High-Capacity Hard Carbon Pyrolyzed from Subbituminous Coal as Anode for Sodium-Ion Batteries
Source abstract
Abstract
A pyrolyzed subbituminous carbon is synthesized through a simple one-step carbonization process as low-cost and high-capacity anode for sodium-ion batteries (SIB). The pyrolyzed subbituminous carbon, SHC-1300 anode shows high Na storage capacity of 291 mA h g–1 at 20 mA g–1 and high initial Coulombic efficiency of 79.5%, as well as stable cycling performance, exhibiting a promising alternative anode for affordable and high-performance SIB. Furthermore, according to the investigation of the electrochemical performance and structural characterizations, the SHC-1300 pyrolyzed from subbituminous coal with flexible structure demonstrates a better electrochemical performance compared with the BHC-1300 pyrolyzed from bituminous coal with rigid structure. The sodium storage mechanism and structural evolution reported in this work may give a new prospect for the selection of pyrolyzed carbon materials for high-performance sodium-ion batteries.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advancements in Battery Materials · Advanced Battery Materials and Technologies · Supercapacitor Materials and Fabrication
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Hubei Key Laboratory of Electrochemical Power Sources, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
School of Nuclear Technology & Chemistry and Biology, Hubei University of Science and Technology, Xianning 437100, China
State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430072, China
State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
Funding
Ministry of Science and Technology of the People's Republic of China · National Natural Science Foundation of China · State Key Laboratory of Coal Combustion, Huazhong University of Sciences and Technology
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