Controlling Surface Phase Transition and Chemical Reactivity of O3-Layered Metal Oxide Cathodes for High-Performance Na-Ion Batteries
Source abstract
Abstract
O3-layered metal oxides are promising cathode materials for high-energy Na-ion batteries (SIBs); however, they suffer from fast capacity fade. In this work, we develop a high-performance O3-NaNi0.68Mn0.22Co0.10O2 cathode for SIBs toward practical applications by suppressing the formation of a rock salt layer at the cathode surface with an advanced electrolyte. The cathode can deliver a high specific capacity of ~196 mAh g–1 and demonstrates >80% capacity retention over 1000 cycles. NaNi0.68Mn0.22Co0.10O2–hard carbon full-cells with practical loading (>2.5 mAh cm–2) and lean electrolyte (~40 μL) demonstrate ~82% capacity retention after 450 cycles. A 60 mAh single-layer pouch cell has also been fabricated and demonstrated stable performance. This work represents a significant leap in SIB development and brings new insights to the development of advanced layered metal oxide cathodes for alkaline-ion batteries.
Source: openalex_inverted_index · Quality: candidate unverified · Source record ↗
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
Pacific Northwest National Laboratory, Richland, Washington 99352, United States
School of Mechanical and Materials Engineering, Washington State University, Pullman, Washington 99164, United States
Beijing Key Laboratory of Microstructure and Properties of Solids, Institute of Microstructure and Properties of Advanced Materials, Beijing University of Technology, Beijing 100124, China
Chemistry Division, Brookhaven National Laboratory, Upton, New York 11973, United States
Funding
Ministry of Science and Technology of the People's Republic of China · Office of Electricity Delivery and Energy Reliability · National Natural Science Foundation of China · Washington State University
References (49)
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