Abstract: An electrochemical cell casing may be made from a non-conducting material. A conducting area may be formed on the casing. For example the conductive area may include a charge collector and/or a link and/or a terminal. The conducting area may be formed for example by coatings and/or deposits and/or molded interconnect device technology and/or multicomponent molding. An electrochemical cell may be modular. The cell may have interlocking features for stacking into a compound battery. An electrochemical cell may have an arbitrary shape, for instance prismatic. The cell may be flexible. The cell may fit into a standard battery receptacle.

Abstract: A steering tool including an internal tube disposed inside an external tube, the internal and external tubes being arranged for longitudinal axial movement relative to one another, wherein a distal end of the internal tube is fixedly joined to a distal end of the external tube, and at least one of the internal and external tubes is slotted near the distal end thereof, and wherein the longitudinal axial movement causes bending of the distal ends of the tubes.