We usually see the chemical element lithium printed on batteries and we get started to question how a lot of it was loaded into the battery. Allow us go directly to the method on how to compute its lithium content. Originally we should establish the adhering to knowledge: 1st is the whole equal lithium content material (ELC) for one particular cell of the battery, second is the sum of cells in the battery. To compute the ELC (in grams), ELC is equivalent to the battery’s energy (in ampere-hours) multiply by .3 then multiplied by the battery’s sum of cells.
Get the circumstance of an HP Compaq 367759-001 battery with ten.8V, 8800 mAh, Li-ion technical specification as an illustration.
Enable us start by computing the ELC using the formulation declared earlier. We know the power rating to be 8800 mAh (milliamps) and we need to convert it to Ah (amp several hours) to utilize our method and we have 8.8 Ah (8800 mAh equals 8.eight Ah). And so we are now all set to compute the HP Compaq 367759-001 battery one mobile ELC which is 8.8 x .3 equals two.64 grams.
Additionally, we are needed to establish the sum of cells from our decided on battery. The battery’s voltage was offered at 10.8V, we must divide that by the lower voltage of one mobile then we get the sum of cells in series as a consequence. Following is to divide the battery’s presented potential (8800 mAh) by the nominal capability of 1 mobile and we get the resultant sum of cells in parallel. Now we can compute the sum of cell in the battery by multiplying the sequence and parallel results. Of all the cells in HP 367759-001, the amount 18650 is often used. Vapcell 18650 Battery has a common reduced voltage of three.6V and 2200 mAh nominal capability. We are now ready to compute the sum of cells in the HP Compaq 367759-001 battery with this: (8800 mAh/2200 mAh) x (10.8 volts/3.six volts) equals 12 cells.
To conclude our endeavor to find the total ELC in HP Compaq 367759-001 battery, we need to have to do the subsequent computation. We have the info for 1 cell’s ELC at 2.sixty four grams and the sum of cells in the battery is 12 cells. Lastly, compute the complete equal lithium load of the battery by executing this calculation: two.64g x twelve = 31.sixty eight grams.