| abstract |
A Lithium-Ion battery characterised in that it comprises: a. an ionic liquid consisting of a cationic portion of quaternary ammonium of formula R 1 N+R 2 R 3 R 4 where: R 1 is a linear or branched alkyl with from 2 to 5 carbon atoms, optionally substituted with an ethyl alkoxy group with from 1 to 3 carbon atoms; R 2 , R 3 e R 4 , being the same or different, are a linear or branched alkyl with from 2 to 5 carbon atoms, or R 3 and R 4 , together with the nitrous atom to which they are bound form a pyrrolidinium or piperidinium; b. an anionic part, wherein the anion is selected form the group consisting of: bis(methantrifluoridesulphonyl)imide, tetrafluorideborate, esafluoridephosphate; c. a lithium salt selected form the group consisting of lithium N,N- (bis(methantrifluoridesulphonyl)imide, lithium tetrafluorideborate, lithium esafluoridephosphate and lithium bisoxalateborate; is disclosed. The battery is safe thanks to the high thermal stability of the ionic liquid as used in the present invention, without additives, as flame retardant or other additives, being suitable for the use in the field of mobile electronic, sustainable transportation and Renewable energy. |