Passivating film artificially built on LiNi0.5Mn1.5O4 by molecular layer deposition of (pentafluorophenylpropyl)trimethoxysilane

Chae, Seulki; Soon, Jiyong; Jeong, Hyejeong; Lee, Tae jin; Ryu, Ji Heon; Oh, Seung Min

doi:10.1016/j.jpowsour.2018.04.091

Cited by 22 publications

(24 citation statements)

References 44 publications

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“…In contrast, the PFPPS coating has significantly inhibited the electrolyte decomposition and thereby greatly mitigated the SEI formation. Chae et al [132] further conducted XPS analyses on cycled pristine and PFPPS-coated LNMO electrodes and confirmed that there had significant SEI formation on the pristine electrode surface but moderate SEI formation on the PFPPS-coated electrode. Thus, the MLD PFPPS coating is effective in suppressing electrolyte oxidation and thereby improving the cell performance remarkably.…”

Section: Spinel Lini 05 Mn 15 O 4 (Lnmo) Cathodementioning

confidence: 93%

“…In addition to the ALD coatings, a recent study investigated the effects of an MLD polymer coating, (pentafluorophenylpropyl)trimethoxysilane (PFPPS) [Fig. 6(d)] on LNMO cathodes [132]. The deposited PEPPS layer on the LNMO powders was verified through surface analyses using X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM) [inset of Fig.…”

Section: Spinel Lini 05 Mn 15 O 4 (Lnmo) Cathodementioning

confidence: 99%

“…At 60°C, the pristine-LNMO electrode lost ∼88% of its initial capacity within 100 cycles, while the PFPPS-LNMO remained its initial capacity in the majority. Chae et al [132] explored the underlying mechanism for cell failure and performed one more charge-discharge at 101st cycle using a much smaller rate, 0.05 C. It was found that the Li/pristine-LNMO cell could almost regain its initial capacity [see Fig. 6(f)].…”

Section: Spinel Lini 05 Mn 15 O 4 (Lnmo) Cathodementioning

confidence: 99%

“…This strongly suggested that the cell polarization was the failure mechanism, rather than loss of active material itself. Chae et al [132] believed that, in other words, SEI formation (due to electrolyte decomposition) should be the main reason for the pristine cell failure. In contrast, the PFPPS coating has significantly inhibited the electrolyte decomposition and thereby greatly mitigated the SEI formation.…”

Section: Spinel Lini 05 Mn 15 O 4 (Lnmo) Cathodementioning

confidence: 99%

“…(d) Schematic illustration of self-assembly procedure for (pentafluorophenylpropyl)trimethoxysilane (PEPPS) on LiNi 0.5 Mn 1.5 O 4 surface. Capacity retention of LiNi 0.5 Mn 1.5 O 4 cathodes tested at (e) 25 and (f) 60°C at 0.5 C. In (f), the lithiation capacity observed at a slower rate (0.05 C) at the 101st cycle is present[132]. Reprinted with permission from Ref [132]…”

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confidence: 99%

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Atomic and molecular layer deposition in pursuing better batteries

Meng

2021

Journal of Materials Research

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In the past decade, atomic and molecular layer deposition (ALD and MLD), these two sister techniques have been attracting more and more research attention to address technical challenges in various advanced battery systems. The charm of both ALD and MLD lies in their unique mechanism for growing a large variety of functional materials, featuring uniform and conformal films enabled at the atomic/molecular level at low temperature. Using ALD and MLD, to date, there have been many excitements achieved in research. These will ultimately be reflected on technical innovations that will help revolutionize our lifestyles. This invited article gives the first comprehensive review briefing on the journey of ALD and MLD in pursuing better batteries and highlighting many exciting progresses in various advanced battery systems. It is expected that this review will help boost many more efforts in using ALD and MLD for new battery technologies in the coming decade.

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Section: Spinel Lini 05 Mn 15 O 4 (Lnmo) Cathodementioning

confidence: 93%

Section: Spinel Lini 05 Mn 15 O 4 (Lnmo) Cathodementioning

confidence: 99%

Section: Spinel Lini 05 Mn 15 O 4 (Lnmo) Cathodementioning

confidence: 99%

Section: Spinel Lini 05 Mn 15 O 4 (Lnmo) Cathodementioning

confidence: 99%

mentioning

confidence: 99%

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Atomic and molecular layer deposition in pursuing better batteries

Meng

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Journal of Materials Research

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Recent Advances in Materials Design Using Atomic Layer Deposition for Energy Applications

Gupta

Hossain

Riaz

et al. 2021

Adv Funct Materials

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The design and development of materials at the nanoscale has enabled efficient, cutting‐edge renewable energy storage, and conversion devices such as solar cells, water splitting, fuel cells, batteries, and supercapacitors. In addition to creating new materials, the ability to refine the structure and interface properties holds the key to achieving superior performance and durability of these devices. Atomic layer deposition (ALD) has become an important tool for nanofabrication as it allows the deposition of pin‐hole‐free films with atomic‐level thickness and composition control over high aspect ratio surfaces. ALD is successfully used to fabricate devices for renewable energy storage and conversion, for example, to deposit absorber materials, passivation layers, selective contacts, catalyst films, protection barriers, etc. In this review article, recent advances enabled by ALD in designing materials for high‐performance solar cells, catalytic energy conversion systems, batteries, and fuel cells, are summarized. The critical issues impeding the performance and durability of these devices are introduced and then the role of ALD in addressing them is discussed. Finally, the challenges in the implementation of ALD technique for nanofabrication on industrial scale are highlighted and a perspective on potential solutions is provided.

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Electrode Protection and Electrolyte Optimization via Surface Modification Strategy for High‐Performance Lithium Batteries

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Wang,

Xue

2023

Adv Funct Materials

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Lithium batteries have become one of the best choices for energy storage due to their long lifespan, high operating voltage‐platform and energy density without any memory effect. However, the ever‐increased demands of high‐performance lithium batteries indeed place a stricter request to the electrodes and electrolytes materials, and electrode‐electrolyte interface. Various strategies are developed to enhance the overall performances of current lithium batteries, and among them, artificial modification of battery components is regarded as one of the most effective. However, systematic summery surrounding surface modifications is rare. In this review, the structural instability of the bare electrodes and the main defects of unmodified separator/solid electrolytes are briefly presented. Then diverse and advanced surface‐engineering strategies for both the cathode and anode materials, as well as the separator/solid electrolytes are carefully summarized. More importantly, the prospects of surface modification and challenges of current methods for constructing high‐performance lithium batteries are pointed out.

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Passivating film artificially built on LiNi0.5Mn1.5O4 by molecular layer deposition of (pentafluorophenylpropyl)trimethoxysilane

Cited by 22 publications

References 44 publications

Atomic and molecular layer deposition in pursuing better batteries

Atomic and molecular layer deposition in pursuing better batteries

Recent Advances in Materials Design Using Atomic Layer Deposition for Energy Applications

Electrode Protection and Electrolyte Optimization via Surface Modification Strategy for High‐Performance Lithium Batteries

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