Synergistically enhanced sodium/potassium ion storage performance of SnSb alloy particles confined in three-dimensional
- PDF / 1,869,589 Bytes
- 10 Pages / 595.276 x 790.866 pts Page_size
- 13 Downloads / 160 Views
ORIGINAL PAPER
Synergistically enhanced sodium/potassium ion storage performance of SnSb alloy particles confined in three-dimensional carbon framework Hanqing Zhao 1 & Chenfei Zhuang 1 & Junmin Xu 1 & Zhuangfei Zhang 1 & Weixia Shen 1 & Haibing Tang 2 & Ye Wang 1 & Tingting Xu 1 & Xinchang Wang 1 & Xinjian Li 1 Received: 29 February 2020 / Revised: 12 May 2020 / Accepted: 27 May 2020 # Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract In this work, an efficient composite of SnSb alloy particles confined in three-dimensional porous carbon framework (SnSb@C) is rationally designed and fabricated by means of NaCl template-assisted in situ freeze-drying treatment and subsequent thermal reduction method. Benefit from rational material design and the excellent structural features of the active materials, the SnSb@C can deliver a high initial reversible capacity of 457 mA h g−1 at 100 mA g−1, and excellent cycling stability with capacity retention of 84% after 200 cycles at 0.1 A g−1, when evaluated as an anode material for SIBs. Meanwhile, the SnSb@C electrode can also deliver a high reversible discharge capacity of 293 mA h g−1 at 100 mA g−1 after 100 cycles in PIBs with good rate capability and impressive cycling performance. These results demonstrated that the SnSb@C composite is a promising anode material for future high-performance SIBs and PIBs. Keywords SnSb alloy . Three-dimensional carbon framework . Sodium/potassium-ion battery . Anode
Introduction Growing depletion of traditional fossil resources and concerns about pollution, renewable and clean energies, such as wind and solar, have attracted increasing attention. The intermittent nature of these green energy sources calls for energy conversion and sustainable electrical energy storage (EES). Therefore, various energy storage devices such as secondary . Electronic supplementary material The online version of this article (https://doi.org/10.1007/s11581-020-03641-2) contains supplementary material, which is available to authorized users. * Xinjian Li [email protected] Junmin Xu [email protected] 1
Key Laboratory of Material Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450052, China
2
Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China
batteries, lead-acid battery, liquid metal batteries, and metal– air batteries have been designed and studied [1–9]. Among these candidates, lithium-ion batteries (LIBs) have an extensive commercial application, which not only have achieved a tremendous success in portable electronic devices but in hybrid electric vehicles (HEVs) and electric vehicles (EVs). However, the finite lithium resources and the rising cost might eventually make it difficult for LIBs to meet the ever-growing demand of large-scale stationary energy storage [10, 11]. Owing to the low cost and abundance of sodium and potassium resources, sodium-ion batteries (SIBs) and potassium-ion batteries (PIBs) are considered as promising alternatives to
Data Loading...
