01938nas a2200217   4500008004100000022001400041245008300055210006900138260000800207300001100215490000600226520122800232653002001460653002401480653002601504653001801530653002201548100002201570700001701592856011101609       2018                        eng d  a2053-159100aCo9Se8 nanoparticles as high capacity anode material for lithium-ion batteries0 aCo9Se8 nanoparticles as high capacity anode material for lithium  cJUL  a0755100 v53 a<p>Present investigation deal with the facile synthesis of Co9Se8 nanoparticles (NPs) and their application as the potential anode for lithium-ion battery (LIB). The primary size of the Co9Se8 NPs can be achieved between 10 similar to 25 nm while the secondary cluster size ranging from 150 similar to 200 nm as observed by transmission electron microscope (TEM). The specific capacity of Co9Se8 NPs LIB anode can reach around similar to 610 mAhg(-1) during charging (lithium ion released from Co9Se8 nanoparticles), and -730 mAhg(-1) during discharging (lithium ion intercalated) at an applied current density of similar to 100 mAg(-1). These values are significantly higher than that of the commercial graphite anode (theoretical capacity similar to 372 mAhg(-1)). The irreversibility of Co9Se8 anode (similar to 15%) is also significantly lower than that of most metal oxides and silicon-based anodes (irreversibility ranging between 30 similar to 50% or higher for Si). The reason for superior specific capacity and low irreversibility compared to metal oxides and silicon-based materials could be owing to the stable nano-cluster size which help to reduce the diffusion path and internal resistance to lithium ion.</p>10airreversibility10alithium-ion battery10alithium-ion diffusion10aNanoparticles10aspecific capacity1 aKumar, Pushpendra1 aHu, Lung-Hao  uhttps://library.ncl.res.in/content/co9se8-nanoparticles-high-capacity-anode-material-lithium-ion-batteries02330nas a2200313   4500008004100000022001400041245013600055210006900191260000900260490000700269520122700276653002701503653002501530653002501555653002501580653002201605653002201627100001601649700002601665700002001691700002001711700003201731700002601763700002901789700001901818700002501837700002301862856013101885       2023                        eng d  a2352-152X00aExceptional cyclability of thermally stable PVdF-co-HFP/SiO<sub>2</sub> nanocomposite polymer electrolytes for sodium ion batteries0 aExceptional cyclability of thermally stable PVdFcoHFPSiOsub2sub   cDEC 0 v733 a<p>
	Thermally stable composite polymer electrolyte (CPE) devising PVdF-co-HFP polymer with in-situ generated silica (SiO2) as filler is synthesised via non-solvent- induced phase inversion technique. The filler loading of in-situ synthesised silica in PVdF-co-HFP is varied from 0 to 9 wt% and its morphological, thermal and electrochemical characterization is carried out. Among the different composite electrolytes, the PVdF-co-HFP containing 6 wt% SiO2 shows the uniform microporous structure with a highest porosity (84 %), surface area (784.14 m(2) g(-1)), electrolyte uptake (262 %) and electrolyte retention value (0.48). The incorporation of in-situ SiO2 on CPE shows not only the enhancement in thermal stability but also reduced thermal shrinkage with an increase in the filler content. The electrochemical studies of PVdF-co-HFP containing 6 wt% SiO2 shows a higher ionic conductivity (0.71 mS cm(-1)) and potential stability &gt;4.5 V verses Na/Na+. The Na-ion half-cells assembled with PVdF-co-HFP/SiO2 composite electrolyte show a specific capacity of similar to 120 mAh g(-1) at 0.3C rate in room temperature and a stable cycle performance with a Coulombic efficiency of around 100 % for 200 cycles.</p>
10aComposite electrolytes10aCoulombic efficiency10apolymer electrolytes10aSodium ion batteries10aspecific capacity10athermal stability1 aDas, Akhila1 aMelepurakkal, Amrutha1 aSreeram, Pranav1 aGireesh, K., T.1 aBalakrishnan, Neethu, T. M.1 aFatima, M., J. Jabeen1 aPullanchiyodan, Abhilash1 aAhn, Jou-Hyeon1 aShelke, Manjusha, V.1 aRaghavan, Prasanth  uhttps://library.ncl.res.in/content/exceptional-cyclability-thermally-stable-pvdf-co-hfpsio2-nanocomposite-polymer-electrolytes