Polyplus, a Berkeley, California-based battery developer, has teamed with SK, Korea’s” first and largest energy and chemical company,“ to produce and test prototype cells to demonstrate increased volumetric and gravimetric energy density and cycle life relative to existing Li-ion cells.” Just reported, “The PolyPlus lithium-water battery has achieved the highest recorded energy density of 1,300 Watt-hours/kilogram, or an almost 10x improvement* over current lithium-ion batteries. Polyplus projects the energy density for commercial lithium-air batteries to be 1000 watt-hours per kilogram.” As with many recent partnerships, the alliance between Polyplus and SK provides “muscle” for the smaller partner. Polyplus, with 18 bay area employees, will benefit from the far more sizable SK’s financial and managerial expertise. Between the two firms Polyplus’ 135 issued and 40 pending patents should receive proper support. According to Green Car Congress, “SK selected PolyPlus as partner for its global consortium.” The collaboration is focused on PolyPlus’ solid-state lithium anode laminate that has the potential to double the …
