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Higa K, Zhang B, Chandrasiri DK, Tan D, Collins-Wildman D, Bloemhard P, Lizotte E, Martin-Nyenhuis G, Parkinson DY, Prasher R, Battaglia VS. Visualization of Porous Composite Battery Electrode Fabrication Dynamics for Different Formulations and Conditions Using Hard X-ray Microradiography. ACS Appl Energy Mater 2024; 7:2989-3008. [PMID: 38606033 PMCID: PMC11005008 DOI: 10.1021/acsaem.4c00402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 03/08/2024] [Accepted: 03/11/2024] [Indexed: 04/13/2024]
Abstract
Porous composite battery electrode performance is influenced by a large number of manufacturing decisions. While it is common to evaluate only finished electrodes when making process adjustments, one must then make inferences about the fabrication process dynamics from static results, which makes process optimization very costly and time-consuming. To get information about the dynamics of the manufacturing processes of these composites, we have built a miniature coating and drying apparatus capable of fabricating lab-scale electrode laminates while operating within an X-ray beamline hutch. Using this tool, we have collected the first radiography image sequences of lab-scale battery electrode coatings in profile, taken throughout drying processes conducted under industrially relevant conditions. To assist with interpretation of these image sequences, we developed an automated image analysis program. Here, we discuss our observations of battery electrode slurry samples, including stratification and long-term fluid flow, and their relevance to composite electrode manufacturing.
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Affiliation(s)
- Kenneth Higa
- Lawrence
Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Buyi Zhang
- Lawrence
Berkeley National Laboratory, Berkeley, California 94720, United States
- University
of California, Berkeley, Berkeley, California 94720, United States
| | | | - Denny Tan
- Lawrence
Berkeley National Laboratory, Berkeley, California 94720, United States
| | | | - Patricius Bloemhard
- Lawrence
Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Eric Lizotte
- Lawrence
Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Gabriela Martin-Nyenhuis
- Lawrence
Berkeley National Laboratory, Berkeley, California 94720, United States
- RWTH
Aachen University, Aachen 52056, Federal
Republic of Germany
| | | | - Ravi Prasher
- Lawrence
Berkeley National Laboratory, Berkeley, California 94720, United States
- University
of California, Berkeley, Berkeley, California 94720, United States
| | - Vincent S. Battaglia
- Lawrence
Berkeley National Laboratory, Berkeley, California 94720, United States
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