In Situ K Doped γ-LiV2O5 as Long-Life Anode and Cathode for Lithium Ion Battery
Source abstract
Abstract
Based on the reaction process (γ′-V2O5 ↔ γ-LiV2O5 ↔ ζ-Li2V2O5 ↔ ω-Li3V2O5), γ-LiV2O5 is potential anode and cathode in a lithium ion battery. However, its poor structural stability during lithiation/delithiation results in unsatisfactory cyclic life. This work reports a low-temperature molten salt method to prepare in situ K doped γ-LiV2O5. With the as-prepared electrode acting as both anode (233 mAh g–1 after 2400 cycles at 1 A g–1) and cathode (128 mAh g–1 after 888 cycles at 0.2 A g–1), experimental results reveal that the K+ doping distinctly improves structural reversibility, demonstrating the superior electrochemical properties of γ-LiV2O5 for becoming an outstanding candidate in lithium ion batteries.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advancements in Battery Materials · Transition Metal Oxide Nanomaterials · Semiconductor materials and devices
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Chemistry, Xiangtan University, Xiangtan 411105, China
School College of Electrical and Information Engineering, Hunan University, Changsha 410082, China
State Key Laboratory of Analog and Mixed-Signal VLSI, University of Macau, Macau 999078, China
Funding
Natural Science Foundation of?Hunan Province · China Postdoctoral Science Foundation · National Natural Science Foundation of China · Jiangsu Donghua Analysis Instruments Co. Ltd. · Macao Young Scholars Program
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