LiMnPO4 with a morphology controlled by carbonate anions was prepared via a simple template-free hydrothermal reaction; the LiMnPO4 shows a promising electrochemical activity as cathode material for lithium ion batteries.

Ion physics forms the basis for numerous modern technologies and research directions such as microelectronics, material research, analytics or high-energy physics. The reason for the broad range applications of ion physics lies in the ions characteristics: -The ions possess a mass, which makes a direct energy transfer possible to the solid atoms (flexible energy transmission); -The velocity of ...

Bioelectrochemical system (BES) pH imbalances develop due to anodic proton-generating oxidation reactions and cathodic hydroxide-ion-generating reduction reactions. Until now, workers added unsustainable buffers to reduce the pH difference between the anode and cathode because the pH imbalance contributes to BES potential losses and, therefore, power losses. Here, we report that adding carbon d...

Field Ion Microscopy (FIM) and Scanning Tunneling Microscopy (STM) have found a wide application in nanotechnology. These microscopes use a metallic nanotip for image acquisition. Resolution of FIM and STM images depends largely on the radius of nanotip apex; the smaller the radius the higher the resolution. In this research, for tungsten nanotip fabrication, electrochemical etching of tungsten...

DOI: 10.1002/aenm.201701189 the availability issue of lithium as a natural source, along with potential safety and environmental risks brought by the inflammable and toxic nonaqueous electrolytes. In contrast, sodium (Na) is highly abundant and readily accessible in both earth-crust and ocean. An aqueous Na-ion batteries would be far more economically competitive than LIBs for large-format appl...

Degradation of gold contacts in micro-switches was studied under an extensive range of operation conditions including high-electric-field ac/dc hot switching, low-electric-field hot switching and cold switching. Tests were conducted in a unique experimental switching operation set-up. Gold micro-contacts were characterized by an atomic force microscope. It was found that a unique material trans...

Lithium iron orthosilicate (Li2FeSiO4) with Pmn21 space group is theoritically investigated as a chathode material of Li-ion batteries using density functional theory (DFT) calculations. PBE-GGA (+USIC), WC-GGA, L(S)DA (+USIC) and mBJ+LDA(GGA) methods under spin-polarization ferromagnetic (FM) and anti-ferromagnetic (AFM) procedure are used to investigate the material properties, includin...

A new electromigration method for the separation of isotopes is described. This method ba ed on the pririciple of setting up a flow of electrol yte tlu'ough a packed column in a direction counttlJ"current to the flow of the i otopic ions being separated and at a rate intermediate between the velocities of these ions. Under these conditions, the faster moving ions will make headway against t he ...

A new type of a pulsed ion beam accelerator named “bipolar pulse accelerator (BPA) ”has been proposed to improve the purity of the intense pulsed ion beam. In order to confirm the principle of the BPA, we have developed a bipolar pulse generator and a prototype of the accelerator. When the bipolar pulse generator was operated at 70 % of the full charge condition, the bipolar pulse with the firs...