The solubility of lithium salts, found in solid-electrolyte interface (SEI) films on the anode surface in lithium ion battery cells, has been examined in organic solvents through atomistic computer simulations. The salts included lithium oxide (Li2O), lithium carbonate (Li2CO3), lithium oxalate ([LiCO2]2), lithium fluoride (LiF), lithium hydroxide (LiOH), lithium methoxide (LiOCH3), lithium met...

Materials. Ethylbromoacetate (97%), potassium carbonate (99%), diethyl ether (99.8%), ethylenediamine (99%), dichloromethane (99.6%), sodium triacetoxyborohydride (97%), sodium borohydride (98%), propionaldehyde (97%), poly(ethylene glycol) methyl ether thiol (PEG-SH, average mw 2000), formic acid (96%), formaldehyde (37% wt in H2O), sodium hydroxide(97%), propionaldehyde (97%), trifluoroacetic...

The development of highly flexible fibre batteries based on conducting polymers is described. The performance of cells with polypyrrole–hexafluorophosphate (PPy/PF6) and polypyrrole–polystyrenesulfonate (PPy/PSS) is evaluated. Based on the results, fibre batteries consisting of a PPy/PF6 cathode and a PPy/PSS anode are fabricated and tested in an electrolyte of 1M LiPF6 in a mixture of ethylene...

The electrochemical performance of a Ti Ni Nb electrode in different solutions has been studied. The Ti Ni Nb electrode can 46 45 9 46 45 9 Ž Ž . absorbrdesorb hydrogen in 3 M KOH aqueous and lithium in non-aqueous solution 1 M LiClO dissolved in a 50r50 vol.% vro 4 . mixture of ethylene carbonate and diethyl carbonate , respectively. It is assumed that lithium and hydrogen are incorporated in ...

We investigate the transition from unbanded to banded spherulitic growth in mixtures of ethylene carbonate with polyacrylonitrile. By carefully considering systematic errors, we show that the band spacing diverges with a power-law form showing scaling over nearly two decades. We also observe that the bands disorder as the transition point is approached. The critical exponent is nonclassical. On...

It is well known that when propylene carbonate (PC) is used as the primary solvent with common inorganic salts like LiPF6 there is essentially continuous electrolyte reduction with a graphite electrode at ca. 0.9 V vs. Li/Li, accompanied by gassing and graphite exfoliation. However, co-intercalation and subsequent reduction occurs only with PC and not the chemically closely related solvent ethy...

Dimethyl carbonate (DMC) is considered as an environmentally benign chemical due to negligible ecotoxicity, low bioaccumulation, and low persistence. However, the traditional process of DMC synthesis via phosgene and methanol is limited in industry owing to the toxic raw material involved. Thus, environmentally friendly phosgene-free processes for DMC production have been proposed and developed...