Cathodic interface in sulfide-based all-solid-state lithium batteries

Li, Nana; Luo, Jiayao; Zhu, Jinhui; Zhuang, Xiaodong

doi:10.1016/j.ensm.2023.103034

Cited by 5 publications

(2 citation statements)

References 384 publications

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“…14–17 In contrast to transition metal oxides, transition metal polysulfides are more compatible with sulfide solid electrolytes because of their similar chemical potential, thus avoiding the formation of space charge layers. 18,19 In addition, the majority of transition metal polysulfides undergo redox reactions driven by both cations and anions during the charge–discharge process, thus improving reversible specific capacity. 20,21 As a typical transition metal polysulfide, NbS 4 possesses a high theoretical capacity of 970 mA h g −1 , which is competitive among the cathode materials (Table S1†).…”

Section: Introductionmentioning

confidence: 99%

Niobium sulfide nanocomposites as cathode materials for all-solid-state lithium batteries with enhanced electrochemical performance

Wang,

Chang,

Xie

et al. 2024

Nanoscale

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Section: Introductionmentioning

confidence: 99%

Niobium sulfide nanocomposites as cathode materials for all-solid-state lithium batteries with enhanced electrochemical performance

Wang,

Chang,

Xie

et al. 2024

Nanoscale

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“…Lithium-ion batteries have been widely used in 3C electronic products, energy storage devices, and power batteries due to their high operating voltage, environmental friendliness, and long cycle life. − The conventional liquid electrolyte used in Li-ion batteries makes it difficult to match high-voltage cathodes such as Li-rich Mn-based layered oxides due to its narrow electrochemical window, resulting in limited energy density. Moreover, flammable liquid electrolytes pose potential safety problems for Li batteries. − Given these concerns, significant effort has been devoted to exploring solid-state electrolytes (SSEs) with wider voltage windows and high safety, including perovskite , antiperovskite type, − sulfide type, − Na super ionic conductor (NASICON) type − and garnet type electrolytes. − Among these, garnet-type electrolytes have attracted much attention due to their excellent stability toward Li metal and air and fast ionic conduction. , However, the poor wettability and large interface resistance of garnet electrolytes and Li metal anode seriously obstruct the electrochemical performance of Li-ion batteries. ,− …”

Section: Introductionmentioning

confidence: 99%

In Situ Fabrication of High Ionic and Electronic Conductivity Interlayers Enabling Long-Life Garnet-Based Solid-State Lithium Batteries

Zeng,

Feng,

Shi

et al. 2024

ACS Appl. Mater. Interfaces

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Garnet-type Li6.75La3Zr1.75Ta0.25O12 (LLZTO) is a promising solid-state electrolyte (SSE) because of its fast ionic conduction and notable chemical/electrochemical stability toward the lithium (Li) metal. However, poor interface wettability and large interface resistance between LLZTO and Li anode greatly restrict its practical applications. In this work, we develop an in situ chemical conversion strategy to construct a highly conductive Li2S@C layer on the surface of LLZTO, enabling improved interfacial wettability between LLZTO and the Li anode. The Li/Li2S@C-LLZTO-Li2S@C/Li symmetric cell has a low interface impedance of 78.5 Ω cm2, much lower than the 970 Ω cm2 of a Li/LLZTO/Li cell. Moreover, the Li/Li2S@C-LLZTO-Li2S@C/Li cell exhibits a high critical current density of 1.4 mA cm–2 and an ultralong stability of 3000 h at 0.1 mA cm–2. When used in a LiFePO4 battery, the Li/Li2S@C-LLZTO/LiFePO4 battery exhibits a high initial discharge capacity of 150.8 mA h g–1 at 0.2 C without lithium storage capacity attenuation during 200 cycles. This work provides a novel and feasible strategy to address interface issues of SSEs and achieve lithium-dendrite-free solid-state batteries.

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Constructing An Oxyhalide Interface for 4.8 V‐Tolerant High‐Nickel Cathodes in All‐Solid‐State Lithium‐Ion Batteries

Liu,

Yu,

et al. 2024

Angewandte Chemie

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All‐solid‐state lithium batteries (ASSBs) have received increasing attentions as one promising candidate for the next‐generation energy storage devices. Among various solid electrolytes, sulfide‐based ASSBs combined with layered oxide cathodes have emerged due to the high energy density and safety performance, even at high‐voltage conditions. However, the interface compatibility issues remain to be solved at the interface between the oxide cathode and sulfide electrolyte. To circumvent this issue, we propose a simple but effective approach to magic the adverse surface alkali into a uniform oxyhalide coating on LiNi0.8Co0.1Mn0.1O2 (NCM811) via a controllable gas‐solid reaction. Due to the enhancement of the close contact at interface, the ASSBs exhibit improved kinetic performance across a broad temperature range, especially at the freezing point. Besides, owing to the high‐voltage tolerance of the protective layer, ASSBs demonstrate excellent cyclic stability under high cutoff voltages (500 cycles ~ 94.0% at 4.5 V, 200 cycles ~ 80.4% at 4.8 V). This work provides insights into using a high voltage stable oxyhalide coating strategy to enhance the development of high energy density ASSBs.

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Cathodic interface in sulfide-based all-solid-state lithium batteries

Cited by 5 publications

References 384 publications

Niobium sulfide nanocomposites as cathode materials for all-solid-state lithium batteries with enhanced electrochemical performance

Niobium sulfide nanocomposites as cathode materials for all-solid-state lithium batteries with enhanced electrochemical performance

In Situ Fabrication of High Ionic and Electronic Conductivity Interlayers Enabling Long-Life Garnet-Based Solid-State Lithium Batteries

Constructing An Oxyhalide Interface for 4.8 V‐Tolerant High‐Nickel Cathodes in All‐Solid‐State Lithium‐Ion Batteries

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