期刊
ADVANCED ENERGY MATERIALS
卷 11, 期 33, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/aenm.202101126
关键词
cell degradation; fast-charging batteries; lithium chemical diffusion; lithium plating; lithium-ion batteries
类别
资金
- German Federal Ministry for Education and Research (BMBF) [03XP0248, 03XP0180, 03XP0141]
- Federal Ministry for Economic Affairs and Energy (BMWi) [03ETE018E]
- Israeli Ministry of Science and Technology (MOST)
- Planning AMP
- Budgeting Committee/Israel Council for Higher Education (CHE)
- Fuel Choice Initiative (Prime Minister Office) within the framework of Israel National Research Center for Electrochemical Propulsion (INREP 2)
- Grand Technion Energy Program (GTEP)
- Projekt DEAL
Fast charging is essential for the economic success of electric vehicles, with lithium-ion batteries facing limitations due to the transport of lithium ions within the electrodes. Understanding these limitations is crucial for optimizing material properties for fast-charging applications.
Fast charging is considered to be a key requirement for widespread economic success of electric vehicles. Current lithium-ion batteries (LIBs) offer high energy density enabling sufficient driving range, but take considerably longer to recharge than traditional vehicles. Multiple properties of the applied anode, cathode, and electrolyte materials influence the fast-charging ability of a battery cell. In this review, the physicochemical basics of different material combinations are considered in detail, identifying the transport of lithium inside the electrodes as the crucial rate-limiting steps for fast-charging. Lithium diffusion within the active materials inherently slows down the charging process and causes high overpotentials. In addition, concentration polarization by slow lithium-ion transport within the electrolyte phase in the porous electrodes also limits the charging rate. Both kinetic effects are responsible for lithium plating observed on graphite anodes. Conclusions drawn from potential and concentration profiles within LIB cells are complemented by extensive literature surveys on anode, cathode, and electrolyte materials-including solid-state batteries. The advantages and disadvantages of typical LIB materials are analyzed, resulting in suggestions for optimum properties on the material and electrode level for fast-charging applications. Finally, limitations on the cell level are discussed briefly as well.
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