A Guide to Full Coin Cell Making for Academic Researchers. Issue 2 (30th January 2019)

• Record Type: Journal Article
• Authors: Murray, Vivian; Hall, David S.; Dahn, J. R.
• Is Part Of: Journal of the Electrochemical Society. Volume 166:Issue 2(2019)
• Page Start: A329
• Page End: A333
• Publication Date: 2019-01-30
• Subjects: Batteries - Lithium -- assembly guide -- coin cells -- lithium-ion; Electrochemistry -- Periodicals; 541.3705
• DOI: 10.1149/2.1171902jes
• Languages: English
• ISSNs: 0013-4651

Abstract

Abstract : The development of new positive electrode materials is on route to increase the energy density of lithium-ion batteries (LIBs) for electric vehicle and grid storage applications. The performance of new materials is typically evaluated using hand-made half coin cells with the new material as the positive electrode and a piece of lithium foil for the negative. Whereas half coin cells are easy to make and can give reproducible data, they can fail to accurately predict how a material would perform in a full cell. The present work develops methods to prepare full coin cells, using graphite as the negative electrode material. Detailed instructions are provided to enable researchers to prepare their own high quality full coin cells with good reproducibility between cells. The precision of the hand-made full coin cells is compared with and found to approach the quality of machine-made, commercially produced full cells.