Energy Efficient and Fast Charging Nitrogen Doped Carbon Anodes Derived from BIAN‐melamine Based Porous Organic Polymer for Lithium‐ion Batteries

Abstract

Fast charging anodes for lithium‐ion batteries are most sought‐after materials currently, owing to the increasing energy requirements of the world. In this context, carbonaceous materials are found to deliver faster kinetic performance in lithium‐ion batteries. In this study, a single source of carbon and nitrogen was used as a precursor material to synthesize N‐doped carbon (PyPBM600 and PyPBM800). The effect of synthetic conditions on the morphology of the material and in turn on the electrochemical properties is presented. Anodic half‐cells with PyPBM600 and PyPBM800 anodes showed excellent rate capability and capacity till 4 A/g for over 1000 cycles. Furthermore, full cell fabricated with PyPBM800 delivered extremely fast charging characteristics with 15‐minute charging time, a reversible capacity of 1.2 mAh with a columbic efficiency of 99.8% and an enticing voltage and energy efficiencies of 90% for 300 cycles.

Robust Electrochemical Performance of LIBs Using a Polymethylene-Based High-Density Carboxylic Acid Binder in Graphite Anodes

“…Water-soluble PFA polymer offers the potential to form thin and stable SEI by preventing electrode cracking during cycling and providing better adhesion to electrode components due to the high concentration of functional groups. As a result, they would enhance the overall electrochemical performance of LIBs. − …”