Bio-based poly(benzimidazole--amide)-derived N, O co-doped carbons as fast-charging anodes for lithium-ion batteries.

Lithium-ion batteries (LIBs) that can be charged faster while delivering high capacity are currently in significant demand, especially for electric vehicle applications. In this context, this study introduces a less-explored subject: nitrogen and oxygen dual-doped carbons derived from bio-based copolymers, specifically poly(benzimidazole--amide). The synthesis involved varying proportions of benzimidazole to amide, namely, 8.

Microbial pyrazine diamine is a novel electrolyte additive that shields high-voltage LiNiCoMnO cathodes.

The uncontrolled oxidative decomposition of electrolyte while operating at high potential (> 4.2 V vs Li/Li) severely affects the performance of high-energy density transition metal oxide-based materials as cathodes in Li-ion batteries. To restrict this degradative response of electrolyte species, the need for functional molecules as electrolyte additives that can restrict the electrolytic decomposition is imminent.

Extremely fast charging lithium-ion battery using bio-based polymer-derived heavily nitrogen doped carbon.

Extremely high nitrogen doped carbon was designed by facile pyrolysis of bio-based poly(2,5-benzimidazole) as a single source of nitrogen and carbon. For the first time ever, a carbon-based anode with ∼17 wt% of nitrogen doping with extremely fast charging (XFC) capability at 18.6 A g and ultralong cyclability (3000 cycles) with 90% capacity retention was investigated.

Few-Layered MoS/Acetylene Black Composite as an Efficient Anode Material for Lithium-Ion Batteries.

Novel MoS/acetylene black (AB) composite was developed using a single-step hydrothermal method. A systematic characterization revealed a few-layered, ultrathin MoS grown on the surface of AB. The inclusion of AB was found to increase the capacity of the composite and achieve discharging capacity of 1813 mAhg.

Platinum decorated functionalized defective acetylene black; a promising cathode material for the oxygen reduction reaction.

A novel single-pot method to exfoliate and functionalize acetylene black is proposed. The deliberate functionalization was found to enhance the intrinsic oxygen reduction efficiency along with the nucleation and growth of platinum nano-particles on the surface. The resulting material showed enormously high oxygen reduction reactivity compared to its commercial counterparts.