TY - JOUR
T1 - Highly Stable Sb/C Anode for K+ and Na+ Energy Storage Enabled by Pulsed Laser Ablation and Polydopamine Coating
AU - Gao, Hui
AU - Lee, Jeongyeon
AU - Lu, Qixiao
AU - Kim, Yoonbin
AU - Shin, Kang Ho
AU - Park, Ho Seok
AU - Zhang, Zhonghua
AU - Lee, Lawrence Yoon Suk
N1 - Funding Information:
H.G. and J.L. contributed equally to this work. The authors gratefully acknowledge the financial support from the Research Grants Council of the Hong Kong SAR (PolyU15217521) and the Research Institute for Smart Energy of the Hong Kong Polytechnic University (Q‐CDA3 and 1‐W16K).
Publisher Copyright:
© 2022 Wiley-VCH GmbH.
PY - 2023/1/25
Y1 - 2023/1/25
N2 - Potassium- and sodium-ion batteries (PIBs and SIBs) have great potential as the next-generation energy application owing to the natural abundance of K and Na. Antimony (Sb) is a suitable alloying-type anode for PIBs and SIBs due to its high theoretical capacity and proper operation voltage; yet, the severe volume variation remains a challenge. Herein, a preparation of N-doped carbon-wrapped Sb nanoparticles (L-Sb/NC) using pulsed laser ablation and polydopamine coating techniques, is reported. As the anode for PIB and SIB, the L-Sb/NC delivers superior rate capabilities and excellent cycle stabilities (442.2 and 390.5 mA h g−1 after 250 cycles with the capacity decay of 0.037% and 0.038% per cycle) at the current densities of 0.5 and 1.0 A g−1, respectively. Operando X-ray diffraction reveals the facilitated and stable potassiation and sodiation mechanisms of L-Sb/NC enabled by its optimal core–shell structure. Furthermore, the SIB full cell fabricated with L-Sb/NC and Na3V2(PO4)2F3 shows outstanding electrochemical performances, demonstrating its practical energy storage application.
AB - Potassium- and sodium-ion batteries (PIBs and SIBs) have great potential as the next-generation energy application owing to the natural abundance of K and Na. Antimony (Sb) is a suitable alloying-type anode for PIBs and SIBs due to its high theoretical capacity and proper operation voltage; yet, the severe volume variation remains a challenge. Herein, a preparation of N-doped carbon-wrapped Sb nanoparticles (L-Sb/NC) using pulsed laser ablation and polydopamine coating techniques, is reported. As the anode for PIB and SIB, the L-Sb/NC delivers superior rate capabilities and excellent cycle stabilities (442.2 and 390.5 mA h g−1 after 250 cycles with the capacity decay of 0.037% and 0.038% per cycle) at the current densities of 0.5 and 1.0 A g−1, respectively. Operando X-ray diffraction reveals the facilitated and stable potassiation and sodiation mechanisms of L-Sb/NC enabled by its optimal core–shell structure. Furthermore, the SIB full cell fabricated with L-Sb/NC and Na3V2(PO4)2F3 shows outstanding electrochemical performances, demonstrating its practical energy storage application.
KW - anodes
KW - antimony nanoparticles
KW - laser ablation
KW - potassium-ion batteries
KW - sodium-ion batteries
UR - http://www.scopus.com/inward/record.url?scp=85142630751&partnerID=8YFLogxK
U2 - 10.1002/smll.202205681
DO - 10.1002/smll.202205681
M3 - Journal article
SN - 1613-6810
VL - 19
JO - Small
JF - Small
IS - 4
M1 - 2205681
ER -
