The Cell Fabrication Facility (CFF) and the Post Test Facility (PTF) are the newest DOE core-supported battery research facilities to come online to support research and development of advanced battery materials.The CFF is housed in a 45 square meter dry room that is capable of maintaining less than 100 ppm moisture content. The semi-automated equipment includes coating and hot rolling equipment, xx3450 pouch cell and 18650 cylindrical cell assembly equipment. Additionally, specialty electrodes can be made. By utilizing the pouch-cell making equipment, advanced analytical cells (half and full cells) can be made for in-situ high energy X-ray beam studies or neutron beam studies to examine the structural and electrochemical correlation in battery materials. Lastly, by being able to control the entire battery manufacturing process, the CFF can vary any aspect of a cell and determine its effect on the performance or safety.Battery testing provides much information about how battery performance changes with time under a given set of conditions. Post-test diagnostics of aged batteries can provide additional information regarding the cause of performance degradation, which, previously, could be only inferred. The diagnostics in the PTF include spectroscopic, microscopic and chromatographic analysis under inert atmosphere conditions. All of the disassembly and analytical equipment is housed in an ultrahigh-purity, argon filled glove box. After conducting standardized electrochemical testing, cells can be examined in this facility without air exposure, preserving the integrity of the samples. The combination of standardized testing and in-situ analysis provides insight into the physicochemical processes responsible for performance degradation.

Cell fabrication and post test facilities at Argonne National Laboratory

246th National Meeting (2013)

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