One of the leading global smart device brands, OPPO, held its “What’s Next for Flash Charging?” OPPO Flash Charge Open Day recently, during which it unveiled the most recent achievements from its ongoing research into fast charge technology.

OPPO introduces a new generation of flash charging technology

Oppo Inner String Double Cell Structure

The inner string double cell structure comprises two cells inside the battery packaging bag. It introduces a layer of polymer material that will ensure that the two batteries can work independently. This, apparently, will increase the battery capacity by at least 5% year on year while also maintaining safety performance.

Safety Detection Chip

The safety detection chip comes with the ability to identify abnormal voltage drops in a battery. Paired with an AI algorithm, this can also eliminate the voltage drop caused by an impulse large load, and when a battery is damaged beyond repair, it also reminds the user to replace it. This will eliminate any danger concerning the safety problems stemming from the damaged battery.

Another battery technology introduced at the event is called sandwich safety battery. This feature uses a new type of composite polymer material as the matrix, which will ensure that the battery stays protected from the dangers of battery safety.

Safe charging in extreme cold conditions

OPPO has also explored ways to optimize fast charging technology in more extreme situations. For example, it can be difficult to charge a lithium-ion battery in very cold environments, where forcing the battery to charge can even cause it to short circuit. OPPO’s ultra-low temperature charging solution uses smart algorithms to determine the optimal battery charging temperature and increase the temperature before charging begins. Test results show that the battery can increase its temperature from -20 ° C to 10 ° C in just tens of seconds, allowing the battery to charge normally.

Oppo Smart Flash Charging Technology

Oppo’s smart charging technology can control the negative electrode potential so that the battery can maximize the charging current by regulating it dynamically. Over the years, the Chinese company has successfully reduced the generated heat almost by half, which means that now charging is even further improved.

Oppo also announced that they have started using low-voltage gallium nitride to the internal circuits of mobile phones for path management of fast charging. This saves space and reduces heat consumption and improves the current of charging duration while also offering better protection capabilities. At the Flash Charge Open Day, the company also mentioned that since the day flash charging was introduced into its devices, the company has always made sure to implant security into Oppo’s flash charging gene to deliver speed and added safety.

Other “technical” improvements have been announced. Among these, the most interesting is certainly the application of gallium nitride low voltage in the internal circuits of a smartphone (in the section dedicated to charging management). This means using smaller components and having more space and optimized consumption and an improvement in temperature management.

In 2021, OPPO launched its new project – The Flash Initiative – bringing its proprietary VOOC technology to automobiles, public spaces, and chips inside a wide variety of devices.

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