An undisclosed company, which claims to be a “well-funded American company”, purchased advertising in the Wall Street Journal to invite a “select” group of people to the unveiling of its research and data on a new high-energy density battery cell.

The mysterious company is only inviting representatives from “product manufacturers listed on the NYSE or NASDAQ having a market capitalization of more than $500 million”. Investment bankers, venture capital companies, government representatives, or members of the press are not allowed to attend the event. expand full story