摘要:
A seal tab consisting of an acrylic adhesive applied to a biaxially-oriented three-ply synthetic paper of polypropylene is used as a sealing means for metal-air electrochemical cells, and batteries constructed thereof. The seal tabs prevent loss of rate capability and capacity due to interactions with the surrounding environment prior to the placement into service of metal air cells, yet without so isolating the cells such that the initial open circuit voltage is deemed unacceptable by the end user. Additionally, the seal tab, as provided, is easily and cleanly removed, which enhances the cell's consumer appeal.
摘要:
A button cell having an air cathode assembly wherein grooves are constructed between the cathode and cell container to provide a gas diffusion passage from a port extending through the container to the face of the air cathode.
摘要:
An improved metal-oxygen button cell having a thermoplastic sealing annular ring placed between the cathode assembly and the grommet is provided. The cell basically is comprised of the following components: a conductive metal can, a cathode assembly in the can, a conductive metal cover, an anode material in the cover, a separator between the cathode assembly and anode material, a grommet and a thermoplastic sealing annular ring.
摘要:
A metal current collecting substrate for an air cathode in an electrochemical metal air cell is provided for, wherein the substrate is hardened by one of the steps of sandblasting, shotblasting, plastic deformation of the substrate below the recrystallization temperature range of the metal thereof, and heating the substrate to above the transformation temperature of the metal thereof followed by quenching the substrate below the transformation temperature of the metal thereof. Catalytically active materials, most preferably a mixture of carbon and manganese dioxide, are pressed or otherwise disposed upon the hardened substrate. The substrate is capable of being connected to electrical circuitry. Most preferably, the substrate is a metal screen that has been hardened, roughened and pitted by sandblasting before the catalytically active materials are disposed thereupon, and before the substrate is incorporated into an electrochemical metal air cell.
摘要:
A metal current collecting substrate for an air cathode in an electrochemical metal air cell is provided for, wherein the substrate is hardened by one of the steps of sandblasting, shotblasting, plastic deformation of the substrate below the recrystallization temperature range of the metal thereof, and heating the substrate to above the transformation temperature of the metal thereof followed by quenching the substrate below the transformation temperature of the metal thereof. Catalytically active materials, most preferably a mixture of carbon and manganese dioxide, are pressed or otherwise disposed upon the hardened substrate. The substrate is capable of being connected to electrical circuitry. Most preferably, the substrate is a metal screen that has been hardened, roughened and pitted by sandblasting before the catalytically active materials are disposed thereupon, and before the substrate is incorporated into an electrochemical metal air cell.
摘要:
A metal current collecting substrate for an air cathode in an electrochemical metal air cell is provided for, wherein the substrate is hardened by one of the steps of sandblasting, shotblasting, plastic deformation of the substrate below the recrystallization temperature range of the metal thereof, and heating the substrate to above the transformation temperature of the metal thereof followed by quenching the substrate below the transformation temperature of the metal thereof. Catalytically active materials, most preferably a mixture of carbon and manganese dioxide, are pressed or otherwise disposed upon the hardened substrate. The substrate is capable of being connected to electrical circuitry. Most preferably, the substrate is a metal screen that has been hardened, roughened and pitted by sandblasting before the catalytically active materials are disposed thereupon, and before the substrate is incorporated into an electrochemical metal air cell.
摘要:
A metal current collecting substrate for an air cathode in an electrochemical metal air cell is provided for, wherein the substrate is hardened by one of the steps of sandblasting, shotblasting, plastic deformation of the substrate below the recrystallization temperature range of the metal thereof, and heating the substrate to above the transformation temperature of the metal thereof followed by quenching the substrate below the transformation temperature of the metal thereof. Catalytically active materials, most preferably a mixture of carbon and manganese dioxide, are pressed or otherwise disposed upon the hardened substrate. The substrate is capable of being connected to electrical circuitry. Most preferably, the substrate is a metal screen that has been hardened, roughened and pitted by sandblasting before the catalytically active materials are disposed thereupon, and before the substrate is incorporated into an electrochemical metal air cell.
摘要:
This invention pertains to alkaline electrochemical cells, typically to metal-air cells of the button-type. Non-reactive elements of cells of the invention are thinner than corresponding non-reactive elements of prior art cells. Such elements can be made thinner because of improved structures of such elements. The anode can is made from a metal strip structure having a higher steel content. The cathode can has a modified temper, which improves relative stiffness and rigidity while retaining sufficient ductility. The seal disposed between the anode can and the cathode can is made thinner. Structure of the corner of the cathode can between the bottom and the side wall is improved. By so reducing the thicknesses of non-reactive elements of the cell, and thus the volume occupied by such non-reactive elements, the fraction of the cell devoted to holding electrochemically reactive anode material therein is increased, with corresponding increase in the milliampere hour capacity of the cell.
摘要:
This invention pertains to alkaline electrochemical cells, typically to metal-air cells of the button-type. Non-reactive elements of cells of the invention are thinner than corresponding non-reactive elements of prior art cells. Such elements can be made thinner because of improved structures of such elements. The anode can is made from a metal strip structure having a higher steel content. The cathode can has a modified temper, which improves relative stiffness and rigidity while retaining sufficient ductility. The seal disposed between the anode can and the cathode can is made thinner. Structure of the corner of the cathode can between the bottom and the side wall is improved. By so reducing the thicknesses of non-non-reactive elements of the cell, and thus the volume occupied by such non-reactive elements, the fraction of the cell devoted to holding electrochemically reactive anode material therein is increased, with corresponding increase in the milliampere hour capacity of the cell.
摘要:
Rechargeable battery assemblies and methods of constructing rechargeable battery assemblies are provided. Rechargeable battery assemblies can include a storage cell and receive circuitry comprising a receive coil operatively connected to receive control circuitry, the receive coil configured to receive inductively coupled current, the receive control circuitry configured to rectify the current and communicate charging power to the storage cell, the coil wound around a shield/core comprising magnetically permeable material, and the shield/core disposed around the storage cell. Methods of constructing rechargeable battery assemblies can include disposing a shield/core comprising magnetically permeable material around a storage cell; winding a receive coil around the shield/core; and providing the receive coil in operative connection with receive control circuitry and the storage cell, the receive coil configured to receive inductively coupled current, and the receive control circuitry configured to rectify the current and communicate charging power to the storage cell.