Advanced Parametrization for the Production of High-Energy Solid-State Lithium Pouch Cells Containing Polymer Electrolytes
Nature Communications(2024)
摘要
Abstract Lithium batteries with solid-state electrolytes are an appealing alternative to state-of-the-art non-aqueous lithium-ion batteries with liquid electrolytes because of safety and energy aspects. However, engineering development at the cell level for lithium batteries with solid-state electrolytes is limited. Here, to advance this aspect and produce high-energy lithium cells, we introduce a cell design based on advanced parametrization of microstructural and architectural parameters of electrode and electrolyte components. To validate the cell design proposed, we assemble and test (applying a stack pressure of 3.74 MPa at 45 °C) 10-layer and 4-layer solid-state lithium pouch cells with a solid polymer electrolyte, resulting in an initial specific energy of 280 Wh kg−1 (corresponding to an energy density of 600 Wh L−1) and 310 Wh kg−1 (corresponding to an energy density of 650 Wh L−1) respectively.
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