Harvard was able to pack 145 thin-film fuel cell batteries on a single wafe
The research team, led by professor and principal investigator Shriram Ramanathan, had previously proven the concept of fabricating thin-film membranes for solid-oxide fuel cells, but only at sizes too small to replace small batteries. Now the team, in collaboration with SiEnergy Systems LLC (an Allied Minds company in Boston), has demonstrated that the technology can successfully be scaled up.
The team fabricated the tiny fuel-cells with 100-nanometer thick membranes on chips that scaled up their area from 100 microns to 5 millimeters wide, achieving a power density of 155 milliwatts per square centimeter (at 510 degrees Celsius).
Next the team plans to fabricate nanostructured anodes for hydrogen-alternative fuels and microstructured electrodes, which together should enable the tiny fuel cells to replace small batteries.
Brian Wang is a Futurist Thought Leader and a popular Science blogger with 1 million readers per month. His blog Nextbigfuture.com is ranked #1 Science News Blog. It covers many disruptive technology and trends including Space, Robotics, Artificial Intelligence, Medicine, Anti-aging Biotechnology, and Nanotechnology.
Known for identifying cutting edge technologies, he is currently a Co-Founder of a startup and fundraiser for high potential early-stage companies. He is the Head of Research for Allocations for deep technology investments and an Angel Investor at Space Angels.
A frequent speaker at corporations, he has been a TEDx speaker, a Singularity University speaker and guest at numerous interviews for radio and podcasts. He is open to public speaking and advising engagements.