Let’s review the development history of wireless charging: the first wireless charging mobile phone, wireless charging organization, standards, what are the representative products, and who is the first wireless charging mobile phone in China?
In 1978, American George Bogle set a precedent for wireless charging of electric cars.
In 1994, Japan’s Murata Manufacturing Company announced the realization of “Magnetic Coupling Resonance.”
In 2006, the Massachusetts Institute of Technology (MIT) successfully achieved a 2-meter transmission test.
Although there are many technologies that can achieve wireless charging applications, there are four main technologies that are more mature at this stage: electromagnetic induction, electromagnetic resonance, electric field coupling, and radio wave.
There are two technologies that have been widely recognized in mobile phones and other products: electromagnetic induction and electromagnetic resonance. Around these technologies, three wireless charging association alliances have been formed.
WPC (Qi standard)
On December 17, 2008, the Wireless Power Consortium (Wireless Power Consortium) was established, and the 1.0 version of the standard was promulgated in March 2010. The logo of the Wireless Power Consortium is “Qi”, and Qi uses electromagnetic induction technology.
Different brands of products can be charged with Qi wireless chargers as long as they have the Qi logo, which solves the problem of “versatility”.
As of 18th 2018, there are 612 members from home and abroad. Including Philips, HTC, Nokia, Samsung, Sony Ericsson, Texas Instruments, HTC, Huawei, MediaTek, and other well-known companies. In 2017, Apple also joined WPC.
Early representative products of the Qi standard include Nokia Lumia 920, Nokia Lumia 820, Google Nexus 4, and so on. Qi is the industry’s earliest established wireless charging standard with the widest and most widespread global distribution.
Established in 2012, A4WP is the abbreviation of Alliance for Wireless Power standard, created by the wireless charging alliance jointly created by Qualcomm, South Korea’s Samsung, and Powermat.
Using electromagnetic resonance technology, there are currently more than 40 members, Intel, MediaTek, LG, Dell, and so on.
Established in 2012, the full name is the Power Matters Alliance standard. It was initiated by Duracell Powermat, a joint venture between Procter & Gamble and Powermat.
At present, there are more than 70 members, Samsung, HTC, LG, Huawei, Starbucks, using the same electromagnetic induction technology as Qi.
Of course, manufacturers will not hang themselves on a tree. Several agreements will join each other to share risks. On January 6, 2015, A4WP and PMA announced that they were merged into one, and were renamed AirFuel Alliance Alliance (AFA), and the three major organizations became two.
The first wireless charging mobile phone: PALM
On January 9, 2009, Palm announced its new generation operating system webOS, and its first mobile phone Palm Pre at CES.
This is the world’s first smartphone that supports wireless charging, so this phone did not adopt the Qi wireless charging standard that was just released at that time.
To experience wireless charging, you need to replace the dedicated back cover and PalmTouchstone wireless charger. With a charging power of 5w, it takes one hour and forty minutes to fill the PalmPre1150mAh battery.
In 2010, Palm released the Palm Pre Plus with little improvement, and Apple released the iPhone 4, and the glory of Palm was completely overshadowed by Apple.
In addition to this wireless charging mobile phone, Palm is more well-known for its PDA products and the web OS borrowed from IOS. These contents will be described in the development history of Palm, so stay tuned.
The first Qi protocol wireless charging mobile phone
On August 8, 2011, Japanese operators NTT Docomo and Sharp released the smartphone SH-13C. The color scheme still maintains the bold style of Japanese mobile phones.
This is the world’s first wireless charging mobile phone that supports the Qi standard protocol, but it was born in Japan, which is closed and locked. In the history of mobile phones, Japanese companies must mention that every link in the mobile phone chain has Japanese companies. Participating, and all walking ahead, the Japanese style of studying technology behind closed doors deserves our praise and reflection.
Sharp phones, like many Japanese companies, are stubbornly entertaining themselves in their own country.
On October 30, 2012, Google launched the Nexus 4, which is the fourth Android smartphone under the Nexus brand. It is designed and manufactured by LG Electronics and is equipped with a Qualcomm Snapdragon S4 Pro processor.
This phone supports wireless charging, and the charging technology used in the Nexus4 base is the internationally accepted Qi wireless charging standard.
Google’s Nexus series phones are manufactured by other companies. Nexus One is HTC, Nexus S is Samsung, Galaxy Nexus is Samsung, Nexus 4 is LG, Nexus 5 is LG, Nexus 6 is Motorola, Nexus 5X is LG, Nexus 6P It’s Huawei, and Nexus 7 is ASUS.
In November 2012, Nokia released the Lumia920. Competitors during the same period were iPhone5 and Samsung S3.
Lumia920 is the first mobile phone equipped with Windows Phone 8 system. It is the industry’s first smartphone equipped with optical image stabilization components. It is Nokia’s first batch of smartphones with a wireless charging function, and it adopts the Qi international wireless charging standard.
The Lumia 810 listed at the same time also supports wireless charging, as well as Lumia830, Lumia925, Lumia928, Lumia929, Lumia930, Lumia1020, Lumia1520, 8Sirocco, and so on.
One year after the release of the Lumia 920, Nokia’s mobile phone business was officially incorporated under Microsoft’s command. Following this was the strategic adjustment of Microsoft’s “de-Nokiaization” strategy, and Nokia began to decline.
HTC Droid DNA
On October 17, 2012, HTC launched a new phone. The customized version of Japanese and American carriers is called: HTC Droid DNA. The domestic version is called HTC Butterfly. The model is X920e. Due to differences in various regions, only the US version is supported. Wireless charging, including the later HTC 8X (US version). HTC Droid DNA was the only smartphone with a 1080P resolution on the market at that time.
Wireless charging phones from other manufacturers
On September 13, 2017, iPhone8, Plus, and iPhone X were released. Just after Apple joined the Qi Standards Association, it released three devices that support wireless charging. With Apple’s appeal, wireless charging began to enter the public’s field of vision. Multi-vendor adoption.
So the question is, who is the first mobile phone equipped with wireless charging among domestic mobile phones? Many people’s first impression is Xiaomi, but no, LeEco? Cool? Huawei? hammer? OnePlus? Is it a copycat manufacturer?
In fact, it is Gionee that has passed away. The Gionee M7Plus released on November 26, 2017, officially claims to have 14W of power, which is more than 4 months earlier than Xiaomi. This is Gionee exhausted its life to release the machine, the official wireless charger has never been on the market and soon fell into a crisis of bankruptcy.
After that, the wireless charging camp began to grow: On February 26, 2018, Sony Xperia XZ2 was released. On March 27, 2018, Xiaomi MIX 2S was released. On May 15, 2018, JMGO R1 was released.
On October 16, 2018, Huawei Mate 20 Pro was released, which not only supports 15W wireless charging but also innovatively released 5W reverse wireless charging technology.
On September 24, 2019, Xiaomi 9pro once again set a double record, supporting 30W wireless flash charging and 10W wireless reverse charging.
On April 13, 2020, OPPO Ace2 was released, which increased the wireless charging power to 40W.
On July 15, 2020, OPPO held a special online press conference. In addition to the release of 120W wired charging, it also made 65W wireless charging. It took 11 years to change the power from 5 watts to 65 watts today.