Influence of Separator Material on Infiltration Rate and Wetting Behavior of Lithium‐Ion Batteries. Issue 2 (9th May 2019)

• Record Type: Journal Article
• Authors: Schilling, Antje; Wiemers-Meyer, Simon; Winkler, Volker; Nowak, Sascha; Hoppe, Bastian; Heimes, Heiner Hans; Dröder, Klaus; Winter, Martin
• Other Names: Kwade Arno guestEditor.
• Is Part Of: Energy technology. Volume 8:Issue 2(2020:Feb.)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2019-05-09
• Subjects: battery separators -- electrolyte filling -- lithium-ion batteries -- production process -- wetting time enhancement; Energy development -- Periodicals; Power resources -- Periodicals; 333.79
• DOI: 10.1002/ente.201900078
• Languages: English
• ISSNs: 2194-4288

Abstract

Abstract : The reduction of process time and costs of lithium‐ion‐battery (LIB) cells to make electromobility an ecological technology and economically accessible for everyone is a very crucial research topic. Within the production process of actual LIB cells, the electrolyte filling and wetting are very time‐consuming, and by association, cost‐intensive steps. Therefore, it is essential to investigate and understand the impact of several process parameters on the wetting time and product quality. This can be achieved by the visualization of the wetting progress and subsequent electrochemical characterization of the LIB cells. The monitoring is realized by wetting balance tests for electrodes and separators as well as a new and powerful thermographic method. In addition, different separators with different surface chemistries are tested to improve the production process, the actual cell design, and therefore the costs of the final battery cell. Abstract : The production of lithium‐ion‐battery cells is very crucial for actual and prospective electric vehicles. Very time‐consuming steps are the electrolyte filling and wetting of the cells. Herein, the comparison of a polymer and a ceramic separator by a classical wetting balance test and a newly developed thermography method is presented.