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OwnerDetlef Ohms, Michael Kohlhase +4inventors
InventorsDetlef Ohms, Michael Kohlhase, Katja Hogrebe, Gabor Benczur-Urmossy, Willi Kitzhofer, Birgit Bange
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To improve upon an accumulator (1) in a bipolar stack configuration comprising a number of sub-cells (9) arranged in layers within a housing (2) and separated by conductive partitions (8), wherein each sub-cell (9) has a positive (10) and a negative (11) electrode and a separator (12) between the electrodes (10, 11), as well as electrolytes in contact with the electrodes, such that the stack comprised of the sub-cells (9) can be fastened easily and safely via mechanical means, it is suggested that the stack, comprised of several sub-cells layered on top of one another be held in place via a force that will keep the individual elements (8, 10, 11, 12) of the stack in contact with one another with only a mechanical tie rod (14).
An accumulator in a bipolar stack configuration having a number of cells comprised of sub-cells (9) arranged in layers within a housing (2), separated by partitions (8), wherein each sub-cell (9) is equipped with a positive (10) and a negative (11) electrode and with a separator (12) positioned between the electrodes (10, 11), as well as electrolytes that are in contact with the electrodes,
Accumulator according to one of the preceding claims, characterized in that contact plates (4, 5) are positioned adjacent to the first and last sub-cells (9) of the stack;
Accumulator according to one of the preceding claims, characterized in that pressure plates (3, 13) are positioned at and delimit the ends of the stacks comprised of sub-cells (9).
Accumulator according to one of the preceding claims, characterized in that the tie rod (14) is led through the housing (2) or the housing cover (3) and forms an electrical terminal (7) for the accumulator.
Accumulator according to one of the preceding claims, characterized in that the tie rod (14) is led through central openings in the elements that form the stack of sub-cells (9) positioned on top of one another.
Accumulator according to one of the preceding claims, characterized in that the housing is cylindrical, preferably having a circular base area.
Accumulator according to one of the preceding claims, characterized in that the accumulator is a bipolar nickel/metal hydride accumulator.
Dependencies are inferred from the claim text.