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Battery Cost Reduction through Design of a Multi-Chemistry Pack

Tuesday, 21 June 2016
Riverside Center (Hyatt Regency)
M. Aryanpour, R. Ashcraft (Samsung Research America), and L. J. Miara (Samsung Electronics)
In recent years, there has been an enormous drive to develop fully or hybrid electric cars by taking advantage of novel secondary batteries, and in particular, of Li-based battery technologies. Realization of a fully electric vehicle (EV), nonetheless, requires overcoming big challenges that demand much larger energy densities, simultaneously with much higher rate (power) capabilities [1].

  Current efforts try to address those challenges by focusing on two main roadmaps: 1) Materials, that is, optimizing current or inventing new chemistries [2, 3], and 2) Battery Management and mathematical modeling [4, 5], that is, optimizing the usage of current chemistries through various strategies that would adapt charge/discharge cycling properties.

  In addition, there are prior or current works that try to take advantage of different available chemistries, which although promising, lack a clear roadmap for fully utilizing available technologies.

   Hereby, we introduce a clear roadmap/method for 1) determining the areas of benefit of, and 2) designing of a “multi-chemistry battery pack” that would perform better than any “single-chemistry packs”. In simple terms, we show how to determine when a multi-chemistry pack can beat its constituent single-chemistries, and how to design/utilize different chemistries in hybrid pack whenever the hybrid combination is more beneficial.

REFERENCES

[1] By panel reporters of National Research Council, “Overcoming Barriers to Deployment of Plug-in Electric Vehicles”, The (U.S.) National Academies of Sciences, Engineering, and Medicine, 2015.

[2] J.-M. Tarascon and M. Armand, “review article Issues and challenges facing rechargeable lithium batteries”, Nature, 414, 359-367, 2001

[3] J.B. Goodenough and Y.S. Kim, “Challenges for Rechargeable Li Batteries”, Chemistry of Materials, 22 (3), 587–603, 2010

[4] M.F.M. Sabri, K.A. Danapalasingam, and M.F. Rahmat, “A review on hybrid electric vehicles architecture and energy management strategies”, Renewable and Sustainable Energy Reviews, 53, 1433-1442, 2016

[5] A. Fotohi, D.J. Auger, K. Propp, S. Longo, and M. Wild, “A review on electric vehicle battery modelling: From Lithium-ion toward Lithium–Sulphur”, Renewable and Sustainable Energy Reviews, 56, 1008–1021, 2016