Improved high-temperature cyclability of AlF3 modified spinel LiNi0.5Mn1.5O4 cathode for lithium-ion batteries

Chu, Ching-Teng; Mondal, Aniruddha; Косова, Н. В.; Lin, Jeng‐Yu

doi:10.1016/j.apsusc.2020.147169

Cited by 60 publications

(42 citation statements)

References 45 publications

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“…[6][7][8][9] At the high cutoff voltage of 5 V, traditional electrolytes containing organic carbonates and LiPF 6 readily decompose to form various by-products such as oxocarbons (CO and CO 2 ) and acidic species, which not only hinder the formation of a stable cathode-electrolyte interphase (CEI) layer, but also cause the dissolution of the transition metals, ultimately leading to poor cycling performance. [10][11][12][13] To mitigate the parasitic reaction between the liquid electrolyte and LNMO surface at high cutoff potential, surface coatings of conductive polymers [14][15][16], oxides [17][18][19], and fluorides [20][21][22] have proven an effective strategy to improve cyclability and therefore extensively investigated. However, their synthetic complexity effectively undermines the competitive advantage of LNMO's lower bill of materials.…”

Section: Introductionmentioning

confidence: 99%

Ordered LiNi_0.5Mn_1.5O₄ Cathode in Bis(fluorosulfonyl)imide-Based Ionic Liquid Electrolyte: Importance of the Cathode–Electrolyte Interphase

et al. 2021

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The high voltage (4.7 V vs. Li + /Li) spinel lithium nickel manganese oxide (LiNi 0.5 Mn 1.5 O 4 , LNMO) is a promising candidate for the next-generation of lithium ion batteries due to its high energy density, low cost and environmental impact. However, poor cycling performance at high cutoff potentials limits its commercialization. Herein, hollow structured LNMO is synergistically paired with an ionic liquid electrolyte, 1M lithium bis(fluorosulfonyl)imide (LiFSI) in N-propyl-N-methylpyrrolidinium bis(fluorosulfonyl)imide (Pyr 1,3 FSI) to achieve stable cycling performance and improved rate capability. The optimized cathode-electrolyte system exhibits extended cycling performance (>85% capacity retention after 300 cycles) and high rate performance (106.2 mAh g-1 at 5C) even at an elevated temperature of 65 • C. X-ray photoelectron spectroscopy and spatially resolved x-ray fluorescence analyses confirm the formation of a robust, LiF-rich cathode electrolyte interphase. This study presents a comprehensive design strategy to improve the electrochemical performance of high-voltage cathode materials.

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Section: Introductionmentioning

confidence: 99%

Ordered LiNi_0.5Mn_1.5O₄ Cathode in Bis(fluorosulfonyl)imide-Based Ionic Liquid Electrolyte: Importance of the Cathode–Electrolyte Interphase

et al. 2021

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“…[96] Figure 4e shows the schematic of Mn dissolution in the LNMO/graphite full cell. Chu et al [98] confirmed that the AlF 3 coating (~5.2 nm) greatly inhibits the Mn dissolution (Figure 4f) and increases the capacity retention of LNMO film. Wang et al [99] also increased the capacity retention of LNMO by coating the similar MgAl 2 O 4 spinel (~10nm) on the surface of LNMO powder.…”

Section: Inhibiting Mn Dissolutionmentioning

confidence: 84%

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confidence: 99%

Promising Electrode and Electrolyte Materials for High‐Energy‐Density Thin‐Film Lithium Batteries

Lin

et al. 2021

Energy & Environ Materials

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All-solid-state thin-film lithium batteries (TFLBs) are the ideal wireless power sources for on-chip micro/nanodevices due to the significant advantages of safety, portability, and integration. As the bottleneck for increasing the energy density of TFLBs, the key components of cathode, electrolyte, and anode are still underway to be improved. In this review, a brief history of TFLBs is first outlined by presenting several TFLB configurations. Based on the state-of-the-art materials developed for lithium-ion batteries (LIBs), the challenges and related strategies for the application of those potential electrode and electrolyte materials in TFLBs are discussed. Given the advanced manufacture and characterization techniques, the recent advances of TFLBs are reviewed for pursuing the high-energy-density and long-termdurability demands, which could guide the development of future TFLBs and analogous all-solid-state lithium batteries.

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“…In general, the impact of the coating material on the overall impedance of the material should be as little as possible, and the ideal coating material needs to match well with the spinel lattice and own good Li + and electronic diffusion. Commonly used coating materials include metal oxides, [113] organic matter, [114] fluorides, [115] phosphates [116] and lithium ion conductive materials [117]…”

Section: Modification Methodsmentioning

confidence: 99%

Synthesis, Modification, and Lithium‐Storage Properties of Spinel LiNi_0.5Mn_1.5O₄

et al. 2021

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Lithium‐ion batteries (LIBs) are currently widely applied in many aspects of life, but with the development, the capacity of lithium‐ion batteries can no longer meet the needs. One of the dominant factors to restricting the capacity of LIBs is the cathode materials. Among the derivatives of spinel cathode LiMn2O4 (LMO), LiNi0.5Mn1.5O4 (LNMO) has become one of the research promising cathode materials in the current LIBs due to its high working voltage (4.7 V) and large theoretical specific capacity (147 mAh g−1). However, the short cycle life of LNMO during the electrochemical process limits its large‐scale commercial applications. Thus, it is necessary to summarize and discuss the recent development of LNMO. Through comparison with LiMn2O4, the structure, electrochemical properties of LNMO, influence of Mn on the performance of LNMO, and the capacity fading mechanism are analyzed and discussed in detail. We also summarize the modification methods of LNMO and the influence of preparation methods on the structure and performance of LNMO. Finally, some prospects of LNMO cathode are put forward. This Review article can provide helpful references for future design and construction of LNMO.

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Improved high-temperature cyclability of AlF3 modified spinel LiNi0.5Mn1.5O4 cathode for lithium-ion batteries

Cited by 60 publications

References 45 publications

Ordered LiNi_0.5Mn_1.5O₄ Cathode in Bis(fluorosulfonyl)imide-Based Ionic Liquid Electrolyte: Importance of the Cathode–Electrolyte Interphase

Ordered LiNi_0.5Mn_1.5O₄ Cathode in Bis(fluorosulfonyl)imide-Based Ionic Liquid Electrolyte: Importance of the Cathode–Electrolyte Interphase

Promising Electrode and Electrolyte Materials for High‐Energy‐Density Thin‐Film Lithium Batteries

Synthesis, Modification, and Lithium‐Storage Properties of Spinel LiNi_0.5Mn_1.5O₄

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Improved high-temperature cyclability of AlF3 modified spinel LiNi0.5Mn1.5O4 cathode for lithium-ion batteries

Cited by 60 publications

References 45 publications

Ordered LiNi0.5Mn1.5O4 Cathode in Bis(fluorosulfonyl)imide-Based Ionic Liquid Electrolyte: Importance of the Cathode–Electrolyte Interphase

Ordered LiNi0.5Mn1.5O4 Cathode in Bis(fluorosulfonyl)imide-Based Ionic Liquid Electrolyte: Importance of the Cathode–Electrolyte Interphase

Promising Electrode and Electrolyte Materials for High‐Energy‐Density Thin‐Film Lithium Batteries

Synthesis, Modification, and Lithium‐Storage Properties of Spinel LiNi0.5Mn1.5O4

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Ordered LiNi_0.5Mn_1.5O₄ Cathode in Bis(fluorosulfonyl)imide-Based Ionic Liquid Electrolyte: Importance of the Cathode–Electrolyte Interphase

Ordered LiNi_0.5Mn_1.5O₄ Cathode in Bis(fluorosulfonyl)imide-Based Ionic Liquid Electrolyte: Importance of the Cathode–Electrolyte Interphase

Synthesis, Modification, and Lithium‐Storage Properties of Spinel LiNi_0.5Mn_1.5O₄