China's wireless charging industry is developing steadily, and its application tends to be diversifi

First. Overview of Wireless charging

Wireless charging technology, also known as non-contact charging, is the use of near-field induction, that is, through electromagnetic induction, magnetic resonance, electromagnetic radiation and other principles, to achieve the transmission of electric energy from the power supply equipment to the electrical device technology. Wireless charging technology originates from radio energy transmission technology. The mainstream charging technology includes electromagnetic induction, radio wave and resonance technology, among which electromagnetic induction is the most important application scheme.

Wireless charging has four advantages, such as strong water resistance, avoiding terminal wear, convenience and reducing the clutter of visible lines. It is expected that after gradually breaking through the technical problems of charging efficiency, cost and compatibility, wireless charging will be widely used in the field of mobile electronic devices.

Second, wireless charging industry chain

1. Overview of industry chain

Wireless charging includes two parts: transmitter and receiver, and the upstream and downstream industry chain includes chips, magnetic materials, transmission coils, module manufacturing and system integration. Applications include smart phones, cars, smart wearable, smart home and other fields.

2. Analysis of the lower reaches of the industry chain.

At present, the most widely used and mature market for wireless charging is consumer electronics such as smartphones, followed by the automotive industry. From the perspective of the smartphone industry, in recent years, China's smartphone market has become saturated, shipments have been declining, and shipments have rebounded slightly in 2021. According to IDC, China shipped 329.3 million smartphones in 2021, including 279 million Android phones and 50.3 million Apple phones.

As an excellent wireless charging application scene, vehicle wireless charging does not need to plug in and unplug charging lines frequently, so it is a sharp tool to increase driving safety and improve the quality of life of car owners, and greatly improves the experience of mobile phone use and charging in the car. China has a huge car consumer market, with sales of 26.275 million vehicles in 2021, up 3.8 per cent from a year earlier, according to the Ministry of Industry and Information Technology. 6.509 million cars were sold from January to March in 2022.

Third. Current situation of wireless charging industry

1. Current market situation

At present, the selection of soft magnetic materials in wireless charging industry, including ferrites (mn-Zn ferrites, Ni-Zn ferrites), amorphous and nanocrystals are used. Ferrite is the mainstream at the transmitter, and mn-Zn power ferrite is generally selected. The receiving end gradually permeates amorphous and nanocrystalline in the field of consumer electronics, which requires high dimensional accuracy of soft magnetic materials, and the high power is still dominated by ferrite. It is estimated that the global demand for wireless charging transmitter and receiver will be 800 million and 2 billion respectively in 2025.

With the iteration of technology and the change of consumer demand, the charging demand of electronic products gradually add technology, scene and other diversity characteristics, wireless charging technology arises at the historic moment. Wireless charging technology does not need to match the charging Jack model of consumer electronics, is easy to use, greatly meets the needs of consumers, and the market scale will continue to expand steadily. According to statistics, China's wireless charging market reached 8.55 billion yuan in 2021, an increase of 10.6% over the same period last year.

2. Market segmentation

Mobile phone products are still the largest segment of the wireless charging industry. The market size of wireless charging for mobile phones in 2021 is about 6.87 billion yuan, an increase of 9.6% over the same period last year. With the application of wireless charging in mobile phones becoming more and more popular, wireless charging is also gradually rising in other terminal applications.

As the "post-90s" have gradually become the main force of automobile consumption, young consumers have relatively high requirements for mobile phone configuration and personalization, so the penetration rate of vehicle wireless charging function is increasing, from 2.1% to 19.8% from 2018 to 2021. Among them, the penetration rate of vehicle wireless charging function of joint venture brand increased from 1.5% to 15.2%, and that of independent brand increased from 3.1% to 26.4%.