Final Report for CEC Production Scale-Up for Next Generation Batteries using Liquefied Gas Electrolytes
October 25, 2023
Energy Research and Development (500)
Electric Program Investment Charge - EPIC
Cyrus Rustomji, James Roye, Jungwoo Lee
This project focused on development of a low-rate initial production line of cylindrical battery cells fabricated using a patented and novel Liquefied Gas electrolyte at South 8 Technologies. The Liquefied Gas electrolyte allows for safer and higher energy Li-ion batteries which operate over a wider temperature range and at a lower cost for applications in energy storage systems, electric vehicles, and defense. Two manufacturing challenges exist to bring this technology to market: (1) electrolyte mixing and (2) electrolyte injection into cells. This project focused on these two aspects to elevate the manufacturing readiness level of the technology. Throughout this project, South 8 developed the necessary process planning, equipment design, and execution towards elevating the manufacturing readiness level on the Liquefied Gas electrolyte technology. Three primary tasks within the project included: (1) gas cabinet design and installation, (2) gas mixing manifold design and construction, and (3) cell injection design and construction. These tasks were fully validated and shown to meet project goals.