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Power storage devices are shown to increase their efficiency if they aredesigned by using quantum systems. We show that the average power output of aquantum battery based on a quantum interacting spin model, charged via a localmagnetic field, can be enhanced with the increase of spin quantum number. Inparticular, we demonstrate such increment in the power output when the initialstate of the battery is prepared as the ground or canonical equilibrium stateof the spin-j XY model and the bilinear-biquadratic spin-j Heisenberg chain(BBH) in presence of the transverse magnetic field. Interestingly, we observethat in the case of the XY model, a trade-off relation exists between the rangeof interactions in which the power increases and the dimension while for theBBH model, the improvements depend on the phase in which the initial state isprepared. Moreover, we exhibit that such dimensional advantages persist evenwhen the battery-Hamiltonian has some defects or when the initial battery-stateis prepared at finite temperature.

Dimensional enhancements in a quantum battery with imperfections