A lead-acid battery grid with uniform current distribution
A lead-acid battery, current uniform technology, applied in the direction of electrode carrier/collector, etc., can solve the problem of uneven current distribution on the plate, achieve the effects of reducing adverse effects, uniform heat, and improving utilization
Active Publication Date: 2020-10-30
任久东
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Problems solved by technology
[0010] Aiming at the technical problem of uneven current distribution on the upper and lower plates when the lead-acid battery is charging and discharging, the invention provides a lead-acid battery grid, which can further balance the difference in the conductivity of the upper and lower plates, so that the current on the plate can be compared uniform distribution
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[0025] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted here that the descriptions of these embodiments are used to help understand the present invention, but are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not constitute a conflict with each other.
[0026] The grid structure of the first embodiment is as attached figure 1 As shown: there is a vertical rib 3 whose upper end is connected to the upper frame 11 in the frame 1, and it starts to connect to a connection with a width equivalent to the width of the grid from its top end downwards exceeding 2 / 3 of the length of the vertical frame 12 Rib 5 constitutes a circuit through which tab 2 directly reaches the lower part of the grid. On both sides of this vertical rib...
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The invention relates to a lead-acid storage battery grid with uniform current distribution. The lead-acid storage battery grid with uniform current distribution is characterized in that: the number of ribs directly connected upward to an upper frame (11) within a frame (1) is less than the number of vertical and slant ribs (3, 4) with the upper ends connected to the upper frame (11) through the ribs, charging-discharging are carried out on the upper part of a pole plate from a tab (2) with 1 / n of the current density in the prior art, so that more current can flow to the lower part of the poleplate. The tab (2) also directly compose a circuit with the lower part of the grid through the vertical and slant ribs (3, 4) or vertical frames (12), so that electrochemical reaction is always carried out at different parts up and down the pole plate simultaneously during the charging and discharging process of the storage process, so that the current can be evenly distributed up and down the pole plate, thus being conducive to even distribution of the heat generated by rapid charging and discharging. The utilization rate of active substances at the lower part of the pole plate can be further improved. The lead-acid storage battery grid with uniform current distribution provided by the invention is most suitable for adoption by giant, large and slim and tall storage batteries in power station energy storage, submarines, forklift trucks and the like.
Description
technical field [0001] The invention belongs to the field of lead-acid batteries, in particular to grids of lead-acid batteries. . Background technique [0002] The important part of the lead-acid battery is the pole plate, and the important part of the pole plate is the grid. The charge and discharge of the lead-acid battery is mainly completed by the grid. The shape and structure of the grid is an important factor affecting the charge and discharge performance of lead-acid batteries. [0003] At present, the most widely used grid is a grid structure formed by horizontal and vertical ribs perpendicular to each other. In the process of charging and discharging, the upper part of the plate is close to the tab, and the current transmission distance is shorter than the lower part of the plate, so it is always the best When the current is passed first, the active material on the top of the electrode plate first undergoes an electrochemical reaction. The utilization rate of t...
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IPC IPC(8): H01M4/73
CPCH01M4/73Y02E60/10
Inventor 任久东
Owner 任久东