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dc.contributor.authorMoia, Davide
dc.contributor.authorGiovannitti, Alexander
dc.contributor.authorSzumska, Anna A.
dc.contributor.authorSchnurr, Martin
dc.contributor.authorRezasoltani, Elham
dc.contributor.authorMaria, Iuliana P.
dc.contributor.authorBarnes, Piers R.F.
dc.contributor.authorMcCulloch, Iain
dc.contributor.authorNelson, Jenny
dc.date.accessioned2017-12-28T07:32:10Z
dc.date.available2017-12-28T07:32:10Z
dc.date.issued2017-11-28
dc.identifier.urihttp://hdl.handle.net/10754/626457
dc.description.abstractWe report a neutral salt water based battery which uses p-type and n-type solution processed polymer films as the cathode and the anode of the cell. The specific capacity of the electrodes (approximately 30 mAh cm-3) is achieved via formation of bipolarons in both the p-type and n-type polymers. By engineering ethylene glycol and zwitterion based side chains attached to the polymer backbone we facilitate rapid ion transport through the non-porous polymer films. This, combined with efficient transport of electronic charge via the conjugated polymer backbones, allowed the films to maintain constant capacity at high charge and discharge rates (>1000 C-rate). The electrodes also show good stability during electrochemical cycling (less than 30% decrease in capacity over >1000 cycles) and an output voltage up to 1.4 V. The performance of these semiconducting polymers with polar side-chains demonstrates the potential of this material class for fast-charging, water based electrochemical energy storage devices.
dc.publisherarXiv
dc.relation.urlhttp://arxiv.org/abs/1711.10457v1
dc.relation.urlhttp://arxiv.org/pdf/1711.10457v1
dc.rightsArchived with thanks to arXiv
dc.titleA salt water battery with high stability and charging rates made from solution processed conjugated polymers with polar side chains
dc.typePreprint
dc.contributor.departmentChemical Science Program
dc.contributor.departmentKAUST Solar Center (KSC)
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Division
dc.eprint.versionPre-print
dc.contributor.institutionDepartment of Physics, Imperial College London SW7 2AZ London, UK
dc.contributor.institutionDepartment of Chemistry, Imperial College London SW7 2AZ London, UK
dc.identifier.arxividarXiv:1711.10457
kaust.personMcCulloch, Iain
refterms.dateFOA2018-06-14T05:32:51Z


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