Abstract
We report a comprehensive investigation into the impact of isostatic pressure (ISP) processing on multilayer pouch cells. The study compares baseline electrodes fabricated using conventional manufacturing processes with isostatically pressed counterparts under varying conditions. Extensive characterization is carried out to assess the differences between baseline cells and those that underwent the isostatic pressing process. The electrochemical performance of the isostatically pressed cathodes was evaluated through impedance spectroscopy and galvanostatic charge-discharge tests. The results indicated that ISP led to notable improvements in porosity, adhesion, and rate performance compared to the baseline cathodes. This work elucidates the microstructural changes induced by ISP in lithium-ion battery cathodes and highlights the technology's promise for advancing battery manufacturing. The findings contribute to a better understanding of how ISP can be effectively integrated into cell assembly, fostering the development of more efficient and scalable battery manufacturing techniques for current Li-ion and solid-state batteries.
| Original language | English |
|---|---|
| Article number | 100370 |
| Journal | Device |
| Volume | 2 |
| Issue number | 8 |
| DOIs | |
| State | Published - Aug 16 2024 |
Funding
This research was conducted at Oak Ridge National Laboratory, managed by UT Battelle, LLC, for the US Department of Energy (DOE) under contract DE-AC05-00OR22725. M.D. was also supported by an Alvin M. Weinberg Fellowship at the Oak Ridge National Laboratory. The work was sponsored by the Laboratory Directed Research and Development (LDRD) Program at Oak Ridge National Laboratory. The US Government retains for itself, and others acting on its behalf, a paid-up, nonexclusive, irrevocable worldwide license in said article to reproduce, prepare derivative works, distribute copies to the public, and perform publicly and display publicly, by or on behalf of the Government. DOE will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan). M.D. conceptualization, data curation, formal analysis, investigation, methodology, writing – original draft, and writing – review & editing; C.B. R.E. A.B. R.A. M.L. and J.S. formal analysis, investigation, methodology, writing – original draft, and writing – review & editing; T.R. conceptualization, resources, formal analysis, and writing – review & editing; M.B. and I.B. conceptualization, writing – review & editing, funding acquisition, resources, and supervision. The authors declare no competing interests. This research was conducted at Oak Ridge National Laboratory, managed by UT Battelle, LLC, for the US Department of Energy (DOE) under contract DE-AC05-00OR22725. M.D. was also supported by an Alvin M. Weinberg Fellowship at the Oak Ridge National Laboratory . The work was sponsored by the Laboratory Directed Research and Development (LDRD) Program at Oak Ridge National Laboratory. The US Government retains for itself, and others acting on its behalf, a paid-up, nonexclusive, irrevocable worldwide license in said article to reproduce, prepare derivative works, distribute copies to the public, and perform publicly and display publicly, by or on behalf of the Government. DOE will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan ( http://energy.gov/downloads/doe-public-access-plan ).
Keywords
- DTI-2: Explore
- isostatic pressing
- multilayer
- pouch cell
- processing
- solid-state battery