{"copyright":{"thirdPartyPermissionsProduced":false,"disclosedToPublic":false,"containsIndication":false,"publisherPermissionOrRightsToDistribute":false,"belongsToUsGov":false,"determinationType":"PUBLIC_USE_PERMITTED","thirdPartyContentCondition":"NOT_SET","belongsToContractor":false,"disclosedInvention":false,"submissionId":20200000315,"containsThirdPartyMaterial":false,"belongsToPublisher":false,"id":"24a135bbbbbe4b428451927c8954eeac","belongsToAuthors":false},"subjectCategories":["Systems Analysis And Operations Research"],"exportControl":{"isExportControl":"NO","eccnNumber":"","submissionId":20200000315,"ear":"NO","id":"b732108b8ae34020973780c47bb4881f","itar":"NO"},"distributionDate":"2020-01-21T10:43:14.2900000+00:00","otherReportNumbers":["ARC-E-DAA-TN74559","Report Number: ARC-E-DAA-TN74559"],"fundingNumbers":[{"number":"00370.04C.267.001","submissionId":20200000315,"id":"283e3f3b7e5e40b8bca0c9dcafe45d51","type":"CONTRACT_GRANT"},{"number":"NNA14AA60C","submissionId":20200000315,"id":"0a26bc2899c547efb8d3e930619a4a79","type":"CONTRACT_GRANT"}],"title":"Parameters Inference and Model Reduction for the Single-Particle Model of Li Ion Cells","stiType":"CONFERENCE_PAPER","distribution":"PUBLIC","submittedDate":"2020-01-16T10:45:05.0200000+00:00","authorAffiliations":[{"sequence":0,"submissionId":20200000315,"meta":{"author":{"name":"Khasin, Michael"},"organization":{"name":"Stinger Ghaffarian Technologies Inc. (SGT Inc.)","location":"Moffett Field, CA, United States"}},"id":"d4bd5e77740147fab829e937205124dd"},{"sequence":1,"submissionId":20200000315,"meta":{"author":{"name":"Kulkarni, Chetan S."},"organization":{"name":"Stinger Ghaffarian Technologies Inc. (SGT Inc.)","location":"Moffett Field, CA, United States"}},"id":"df21281c75534b3c94d10142250d3822"},{"sequence":2,"submissionId":20200000315,"meta":{"author":{"name":"Goebel, Kai"},"organization":{"name":"PARC"}},"id":"6a02522443554d15aeb2d0a85428ff5a"}],"stiTypeDetails":"Conference Paper","technicalReviewType":"TECHNICAL_REVIEW_TYPE_NONE","modified":"2025-08-31T18:39:21.7150190+00:00","id":20200000315,"legacyMeta":{"__type":"LegacyMetaIndex, StrivesApi.ServiceModel","accessionNumber":""},"created":"2020-01-16T10:45:05.0200000+00:00","center":{"code":"ARC","name":"Ames Research Center","id":"4540cd94d24c4bf29f8773a27faf96b2"},"onlyAbstract":false,"sensitiveInformation":2,"abstract":"The Single-Particle Model (SPM) of Li ion cell is a computationally efficient model for simulating Li ion cell for weak to moderate currents. The model depends n a number of parameters describing the geometry and material properties of a cell components. In order to apply the model to simulating a cell, the best-fit parametric values have to be inferred from a constant discharge data. We report our efforts to determine the best-fit set for 18650 LP batteries. We found that rather than being best-fit by a particular point in the parametric space the data is fit equally well by an ensemble of points clustering about an effective multidimensional manifold in the parametric space. This property of the SPM is known to be shared by a multitude of the so-called \"sloppy models\" of complex systems, characterized by a few stiff directions in the parametric space, in which the predicted behavior varies significantly, and a number of sloppy directions in which the behavior doesn't change appreciably. Only the stiff parameters combinations are identifiable. Geometrical features of the BFM give insights to possible reduction of the SPM to a model having fewer sloppy parameters. We have constructed a hierarchy of such models. The fully reduced model depends on only stiff effective parameters which are identifiable and can be used for characterization of the battery's state of health.","isLessonsLearned":false,"disseminated":"DOCUMENT_AND_METADATA","meetings":[{"country":"United States","submissionId":20200000315,"endDate":"2019-11-21T00:00:00.0000000+00:00","sponsors":[{"organizationId":"599569eabb93418db42fa10e3294bd52","meta":{"organization":{"name":"NASA Marshall Space Flight Center","location":"Huntsville, AL, United States"}},"meetingId":"b4904a4d6fd2436a950ae960402ad12d","id":"b572e93d8171437e8521187a5fadb544"}],"name":"NASA Aerospace Battery Workshop","location":"Huntsville, AL","id":"b4904a4d6fd2436a950ae960402ad12d","startDate":"2019-11-19T00:00:00.0000000+00:00"}],"publications":[{"submissionId":20200000315,"id":"5c210b9ede7a445abb84bf95a69cd5c7","publicationDate":"2019-11-19T00:00:00.0000000+00:00"}],"status":"CURATED","related":[],"downloads":[{"draft":false,"mimetype":"application/pdf","name":"20200000315.pdf","type":"STI","links":{"original":"/api/citations/20200000315/downloads/20200000315.pdf","pdf":"/api/citations/20200000315/downloads/20200000315.pdf","fulltext":"/api/citations/20200000315/downloads/20200000315.txt"}}],"downloadsAvailable":true,"index":"submissions-2026-06-18-04-54"}