Ioxus builds ultracapacitors that are engineered and manufactured to provide cost-effective, green energy solutions. Ioxus Logo
Oneonta, NY
VC-Funded Company
Energy Storage

Ioxus Inc., with the only fully integrated ultracapacitor design and manufacturing facility in North America, brings the highest standards and most flexible problem-solving methods to power delivery solutions. Ioxus ultracapacitors use a proprietary electrode design to deliver the highest power density available. We are also one of the few companies in the world that offer a lithium-ion hybrid ultracapacitor that stores more than twice the energy of a standard EDLC.

Our ultracapacitors are capable of more than a million cycles, yet weigh only one-fifth as much as a battery of comparable physical size. Ultracapacitors deliver power at the point of demand and increase the life of other storage devices when used in hybrid energy systems. Ioxus also manufactures a line of hybrid capacitors for applications that demand higher energy density with high cycle life.

Ioxus is backed by venture capital firms Braemar Energy Ventures, and the Westly Group.

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