Research output: Contribution to journal › Article
Influence of kinetics of hydrogen transport in a metal hydride anode on the discharge properties of the Ni–MH batteries. / Gabis, I. E.; Chernov, I. A.; Dobrotvorskiy, M. A.; Kuznetsov, V. G.; Voyt, A. P.; Tarasov, B. P.; Yafyasov, A. M.
In: Journal of Alloys and Compounds, Vol. 629, No. 242-246, 2015.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Influence of kinetics of hydrogen transport in a metal hydride anode on the discharge properties of the Ni–MH batteries
AU - Gabis, I. E.
AU - Chernov, I. A.
AU - Dobrotvorskiy, M. A.
AU - Kuznetsov, V. G.
AU - Voyt, A. P.
AU - Tarasov, B. P.
AU - Yafyasov, A. M.
PY - 2015
Y1 - 2015
N2 - We present a distributed mathematical model and fit discharge curves of Ni–MH anode made of new alloy La2MgNi9. Conditions justified the single-particle approximation with the shrinking core morphol- ogy of the hydride phase. We used the connection between voltage on the MH electrode and hydrogen concentration in the solid solution near the electrolyte facing surface. This connection is based on shift of the Fermi energy of the metal due to hydrogen dissolution. The model takes hydrogen diffusion and free phase boundary into account. It can be built into more general models describing discharge of Ni– MH rechargeable batteries
AB - We present a distributed mathematical model and fit discharge curves of Ni–MH anode made of new alloy La2MgNi9. Conditions justified the single-particle approximation with the shrinking core morphol- ogy of the hydride phase. We used the connection between voltage on the MH electrode and hydrogen concentration in the solid solution near the electrolyte facing surface. This connection is based on shift of the Fermi energy of the metal due to hydrogen dissolution. The model takes hydrogen diffusion and free phase boundary into account. It can be built into more general models describing discharge of Ni– MH rechargeable batteries
KW - Metal hydride battery
KW - Metal hydride anode
KW - Shrinking core model
KW - Hydrogen diffusion
KW - Dehydriding kinetics
U2 - 10.1016/j.jallcom.2014.12.111
DO - 10.1016/j.jallcom.2014.12.111
M3 - Article
VL - 629
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
SN - 0925-8388
IS - 242-246
ER -
ID: 3932368