By Jason Deign
California start-up Capacitor Sciences claims to be developing an energy storage medium that could beat lithium-ion batteries on performance while costing around USD$100 per kWh.
The Menlo Park firm is hoping to use nano-structured crystalline thin films as the dielectric material for capacitors with up to 10 times the energy density and 100 times the power density of lithium ion batteries, according to a press release.
Capacitor Sciences says the use of thin film should overcome problems dogging other capacitor manufacturers, such as ill-fated EEStor, which used inorganic dielectric materials too brittle to withstand repeated charging cycles.
“No-one is really working on this class of materials,” said Wolfgang Mack, vice president of business development. “We’re using organic materials. They are waxy in nature. There’s no damage done during charge and discharge.”
Capacitor Sciences’s founder and chief technology officer, Dr Pavel Lazarev, was previously involved with Crysoptix, a liquid crystal display optical films maker, and nanomaterials business Optiva, which went out of business in 2005.
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