The Nokia E-Cu concept phone by Patrick Hyland uses an embedded thermogenerator to generate electricity.

London designer, Patrick Hyland has developed a phone that charges using the heat in your pocket. The Nokia E-Cu has an embedded thermogenerator that converts heat from any source into energy to charge the phone.

The Nokia E-Cu's case is copper-based with engraved heat sinks in a dry earth pattern. Phone chargers produce 51,000 tons of waste annually in addition to greenhouse gases created by the production of the electricity needed to charge them. The E-Cu's (E for environment, Cu for Copper) heat conductive charging system eliminates the need for any charger.

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