ZENN Motor bet on a battery that never came — became the company it invested in

ZENN Motor Company was founded in 2000 as Feel Good Cars by Ian Clifford and partners in Toronto, Canada. The company produced low-speed neighborhood electric vehicles (NEVs) — small, slow cars for gated communities and urban use. The cars used lead-acid batteries and sold in tiny volumes: just 360 vehicles across 2008–2009, each losing roughly CAD$65,000 on a $15,000 selling price.

ZENN's real bet was not on its own vehicles but on EEStor, a secretive Texas company claiming to have invented a solid-state ultracapacitor that could store 10x the energy of a lithium battery at a fraction of the cost. ZENN acquired a 10.7% stake in EEStor and secured exclusive rights to the technology for small vehicles. The founder staked the company's future on this promise.

EEStor repeatedly promised delivery: by end of 2007, then 2008, then 2009. Each deadline passed with nothing. ZENN poured millions into EEStor while its vehicle sales bled cash. In 2009–2010, ZENN cancelled vehicle production, laid off staff, and pivoted entirely to EEStor development.

By 2015, ZENN had effectively become EEStor. It changed its corporate name to EEStor Corporation and stopped building vehicles entirely. The ultracapacitor was never commercialized. ZENN had gone from an electric car company to a shell holding shares in a failed energy-storage startup.