Abstract: The disclosed embodiments provide a lithium-polymer battery cell. The lithium-polymer battery cell includes an anode and a cathode containing lithium cobalt oxide particles doped with a doping agent. The lithium-polymer battery cell also includes a pouch enclosing the anode and the cathode, wherein the pouch is flexible. The cathode may allow a charge voltage of the lithium-polymer battery cell to be greater than 4.25V.

Abstract: The disclosed embodiments provide a lithium-polymer battery cell. The lithium-polymer battery cell includes an anode and a cathode containing lithium cobalt oxide particles doped with a doping agent. The lithium-polymer battery cell also includes a pouch enclosing the anode and the cathode, wherein the pouch is flexible. The cathode may allow a charge voltage of the lithium-polymer battery cell to be greater than 4.25V.

Abstract: A rechargeable electrochemical cell is provided having a pressure-responsive apparatus for determining a charge termination point. In particular, a reversible pressure-responsive switch may be disposed in a cap at the open end of a rechargeable metal hydride cell. The reversible pressure-responsive switch may also contain a vent system for releasing the cell internal pressure. Additionally, a rechargeable cell is used combination with a charging source that can supply constant voltage, constant current, alternating current, or voltage that varies between a minimum threshold and a maximum threshold. Components of the switch are preferably made of a material that facilitates predictable switch activity.

Abstract: Provided are alternative fabrication methods and compositions for an electrochemical cell. The methods and compositions of the present invention are particularly, though not exclusively, applicable to the manufacture of polymer-cased lithium-ion secondary battery cells. Briefly, the present invention provides an electrochemical cell fabrication process wherein a PVDF-based binder specifically selected for its physical and chemical properties, in particular, it's high crystallinity, is coated on a porous separator material to form a porous separator. The high crystallinity PVDF of the binder results in improved cell structure and performance.

Abstract: Provided are alternative fabrication methods and compositions for an electrochemical cell. The methods and compositions of the present invention are particularly, though not exclusively, applicable to the manufacture of polymer-cased lithium-ion secondary battery cells. Briefly, the present invention provides an electrochemical cell fabrication process wherein a PVDF-based binder specifically selected for its physical and chemical properties, in particular, its high crystallinity, is coated on a porous separator material to form a porous separator. The high crystallinity PVDF of the binder results in improved cell structure and performance.