Abstract:
A battery comprising a series of cells stacked one upon the other is disclosed wherein the cells are connected by intercell connectors which assure good electrical contact between cells and proper alignment of each cell with respect to the next. The intercell connector comprises a flat section with a series of radial extensions or ears projecting beyond the edge of the flat section. In assembly the flat section is welded to one electrode of one cell and another cell is then stacked on top with the ears of the interconnector being bent upwards and welded to the other cell to interconnect the cells and accurately align them with respect to each other.
Abstract:
Springlike packing ribs integrally molded with the walls of a battery container permit a single container to accommodate elements of varying thicknesses, thus reducing the number of different sizes of containers and container molds required for battery manufacturing.
Abstract:
An emergency power supply is described comprising a switch and a low-level dropout circuit. The switch comprises a power transistor which provides power to the load from the battery and is driven by an amplifier. The low-level dropout supply circuit is a complementary bistable multivibrator which turns the switch off in going from a ''''conductive'''' state to a ''''nonconductive'''' state when the battery voltage drops to a predetermined level. There is also provided a delay-on timer which keeps the emergency lamp on for a selected period of time after external power restoration. In addition, a solid-state charger is provided to maintain a properly charged battery.
Abstract:
An electrochemical cell is disclosed having a resistive element interposed between a cell electrode and its corresponding terminal. The resistive element acts as a safety resistor and is a high resistivity material which has a high temperature coefficient of resistance. The element significantly lessens the high flash amperage current which is characteristic of some electrochemical cells, such as nickel-cadmium cells. The resistance of the element preferably has a value as determined in accordance with the equation:
WHERE Ra is the ohmic value of the element; E is the open circuit voltage of the cell; Ii is the initial flash current of the cell in the absence of the element; and Ip is the flash current of the cell with the element present in the cell.
Abstract translation:公开了一种电化学电池,其具有介于电池电极和其相应端子之间的电阻元件。 电阻元件充当安全电阻器,并且是具有高电阻温度系数的高电阻率材料。 该元素显着降低了一些电化学电池如镍镉电池的特征的高闪电安培电流。 元素的电阻优选具有根据以下等式确定的值:E E Ra = - Ip Ii WHERE Ra是元素的欧姆值; E是电池的开路电压; Ii是在没有元素的情况下电池的初始闪电电流; 并且Ip是具有存在于单元中的元件的单元的闪光电流。