , mathematical analysis , organic chemistry , medicine , control (management) , endocrinology , artificial intelligence , programming language , operating system

This paper illustrates the application of dynamic optimization in obtaining the optimal current profile for charging a lithium-ion battery by restricting the intercalation-induced stresses to a pre-determined limit estimated using a pseudo 2-dimensional (P2D) model. This paper focuses on the problem of maximizing the charge stored in a given time while restricting capacity fade due to intercalation-induced stresses. Conventional charging profiles for lithium-ion batteries (e.g., constant current followed by constant voltage or CC-CV) are not derived by considering capacity fade mechanisms, which are not only inefficient in terms of life-time usage of the batteries but are also slower by not taking into account the changing dynamics of the system.United States. Advanced Research Projects Agency-Energy (Award DE-AR0000275)Washington University (Saint Louis, Mo.

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