Batcure

BATCURE is a -

• Sulfation Inhibitor 
• Sulfation Remover 
• Electrolysis Retarder 
• Aerial Oxidation Inhibitor

There is no battery in the world that is 100% free from sulfation; this is because the battery

chemistry uses sulfuric acid in paste manufacturing and as an electrolyte. 

Sulfation is considered to be the number one cause for partial or complete failure of the battery performance. 

Sulfation is observed in all types/size of batteries, that is WET, FLOODED, VRLA SEALED OR GELLED batteries. In order to save the batteries from sulfation it is important to manufacture battery plates that are most resistant to sulfation.

Lead oxide is used in conventional lead battery manufacturing process. Since lead oxide contains 25% to 30% free lead (not converted to lead oxide), it is necessary to convert free lead into active material. In order to convert free lead into an active material sulphuric acid is added to lead oxide while preparing a paste for positive and negative plate. 

Conversion of free lead into active material (lead sulfate) is an important reaction/process.In order to ensure that all the free lead is converted to lead sulfate without damaging lead oxide, paste manufacturing technology plays an important role. Conversion of free lead into lead sulfated demands specific process control, drying, and curing of pasted plates. 

Quantity and SG of electrolyte to be added for paste manufacturing depends on percentage of FREE LEAD and particle size. 

Conventionally, it takes 6 to 7 days for all the free lead to convert to lead sulfate during curing and drying. The maximum permissible free lead must be less than 1% after curing and drying.

Conversion of free lead to lead sulfate results in increase of active material of paste. Therefore, at the end of curing and drying process, there are two major chemicals, lead oxide and lead sulfate in the grid paste. However, both these chemicals are electrically non conductors.

Secondly, the presence of lead sulfate as active material reduces the charge acceptance when plates are formed. It is, therefore, very important to ensure that both these chemicals are formed in a such a way that they have better charge acceptance for higher volts generation on positive and negative plates. 

Addition of BATCURE in paste manufacturing process ensures that lead sulfate so formed in the paste zone after drying/curing process has faster and better charge acceptance and builds higher negative volts. Addition of BATCURE also ensures that Lead Oxide is not excessively damaged due to exothermic reaction that takes place while adding sulfuric acid in paste preparation. 

Addition of BATCURE to negative plates gives higher negative volts (-0.25 to -0.30 volts) at the end of formation measured with Cadmium Rod Test. Paste prepared without addition of BATCURE gives lower negative plate volts (-0.18 to -0.20 volts). Lower negative plate volts means lower battery capacity, higher self discharge and pre mature capacity loss due to sulfation.

During jar formation process, the negative plates are converted to spongy pure lead, freed from sulfate and oxygen. It means negative plates are completely in a reduction stage. However, when these plates are removed from formation containers for washing and drying, these plates come in contact of atmospheric oxygen. Since negative plates are in highly reduced state (-0.25 volts), means oxygen deficient, they immediately begin to react with oxygen in the air and start absorbing oxygen. 

Absorption of oxygen by freshly formed negative plates is an exothermic reaction. This is also known as aerial oxidation of freshly formed negative plates. Absorption of oxygen at high temperature by negative plates results in the reformation of lead oxide (spongy Pb + oxygen). The lead oxide so formed is hard to convert to pure spongy lead again and leads to lower battery capacity. 

Aerial oxidation of freshly formed negative plates also reduces negative plate volts.Your efforts (time, labor, electricity, etc) for removing oxygen and sulfate by formation are lost if the negative plates are not properly protected from AERIAL OXIDATION.

PROTECTION OF FRESHLY FORMED NEGATIVE PLATES IS MOST ESSENTIAL PART OF A QUALITY BATTERY PLATES MANUFACTURING AND MUST NOT BE IGNORED.

1. Prepare a water bath in plastic tank near your formation line. To prepare a bath add 15 ml BATCURE per liter of water. For example to prepare 1000 liters bath for negative plates dipping, add 15 liter BATCURE to 1000 liter water.
2. After formation is completed wait for at least 1 hour before you start dismantling of plates.
3. Dismantled negative plates are IMMEDIATELY transferred in to a bucket having DM water. 
4. After sufficient numbers of negative plates are stocked in the bucket, take the bucket to dipping bath and immerse negative plates in the bath immediately. Leave the negative plates in the bath for minimum 36 hours. 
5. Do not wash negative plates before or after dipping and soaking. 
6. Takeout the plates from bath after 36 hours and directly allow drying in a less ventilated room at room temperature. 

DO NOT DRY IN SUN LIGHT OR UNDER THE FAN.

To maintain BATCURE concentration in bath, add 50 ml BATCURE after 1000 nos. standard size plates are immersed. New bath is recommended after 6 months.