Calcium Vanadate Micro/Nanostructures for Lithium-Ion Batteries
Source abstract
Abstract
The ability to control the composition and structure of inorganic compounds by simple synthesis methods is essential to the design and development of electrode materials of lithium-ion batteries (LIBs). Here we report the controllable synthesis of calcium vanadate micro/nanostructures via a simple hydrothermal method. By easily adjusting the pH value of a reaction system, a Ca10V6O25 straw-bundle-like structure, Ca2V2O7 microplatelet, and CaV6O16·3H2O sponge-like macrostructure can be selectively synthesized. The regulation mechanism of different calcium vanadate micro/nanostructures was investigated. In addition, CaV6O16·3H2O and CaV6O16·3H2O/GO self-standing papers were obtained by pressing the sponge-like macrostructure and vacuum filtration, respectively. The electrochemical performances of the CaV6O16·3H2O and CaV6O16·3H2O/GO papers as the self-standing and binder-free anodes for LIBs were investigated for the first time. The as-obtained CaV6O16·3H2O/GO hybrid paper anode exhibits a high discharge capacity of 664.0 mA h g–1 after 250 cycles at 200 mA g–1 and good cycling stability, demonstrating its potential application as a self-standing anode for LIBs.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advancements in Battery Materials · Supercapacitor Materials and Fabrication · Transition Metal Oxide Nanomaterials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
College of Chemical Engineering, Shijiazhuang University, Shijiazhuang, Hebei 050035, China
Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin 300071, China
Ceramic Engineering Technology Research Center of Hebei Province, Shijiazhuang, Hebei 050035, China
Funding
Hebei Provincial Department of Human Resources and Social Security · Hebei Provincial Project for Cultivation of College Students? Scientific and Technological Innovation Ability · Science and Technology Project of Shijiazhuang Bureau · Hebei Innovation Capability Improvement Program
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