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Harvard scientists develop ink for 3D printing lithium-ion battery

a team of scientists at harvard university and the university of illinois have developed an electrochemically active ink and custom-made syringe nozzle tips for 3D printing lithium-ion microbatteries, which measure less than the width of a human hair. printed in the form interlaced stacks of tiny electrodes, the microbatteries have the capability to supply electricity to tiny devices in fields from medicine to communications. unlike the ink in an office inkjet printer – which comes out as droplets of liquid that wet the page – it has been developed for extrusion-based 3D printing. in the future, the technology will assist in the advancement of miniaturized medical implants, compact electronics and even small-scale robots.

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