Impedance parameters and the state-of-charge. III. Zinc-manganese dioxide and magnesium-manganese dioxide dry batteries

Admittance Spectroscopy of Sealed Primary Batteries

“…The relations between these functions are Y*(m) = 1/Z*(m) =im C*(m) [4] In our discussion of the experimental results we will be making use of the plots of C'(m) and C"(m), Fig. 1 tremes of frequency, as well as of the linear Z((o) plots, Fig.…”

“…Manuscript received June 16, 1987. Pitting corrosion results from the breakdown of the passive film on a metal surface. Numerous studies have shown that the susceptibility of a metal to passivity breakdown depends on many variables, such as alloying elements, surface condition, crystallographic orientation, inclusion type and density, the structure, composition, and thickness of the passive film (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15), and the composition of the solution (8,(16)(17)(18). The object of this study was to measure critical pitting potentials and pitting induction times when all but one variable were held constant in order to evaluate various pitting corrosion theories.…”

“…The measurements of small-signal alternating current (ac) response provides direct information on the dynamics of processes taking place in these complex electrochemical systems (2)(3)(4)(5)(6) which involve interfacial reactions and transport of ionic species through the electrolyte which is contained in geometrically complex networks of porous nonconducting materials.…”

Estimating Depth of Discharge of Lithium-Thionyl Chloride Batteries from Their Impedance Characteristics

“…Though the impedance method has been employed for studying various cells [1][2][3][4][5][6][7][8][9][10][11], it has failed thus far to produce sufficiently reliable results when used for the determination of DOD and lifetime of lithium-thionyl chloride cells.…”

Ageing of magnesium /manganese dioxide primary cells

“…The dierence between the two cell systems is in the electrochemistry of the anode material, while the electrochemistry of the MnO 2 remains unaltered. The standard electrode potential of the Mg anode is )2.37 V against )0.76 V for the Zn anode; the electrochemical speci®c capacity of Mg is 2.2 Ah g )1 against 0.83 Ah g )1 for Zn and the density of Mg is 1.74 g cm )3 against 7.14 g cm ) 3 for Zn. In addition to these favourable electrochemical features for achieving higher energy density for the Mg/MnO 2 cell than the Zn/MnO 2 cell, the resources for Mg are plentiful.…”