Sion Power Adds $50M in Equity Financing

Tuscon-based Sion Power Corp. has raised $50 million in new equity financing, according to a filing with the Securities & Exchange Commission. Details about investors were not included in the regulatory document, filed Friday. The company’s board includes James Simons, president of investment firm Renaissance Technologies Corp.; and Leo Guthart, chief of Long Island-based venture capital firm Topspin Partners. Sion makes rechargeable lithium sulfur batteries.

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