Ru nanoparticles deposited on a conductive support indium tin oxide (Ru/ITO) were applied as carbon-free cathode in nonaqueous Li–O2 battery. The battery with Ru/ITO showed much lower charging overpotentials and better cycling performance at 0.15 mA/cm2 than those Super P (SP) SP loaded (Ru/SP) the cathodes. can effectively reduce formation of Li2CO3 or other Li carbonates discharging process, which cannot be completely decomposed upon charging, comparison carbon based cathode. improved...

Effects of modification the electrode/electrolyte interface with thin films on impedance profiles and rate capabilities all-solid-state glass ceramic/ cells were investigated. Large resistance was observed at –electrode/sulfide–electrolyte in cells. The interfacial decreased by oxide coatings ; effective a lithium-ion conductive glassy film an insulative film. coating more effectively when amounts increased from (film thickness ca. ). However, exhibited higher than noncoating because thick...

Li–air batteries have received much attention in the past several years because of their large theoretical specific energy density, but challenges with electrolytes are main hindrance for development batteries. Particularly, electrolyte decomposition and reactivity discharge product Li2O2 non-aqueous (including organic solvents ionic liquids) severe. The solid-state inorganic polymer electrolytes), which considered to be stable compatible Li2O2, will promising alternatives vulnerable...

The all-solid-state lithium–air cells using lithium anode, the Li1+xAlyGe2−y(PO4)3 inorganic solid electrolyte and air electrode composed of carbon nanotubes were constructed. electrochemical performance reaction mechanism investigated in atmosphere. successful discharging charging. first discharge charge capacities about 1700 mA h g−1 900 g−1, respectively, at a current density 500 voltage range 2.0–4.2 V (vs. Li/Li+). observed redox potential around 3.1 Li) indicated that is formation...

The softening behavior of a 80Li2S·20P2S5 (mol%) glass electrolyte was investigated and favorable electrode–electrolyte interface fabricated by sticking the supercooled liquid state on active material particles. A dense pellet without an obvious grain boundary or any voids prepared means hot press. electrical conductivity 8.8 × 10−4 S cm−1 at room temperature. Sticking solid Li4Ti5O12 particles increased contact area utilization in all-solid-state cells. However, LiCoO2 reacted with during...

Abstract Solid‐state lithium–air cells using lithium anode, a polymer electrolyte, Li 1+ x + y Al (Ti, Ge) 2− Si P 3− O 12 inorganic solid and an air electrode composed of carbon nanotubes electrolyte are constructed their electrochemical properties investigated. The show reversible capacity about 400 mA h g −1 during the first few cycles. rate performance impedance measurements also examined. large cell resistance, which mainly comes from interfacial resistance between limits performance....

The all-solid-state Li-air battery has been fabricated, which is constructed by a lithium foil anode, NASICON-type solid state electrolyte Li1+xAlyGe2-y(PO4)3 (LAGP) and single-walled carbon nanotubes (SWCNTs)/LAGP nanoparticles composite as air electrode. Its electrochemical performance was investigated in atmosphere. Particularly, this exhibited larger capacity about 2800 mAh g(-1) for the first cycle, while comparatively with multiwalled (MWCNTs)/LAGP cathode had of only 1700 g(-1). Also,...

Development of rate capability is one the most important issues to be solved in all-solid-state lithium secondary batteries. The electrochemical performance these batteries has been highly improved by coating particles with thin film. interfacial resistance between and glass-ceramic electrolyte was decreased those coatings. capabilities cells using coated were superior that cell noncoated . more effective than enhancing performance, suggesting lithium-ion conductivity materials for high-rate...

There is need to develop high energy storage devices with safety satisfy the growing industrial demands. Here, we show potential realize such batteries by assembling a lithium-oxygen cell using an inorganic solid electrolyte without any flammable liquid or polymer materials. The battery Li1.575Al0.5Ge1.5(PO4)3 was examined in pure oxygen atmosphere from room temperature 120 °C. works at and first full discharge capacity of 1420 mAh g(-1) 10 mA (based on mass carbon material air electrode)...

Nickel sulfide nanoparticles were synthesized by thermal decomposition of nickel acetylacetonate in a mixed solution 1-dodecanethiol and high-boiling solvent. The crystal phase morphology the obtained samples changing reaction time, temperature, kind solvents characterized X-ray diffraction measurements transmission electron microscopy. By using oleylamine as coordinating solvent, Ni9S8 nanorods with size about 100 nm at 280 °C for 5 hours. On other hand, NiS 50 1-octadecene noncoordinating...

LiCoO2 particles were coated with cobalt and nickel sulfides by thermal decomposition of their respective diethyldithiocarbamato complexes. All-solid-state lithium secondary batteries fabricated using the positive electrode a Li2S–P2S5 solid electrolyte. The coatings reduced interfacial resistance between electrolyte all-solid-state after first charge, resulting in an improved cell performance. NiS-coated was charged discharged at high rate 10 C. deterioration interface electrolyte,...

A strategy to use a reactive process using ultrasonication has been suggested for the ultrafast fabrication of Li metal–inorganic solid electrolyte interface.

particles of various sizes were prepared by a solution process and applied to the electrodes for all-solid-state lithium rechargeable batteries. The was monodispersed with controlled from about . Their electrochemical properties examined cells highly conductive solid electrolytes influences particle size on performance investigated. first discharge capacities increased decreasing cell using smallest showed highest capacity charge-discharge reaction mechanism in investigated means X-ray...

All-solid-state cells with the (mol %) solid electrolyte were assembled. Cycle and rate performances evaluated. The cell showed first discharge capacity of at a current density retained reversible after 100 cycles. decreased increase in density, overpotential beginning was observed. about . To identify cause overpotential, impedance measurements carried out, resistance components analyzed by changing state charge evaluating an all-solid-state symmetric cell. interfacial between electrode...

Abstract All-solid-state batteries using Li2S–P2S5 solid electrolyte and LiFePO4 glass ceramic electrode particles were constructed. The charged discharged with reversible capacity of 110 mA h g−1. Amorphous oxide surface layer formed on improved interfacial properties between electrolytes.

The electrochemical performance of all-solid-state cells using Mo-S Chevrel-phase compound in the wide operating temperature range from −30°C to 160°C was investigated. showed capacity about 200 mAh g−1, which is higher than theoretical CuxMo6S8-y active material at temperatures over 100°C. TEM observation electrodes after cycle tests high indicated that Cu diffused into Li2S-P2S5 solid electrolytes and this would be mainly responsible for excess a poor cyclability temperatures. use Mo6S8-y...

The reaction and degradation mechanism of the all-solid-state Li–air cell during first discharge–charge process in air atmosphere was investigated.