(JP8171901-A)      A rechargeable battery has a separator between an anode and cathode, with an electrolyte or electrolyte soln. in contact with the electrodes. At least the anode has an active material-retaining body comprising an electroconductive material and an insulating or semiconductor material able to allow an ion for battery reaction to pass through but not able to allow the active material to pass through upon charging. The active material body is at least 10% porous. Also claimed are: (i) the anode itself; and (ii) a process for forming the anode and the battery comprising: (a) applying a compsn. of the electroconductive material, the insulating or semiconductor material and a material capable of forming pores, on to a substrate, and (b) removing the pore-forming material in the applied coat to form the porous anode active material-retaining body.    USE -   In Li and Zn rechargeable batteries, for power supply applications, electric cars, for storing 'dump' power from electricity generation and portable electric devices such as video cameras, etc.    ADVANTAGE -   The anode is always highly rated and stable, and exhibits excellent battery performance while preventing the generation or growth of a dendrite upon repeated charging and discharging, contributing to long cycle life. High electric capacity and high energy density.    (US5698339-A)      A rechargeable battery has a separator between an anode and cathode, with an electrolyte or electrolyte soln. in contact with the electrodes. At least the anode has an active material-retaining body comprising an electroconductive material and an insulating or semiconductor material able to allow an ion for battery reaction to pass through but not able to allow the active material to pass through upon charging. The active material body is at least 10% porous. Also claimed are: (i) the anode itself; and (ii) a process for forming the anode and the battery comprising: (a) applying a compsn. of the electroconductive material, the insulating or semiconductor material and a material capable of forming pores, on to a substrate, and (b) removing the pore-forming material in the applied coat to form the porous anode active material-retaining body.    USE -   In Li and Zn rechargeable batteries, for power supply applications, electric cars, for storing 'dump' power from electricity generation and portable electric devices such as video cameras, etc.    ADVANTAGE -   The anode is always highly rated and stable, and exhibits excellent battery performance while preventing the generation or growth of a dendrite upon repeated charging and discharging, contributing to long cycle life. High electric capacity and high energy density.    (EP709907-B1)      A rechargeable battery has a separator between an anode and cathode, with an electrolyte or electrolyte soln. in contact with the electrodes. At least the anode has an active material-retaining body comprising an electroconductive material and an insulating or semiconductor material able to allow an ion for battery reaction to pass through but not able to allow the active material to pass through upon charging. The active material body is at least 10% porous. Also claimed are: (i) the anode itself; and (ii) a process for forming the anode and the battery comprising: (a) applying a compsn. of the electroconductive material, the insulating or semiconductor material and a material capable of forming pores, on to a substrate, and (b) removing the pore-forming material in the applied coat to form the porous anode active material-retaining body.    USE -   In Li and Zn rechargeable batteries, for power supply applications, electric cars, for storing 'dump' power from electricity generation and portable electric devices such as video cameras, etc.    ADVANTAGE -   The anode is always highly rated and stable, and exhibits excellent battery performance while preventing the generation or growth of a dendrite upon repeated charging and discharging, contributing to long cycle life. High electric capacity and high energy density.