We frequently see the chemical aspect lithium printed on batteries and we commence to ponder how much of it was loaded into the battery. Permit us go right to the approach on how to compute its lithium content. At first we must create the adhering to knowledge: 1st is the whole equal lithium content material (ELC) for 1 mobile of the battery, 2nd is the sum of cells in the battery. To compute the ELC (in grams), ELC is equal to the battery’s energy (in ampere-several hours) multiply by .three then multiplied by the battery’s sum of cells.
Take the case of an HP Compaq 367759-001 battery with ten.8V, 8800 mAh, Li-ion technical specification as an example.
Let us get started by computing the ELC using the formula declared before. We know the electricity score to be 8800 mAh (milliamps) and we ought to convert it to Ah (amp several hours) to implement our formula and we have eight.eight 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 eight.eight x .3 equals two.sixty four grams.
Moreover, we are essential to set up the sum of cells from our decided on battery. The battery’s voltage was offered at 10.8V, we ought to divide that by the reduced voltage of a single mobile then we get the sum of cells in sequence as a consequence. Subsequent is to divide the battery’s given capability (8800 mAh) by the nominal capacity of one cell 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 final results. Of all the cells in HP 367759-001, the variety 18650 is regularly employed. It has a common reduced voltage of 3.6V and 2200 mAh nominal capability. We are now all set to compute the sum of cells in the HP Compaq 367759-001 battery with this: (8800 mAh/2200 mAh) x (10.eight volts/3.six volts) equals 12 cells.
To conclude our endeavor to find the overall ELC in HP Compaq 367759-001 battery, we need to do the subsequent computation. We have the information for one particular cell’s ELC at 2.sixty four grams and the sum of cells in the battery is twelve cells. And lastly, compute the whole equivalent lithium load of the battery by doing this calculation: 2.64g x twelve = 31.sixty eight grams.