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Abstract Despite many efforts devoted to explore novel electrode materials for lithium ion hybrid supercapacitors, the obtainable long-life cycling of existing anode materials are still inadequate for promising applications. This report demonstrates a new nanocomposite with TiNb 2 O 7 network nanostructure in situ anchored onto the holey graphene, which is designed as anode material for lithium ion hybrid supercapacitors. Impressively, electrochemical analyses show that the good rate performance (capacity retention of 73.5% from 0.05 to 5 A g−1) and long cycle life up to 1000 cycles at 1 A g−1 (a capacity retention of 91.5%) are attained. Furthermore, the lithium ion hybrid supercapacitor device consisting of this nanocomposite and activated carbon exhibits excellent cycling stability (90.2% of initial capacity after 3000 cycles), high energy density of 86.3 W h kg−1 (at 237.7 W kg−1) and high power density of 3.88 kW kg−1 (at 28.7 W h kg−1). This study ascribes the unprecedented performance to the high conductive holey graphene with abundant mesopores, the uniformly distributed TiNb 2 O 7 network nanostructure and the synergetic effect between them. Based on these findings, the presented nanocomposite has great potential in high performance lithium ion hybrid supercapacitors. Graphical abstract Image 1 Highlights • A novel composite of TiNb 2 O 7 network nanostructure and holey graphene was fabricated. • The long-term life with 91.5% capacity retention after 1000 cycles was obtained. • The Li-HSC device exhibits high energy density and excellent cycling stability. [ABSTRACT FROM AUTHOR]

MoS 2 is cognized as a promising Lithium-ion battery (LIB) anode material. However, its unsatisfied conductivity and instability hinder its rate performance and cycling stability. Herein, we design a simple strategy to prepare MoS 2 /N-doped carbon (denoted MoS 2 @N–C) nanotubes as anode materials for LIBs. The unique hybrid architecture composed of MoS 2 nanosheets and N–C nanotube achieves excellent electrochemical performance with an exceptional rate capacity (1338 mAh g−1 at 0.2 A g−1) and exceptionally stable cyclic performance (1411 mAh g−1 after 1000 cycles at 1.0 A g−1). The unique hybrid hollow architecture of MoS 2 @N–C provides a new pathway to designing hollow structures for high performance LIBs. [Display omitted] • MoS 2 @N–C nanotube was successfully developed by a facile template method. • The strong bonding between MoS 2 and N–C improves the structural stability. • MoS 2 @N–C nanotube exhibits an excellent cycle performance and rate capability. • The method can be extended to many high-performance MoS 2 composite anodes. [ABSTRACT FROM AUTHOR]