Facile Synthesis of Three-Dimensional Porous ZnO Nanoflowers for High-Performance Anodes in Rechargeable Batteries

Gangqiang Peng; Guohong Wang; Abdur Rauf; Dawei Zheng; Abdul Rehman Akbar; Qianfeng Zheng; Shan Feng; Ubaid Khan; Fude Liu

doi:10.20944/preprints202310.0673.v1

Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Version 1 : Received: 10 October 2023 / Approved: 11 October 2023 / Online: 11 October 2023 (07:28:25 CEST)

The demand for high-energy-density batteries necessitates novel anode materials. Transition metal oxides (TMOs) show promise due to their high capacity, sustainability, and cost-effectiveness. However, TMO-based anodes face challenges related to expansion and conductivity. This study presents a two-step dilution crystallization method to fabricate porous ZnO nanoflowers at a moderate temperature. In-situ integration with carbon nanotube dispersants enhances conductivity and reduces agglomeration. The resulting composite anode exhibits impressive initial discharge capacity (2314.2 mAh g-1) and cycling stability (580.5 mAh g-1 over 50 cycles). This study provides a facile approach for next-generation anode materials.

ZnO anodes; nanoflowers; CNT dispersants; electrical conduction network; lithium-ion batteries

Chemistry and Materials Science, Chemical Engineering

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Facile Synthesis of Three-Dimensional Porous ZnO Nanoflowers for High-Performance Anodes in Rechargeable Batteries

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