Lithium ion battery anodes were produced and tested using gelatin and sodium alginate NaAlg biopolymers modified with a deep eutectic solvent DES Anodes created with these alternative binder systems showed comparable capacities and Coulombic efficiencies to cells assembled using commercial PVDF and CMC SBR binders Rate tests of these cells found that DES NaAlg possessed...
Thermal imaging done during discharging of four Nissan Leaf first generation large size pouch cells differently orientated during electric vehicle life R rotated oriented and F flat oriented Results coupled with other non destructive techniques and published in 8220 Correlative non destructive techniques to investigate ageing and orientation effects in automotive Li ion pouch cells...
One of the most commonly used battery cathode types is lithium iron phosphate LiFePO4 but this is rarely recycled due to its comparatively low value compared with the cost of processing It is however essential to ensure resource reuse particularly given the projected size of the lithium ion battery LIB market
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Large scale recycling and regeneration of lithium ion cathode materials is hindered by the complex mixture of chemistries often present in the waste stream We outline an efficient process for the separation and regeneration of phases within a blended cathode We demonstrate the efficacy of this approach using cathode material from a first generation 1...
Deep Eutectic Solvents DESs have been lauded as novel solvents but is there really a difference between them and concentrated aqueous brines They provide a method of adjusting the activity of water and chloride ions which can affect mass transport speciation and reactivity This study proposes a continuum of properties across concentrated ionic fluids and...
Niobium based anodes are gaining increasing popularity for application in high power lithium ion batteries due to their high theoretical capacities inherent safety at high current densities and long term stability Here we report the discovery and characterisation of a new Wadsley Roth niobate system Nb7Ti1 5Mo1 5O25 showing that it is isostructural with known...