Stabilized cathode/sulfide solid electrolyte interface via Li2ZrO3 coating for all-solid-state batteries

Zhao, Chen; Liu, Ziqiang; Weng, Wei; Wan, Ming; Yan, Xiaoyan; Yang, Jing; Lu, Hongda; Yao, Xiayin

doi:10.1007/s12598-022-02086-y

Cited by 12 publications

(7 citation statements)

References 39 publications

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“…The uneven Li deposition and dendrite growth increase local stress, resulting in electrolyte fracture (i.e., short circuit). [ 43–45 ] In contrast, LPSC‐OF 0.25 maintains an intact and smooth electrolyte surface due to a stable and uniform SEI as well as a complete and flat interface with lithium metal (Figure 3b,c). [ 46,47 ]…”

Section: Resultsmentioning

confidence: 99%

One Stone, Three Birds: An Air and Interface Stable Argyrodite Solid Electrolyte with Multifunctional Nanoshells

Sang,

Pan,

Tang

et al. 2023

Advanced Science

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Li6PS5Cl (LPSC) solid electrolytes, based on Argyrodite, have shown potential for developing high energy density and safe all‐solid‐state lithium metal batteries. However, challenges such as interfacial reactions, uneven Li deposition, and air instability remain unresolved. To address these issues, a simple and effective approach is proposed to design and prepare a solid electrolyte with unique structural features: Li6PS4Cl0.75‐OF0.25 (LPSC‐OF0.25) with protective LiF@Li2O nanoshells and F and O‐rich internal units. The LPSC‐OF0.25 electrolyte exhibits high ionic conductivity and the capability of “killing three birds with one stone” by improving the moist air tolerance, as well as the interface compatibility between the anode or cathode and the solid electrolyte. The improved performance is attributed to the peculiar morphology and the self‐generating and self‐healing interface coupling capability. When coupled with bare LiCoO2, the LPSC‐OF0.25 electrolyte enables stable operation under high cutoff voltage (≈4.65 V vs Li/Li+), thick cathodes (25 mg cm−2), and large current density (800 cycles at 2 mA cm−2). This rationally designed solid electrolyte offers promising prospects for solid‐state batteries with high energy and power density for future long‐range electric vehicles and aircrafts.

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Section: Resultsmentioning

confidence: 99%

One Stone, Three Birds: An Air and Interface Stable Argyrodite Solid Electrolyte with Multifunctional Nanoshells

Sang,

Pan,

Tang

et al. 2023

Advanced Science

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“…Yao et al reported the in situ formation of Li 2 ZrO 3 (LZO) coating layer with three-dimensional lithium-ion migration channel at the cathode surface. As a result, all-solid-state lithium batteries based on the NCM@1%LZO cathode and Li 6 PS 5 Cl solid electrolyte display excellent cycle stability with capacity retentions of 87.5% after 300 cycles under room temperature and 0.1 C test conditions . Although this coating layer can stabilize the interfaces, its ionic conductivity is generally not high, which will limit the migration of lithium ions across the interface and ultimately affect the utilization efficiency of the cathode active material.…”

Section: Introductionmentioning

confidence: 99%

“…As a result, all-solid-state lithium batteries based on the NCM@1%LZO cathode and Li 6 PS 5 Cl solid electrolyte display excellent cycle stability with capacity retentions of 87.5% after 300 cycles under room temperature and 0.1 C test conditions. 35 Although this coating layer can stabilize the interfaces, its ionic conductivity is generally not high, which will limit the migration of lithium ions across the interface and ultimately affect the utilization efficiency of the cathode active material. More importantly, current coating technologies are generally expensive, such as pulsed laser deposition (PLD).…”

Section: Introductionmentioning

confidence: 99%

Stabilized Cathode/Sulfide Electrolyte Interface through Conformally Interfacial Nanocoating for All-Solid-State Batteries

Zou

Zang

Tao

et al. 2023

ACS Appl. Energy Mater.

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All-solid-state lithium batteries (ASSLBs) composed of sulfidebased solid-state electrolyte and LiNi x Mn y Co 1−x−y O 2 (NMC) cathode are expected to become the promising next generation of energy storage systems due to their great potential in highly improved safety and energy density. However, the poor interfacial stability between the NMC cathode and sulfidebased electrolyte remains an important challenge for the commercialization of ASSLBs. In this study, a thin layer of fast lithium-ion conductor Li 1.3 Al 0.3 Ti 1.7 (PO 4 ) 3 (LATP) with a thickness of 8 nm was coated at the interface between LiNi 0.8 Co 0.1 Mn 0.1 O 2 (NCM811) and Li 5.5 PS 4.5 Cl 1.5 via a facile wet chemical method to improve interfacial stability. It has been found that the nanoscale LATP coating layer can not only accelerate lithium ions across the NCM811/Li 5.5 PS 4.5 Cl 1.5 interface but also effectively alleviate the interfacial problems. The initial discharge capacity of the as-prepared LATP@NCM811/ Li 5.5 PS 4.5 Cl 1.5 /Li batteries at 0.1 C is 151.5 mAh/g, and the capacity retention rate is 81.6% after 100 cycles at room temperature. The results indicate that interfacial modification with the nanosized LATP coating is an effective strategy for providing more possibilities for commercial application of ASSLBs.

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“…Since CEI layers have low electronic conductivity but high ionic conductivity, they can suppress decomposition of the electrolytes by preventing contact between the electrolyte and LNCM cathode. , Precursors with low electrical conductivity, such as Al 2 O 3 , SiO 2 , and Cr 2 O 3 , have been reported to be effective at forming the CEI layers. In addition, several investigations have revealed that interfacial stability can be improved by coating Li + conductors, such as Li 2 ZrO 3 and Li 2 TiO 3 , which can minimize decreases of specific capacity. Furthermore, recent studies have used organic-based materials at a low temperature through a wet coating process, which can form SO x -, SiO x -, and PO x -based CEI layers …”

Section: Introductionmentioning

confidence: 99%

Rational Design of Multifunctional Surface Modification for Ni-Rich Layered Cathodes of Lithium-Ion Batteries

Kim,

Yim

2023

ACS Appl. Energy Mater.

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Stabilized cathode/sulfide solid electrolyte interface via Li2ZrO3 coating for all-solid-state batteries

Cited by 12 publications

References 39 publications

One Stone, Three Birds: An Air and Interface Stable Argyrodite Solid Electrolyte with Multifunctional Nanoshells

One Stone, Three Birds: An Air and Interface Stable Argyrodite Solid Electrolyte with Multifunctional Nanoshells

Stabilized Cathode/Sulfide Electrolyte Interface through Conformally Interfacial Nanocoating for All-Solid-State Batteries

Rational Design of Multifunctional Surface Modification for Ni-Rich Layered Cathodes of Lithium-Ion Batteries

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