Open AccessOne‐dimensional bunched Ni‐V 2 O 3 @C@CNT for superior performance lithium‐ion batteries and hybrid capacitors
Author(s) -
Bai Youcun
Publication year - 2021
Publication title -
nano select
Language(s) - English
Resource type - Journals
ISSN - 2688-4011
DOI - 10.1002/nano.202000208
Subject(s) - materials science , anode , carbon nanotube , electrolyte , capacitor , electrode , nanotechnology , lithium (medication) , separator (oil production) , porosity , nanoparticle , chemical engineering , composite material , voltage , electrical engineering , chemistry , medicine , physics , engineering , endocrinology , thermodynamics
In this paper, by using the bamboo‐like carbon nanotubes (BCNTs) from sulfonated polymer nanotubes (SPNTs), the 3D porous sugar‐coated haws stick‐like composites decorated with V 2 O 3 and Ni nanoparticles (NV@C@CNT) have been prepared via a facile solution method and subsequent annealing reactions. The porous carbon matrix derived from the SPNTs provides a continuous highly conductive network to facilitate the fast charge transfer and form a stable solid electrolyte interface film. This engineering protocol toward electrode architectures/configurations endows integrated NV@C@CNT anodes with large specific capacity (895.6 mAh g –1 at 0.2 A g –1 after 100 cycles), good operation stability, excellent rate capabilities, and prolonged cyclic life span. To prove their potential real applications, we have established the NV@C@CNT//FCNT lithium ion capacitors (LICs), which is capable of showing high energy densities, power densities, and long cycle stability. This work provides a scalable, simple, and efficient evolutionary method for the production of NV@C@CNT electrode materials, providing useful inspiration and guidance for the anodic applications of metal oxides in next‐generation power sources.