Aquion Energy, Inc., a manufacturer of environmentally-friendly commercial and industrial batteries, has filed a petition for relief under Chapter 11 in the Bankruptcy Court for the District of Delaware (Case No. 17-10500-KJC). Aquion, which utilizes a patented “Aqueous Hybrid Ion” design in its batteries, acquired fame in 2014 after raising $36.8 million in venture capital funding from investors including Bill Gates and members of the Pritzker family. Aquion’s petition reports $10 million to $50 million in both assets and liabilities. Aquion’s initial matrix of creditors may be found here. The case has been assigned to the Honorable Kevin J. Carey.