MoS₂/carbon composites prepared by ball-milling and pyrolysis for the high-rate and stable anode of lithium ion capacitors.

ABSTRACT: Lithium ion capacitors (LICs), bridging the advantages of batteries and electrochemical capacitors, are regarded as one of the most promising energy storage devices. Nevertheless, it is always limited by the anodes that accompany with low capacity and poor rate performance. Here, we develop a versatile and scalable method including ball-milling and pyrolysis to synthesize exfoliated MoS₂ supported by N-doped carbon matrix derived from chitosan, which is encapsulated by pitch-derived carbon shells (MoS₂/CP). Because the carbon matrix with high nitrogen content can improve the electron conductivity, the robust carbon shells can suppress the volume expansion during cycles, and the sufficient exfoliation of lamellar MoS₂ can reduce the ions transfer paths, the

SUBMITTER: Wang C 

PROVIDER: S-EPMC9076586 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature