Behaviour of LixV6O13 and LixTiS2 composite electrodes incorporating polyethylene oxide based electrolytes

摘要: Abstract Preliminary initial discharge experiments at 110°C using current densities of 500ωA/cm 2 suggested that the optimal composition V 6 O 13 insertion electrodes involved additions carbon black (5 wt %) without any polymeric electrolyte component [LiCF 3 SO -(PEO) 8 ] However subsequent cycling 120°C and 100ωA/cm gave disappointing results with only 10–20% theoretical capacity being available after 2–3 cycles. Three electrode A.C. impedance measurements revealed significant interfacial values which rapidly decreased increasing temperature so 146°C cells were exhibiting an anticipated around 40–50% value. The performance incorporating TiS 15 % was more satisfactory in 40% initially C / 10 rates 110°C. After 250 cycles these had progressively reduced to about 25%. These are discussed reference thermodynamic transport data relevant models developed for dynamic aspects materials. An additional feature promising lithium contact electrolyte.