Na-doped LiMnPO4 as an electrode material for enhanced lithium ion batteries

Abstract

We report the influence of sodium (Na)-incorporated lithium manganese phosphate as an active material on its performance in electrochemical study for energy storage application. Li 1−x Na x MnPO 4 with different mole ratios (0.00 ≤ x ≤ 0.05) of sodium is synthesized via a simple sol-gel method. The discharge capacity of Li 1−x Na x MnPO 4 varies with respect to mole ratios of sodium incorporated. The maximum discharge capacity of 92.45 mAh g −1 is observed in Li 0.97 Na 0.03 MnPO 4 , which is higher than that of pristine LiMnPO 4 and other Na-incorporated LiMnPO 4. The maximum cyclic stability is found to be 84.15% up to 60 cycles. These results demonstrate that Li 0.97 Na 0.03 MnPO 4 plays a significant role in future energy storage application.

Solid terpolymer electrolyte based on poly(vinyl butyral‐co‐vinyl alcohol‐co‐vinyl acetate) incorporated with lithium salt and tetraglyme for EDLCs

“…Nanofillers depend on the size and concentration of the particles. Larger particles will remain randomly oriented in the polymer and higher concentration of particles may lead to the particle aggregations which can block the pathways for ions mobility . While for ionic liquids, they have high viscosity at room temperature and lower ionic conductivity than aqueous electrolytes.…”