Grid assembly for a plate-shaped battery electrode of an electrochemical accumulator battery

A grid arrangement (101, 102) for a plate-shaped battery electrode (104, 105) of an electrochemical accumulator (100), having a frame (117, 118, 119, 120) and a grid (113) arranged thereon, wherein the frame (117, 118, 119, 120) comprises at least one upper frame element (120) having a connecting lug (103) of the battery electrode (104, 105) disposed on its side facing away from the grid (113), and wherein the grid (113) is at least formed by horizontal bars (21 to 25), which are bars extending substantially horizontally, and vertical bars (9 to 20), which are bars extending substantially vertically, wherein at least some of the vertical bars (9 to 20) are arranged at different angles to one another in the shape of a fan, characterized by at least one, some or all of the following a), b), c), d) features:

• a) a straight line (G), which runs through the center of gravity of the grid arrangement (101, 102) and is a parallel to the central axis (M) of the vertical bar (14) having the shortest distance to the center of gravity (S) of the grid arrangement (101, 102), passes the connecting lug (103) at a distance (D) of less than 15%, in particular less than 10%, of the connecting lug width (B), or intersects the connecting lug (103),
• b) a straight line (G) which runs through the center of gravity of the grid arrangement (101, 102) and is a parallel to the central axis (M) of the vertical bar (14) having the shortest distance to the center of gravity (S) of the grid arrangement (101, 102), intersecting the upper frame element (120) at a point (1) which is less than 15%, particularly less than 10%, of the length (L) of the upper frame element (120) away from a vertical central axis (A) of the connecting lug (103),
• c) the sum of all the angles of those vertical bars (9 to 20) which intersect both the upper as well as the lower frame element (120) of the grid arrangement (101, 102), or at least would intersect in mathematical extension, is greater than 7°, wherein the angles are defined in terms of an axis (A) extending exactly vertically,
• d) the sum of the angles of the outermost left and outermost right vertical bar (10, 20) intersecting both the upper as well as the lower frame element (120) of the grid arrangement (101, 102), or at least would intersect in mathematical extension, is greater than 7°, wherein the angles are defined in terms of an axis (A) extending exactly vertically.