(US5952124-A)      NOVELTY - Cell comprises a housing containing an anode with 50-85 wt per cent active material and a cathode comprising MnO2, bismuth and an electrolyte, plus a separator to prevent the bismuth moving from the cathode to the anode. TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - The anode active material is Zn and the cathode is 50-80 wt. per cent MnO2 and 5-15 wt. per cent bismuth oxide based on the wt. per cent of the MnO2. The bismuth is in the form Bi(OH)-4, Bi2O3, B metal, Bi+, Bi2+ or Bi3+ and the electrolyte is 2-9 molar KOH. The cathode has 2-5 wt. per cent binder and the separator comprises a polymeric coating on a substrate of e.g. cellophane, nylon or polypropylene.    USE -   Battery cell is a rechargeable alkaline MnO2-Zn cell with improved cycle life for electric vehicles, satellites and solar energy system backups.    ADVANTAGE -   Cell has improved cycle life and can be cycled to a cut off discharge voltage less than 0.8V, with a discharge curve centred at 1.0-1.1V. DESCRIPTION OF DRAWING(S) - (2) e; (4) e; (8) interface; (10); (14,16); (20A, 20B) s.    (EP1002342-A1)      NOVELTY - Cell comprises a housing containing an anode with 50-85 wt per cent active material and a cathode comprising MnO2, bismuth and an electrolyte, plus a separator to prevent the bismuth moving from the cathode to the anode. TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - The anode active material is Zn and the cathode is 50-80 wt. per cent MnO2 and 5-15 wt. per cent bismuth oxide based on the wt. per cent of the MnO2. The bismuth is in the form Bi(OH)-4, Bi2O3, B metal, Bi+, Bi2+ or Bi3+ and the electrolyte is 2-9 molar KOH. The cathode has 2-5 wt. per cent binder and the separator comprises a polymeric coating on a substrate of e.g. cellophane, nylon or polypropylene.    USE -   Battery cell is a rechargeable alkaline MnO2-Zn cell with improved cycle life for electric vehicles, satellites and solar energy system backups.    ADVANTAGE -   Cell has improved cycle life and can be cycled to a cut off discharge voltage less than 0.8V, with a discharge curve centred at 1.0-1.1V. DESCRIPTION OF DRAWING(S) - (2) e; (4) e; (8) interface; (10); (14,16); (20A, 20B) s.    (CN1269059-A)      NOVELTY - Cell comprises a housing containing an anode with 50-85 wt per cent active material and a cathode comprising MnO2, bismuth and an electrolyte, plus a separator to prevent the bismuth moving from the cathode to the anode. TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - The anode active material is Zn and the cathode is 50-80 wt. per cent MnO2 and 5-15 wt. per cent bismuth oxide based on the wt. per cent of the MnO2. The bismuth is in the form Bi(OH)-4, Bi2O3, B metal, Bi+, Bi2+ or Bi3+ and the electrolyte is 2-9 molar KOH. The cathode has 2-5 wt. per cent binder and the separator comprises a polymeric coating on a substrate of e.g. cellophane, nylon or polypropylene.    USE -   Battery cell is a rechargeable alkaline MnO2-Zn cell with improved cycle life for electric vehicles, satellites and solar energy system backups.    ADVANTAGE -   Cell has improved cycle life and can be cycled to a cut off discharge voltage less than 0.8V, with a discharge curve centred at 1.0-1.1V. DESCRIPTION OF DRAWING(S) - (2) e; (4) e; (8) interface; (10); (14,16); (20A, 20B) s.    (TW423173-A)      NOVELTY - Cell comprises a housing containing an anode with 50-85 wt per cent active material and a cathode comprising MnO2, bismuth and an electrolyte, plus a separator to prevent the bismuth moving from the cathode to the anode. TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - The anode active material is Zn and the cathode is 50-80 wt. per cent MnO2 and 5-15 wt. per cent bismuth oxide based on the wt. per cent of the MnO2. The bismuth is in the form Bi(OH)-4, Bi2O3, B metal, Bi+, Bi2+ or Bi3+ and the electrolyte is 2-9 molar KOH. The cathode has 2-5 wt. per cent binder and the separator comprises a polymeric coating on a substrate of e.g. cellophane, nylon or polypropylene.    USE -   Battery cell is a rechargeable alkaline MnO2-Zn cell with improved cycle life for electric vehicles, satellites and solar energy system backups.    ADVANTAGE -   Cell has improved cycle life and can be cycled to a cut off discharge voltage less than 0.8V, with a discharge curve centred at 1.0-1.1V. DESCRIPTION OF DRAWING(S) - (2) e; (4) e; (8) interface; (10); (14,16); (20A, 20B) s.    (JP2001511588-W)      NOVELTY - Cell comprises a housing containing an anode with 50-85 wt per cent active material and a cathode comprising MnO2, bismuth and an electrolyte, plus a separator to prevent the bismuth moving from the cathode to the anode. TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - The anode active material is Zn and the cathode is 50-80 wt. per cent MnO2 and 5-15 wt. per cent bismuth oxide based on the wt. per cent of the MnO2. The bismuth is in the form Bi(OH)-4, Bi2O3, B metal, Bi+, Bi2+ or Bi3+ and the electrolyte is 2-9 molar KOH. The cathode has 2-5 wt. per cent binder and the separator comprises a polymeric coating on a substrate of e.g. cellophane, nylon or polypropylene.    USE -   Battery cell is a rechargeable alkaline MnO2-Zn cell with improved cycle life for electric vehicles, satellites and solar energy system backups.    ADVANTAGE -   Cell has improved cycle life and can be cycled to a cut off discharge voltage less than 0.8V, with a discharge curve centred at 1.0-1.1V. DESCRIPTION OF DRAWING(S) - (2) e; (4) e; (8) interface; (10); (14,16); (20A, 20B) s.