High Voltage Battery Cell, Module or Pack Having a Rolled Structure and Production Method

A high-voltage alkali battery, comprising a plurality of unit cells each comprising: (a) a cathode comprising (i) a cathode current collector; and (ii) a cathode active layer bonded to a first portion, but not a second portion, of the current collector, wherein the cathode active layer comprises a mixture of a cathode active material, a binder, a conducting additive, and a non-flowable electrolyte; (b) an anode; and (c) a separator layer, wherein the cathode, separator, and anode layer are laminated and wound into a unit cell roll with the cathode end having the second portion being protruded out and the anode end having the second portion being protruded out; wherein the unit cells are internally connected in such a manner that the second portion of the cathode of a first unit cell roll is in electronic contact with the second portion of the anode of a second unit cell roll.