| abstract |
A rechargeable alkali metal electrochemical cell,nand preferably a lithium-ion secondary cell, constructednof low magnetic susceptibility materials, is described.nThe non-magnetic characteristics enable the secondaryncell to be used within the confines of a MagneticnResonance Imaging system.nA secondary electrochemical cell wherein the length and width of thennegative electrode extend beyond the length and width of the positivenelectrode to provide the positive electrode bounded by the negativenelectrode. |