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- Title
Advanced parametrization for the production of high-energy solid-state lithium pouch cells containing polymer electrolytes.
- Authors
Lee, Wonmi; Lee, Juho; Yu, Taegyun; Kim, Hyeong-Jong; Kim, Min Kyung; Jang, Sungbin; Kim, Juhee; Han, Yu-Jin; Choi, Sunghun; Choi, Sinho; Kim, Tae-Hee; Park, Sang-Hoon; Jin, Wooyoung; Song, Gyujin; Seo, Dong-Hwa; Jung, Sung-Kyun; Kim, Jinsoo
- 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. Multiscale design principles and empirical processing techniques are considered for the design of high-energy-density Li-based batteries using polymer electrolytes. Here, the authors demonstrate the effectiveness of this approach by assembling and testing ampere-hour-level solid-state lithium-based pouch cells.
- Subjects
LITHIUM cells; POLYELECTROLYTES; SOLID electrolytes; ENERGY density; SUPERIONIC conductors; LITHIUM-ion batteries; ELECTROLYTES
- Publication
Nature Communications, 2024, Vol 15, Issue 1, p1
- ISSN
2041-1723
- Publication type
Article
- DOI
10.1038/s41467-024-50075-9