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OPPO shows new generation of their VOOC technology

OPPO New VOOC Technology featured image
Image: OPPO Germany
(Post picture: © 2021 OPPO Germany)

VOOC should be familiar to every OPPO user. This is what OPPO calls its fast charging technology. At their Flash Charge Open Day 2021, they now showed how they can make this technology even safer.

OPPO held one under the motto "What's Next for Flash Charging?" Flash Charge Open Day 2021 away. At this event, new plans were presented on how to make VOOC fast charging technology safer and more efficient in the future.

"The new generation of VOOC fast charging technology offers innovations that affect the entire fast charging system, i.e. the charging adapter, the charging cable, the power management ICs (PMIC) and of course the battery."

"Whether you choose wireless or wired charging, VOOC fast charging technology meets a wide range of electronic device charging needs, even in extreme conditions."

– Jeff Zhang, chief scientist for VOOC shells at OPPO

Secure charging is OPPO's top priority

OPPO clearly lays its cards on the table. Instead of continuing to participate in the "who offers more watts" race between manufacturers, OPPO focuses on efficiency and security.

OPPO's security system for their VOOC fast charging technology has five levels, through which they want to further increase security. But OPPO does not sleep on the other levels either, they continue to research new materials, AI algorithms, charging architectures and other factors that come with it. In the following I will briefly explain the five security levels that OPPO has built into their VOOC technology.

Low impedance protection mechanism

In the event of a power system overload or other failure, this mechanism can immediately "fuse" to isolate the battery from the power supply. This then leads to improved performance, which in turn leads to increased safety when charging.

GaN switches also on board

GaN stands for gallium nitride and, to put it in layman's terms, this term is known from new chargers. GaN chargers can be much smaller than traditional chargers, but at the same time they can deliver more or the same power. OPPO is installing a gallium nitride switch here for the first time, which fulfills the same function as the conventional "silicon MOSFET switches", but requires a much smaller area. Further advantages are here with heat development. This should be further reduced by GaN and the reliability of the charging efficiency should be improved.

Internal series bicell design also on board

Roughly speaking, the stock bi-cell design helps push heat build-up further down. The security should be given unchanged here. But the new design takes up less space and can hold five with the same battery size Procent more battery capacity.

AI algorithms determine battery damage

Yes, you heard me right. OPPO's proproprietary "Battery Safety Detection Chip" can use AI algorithms to detect external damage to the battery. This measures in real time whether there are voltage drops. This is done on the basis of various scenarios and the latter then reacts accordingly. The user is informed of any damage to the battery and the system initiates additional protective measures to avoid further danger.

Composite as current collector

OPPO has developed a backup battery with its own composite structure. This has a completely new composite material as a pantograph. OPPO calls this structure "sandwich structure" - it consists of a five-layer composite made of two layers of aluminum.

Explained for laypeople: The safety of the battery is enhanced by this protective layer protecting the battery from short circuits caused by external damage, for example.

In a test by OPPO's laboratory, the new battery shows a 100-procent success rate in a test where the battery is punctured or has to endure collisions and does not lose power, let alone explode.

Smart charging is OPPO's future!

One point in particular should be OPPO's charging technology: safe. Based on the intelligent determination of different charging scenarios, the existing charging current adapts to the situation. This should reduce extraordinary battery aging and thus achieve an optimal battery life. This effect should even be noticeable for end customers.

OPPO New VOOC Technology

Image: OPPO Germany

Longer battery life thanks to new VOOC technology

We all probably know OPPO's SuperVOOC 2.0 charging technology with 65W final power. With the new, improved VOOC technology, the service life should be reduced to just 1.500 at 80 cycles (discharge-charge). Procent of the original capacity.

From 30 to 0 in 100 minutes Procent despite the same SuperVOOC 2.0 performance

Thanks to the new findings that OPPO has made in the field of fast charging, you can now continue to charge with SuperVOOC 2.0 and at 65W, while the total charging time should be reduced. With a standard 4.500mAh battery size, the charging speed should increase by up to 20 Procent can be increased. This would result in a total loading time of just 30 minutes.

Temperature is the be-all and end-all for fast charging

If the temperature is too high, fast charging technologies like to throttle down to 5W-10W. Therefore, OPPO installs a new generation of balancing techniques for charging speed and device temperature. This should make the best balance between a fast charging process and comfortable use of the smartphone possible.

Digression: fast charging in extreme conditions

Because you want to be prepared for everything, OPPO also optimizes its charging technology for extreme situations. In extreme cold it can be very difficult to charge lithium-ion batteries. In very extreme cases, this can even lead to a short circuit. OPPO's "Ultra Low Temperature Charging Solution" therefore uses algorithms to determine the optimal charging temperature of the battery, and to increase the temperature before charging begins.

Tests from our own experiments show that you can increase the temperature from minus 10 degrees to plus 20 degrees Celsius in just 10 seconds. When it reaches 10 degrees, the battery can then charge as usual.

OPPO's VOOC technology at a glance

OPPO started with VOOC in 2014 and was already concentrating on the important core aspects such as: security and efficiency as well as user-friendliness.

OPPO New VOOC Technology 2

Image: OPPO Germany

By the end of June 2021, OPPO registered over 3.000 patents in its VOOC portfolio. That's quite a lot. How much of this will of course be implemented is anyone's guess. But better secure than leave it to the competition later. More than 30 OPPO smartphones or iOTProProducts support VOOC technology and offer a good 195 million people worldwide fast, convenient and very safe charging.

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General note on articles in the "OPPOblog"

This article is in TechnikNews OPPOblog published - the very own blog for OPPO fans. OPPOblog reports independently and is not operated by the "OPPO" brand.

Dominic Lux

Dominik is 21 years old and very interested in new hardware for smartphones, as well as in the VR and AR area. He enjoys writing articles on these subjects. He has a fable for smartphones and gadgets, as well as electromobility. So he is currently busy writing in the new mobility department here TechnikNews.

Dominik has already written 121 articles and left 7 comments.

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