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Electrochemical reconstruction: a new perspective on Sn metal-organic complex microbelts as robust anode for lithium storage AITranslate

Key Laboratory of Function-oriented Porous Materials of Henan Province;Key Laboratory of Function-oriented Porous Materials of Henan Province;Key Laboratory of Function-oriented Porous Materials of Henan Province;Key Laboratory of Function-oriented Porous Materials of Henan Province;Key Laboratory of Function-oriented Porous Materials of Henan Province;Key Laboratory of Function-oriented Porous Materials of Henan Province;Key Laboratory of Function-oriented Porous Materials of Henan Province;Key Laboratory of Function-oriented Porous Materials of Henan Province;Key Laboratory of Function-oriented Porous Materials of Henan Province;Key Laboratory of Function-oriented Porous Materials of Henan Province
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Abstract AITranslate

Tin-based materials with high theoretical capacity and suitable working voltage are ideal anode materials for lithium-ion batteries(LIBs). However, to overcome their shortcomings(volume expansion and inferior stability), the preparation processes are usually complicated and expensive. Herein, a tin-based metal-organic complex(tin 1,2-benzenedicarboxylic acid, Sn-BDC)with one-dimensional microbelt morphology is synthesized by a facile, rapid and low-cost co-precipitation method, and served as anode material for LIBs without any post-treatment. Sn-BDC exhibits a high reversible capacity with609/440 m Ah·g-1 at 50/2000 m A·g-1, and robust cycling stability of 856 m Ah·g-1 after 200 cycles at 200 m A·g-1,which are obviously superior to that of the Sn Ox/C counterparts. Moreover, an electrochemical reconstruction perspective on the lithium storage mechanism of Sn-BDC is proposed by systematic ex-situ characterizations. The reconstructed SnO2 replaces Sn-BDC and becomes the active material in the subsequent cycles. As the by-product of the lithiation reaction, the formed Li-based metal-organic complex(Li-BDC, wrapped around the reconstructed SnO2) plays an important role in alleviating volume expansion and accelerating the charge transfer kinetics.This work is beneficial to design and construct the new electrode materials based on the electrochemical reconstruction for advanced LIBs.

KeyWords AITranslate

Electrochemical reconstruction Metal-organic complex ANODE Lithium storage mechanism Lithium-ion batteries

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Basic Information:

DOI:

Chinese Library Classification Number:TM912[电气工程—电力电子与电力传动];O641.4[理学—物理化学]

Citation Information:

Tin-based materials with high theoretical capacity and suitable working voltage are ideal anode materials for lithium-ion batteries(LIBs). However, to overcome their shortcomings(volume expansion and inferior stability), the preparation processes are usually complicated and expensive. Herein, a tin-based metal-organic complex(tin 1,2-benzenedicarboxylic acid, Sn-BDC)with one-dimensional microbelt morphology is synthesized by a facile, rapid and low-cost co-precipitation method, and served as anode material for LIBs without any post-treatment. Sn-BDC exhibits a high reversible capacity with609/440 m Ah·g-1 at 50/2000 m A·g-1, and robust cycling stability of 856 m Ah·g-1 after 200 cycles at 200 m A·g-1,which are obviously superior to that of the Sn Ox/C counterparts. Moreover, an electrochemical reconstruction perspective on the lithium storage mechanism of Sn-BDC is proposed by systematic ex-situ characterizations. The reconstructed SnO2 replaces Sn-BDC and becomes the active material in the subsequent cycles. As the by-product of the lithiation reaction, the formed Li-based metal-organic complex(Li-BDC, wrapped around the reconstructed SnO2) plays an important role in alleviating volume expansion and accelerating the charge transfer kinetics.This work is beneficial to design and construct the new electrode materials based on the electrochemical reconstruction for advanced LIBs.

quote

GB/T 7714-2015 [1] Jin-Ke Shen, Nai-Teng Wu, Li-Yuan Wang, et al. Rare Metals, 2024(1): 76-86.
MLA [1] Jin-Ke Shen, et al., Rare Metals, no. 1, 2024, pp. 76-86.
APA [1] Jin-Ke Shen, Nai-Teng Wu, Li-Yuan Wang, Gang Jiang, Dong-Lei Guo, Jin Li, Gui-Long Liu, Hong-Yu Mi, Huan Pang, & Xian-Ming Liu. (2024). Rare Metals(1), 76-86.
IEEE [1] Jin-Ke Shen, Nai-Teng Wu, Li-Yuan Wang, Gang Jiang, Dong-Lei Guo, Jin Li, Gui-Long Liu, Hong-Yu Mi, Huan Pang, and Xian-Ming Liu, Rare Metals, no. 1, pp. 76-86, 2024.