Bagasse-Derived Hard Carbon Anode with an Adsorption–Intercalation Mechanism for High-Rate Potassium Storage
Source abstract
Abstract
Hard carbon is a kind of abundant-resource and cost-effective anode material for potassium-ion batteries to realize commercialization shortly. However, the poor rate performance and ambiguous energy storage mechanism of hard carbon remain great bottlenecks. In this study, bagasse-pyrolyzed hard carbon (BC) is prepared by the pyrolysis of bagasse, which exhibits a larger surface area and better electrical conductivity than sugarcane-pyrolyzed hard carbon (SC). The BC exhibits a high reversible capacity of 235 mAh g –1 at 100 mA g –1 and a high rate (161 mAh g –1 at 1000 mA g –1 ) for K + storage, which are better than those of SC (108 mAh g –1 and 49 mAh g –1 ). In situ X-ray diffraction and Raman results reveal the “adsorption–intercalation” K + storage mechanism and prove that the favorable defects endow BC with better electrochemical capability.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advancements in Battery Materials · Membrane-based Ion Separation Techniques · Extraction and Separation Processes
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Key Laboratory of Textile Fiber and Products, Ministry of Education, Hubei International Scientific and Technological Cooperation Base of Intelligent Textile Materials & Application, Wuhan Textile University, Wuhan 430200, China
State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
Department of Physical Science & Technology, School of Science, Wuhan University of Technology, Wuhan 430070, China
Hubei Longzhong Laboratory, Wuhan University of Technology (Xiangyang Demonstration Zone), Xiangyang 441000, Hubei, China
Funding
China Postdoctoral Science Foundation · Central University Basic Research Fund of China · Wuhan University of Technology · National Natural Science Foundation of China · Guangdong Basic and Applied Basic Research Foundation
References (58)
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