This is how Oppo keeps Find X5 Pro’s battery healthy and cool

Not only the battery life of a smartphone, but also how long the capacity remains available is important in the context of sustainability. Due to their ever-increasing charge capacity, lithium batteries are increasingly being tested. That’s why Oppo has equipped the Find X5 Pro with some new functions so that two 2500mAh batteries can be charged with 80W, but the battery also lasts a long time.

Avoid dead ions

The charge and discharge process of a lithium battery can be thought of as the movement of charged lithium particles between positive and negative electrodes. Due to overloading or repeated charging, these ions are sometimes no longer able to return to the positive electrode. This immobilization causes a decrease in capacity.

The goal is therefore to avoid dead ions and retain as many active ions as possible to keep capacitance at its maximum. The voltage at the anode is a good indicator, and by monitoring this, the charge current can be adjusted to minimize the formation of inactive lithium ions.

The battery is monitored by the Battery Health Engine, which is based on two technologies and its own management chip. The Intelligent Battery Health Algorithm monitors the voltage at the negative electrodes of the battery and dynamically adjusts the charging current.

So 80W SuperVOOC doesn’t mean continuous charging with 80 watts, but means that maximum power is only provided when needed. Depending on the state of charge, charging is fast or slow. When the battery is almost full, the charging process slows down to avoid overcharging and overloading.

Battery Recovery Technology

Battery Recovery Technology consists of an enhanced electrolyte, the liquid in which electrons move. This environment ensures that the electrodes are constantly renewed during charging and discharging. For this, a layer is formed in the electrolyte as a result of the reaction with a small amount of polar solvent. This Solid Electrolyte Interface protects the electrodes against strong solvent so conductivity remains better.

Together, this results in a battery with 80 percent of its original capacity after 1,600 charge cycles, according to Oppo. This will be twice the current values.

Steam, Graphite and Ceramic

Of course, a lot of heat is also released when charging with 80 watts. Therefore, temperature management in the form of hardware and software is required. Oppo uses multiple sensors to monitor the temperature of the battery and chipset. A steam room covering both parts distributes the heat over a larger surface. In addition, heat is transferred to the conductive ceramic support through two layers of graphite.

With the increasing demand for lithium batteries for smartphones, laptops and even cars, this innovation is a good step towards lasting longer with these batteries. It will be several years before superfast batteries based on aluminum ions or batteries made from non-explosive vegetable carbon become commonplace.

Source: Oppo

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