Issue 28, 2020

Bi-MOF derived micro/meso-porous Bi@C nanoplates for high performance lithium-ion batteries

Abstract

Micro/meso-porous Bi@C nanoplates are synthesized by pyrolyzing Bi-based metal–organic frameworks (MOFs) prepared by a microwave-assisted hydrothermal method to overcome huge volume expansion and pulverization of anode materials during battery operation. The Bi@C nanoplates are composed of ∼10–50 nm Bi nanoparticles in an amorphous carbon shell. The material shows very high capacity (556 mA h g−1) after 100 cycles at 100 mA g−1 and good cycling performance. Moreover, the Bi@C nanoplates perform well at high current densities and have excellent cyclic stability; their capacity is 308 mA h g−1 after 50 cycles and 200 mA h g−1 after 1000 cycles at 3000 mA g−1. The outstanding performance of this anode is due to the nanosized Bi and amorphous carbon shell. The nanosized Bi reduces the diffusion length of Li ions, while the amorphous carbon shell improves the electrical conductivity of the anode and also restrains the pulverization and aggregation of the metal during cycling. The proposed hierarchical micro/meso-porous materials derived from MOFs are a new type of nanostructures that can aid the development of novel Bi-based anodes for LIBs.

Graphical abstract: Bi-MOF derived micro/meso-porous Bi@C nanoplates for high performance lithium-ion batteries

Supplementary files

Article information

Article type
Paper
Submitted
24 Сәу. 2020
Accepted
21 Мау. 2020
First published
22 Мау. 2020

Nanoscale, 2020,12, 15214-15221

Bi-MOF derived micro/meso-porous Bi@C nanoplates for high performance lithium-ion batteries

M. Kim, M. Kim, J. Park, J. Kim, C. Ahn, A. Jin, J. Mun and Y. Sung, Nanoscale, 2020, 12, 15214 DOI: 10.1039/D0NR03219K

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements