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Stability and rheological study of sodium carboxymethyl cellulose and alginate suspensions as binders for lithium ion batteries

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dc.contributor.author García, Alberto
dc.contributor.author Culebras, Mario
dc.contributor.author Collins, Maurice N.
dc.contributor.author Leahy, James J.
dc.date.accessioned 2018-04-25T08:06:33Z
dc.date.issued 2018
dc.identifier.uri http://hdl.handle.net/10344/6779
dc.description peer-reviewed en_US
dc.description.abstract Currently, the most widely used binder in batteries is polyvinylidene fluoride (PVDF) with N-methyl-2-pyrrolidone (NMP) used as a solvent. This solvent is flammable and toxic. Here we focus on the suitability of using water soluble sodium alginate (Na-alginate) and sodium carboxymethyl cellulose (Na-CMC) as alternative biobased binder materials for the anodes of lithium ion batteries. It reduces the environmental impact of current manufacturing processes. However, control of the rheological characteristics of the binder whilst containing active and conductive additives is key for optimised processing. Here we perform stability and rheological measurements of Na-alginate and Na-CMC solutions containing varying amounts of graphite and carbon black used as active and conductive materials respectively. Comparing to the benchmark Na-CMC, the degree of flocculation shows that for the same concentration of binder in water, Na-alginate suspensions are more stable. The rheology measurements show that Na-alginate slurries have a higher viscosity than Na-CMC at a shear rate of 50 s-1 with that for a 1.5% of Na-alginate binder being 1.26 Pa·s while for Na-CMC it was for 0.20 Pa·s. The loss factor was lower for Na-Alginate, between 2 and 3 against between 2.9 and 3.3 for Na-CMC, showing a more developed network structure. en_US
dc.language.iso eng en_US
dc.publisher Wiley and Sons Ldt en_US
dc.relation.ispartofseries Journal of Applied Polymer Science;135 (17)
dc.relation.uri https://doi.org/10.1002/app.46217
dc.rights This is the author version of the following article: “Stability and rheological study of sodium carboxymethyl cellulose and alginate suspensions as binders for lithium ion batteries” Journal of Applied Polymer Science 2018, 135 (17), which has been published in final form at https://doi.org/10.1002/app.46217 This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. http://olabout.wiley.com/WileyCDA/Section/id-828039.html#terms
dc.subject biopolymers and renewable polymers en_US
dc.subject colloids
dc.subject composites
dc.subject composites
dc.subject nanoparticles
dc.subject nanowires and nanocrystals
dc.subject rheology
dc.title Stability and rheological study of sodium carboxymethyl cellulose and alginate suspensions as binders for lithium ion batteries en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.identifier.doi 10.1002/app.46217
dc.date.embargoEndDate 2019-01-23
dc.embargo.terms 2019-01-23 en_US
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US
dc.internal.rssid 2737404


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