SU112833A1 - Lead battery recovery method - Google Patents

Description

In battery factories and car repair bases, lead batteries are used to recover the lead, which is that after disassembling the blocks, the active mass of the positive electrodes is separated from the grids, ground, the slurry, the active mass of the negative plates is added to the resulting powder, and various binders — bitumen, collodion, naphthalene, nitrolac, etc. B. All this is stirred on the working electrolyte to a pasty state and spread the resulting paste on the grid. Then, the reconstructed battery plates are pressed, dried, assembled into blocks and into battery vessels and charged.

The proposed method is more perfect in comparison with the known methods of this kind, since it provides an increase in the service life of batteries.

This is achieved by using the active mass of positive plates to make a paste.

in its pure form, without sludge, without a mass of negative plates and extraneous bonding. After pressing, the plates are oiled again and pressed again.

The absence of extraneous bonding materials leads to an improvement in the quality of the electrodes, since in this case the battery will give full power. In addition, the restoration process is greatly simplified, because the use of old active materials in their pure form eliminates the need to form the recovered batteries and allows them to be limited to a single charge at a normal charge current, thus speeding up the introduction of the recovered battery. operation.

The proposed method for restoring lead batteries is as follows.

The used accumulator is precharged for 4-5 hours before disassembling.

After disassembling the blocks, the active mass of the positive electrodes is separated from the gratings and, in its pure form (without sludge and without a mass of negative plates and extraneous binders), is subjected to grinding. The resulting powder is stirred on the working electrolyte to a pasty state and spread the paste on the grid.

After that, the positive nlastins are pressed, co-coated again and pressed again. Negative plates with swollen, due to long-term operation, active mass are restored — without removing the mass from the grids, by crimping the plates with canvas liners. Reconstituted negative plates are collected with positive plates in a block.

The assembled battery is subjected to a single charge at normal current.

Subject invention

Claims (3)

1. A method of reducing lead batteries. that after disassembling the blocks, the active mass of the positive electrodes is separated from the gratings, ground, stirred in the working electrolyte to a pasty state, smeared on the grate paste, pressed, dried and after assembling the battery is charged, in order to increase battery life, to make a paste, the active mass of positive plates is used in its pure form — without sludge, without a mass of negative plates and extraneous binders — and after pressing the plate is again lubricated and reapplied essuyut. 2. A method according to claim 1, characterized in that the spent battery is precharged for 4-5 hours before disassembly, the negative plates are pressed with canvas linings and, after assembly with positive plates, the battery is charged. 3. Method zo nn. 1 and 2, characterized in that the assembled battery is subjected to a single charge at a normal current value.