Development Status and Application Research of Wireless Charging Technology

As the demand for convenience and flexibility in modern electronic devices and industrial systems continues to grow, wireless charging technology has become one of the key solutions to the limitations of traditional wired charging. This technology has demonstrated broad application prospects in various fields such as consumer electronics, industrial automation, and medical devices. This paper systematically reviews the latest developments in wireless charging technology, providing a detailed analysis of the fundamental principles, advantages and disadvantages, and application scenarios of different wireless charging methods, including electromagnetic induction, electric field coupling, magnetic resonance, and radio wave methods. To address the technical challenges encountered in long-distance wireless charging, the article explores optimized solutions such as metasurface designs and relay coils. The article also discusses the crucial roles of frequency modulation technology and clean energy harvesting in enhancing wireless power transmission efficiency. Furthermore, the article delves into the practical applications and development trends of wireless charging technology in areas like consumer electronics and industrial applications.