Key Takeaways & Executive Findings
- •• A comprehensive dataset of hard carbon anodes for sodium-ion batteries is presented, including electrochemical performance and structural characterization. • SAXS fitting provides detailed structural parameters that correlate with electrochemical performance, enabling microstructure analysis of closed pores and carbon layers. • The dataset enables comparative analysis of structure-performance relationships, facilitating optimization of hard carbon materials for sodium-ion batteries. • Data includes capacity performance, structural data, and SAXS fitting results, with raw and analyzed formats accessible for further studies.
Abstract
This data set collects, compares and contrasts the capacities and structures of a series of hard carbon materials, and then searches for correlations between structure and electrochemical performance. The capacity data of the hard carbons were obtained by charge/discharge tests and the materials were characterized by XRD, gas adsorption, true density tests and SAXS. In particular, the fitting of SAXS gave a series of structural parameters which showed good characterization. The related test details are given with the structural data of the hard carbons and the electrochemical performance of the sodium-ion batteries.
1. Introduction
Sodium-ion batteries (SIBs) have emerged as promising alternatives to lithium-ion batteries due to the abundant and low-cost sodium resources. Among various anode materials, hard carbon (HC) is considered the most commercially viable candidate because of its high specific capacity, low operating potential, and excellent cycling stability. However, the complex microstructure of hard carbon, including its disordered carbon layers and closed pores, significantly influences its sodium storage performance. Understanding the structure-performance relationship is crucial for the rational design of high-performance hard carbon anodes.
This data article provides a comprehensive dataset of hard carbon materials, including their electrochemical performance and structural characterization. The dataset comprises capacity data from charge/discharge tests, structural parameters from XRD, gas adsorption, true density measurements, and small-angle X-ray scattering (SAXS) fitting results. By correlating these structural features with electrochemical performance, the dataset aims to facilitate further research and optimization of hard carbon anodes for sodium-ion batteries.
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HOU Wei-yan, YI Zong-lin, JIA Wan-ru, YU Hong-tao, DAI Li-qin, YANG Jun-jie, CHEN Jing-peng, XIE Li-jing, SU Fang-yuan, CHEN Cheng-meng (2025). A dataset for the structure and electrochemical performance of hard carbon as anodes for sodium-ion batteries. SinoTechIntel Verified Research. https://doi.org/10.1016/S1872-5805(NCM2025-5-2)
Research & Educational Purpose Only:The translations, structured abstracts, analytical annotations, and data reports provided by SinoTechIntel are intended exclusively for academic research, internal corporate R&D, and educational benchmarking. They do not constitute formal engineering, chemical safety, legal, or professional advice.
Copyright & Intellectual Property Notice: Original copyright of the underlying source articles and experimental data remains with the respective authors, institutions, and original publishing journals. SinoTechIntel claims intellectual property only over its proprietary translations, analytical syntheses, and AEO structured enhancements in accordance with international fair use and academic citation principles.
Frequently Asked Questions
What is the main focus of this dataset?
The dataset focuses on the structure and electrochemical performance of hard carbon materials used as anodes in sodium-ion batteries, providing detailed characterization data and performance metrics.
What techniques were used to characterize the hard carbon materials?
The materials were characterized using X-ray diffraction (XRD), gas adsorption (CO2 and N2), true density measurements, and small-angle X-ray scattering (SAXS).
How can this dataset be used in further research?
Researchers can use this dataset to compare structural parameters with electrochemical performance, validate models, and guide the design of optimized hard carbon anodes for sodium-ion batteries.
What are the key structural parameters obtained from SAXS fitting?
The SAXS fitting provides parameters related to closed pores and carbon layer structure, which are crucial for understanding sodium storage mechanisms.
Where can the full dataset be accessed?
The data is available with the article and can be accessed via the URL: https://www.scidb.cn/detail?dataSetId=7e7687dfcf9042ec91d36c33dcfcc992.
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