Powder off prevention battery grid suitable for rolling brush process

Abstract

The invention discloses a powder off prevention battery grid suitable for a rolling brush process. The powder off prevention battery grid comprises a lug and grid bodies, wherein an active substance is coated on each grid body, a grid plane with lattices is arranged on the grid body, a bending edge is arranged around the grid plane, and a part where the bending edge and the grid plane are connected is bent. Lead powder is prevented from separating from the grid body by a bending structure during charging and discharging, thus, the lead powder is effectively prevented from being deposited at the bottom of a battery shell, the problem of pole plate short circuit caused by excessive deposition of the lead powder is avoided, the service lifetime of a storage battery is greatly prolonged, and the application safety of the storage battery is improved.

Description

technical field [0001] The invention relates to the field of battery grids, in particular to a powder-drop-proof battery grid suitable for rolling brushing technology. Background technique [0002] The battery grid is the core component of the battery. Its main function inside the battery is to conduct electricity and transmit current, and to play a skeleton support role for the active material coated on the surface of the grid. The flat grid is currently the more common battery grid. , there are grid ribs punched out by a high-speed punch on the grid. After the active material is coated on the grid, it is impossible to remove the excess coated active material on the sides of the grid by rolling brushes, because it is easy to Brush off the active material on the grid plane or fail to clean the active material on the side, so that after the battery grid is installed and used, the active material is prone to fall off during charging and discharging, eventually leading to prema...

AI Technical Summary

Problems solved by technology

[0002] The battery grid is the core component of the battery. Its main function inside the battery is to conduct electricity and transmit current, and to play a skeleton support role for the active material coated on the surface of the grid. The flat grid is currently the more common battery grid. , there are grid ribs punched out by a high-speed punch on the grid. After the active material is coated on the grid, it is impossible to remove the excess coated active material on the sides of the grid by rolling brushes, because it is easy to Brush off the active material on the grid plane or fail to clean the active material on the side, so that after the battery grid is installed and used, the active material is prone to fall off during charging and discharging, eventually leading to premature failure of the battery Or a short circuit causes damage to the battery; although some battery grids cast by gravity have a frame structure higher than the plane ribs of the grid, due to their low density, the active material on the surface cannot be tightly covered, resulting in their It is easy to be corroded by the electrolyte during use, causing premature damage to the plate and greatly shortening the service life of the battery; A rapid production process that can adapt to mass production is required. As an important process in the production of lead grids, the active material coating process not only requires the lead grid to be able to quickly and effectively brush off the excess active material around it after coating the active material, It is also necessary to ensure that during use, the active material on the grid plane will not easily fall off to the bottom of the battery box, causing deposition and short circuiting of the battery

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