Maybe it's "potential stock", wireless charging, but there are many problems.

Not only mobile phone manufacturers, but also more and more wireless charging devices have been gradually integrated into our life scenes. For example, some stores in Haidilao and Starbucks have begun to try the under table wireless charging board, IKEA has launched a lamp with a charging base, and the mobile wireless charger in the convenience store of the whole family. With this "demand", many third-party manufacturers have launched wireless chargers, waiting for the outbreak of the market at any time.

According to the Research Report on in-depth market analysis and investment forecast of China's wireless charging industry in 2017-2022 released by China industrial information research network, the market of mobile wireless charger and wireless charging will increase from US $3.4 billion in 2016 to US $14 billion in 2022, and the penetration rate will increase from 7% to more than 60%. At the same time, the wireless charging market will maintain more than 50% growth by 2018. According to the report on special research and development trend of China's wireless charging market in 2018-2024 released by Zhiyan consulting, the market scale of wireless charging technology for mobile phones and wearable devices will reach US $600 million and US $160 million respectively in 2018.

"Now the mobile phone design pursues appearance and feel, so glass and even ceramics become the main materials on the back of the mobile phone, which is more suitable for wireless charging than in the past. In addition, with more and more personal electronic products, wireless charging actually hopes that the desktop is more concise and beautiful, which are two aspects that promote this demand, "said one person engaged in mobile phone product design.

Of course, wireless charging seems to be a bit of a chicken's bone for people who are "hands-on" now. Because the demands of wireless charging are mostly efficient "fast charging", at the same time, the inconvenience brought by data lines and sockets is minimized. But just based on this goal, the development of wireless charger is facing a very awkward research and development stage, that is, charging speed can not replace "line charging".

At present, the power of wireless charger on the market is between 5w-10w. According to the seller, because mobile phone manufacturers use different protocols in wireless charging technology, many chargers can only reach the minimum power standard, and the charging speed can not even reach half of the line charging.

"Generally, wireless chargers from third-party manufacturers will mark fast charging and slow charging, such as supporting" apple 7.5W fast charging "and" Samsung 10W fast charging ". For other mobile phones and wireless chargers that can use wireless charging, only the lowest power can be used. " "There are more shops and restaurants purchasing wireless chargers now, and less personal purchases," said one person who is engaged in electronic equipment procurement. Plus some overheated and insensitive problems, many people have bought them for a try. At present, wireless charging is not as good as line charging. "

After the experiment, it takes about 3 and a half hours to charge an iPhone x with a third-party wireless charger, and several times the connection is disconnected. It is worth mentioning that the iPhone x is the smallest battery capacity of the current wireless charging mobile phone products.

If this situation is enlarged to the field of intelligent devices, the "non universal" of wireless chargers is more obvious. The most typical is that Apple watch wireless charging board does not support wireless charging of iPhone. Last year, Apple released airpower's propaganda map for wireless charging, and the effect of putting mobile phones, watches and Bluetooth headset boxes on a charging board looks really good, but the product has not appeared yet, which may also indicate that "the time is not right".

If the mobile wireless charging market is likely to grow at a high speed, the attitude of mobile phone manufacturers may be the biggest variable.

At present, each mobile phone manufacturer has formulated different wireless charging protocols for its own products, which results in that the wireless charging equipment cannot be "universal", and the third-party brand also needs the authorization of the mobile phone manufacturer. That's why we see that many wireless chargers can support the iPhone x fast charging protocol, but when charging Samsung phones, the power can only reach the lowest value.

According to the statistics of WPC, a wireless power industry standards organization, as of April this year, more than 60 mobile phones from 18 manufacturers have obtained Qi standard certification, with power between 5W and 10W, including Apple's 7.5W, Xiaomi's 7.5W, Huawei's 10W, Sony's 9W and Samsung's 10W. This means that wireless charging, in order to get the best wireless charging experience, consumers need to bind different mobile phone products.

In 2018, Samsung announced the launch of 15W wireless fast charging equipment, and continued to make efforts in the research and development of wireless charging equipment. Recently, Huawei's certification of a wireless charging device has been exposed, which reminds many consumers whether wireless charging is the highlight of Huawei's new machine next month. For Xiaomi, the wireless charger has already become a part of its hardware layout.

As more and more mobile phones start to support wireless charging, not only limited to the upstream and downstream industries of mobile phone manufacturers, including the third-party wireless charging suppliers, the wireless charging market will usher in new growth. In terms of technology, wireless charging equipment with more stable connection, longer transmission distance and supporting "one to many" charging will also become the main research and development direction of each family.