Unknown

Dataset Information

0

Sea Urchin-like Si@MnO2@rGO as Anodes for High-Performance Lithium-Ion Batteries.


ABSTRACT: Si is a promising material for applications as a high-capacity anode material of lithium-ion batteries. However, volume expansion, poor electrical conductivity, and a short cycle life during the charging/discharging process limit the commercial use. In this paper, new ternary composites of sea urchin-like Si@MnO2@reduced graphene oxide (rGO) prepared by a simple, low-cost chemical method are presented. These can effectively reduce the volume change of Si, extend the cycle life, and increase the lithium-ion battery capacity due to the dual protection of MnO2 and rGO. The sea urchin-like Si@MnO2@rGO anode shows a discharge specific capacity of 1282.72 mAh g-1 under a test current of 1 A g-1 after 1000 cycles and excellent chemical performance at different current densities. Moreover, the volume expansion of sea urchin-like Si@MnO2@rGO anode material is ~50% after 150 cycles, which is much less than the volume expansion of Si (300%). This anode material is economical and environmentally friendly and this work made efforts to develop efficient methods to store clean energy and achieve carbon neutrality.

SUBMITTER: Liu J 

PROVIDER: S-EPMC8778068 | biostudies-literature |

REPOSITORIES: biostudies-literature

Similar Datasets

| S-EPMC9919348 | biostudies-literature
| S-EPMC6787263 | biostudies-literature
| S-EPMC3610094 | biostudies-literature
| S-EPMC7142261 | biostudies-literature
| S-EPMC7486292 | biostudies-literature
| S-EPMC6835662 | biostudies-literature
| S-EPMC3986728 | biostudies-other
| S-EPMC6777295 | biostudies-literature
| S-EPMC5316999 | biostudies-literature
| S-EPMC6645015 | biostudies-literature