小袋
电极
图层(电子)
锂(药物)
材料科学
涂层
纳米技术
光电子学
石墨
计算机科学
化学
复合材料
生物
解剖
物理化学
内分泌学
作者
Matthew D. L. Garayt,Michel B. Johnson,Lauren Laidlaw,Mark A. McArthur,S. Trussler,Jessie Harlow,J. R. Dahn,Chongyin Yang
出处
期刊:Journal of The Electrochemical Society
[The Electrochemical Society]
日期:2023-08-01
卷期号:170 (8): 080516-080516
被引量:4
标识
DOI:10.1149/1945-7111/aceffc
摘要
With the growing number of academic researchers focused on lithium-ion batteries, the cell format of choice is often overlooked. Coin cells that utilize either a lithium metal or greatly oversized graphite negative electrode are common but can provide unrealistic testing results when compared to commercial pouch-type cells. Instead, single-layer pouch cells provide a more similar format to those used in industry while not requiring large amounts of active material. Moreover, their assembly process allows for better positive/negative electrode alignment, allowing for assembly of single-layer pouch cells without negative electrode overhang. This work presents a comparison between coin, single-layer pouch, and stacked pouch cells, and shows that single-layer pouch cells without overhang perform best. As well, an Ultra-High Precision Coulometry experiment is performed to show that excess negative or positive electrode coating is detrimental to cell performance. Finally, a guide to assembling reproducible single-layer pouch cells without overhang is presented.
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