RE: Apple rumor25 Mar 2022 21:06
Did anyone look through the Apple patent? Supercaps are mentioned.
https://patents.justia.com/patent/20220079521
Tag 10 may include one or more energy storage devices 24. Energy storage devices 24 may include batteries and capacitors. Capacitors for energy storage may be based on supercapacitor structures. Devices 24 may, for example, include super capacitor(s) such as electrostatic double-layer capacitors. Electrostatic double-layer capacitors (sometimes referred to as electrostatic double-layer supercapacitors) are electrochemical capacitors in which energy is stored in a capacitor formed from relatively large electrodes that are bathed in electrolyte and separated by a small distance, allowing the capacitor to achieve high energy storage capacities.
Energy storage device 24 may be charged via a wired connection or, if desired, tag 10 may charge energy storage device 24 using wirelessly received power. Power may be received wirelessly using wireless power receiving circuitry 32. Wireless power receiving circuitry 32 in tag 10 may receive power from wireless power transmitting circuitry. The wireless power transmitting circuitry may be located in device 40, may be located in a charging case (e.g., a case that stores one or more tags 10), and/or may be located in a charging mat or other electronic equipment. The wireless power transmitting circuitry may transmit power wirelessly using inductive wireless power transfer, using capacitive wireless power transfer, and/or other wireless power transfer configurations (e.g., optical).