The materials batteries have host compositional range. used for the negative and positive electrodes of rechargeable “lithium-ion” structures that can accommodate and release lithium over a wide In these batteries, carbon and intermetallic compounds have been widely exploited as the negative electrodes, and transition metal oxides as the positive electrodes. For a lithium-ion battery to perform...

Metal-ion batteries are systems for electrochemical energy conversion and storage with only one kind of ion shuttling between the negative positive electrode during discharge charge. This concept also known as rocking-chair battery has been made highly popular lithium-ion its most example. The principle can be applied other cations both mono- multivalent. might have implications advantages in t...

The spatial distribution of charge carriers in lithium ion batteries during current flow is of fundamental interest for a detailed understanding of transport properties and the development of strategies for future improvements of the electrolyte-electrode interface behaviour. In this work we explored the potential of (7)Li 1D in situ NMR imaging for the identification of concentration gradients...

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chelating resins based on polyacrylonitrile and diethylenetriamine (pan-dta) wereprepared through the simple reaction of polyacrylonitrile with various volume percents ofdiethylenetriamine (dta), (25, 50, 75 and 100). the prepared resins were applied to removeheavy metal ions such as cu(ii), zn(ii) and cd(ii) from aqueous solutions. the sorptionbehaviors of the resins for these metal ions were ...

While the homogenous binding of metal ions by a wide range of organic and inorganic ligands has been studied using numerous methods and comprehensive data of the homogenous association constants are available for many metal ions, ligands and solvent systems, complied data involving heterogeneous binding by surface bound ligands do not exist. Only few methods have been developed and applied for ...

nt matter & 2011 n.2011.11.001 thor. Tel.: +86 24 6. [email protected] ( ve equally contrib Abstract Recent progress on graphene/metal oxide composites as advanced electrode materials in lithium ion batteries (LIBs) and electrochemical capacitors (ECs) is described, highlighting the importance of synergistic effects between graphene and metal oxides and the beneficial role of graphene in composite...

The performance of novel solid state Thick-Film pH sensors for water quality sampling that are designed for deployment in remote catchment areas is described. These miniaturised screen printed planar pH sensors are an alternative to conventional glass pH electrodes that have many disadvantages such as high-cost, large size, mechanical fragility and limited shape. The approach adopted here for i...