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A fast solver for the pseudo-two-dimensional model of lithium-ion batteries

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arxiv 2111.09251 v1 pith:QQROO7CH submitted 2021-11-17 physics.app-ph cs.SYeess.SYphysics.chem-phphysics.comp-ph

classification physics.app-phcs.SYeess.SYphysics.chem-phphysics.comp-ph
keywords modelbatteriescomplexitycomputationalfastmethodpseudo-two-dimensionalreduce
verification ladder T0 review T1 audit T2 compute T3 formal
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The pseudo-two-dimensional (P2D) model is a complex mathematical model that can capture the electrochemical processes in Li-ion batteries. However, the model also brings a heavy computational burden. Many simplifications to the model have been introduced in the literature to reduce the complexity. We present a method for fast computation of the P2D model which can be used when simplifications are not accurate enough. By rearranging the calculations, we reduce the complexity of the linear algebra problem. We also employ automatic differentiation, using an open source package JAX for robustness, while also allowing easy implementation of changes to coefficient expressions. The method alleviates the computational bottleneck in P2D models without compromising accuracy.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Optimal-rate error estimates and a twice decoupled solver for a backward Euler finite element scheme of the Doyle-Fuller-Newman model of lithium-ion cells

    math.NA 2024-11 conditional novelty 7.0 of 10

    For the Doyle-Fuller-Newman battery model, the paper derives optimal-order error bounds for a backward Euler finite element scheme and demonstrates a twice-decoupled solver that is about twice as fast as existing solv...

  2. Forward and Inverse Simulation of Pseudo-Two-Dimensional Model of Lithium-Ion Batteries Using Neural Networks

    physics.comp-ph 2024-12 conditional novelty 6.0 of 10

    A neural-network solver with a learned bypass term and an integral conservation constraint solves the full nonlinear P2D battery model and estimates battery lengths from data.

  3. Optimal convergence in finite element semi-discrete error analysis of the Doyle-Fuller-Newman model beyond 1D with a novel projection operator

    math.NA 2024-11 conditional novelty 6.0 of 10

    Optimal O(h+(Δr)^2) finite element convergence for the Doyle-Fuller-Newman battery model in dimensions N=2,3 is established with a new projection operator and verified numerically.

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