Li-Ion Pouch Cells Made with a Scalable Nanosilicon-Graphite Composite Anode

Autor: Alexis Laforgue, Chae-Ho Yim, Yaser Abu-Lebdeh, Mathieu Toupin, Svetlana Niketic
Rok vydání: 2020
Předmět:
Zdroj: ECS Meeting Abstracts. :464-464
ISSN: 2151-2043
DOI: 10.1149/ma2020-012464mtgabs
Popis: Nanosilicon can be dropped-in the battery-graphite processing flow to form a composite having enhanced specific capacity and improved capacity retention. The resulting active material was used to fabricate pouch cell using a pilot scale semi-automated battery manufacturing line without any special treatment or processing. This demonstrated that such a technological platform could be transparent to cell manufacturers. The electrochemistry of the composite active material will be evaluated in half-cells against Li metal and in full cells against NMC 532 by polarization curves, differential capacity analysis (dQ/dV) and rate mapping to evaluate the performance. Further characterization by in-operando X-ray diffraction, focused ion-beam x-section images made with a scanning electron microscope will be showed and discussed in an attempt to better understand the structure of the composite. This opens the door to the evaluation of numerous promising nanomaterials and graphite feeds in a rather simple fashion, most importantly a scalable one.
Databáze: OpenAIRE