Process and performance optimization by selective assembly of battery electrodes

authored by

Jan Schmitt, Annika Raatz, Franz Dietrich, Klaus Dröder, Jürgen Hesselbach

Abstract

The increasing demand for electric vehicles and thus lithium-ion batteries results in a multitude of challenges in production technology. The reproducibility and performance of large scale batteries for automotive applications are very high. At the same time the production processes are complex and involve many uncertainties. Two essential process steps are the electrode coating and electrode package assembly. The mass loading of anodes and cathodes are determined by the coating process, where deviations can be caused by different reasons. The selective assembly of the electrodes is a reasonable way to balance the production variances. The contribution shows extended algorithms and their benefits and drawbacks of matching electrodes in order to improve the subsequent electrode packaging process. Here, the aim is to reach higher cell capacities and optimized performance values by "optimally" balanced electrodes regarding the mass loading ratio, which is also related to the specific material capacity.

Organisation(s)

Institute for Assembly Technology and Robotics

External Organisation(s)

Technische Universität Braunschweig

Type

Article

Journal

CIRP Annals - Manufacturing Technology

Volume

63

Pages

9-12

No. of pages

4

ISSN

0007-8506

Publication date

16.04.2014

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Mechanical Engineering, Industrial and Manufacturing Engineering

Sustainable Development Goals

SDG 7 - Affordable and Clean Energy

Electronic version(s)

https://doi.org/10.1016/j.cirp.2014.03.018 (Access: Closed)