Poly(AN-co-PEGMA)/hBN/NaClO4 composite electrolytes for sodium ion battery

Superconcentrated electrolytes for a high-voltage lithium-ion battery

Finding a viable electrolyte for next-generation 5 V-class lithium-ion batteries is of primary importance. A long-standing obstacle has been metal-ion dissolution at high voltages. The LiPF6 salt in conventional electrolytes is chemically unstable, which accelerates transition metal dissolution of the electrode material, yet beneficially suppresses oxidative dissolution of the aluminium current...

Conjugated polymer energy level shifts in lithium-ion battery electrolytes.

The ionization potentials (IPs) and electron affinities (EAs) of widely used conjugated polymers are evaluated by cyclic voltammetry (CV) in conventional electrochemical and lithium-ion battery media, and also by ultraviolet photoelectron spectroscopy (UPS) in vacuo. By comparing the data obtained in the different systems, it is found that the IPs of the conjugated polymer films determined by c...

Silicon Based Composite Anode for Lithium Ion Battery

Glucose-Treated Manganese Hexacyanoferrate for Sodium-Ion Secondary Battery

Manganese hexacyanoferrate (Mn-PBA) is a promising cathode material for sodium-ion secondary battery (SIB) with high average voltage (=3.4 V) against Na. Here, we find that the thermal decomposition of glucose modifies the surface state of Mn-PBA, without affecting the bulk crystal structure. The glucose treatment significantly improves the rate properties of Mn-PBA in SIB. The critical dischar...

Fabrication of Na2FeP2O7 glass-ceramics for sodium ion battery

New cathode candidate Na2FeP2O7 for rechargeable sodium ion second battery was successfully prepared by glass-ceramics method. The precursor glass, which is same composition in Na2FeP2O7, was prepared by melt-quenching method. Na2FeP2O7 was obtained by heat treatment of precursor glass powder with 10% glucose addition as reduction agent of Fe3+ at 620°C for 3 h in electric furnace. Na2FeP2O7 ha...