Lithium Oxyhalide Battery Separator Material Development

eSpin Technologies will complete the scale up of a production-scale machine to produce novel, high performance battery separator material for Li primary batteries. The production scale process will be developed to produce novel separator and variants which have the potential for a significantly higher volumetric efficiency for electrolyte storage capacity and kinetics to distribute electrolyte flow within nanoporous channel efficiently. This new separator will be based on an advanced nanofiber construct with increased porosity and smaller pore size. The separator material will be non-corroding and protective against toxicity of electrolyte. This advanced separator will also demonstrate excellent thermal stability over a range of temperature (-32 C to 250 C), and strength to withstand battery manufacturing operation. Advanced separator’s lower weight and thinner construct will result in lower flow and electrical resistance, thereby allowing electrolyte to penetrate and provide increased ionic conductivity and higher rate capability. Approved for Public Release | 22-MDA-11339 (13 Dec 22)