Taking a cue from some smartphones that can charge wirelessly, automakers, federal researchers, and equipment manufacturers have recognized an opportunity for electric vehicles (EVs) to charge wirelessly. Wireless charging has the power to greatly increase the convenience and accessibility of EV charging for drivers. It involves transferring power via an air gap from a ground-based transmitting coil to a receiving coil fitted onto the underside of vehicles. There's no denying that wireless charging opens a lot of doors for EV innovation: buses can charge whilst passengers hop aboard, taxis can charge in taxi ranks, private owners can have cable-free domestic garages, and we could see dynamic wireless charging roads in the future.
The development of wireless charging systems for EVs is slowly picking up momentum since the standards were finalized and released in 2020. There are very few EVs currently in the market that can utilize the technology, and companies are potentially fearful to invest in the technology because there are so few EVs that can use it. But ultimately, it does make EV charging much simpler. Many automotive manufacturers are now working with their suppliers evaluating, developing, and refining wireless charging technologies. While some are aiming to offer factory-fitted wireless charging hardware, others are hoping to offer retrofits.
- Static, semi-dynamic and dynamic wireless charging
- Componentry - ground assembly (GA) and vehicle assembly (VA)
- Industry players - performance comparison, business models, and deployments
- Commercialization - cost analysis and battery downsizing for buses
- Standardization - industry status and developments