EURANDOM

Integrated Batteries (i-BAT)
NIMH
Alexander Ledovskikh
Together with Dr. D.Danilov and Prof. Dr. P.H.L.Notten, all processes taking place in the NiMH battery
have been investigated including main charging-discharging reactions and side overchargingoverdischarging
processes. Following our general modelling strategy chemical description of battery
processes has been further converted to mathematical equations. Detailed description of the thermodynamic
of the MH electrode is given by the Lattice Gas Model (LGM, A. Ledovskikh, D. Danilov, W.J.J.
Rey, P.H.L. Notten, Phys. Rev. B, 73 (2006) 014106) which takes into account interactions between absorbed
hydrogen atoms and effect of the phase transition taking place during hydrogen storage. Principles
of chemical and electrochemical kinetics of the complex hydrogen storage system described in A.
Ledovskikh, D. Danilov and P.H.L. Notten, Phys. Rev. B., 76 (2007) 064106; A. Ledovskikh, D. Danilov, P.
Vermeulen and P.H.L. Notten, Electrochim. Acta, 55 (2009) 19, were also used in the proposed mathematical
description of BMS.
Testing of the new BMS and simulation of the NiMH battery operation using the proposed model will
be done during the second phase of the current NEO project (01-12-2009-01-05-2010).
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