Advanced parametrization for the production of high-energy solid-state lithium pouch cells containing polymer electrolytes
Wonmi Lee, Juho Lee, Taegyun Yu, Hyeong-Jong Kim, M. Kim, Sungbin Jang, Ju-Hee Kim, Yujin Han, Sunghun Choi, Sinho Choi, Tae‐Hee Kim, Sang‐Hoon Park, Wooyoung Jin, Gyujin Song, Dong‐Hwa Seo, Sung‐Kyun Jung, Jin‐Soo Kim, Jin‐Soo Kim, Jin‐Soo Kim
Abstract
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.