UBATT’s 600 Wh/kg pouch-type lithium metal battery cell with thick electrode platform (TEP) technology
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Lithium metal batteries (LMBs) have received considerable attention due to their practically achievable high energy- and power-dense designs. Especially, layered metal oxide, Li metal, and organic liquid electrolyte-paired system is a promising candidate for mass market adoption in aviation and military applications. However, the mass production of large format LMB is impeded by the unsatisfactory performance of high mass loading cathodes and insufficient supply of N/P-balanced Li metal anodes. Here, as an innovative manufacturing strategy, a thick electrodes-based LMB design is proposed. UBATT’s TEP technology triggers the self-assembly of conductive agents and polymer binders during the conventional slurry mixing to reliably produce 15 mAh/cm2 high nickel cathodes (95-97 wt% AM, 3.5-3.8 g/cc). As a result, the high mass loading cathodes and 100 μm thick Li metal anodes-based LMB pouch stack cell provides an initial capacity of 10 Ah and an energy density of 600 Wh/kg (= 1200 Wh/L).