摘要:
A process and apparatus is provided for filling tubular plate positive electrodes for use in lead-acid secondary cells with lead oxide particulate material in a highly fluid slurry form wherein tubular plate positive electrode assemblies comprising a plurality of substantially lead spines aligned on a conductive bar, each spine enveloped by a porous tubular sheath, are footed prior to being filled with lead oxide particulate material in a highly fluid slurry form. The foot according to the present invention comprises a plurality of aligned projections extending from a base portion and slurry access ports penetrating the foot. Each projection engages a spine within its spine recess and is itself engaged within a tubular sheath, and each projection is provided with at least one slurry access port. Lead oxide particulate material in a highly fluid slurry form is introduced into the annular space between each spine and its corresponding tubular sheath through the slurry access ports penetrating the foot.
摘要:
A process and apparatus is provided for filling tubular plate positive electrodes for use in lead-acid secondary cells with lead oxide particulate material in a highly fluid slurry form wherein tubular plate positive electrode assemblies comprising a plurality of substantially lead spines aligned on a conductive bar, each spine enveloped by a porous tubular sheath, are footed prior to being filled with lead oxide particulate material in a highly fluid slurry form. The foot according to the present invention comprises a plurality of aligned projections extending from a base portion and slurry access ports penetrating the foot. Each projection engages a spine within its spine recess and is itself engaged within a tubular sheath, and each projection is provided with at least one slurry access port. Lead oxide particulate material in a highly fluid slurry form is introduced into the annular space between each spine and its corresponding tubular sheath through the slurry access ports penetrating the foot.
摘要:
A multilaminate material for separating electrodes of opposite polarity in cells and battery assemblies has at least one layer of flexible, microporous retaining mat bonded to at least one layer of semi-rigid, porous support material, and a microporous separator. A unitary multilaminate separator assembly is formed by sealing at least two opposite peripheral edges of two aligned sheets of multilaminate separator material to provide an electrode receiving slot. The separator assemblies allow continuous automated battery assembly in an efficient and safe manner.
摘要:
In combination with an electric storage battery having a container and a cover, and having a plurality of walls for enclosing the electrolyte and other electrochemical components of the battery, a state of charge indicating device for monitoring the concentration of the electrolyte during the charge and discharge cycles of the battery. The indicating device is made of a porous solid support and an acid concentration sensitive dye which exhibits a change in color in accordance with the acid concentration of the electrolyte. The indicating device also includes a viewport located in one of the walls of the battery for viewing the color of the dye. The color may then be correlated to a reference scale to determine the state of charge of the battery.
摘要:
A maintenance-free, lead-acid cell that is capable of achieving long cycle life in deep discharge rapid recharge applications is sealed, has positive grids formed from antimony-lead alloys containing no more than about 2 wt. % of antimony, has negative grids formed from alloys that are essentially antimony-free, has highly porous, easily wetted separator material interposed between the plates which is capable of wicking the electrolyte, and provides a sufficient void volume to facilitate gaseous oxygen transport, and has the electrolyte required for operation of the cell substantially completely absorbed in the plates and separators, with the separators not being completely saturated.