Enhanced electrochemical performance of Fe-doping Li4Ti5O12 anode material for energy storage device

Kang, Jingrui; Dong, Guifang; Li, Zongfeng; Li, Lei

doi:10.1007/s11696-019-01002-6

Cited by 2 publications

(1 citation statement)

References 39 publications

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“…To eliminate the limitations caused by graphite anodes, several targeted inorganic materials, mainly including silicon-based materials and transition-metal oxides (Li 4 Ti 5 O 12 , TiO 2 , etc. ), have been extensively explored as anodes for LIBs. − However, these substances still suffer from some shortcomings such as limited practical capacity, rapid capacity loss during cycling, high costs associated with restricted mineral resources, and serious environmental pollution caused by toxic metals, which hinders their large-scale commercialization. Therefore, it is imperative to seek new “green and sustainable” anode materials featuring excellent cycling stability and high specific capacity. , …”

Section: Introductionmentioning

confidence: 99%

Electrochemical Properties of a Multicarbonyl Polyimide Superstructure as a Hierarchically Porous Organic Anode for Lithium-Ion Batteries

Wang

Zhou

et al. 2021

ACS Appl. Energy Mater.

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Organic carbonyl compounds have been widely investigated as a promising candidate for graphite anodes in lithiumion batteries (LIBs) because of their high capacity, low cost, and diverse structure. Here, a multicarbonyl polyimide derivative bearing an anhydride with benzoquinone was designed and synthesized by a simple hydrothermal method. Integrating flexible structural design with careful regulation of polymerization conditions, the polyimide derivative exhibits an unprecedented threedimensional microsphere-like superstructure constructed by interconnected two-dimensional nanosheets, which is beneficial to trigger interfacial energy storage and improve storage capacity. When explored as an anode material for LIBs, the polyimide derivative delivers an outstanding reversible capacity (992 mAh/g at 100 mA/g), good rate capability (268 mAh/g at 2 A/g), and excellent cycle stability (465 mAh/g after 150 cycles at 0.5 A/g). Based on density functional theory calculations and experimental results, a 24 Li-storage mechanism with a five-step lithiation/delithiation process is proposed.

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