DataVXAdvanced Functional MaterialsPaper
journal article·2024-09

Highly Sodiophilic Heterostructures Toward Dendrite‐Free Sodium Metal Batteries

Yongshi Yu, Shitan Xu, Yang Yang, Yu Yao, Ghulam Ali, Zetian Tao, Xianhong Rui, Yan Yu

Advanced Functional Materials· Volume 34· Issue 36
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Source abstract

Abstract

Abstract The utilization of Al current collector for the sodium deposition is considered ideal for achieving a low‐cost, high‐energy‐density sodium metal battery. However, the poor affinity between sodium and Al leads to uneven sodium plating/stripping, which poses a significant challenge in the pursuit of a stable sodium metal anode. Herein, a heterostructure (V/VOx)‐modified Al current collector is proposed, which effectively enables a highly reversible Na plating/stripping process, and inhibits Na dendrites growth. Experimental results and theoretical calculations demonstrate that the V/VOx@Al not only exhibits strong sodiophilicity, but also ensures a uniform current density distribution. Thanks to these merits, the assembled cells demonstrate excellent performances with low nucleation overpotential (11 mV at 1 mA cm−2), and long cycle life (2750 h) with minimal voltage polarization (13 mV at 1 mA cm−2). More impressively, the assembled full cell displays remarkable stability, sustaining 1400 cycles at 10 C. This work provides valuable insights for the development of more stable sodium metal batteries.
Source: crossref · Quality: baseline

Research context

Energy storageMaterials processing

OpenAlex topics: Advancements in Battery Materials · Advanced Battery Materials and Technologies · Advanced battery technologies research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Jieyang Branch of Chemistry and Chemical Engineering Guangdong Laboratory (Rongjiang Laboratory) Jieyang 515200 China

Guangdong Provincial Key Laboratory on Functional Soft Condensed Matter School of Materials and Energy Guangdong University of Technology Guangzhou 510006 China

Hefei National Research Center for Physical Sciences at the Microscale iChEM (Collaborative Innovation Center of Chemistry for Energy Materials) Department of Materials Science and Engineering CAS Key Laboratory of Materials for Energy Conversion University of Science and Technology of China Hefei Anhui 230026 China

U.S.‐Pakistan Center for Advanced Studies in Energy National University of Sciences and Technology Islamabad 44000 Pakistan

School of Resources Environment and Safety Engineering University of South China Hengyang Hunan 421001 China

Funding

National Natural Science Foundation of China · National Synchrotron Radiation Laboratory · Dalian National Laboratory for Clean Energy · Fundamental Research Funds for the Central Universities

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