CAMBRIDGE, England--(BUSINESS WIRE)--Wireless charging of portable devices such as mobile phones and medical implants has come center stage recently. Latest mobile phones and wearable electronics use too much electricity that they typically expire before a charging station is found. Charging is then long and tedious. Cutting someone open to change their battery is grotesquely bad practice. Better batteries and energy harvesting such as solar cells have not proved adequate so ubiquitous top-up c
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