How to effectively renovate the battery

Battery renovation refers to the lead acid battery cannot be used because of the capacity, through the repair equipment cannot be repaired, the battery needs to be rehydrated, desulfurization, repair softening, open the cover for plate, polishing and other battery capacity recovery, to achieve the purpose of reuse.

Battery refurbishment technology includes plate replacement, housing replacement, pole repair, shell welding, plate welding, broken-hole perforation repair, and battery opening.

Maintenance free 10AH-28AH battery

Replacement method: first use the electric drill to drill the battery positive and negative column resin glue. The bottom terminal and terminal are melted with a soldering iron and the terminal is taken out.

Use a hacksaw to saw along the gap between the upper and lower casings of the battery. (Be careful not to damage the internal plate of the battery)

Cut the battery inside to connect the bridge and pull out the internal plate.

Install the old plates into a new battery case, load the battery plates in the order of removal, and solder.

Glue - Glue - Cap - Cure - Upper "O" ring - Solder terminal - Bottom glue - Curing - Color paste - Curing, in order.

5.1, required tools: workbench, balance or electronic scale: range 2kg (accuracy ± 1g), with glue injection equipment, stir bar

5.2, the main raw and auxiliary materials battery cover, epoxy resin A, B component glue (A is 2314 resin B is a curing agent), color plastic (that is, NDR colorant and curing agent), copper terminals, O-rings.

5.3 injection molding, curing process parameters

5.4 The ratio of the size of the cover, the primer, the color glue, the epoxy resin A component, and the B component A: B=2:1.

5.5 With good glue use time ≤ 10min.

5.6 Battery curing time after injection: temperature is above 25 °C, curing time is ≥12h, below 25°C below 15°C ≥16~20h, below 15°C≥24h (specified by the battery of the oven).

5.7 first take A glue, then take B glue, A and B components are accurately weighed according to the ratio of 2:1, the primary dosage is not more than 500g, and stir with a special stirring rod clockwise, the mixing time is 2~3 minutes (depending on the specific Depending on the situation, the resin can be officially injected without bubbles.

5.8 Place the reverse side of the battery on the backing plate of the work surface, first note 5 cross-bridge slots, and then cover the perimeter of the cover. The amount of glue injected is preferably less than 1 mm of the injection slot. Prevent excessive or too little glue injection and cause glue overflow and battery leakage.

5.9 When glue injection, it is strictly forbidden to use super time and hot glue.

1 Reverse the battery on the battery cover and press it tightly to make it tight.

2 When the cover is closed, be careful to loosen the protective sheet or seal the plastic film. If it should be repaired in time, if it is found that there is glue overflow, clean it with a clean cloth.

When the 3 sealant is applied, it should be handled gently and the surface of the battery is not allowed to be scratched.

4 When sealing the glue, be careful to mix the battery cover and terminal of different manufacturers.

5 The battery after sealing is strictly prohibited to move, and it will be naturally solidified or dried.

6 Turn the cured battery over and check for any spillage. If it is necessary to clean it with a special tool, drain the battery in order (terminal to terminal).

7 Install the “O” ring: evenly apply the “O” ring to the resin glue, put the “O” ring on the positive and negative poles with the pliers, and place the “O” ring with special tools. In place, the pressure is tight.

8 Welded copper terminal

a. The copper terminal is aligned in the direction of the process requirements, and the pole, the solder wire and the copper terminal are welded firmly by the electric iron. b. Care should be taken during soldering to prevent solder from dripping on the surface of the copper terminal. Be careful to burn the battery cover and copper terminal plating.

C. Care should be taken when welding to prevent soldering or soldering the terminal

9 Primer: The battery with the copper terminal soldered will be injected into the square slot of the positive and negative terminals with the resin glue. The injection amount should be 2mm below the battery cover, and it should be naturally solidified or quickly dried in the oven.

10 Note terminal color glue, the positive end of the cured battery is filled with red glue, and the negative end is filled with black rubber or blue color glue. The amount of glue injected is flush with the battery cover or slightly lower.

11 The terminal color glue must be smooth and flat. Check whether there are air bubbles after filling the glue. If so, pick it up with a steel needle in time.

12 After the color glue is finished, the battery should be protected from dust and water, so as to prevent the appearance quality.

13 Completely complete the injection and curing of qualified batteries, should be marked on the battery cover according to the team. After passing the inspection, it can be transferred to the next process.

14 Glue preparations should be accurate, and the electronic scale used should be corrected regularly.

15 The glue must be used up in 10 minutes. It is forbidden to use hot glue.

17 sealed batteries are not allowed to have a series of liquid leakage accidents.

18 The color adhesive injection should be smooth and smooth.

19 Copper terminals are placed in place, the welding is firm, flat, not allowed to skew. The terminal surface is smooth, no hanging tin and burn coating phenomenon, no virtual welding, false welding phenomenon.

20 Before using the color glue, stir it evenly before mixing.

After the curing is completed, the charging is started. Wrap the lithium battery with the intersection of one layer of waste newspaper, put the packaged battery in the freezer of the refrigerator and let it stand for three days. It can be naturally cooled for two days after being taken out.

The page contains the contents of the machine translation.