2022
DOI: 10.3390/nano12091574
|View full text |Cite
|
Sign up to set email alerts
|

Modelling and Optimisation of Laser-Structured Battery Electrodes

Abstract: An electrochemical multi-scale model framework for the simulation of arbitrarily three-dimensional structured electrodes for lithium-ion batteries is presented. For the parameterisation, the electrodes are structured via laser ablation, and the model is fit to four different, experimentally electrochemically tested cells. The parameterised model is used to optimise the parameters of three different pattern designs, namely linear, gridwise, and pinhole geometries. The simulations are performed via a finite elem… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
3
1

Citation Types

0
5
0

Year Published

2023
2023
2024
2024

Publication Types

Select...
9
1

Relationship

2
8

Authors

Journals

citations
Cited by 12 publications
(5 citation statements)
references
References 33 publications
0
5
0
Order By: Relevance
“…While other groups have already investigated structured electrodes, and to some extent performed some parameter space analysis on the channel dimensions and/or patterns, 27,32,33 there is not (to the authors knowledge) a channel design identified as optimal from an optimization analysis (that is not form a list of predetermined patterns or a list of dimension parameters, but from the full design space without parameter down selection). For instance, for the SPN, grooves lines and cylindrical channels organized in a regular hexagon pattern are the two cases typically investigated in the literature, even though these two patterns only represent a tiny fraction of the whole design space.…”
Section: Review Of Structured Electrode Channel Patternsmentioning
confidence: 99%
“…While other groups have already investigated structured electrodes, and to some extent performed some parameter space analysis on the channel dimensions and/or patterns, 27,32,33 there is not (to the authors knowledge) a channel design identified as optimal from an optimization analysis (that is not form a list of predetermined patterns or a list of dimension parameters, but from the full design space without parameter down selection). For instance, for the SPN, grooves lines and cylindrical channels organized in a regular hexagon pattern are the two cases typically investigated in the literature, even though these two patterns only represent a tiny fraction of the whole design space.…”
Section: Review Of Structured Electrode Channel Patternsmentioning
confidence: 99%
“…In addition, with line structures, the wetting of the liquid electrolyte in laser-patterned electrodes can be accelerated due to capillary forces [18][19][20]. In addition, an enhanced capacity retention at high discharge/charge rates and a reduced charge transfer resistance were observed in cells containing laser-patterned Li(Ni 0.5 Mn 0.3 Co 0.2 )O 2 (NMC 532) [21], Li(Ni 0.6 Mn 0.2 Co 0.2 )O 2 (NMC 622) [22][23][24], LiCoO 2 (LCO) [25], Li(Ni 0.8 Mn 0.1 Co 0.1 )O 2 (NMC 811) [26,27], LiFePO 4 (LFP) [28], graphite [23,25,29], and Si/graphite (see reference [30] and those cited therein) using line patterns with varying pitches. In addition, alternative patterns such as throughholes in LFP cathodes [31][32][33], blind holes in graphite [34][35][36][37][38][39], and grid patterns in Si/graphite anodes [40] have also been reported.…”
Section: Introductionmentioning
confidence: 99%
“…The impact of the pattern on the resulting performances is still ambiguous. Depending on the electrochemical modeling approach, it was shown, on the one hand, that the capability of these patterns is roughly similar [22] and, on the other hand, that hexagonal patterns are more efficient for fast charging [23]. In addition, these patterns do not present the same wetting properties and lead to different takt times [16,23].…”
Section: Introductionmentioning
confidence: 99%