Spike Detection and Sorting: Combining Algebraic Differentiations with ICA

A deferred action battery in which activation is initiated by rotating one part of the battery (the rotor) with respect to a second part of the battery (the stator). A liquid electrolyte is stored within a chamber in the rotor, and a cathode mix is stored in a chamber in the stator. A rotor port leads to the rotor chamber and a stator port leads to the stator chamber. Prior to activation, the rotor and stator ports are misaligned and sealed, but rotation of the rotor with respect to the stator aligns the ports and permits the liquid electrolyte to flow from the rotor chamber through the rotor port, the stator port and into the stator chamber where it mixes with the cathode mix to activate the battery. In a second preferred embodiment, resilient spheres located between the rotor and the stator seal the rotor ports initially, but are rolled out of sealing engagement when the rotor is rotated to initiate activation of the battery.