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, Min Kyung Kim, Sungbin Jang, Juhee Kim, Yu-Jin Han, Sunghun Choi, Sinho Choi, Tae-Hee Kim, Sang-Hoon Park, Wooyoung Jin, Gyujin Song, Dong-Hwa Seo, Sung-Kyun Jung () and Jinsoo Kim ()
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Wonmi Lee: Korea Institute of Energy Research
Juho Lee: Korea Institute of Energy Research
Taegyun Yu: Korea Institute of Energy Research
Hyeong-Jong Kim: Ulsan National Institute of Science and Technology (UNIST)
Min Kyung Kim: Korea Institute of Energy Research
Sungbin Jang: Korea Institute of Energy Research
Juhee Kim: Korea Institute of Energy Research
Yu-Jin Han: Korea Institute of Energy Research
Sunghun Choi: Korea Institute of Energy Research
Sinho Choi: Korea Institute of Energy Research
Tae-Hee Kim: Korea Institute of Energy Research
Sang-Hoon Park: Korea Institute of Energy Research
Wooyoung Jin: Korea Institute of Energy Research
Gyujin Song: Korea Institute of Energy Research
Dong-Hwa Seo: Korea Advanced Institute of Science and Technology (KAIST)
Sung-Kyun Jung: Ulsan National Institute of Science and Technology (UNIST)
Jinsoo Kim: Korea Institute of Energy Research

Nature Communications, 2024, vol. 15, issue 1, 1-15

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.

Date: 2024
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DOI: 10.1038/s41467-024-50075-9

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