Thermal and electrochemical stability of cathode materials in solid polymer electrolyte

Solid polymer electrolyte comprised of lithium salt/ether functionalized ammonium-based polymeric ionic liquid with bis(fluorosulfonyl)imide

“…The [58], and the oxidation of FSI − anion occurred at lower potentials than that of TFSI − anion during the anodic scan, as already observed in our previous study [29,59], thus made the overall oxidization of the LiFSI/P[C 5 O 2 N 11,MA ]FSI electrolyte initiate at a lower potential. However, as seen in Fig.…”

“…These peaks might be associated with parasitic processes that could include the reaction of the TFSI − anion, the dissolution of Li in the electrode support and/or reaction of impurities[58,60]. In addition, the deposition and dissolution of Li on and from the SS substrate are observed between −0.5 and 0.2 V in both voltammograms, and this process is more sluggish in the LiTFSI/P[C 5 O 2 N 11,MA ]TFSI electrolyte than in the FSI-based one, which would be attributable to lower ionic conductivity(Fig.…”

Improved lithium-metal/vanadium pentoxide polymer battery incorporating crosslinked ternary polymer electrolyte with N-butyl-N-methylpyrrolidinium bis(perfluoromethanesulfonyl)imide

“…In addition, a limited exothermic process starts around 140 C (i.e. similarly to PEO stability in O 2 [37]), possibly linked to reactions between PEO and V 2 O 5 [43] or carbon additive surface groups. Despite this reactivity, the 3rd scan is similar to the second, with, however, no obvious exothermic reactions below 180e190 C. Thus, even if minor surface reactions take place at the particle/electrolyte interface during the second scan, the system does not seem significantly modified (nor generates gas) up to ca.…”

“…However, the performance of high voltage oxides such as LiNi 0.8 Co 0.8 Al 0.05 O 2 and LiNi 0.33 Mn 0.33 Co 0.33 O 2 show severe decays, given their high operating potentials which are not compatible with PEO-based anodic stability in contact with particulate electrodes [42,43].…”

Hydrothermal Synthesis of Al/Cr-doped V6O13as Cathode Material for Lithium-ion Battery

“…These compounds had partially filled d-orbitals which mean that a particular electrochemical property [1]. Among them, V 6 O 13 become the candidate of high performance cathode materials for lithium ion batteries because it theoretical specific capacity was high (420mAh/g) and electronic Conductivity [2,3].…”