Abstract: A cell-sensing unit is applied to a memory device having a cell associated operably with a complementary pair of bit lines and a word line. The cell-sensing unit includes a current sense amplifier having a first input side adapted to be connected to the bit lines, and a first output side, and a voltage amplifier having a second input side connected to the first output side of the current sense amplifier, and a second output side. The current sense amplifier is capable of magnifying a difference between currents flowing through the bit lines during a read cycle of the cell, and generates a corresponding voltage difference at the first output side. The voltage difference is received by the voltage amplifier at the second input side, and has a magnitude sufficient to enable the voltage amplifier to generate an output signal at the second output side corresponding to data stored in the cell.

Abstract: An active metal non-aqueous electrochemical cell includes an anode selected from lithium metal and intercalated lithium compounds, an electrolyte system consisting essentially of an SO.sub.2 solvent containing an amount of electrolyte salt, and a solid liquid or gaseous cathode active material selected from a class of materials which are reduced in preference to SO.sub.2, wherein the amount of cathode material is generally limiting with respect to the desired discharge reaction.

Abstract: A primary or secondary electrochemical cell includes an anode containing lithium when in a charged state, a relatively solid gelled electrolyte system including an amount of polyacrylonitrile (PAN), an amount of solvent and plasticizer that includes .gamma.-butyrolactone (.gamma.-BL) and an amount of lithium electrolyte salt, preferably a combination of LiAsF.sub.6 and LiBF.sub.4, and a cathode having a cathode active material selected from transition metal oxides and lithium transition metal oxide intercalation compounds.