Review—Post-Mortem Analysis of Aged Lithium-Ion Batteries: Disassembly Methodology and Physico-Chemical Analysis Techniques
By T. Waldmann, A. Iturrondobeitia, M. Kasper, N. Ghanbari, F. Aguesse, E. Bekaert, L. Daniel, S. Génies, I. J. Gordon, M. Löble and 2 more. 2016
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Improvement of life-time is an important issue in the development of Li-ion batteries. Aging mechanisms limiting the life-time can efficiently be characterized by physico-chemical analysis of aged cells with a variety of complementary methods. This study reviewsthestate-of-the-artliteratureonPost-MortemanalysisofLi-ioncells,includingdisassemblymethodologyaswellasphysico-chemicalcharacterizationmethodsforbatterymaterials.AdetailedschemeforPost-Mortemanalysisisdeducedfromliterature,includingpre-inspection,conditionsandsafeenvironmentfordisassemblyofcells,aswellasseparationandpost-processingofcomponents.Specialattentionispaidtothecharacterizationofagedmaterialsincludinganodes,cathodes,separators,andelectrolyte.Morespecifically,microscopy,chemicalmethodssensitivetoelectrodesurfacesortoelectrodebulk,andelectrolyteanalysisare reviewed in detail. The techniques are complemented by electrochemical measurements using reconstruction methods for electrodes built into half and full cells with reference electrode. The changes happening to the materials during aging as well as abilities of the reviewed analysis methods to observe them are critically discussed. determined their LiF concentrations. By with the capacity fade of the cycled cell, the authors were able to propose several reaction paths for the different aging mechanisms of the examined electrodes. proposed thermal decomposition mecha- nisms due to autocatalysis and protic impurities for several carbonate solvents frequently used in state-of-the-art electrolytes like 220,221 Their study was a combination of NMR methods ( 1 H, F, 31 COSY and GC-MS and SEC and was done on a model system, which did not contain material collected an aged Li-ion cell. in addition to protic impurities
Subfields: Automotive Engineering, Electrical and Electronic Engineering, Mechanical Engineering
View Paper: https://www.semanticscholar.org/paper/80aef529c771a0f86e1f461ede8eff61435bd05e
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Citations in the corpus
- Lithium Plating Mechanism, Detection, and Mitigation in Lithium-Ion Batteries (2021, methodology): “Rotary tools, such as Dremel, are typically used for cylindrical cells; the isolated plier is used for prismatic cells; and the knife, along with a pair of scissors, can be used for pouch cells [85,86, 92].”