Energy storage graphite capacity

What is the specific capacity of graphite?

The theoretical specific capacity of graphite is 372 mAh·g -1 , and its energy density is higher than those of most embedded cathode materials.

What is the energy storage mechanism of graphite anode?

The energy storage mechanism, i.e. the lithium storage mechanism, of graphite anode involves the intercalation and de-intercalation of Li ions, forming a series of graphite intercalation compounds (GICs). Extensive efforts have been engaged in the mechanism investigation and performance enhancement of Li-GIC in the past three decades.

Can graphite improve lithium storage performance?

Recent research indicates that the lithium storage performance of graphite can be further improved, demonstrating the promising perspective of graphite and in future advanced LIBs for electric vehicles and grid-scale energy storage stations.

Why is graphite a good battery material?

And because of its low de−/lithiation potential and specific capacity of 372 mAh g −1 (theory) , graphite-based anode material greatly improves the energy density of the battery. As early as 1976 , researchers began to study the reversible intercalation behavior of lithium ions in graphite.

What is the reversible lithium storage capacity of graphite?

Its working principle is based on the intercalation of lithium ions. Upon electrochemical lithium intercalation during charging, graphite reaches its maximum reversible Li storage capacity at a lithium-to-carbon ratio of 1:6 (LiC 6). Theoretically, this compound yields a capacity of 372 mAh/g, commonly defining 100% state of charge (SOC) [8–10].

What is the specific capacity of a graphite anode?

The measured specific capacity is 1702.9 mAh·g −1, which is much higher than that of single graphite electrode. In addition, doping nitrogen, sulfur, iron, nickel, copper and zinc into the graphite material can also significantly improve the specific capacity of the anode.